This commit was generated by cvs2svn to compensate for changes in r151500,

which included commits to RCS files with non-trunk default branches.

62 files changed, 0 insertions, 21518 deletions

diff --git a/contrib/groff/README.CVS b/contrib/groff/README.CVS
deleted file mode 100644
index ca284dc..0000000
--- a/contrib/groff/README.CVS
+++ /dev/null
@@ -1,6 +0,0 @@
-You need the following tools to build groff directly from CVS:
-
-  the netpbm package
-  texinfo >= 4.3
-  bison >= 1.875b or byacc
-  ghostscript
diff --git a/contrib/groff/README.WIN32 b/contrib/groff/README.WIN32
deleted file mode 100644
index 478d13a..0000000
--- a/contrib/groff/README.WIN32
+++ /dev/null
@@ -1,68 +0,0 @@
-

-WIN32 port of GROFF and friends done by Blake McBride

-(blake@florida-software.com) 4/14/00.

-

-This port differs from other ports in that it uses the Microsoft

-compiler.  The changes were done such that they only have effect on

-the code when compiled with the Microsoft compiler.

-

-Note that not all preprocessors and output devices have been ported;

-missing are grohtml, grolbp, grn, refer, soelim, and groff.  Besides

-these programs, no utility program has been ported.  Of course,

-gxditview (which only runs on the X Window System, the standard Unix

-GUI) is missing also.

-

-

-The following programs were used, running on Windows NT 4.0:

-

-  Microsoft Visual C++ 6.0

-  Unix utilities under NT (gzip, tar, patch)

-

-

-Build Instructions

-------------------

-

-. Unpack groff (using gzip & tar) as follows:

-

-    cd \

-    gzip -dc groff-1.16.tar.gz | tar xvf -

-

-. Now apply the patch file `win32-diffs':

-

-    cd \groff-1.16

-    patch -p1 < win32-diffs

-

-  Note that with older versions of `patch', you will get a lot of

-  *.orig files (most of them are empty) which can be safely deleted.

-

-. Edit the file `src/include/defs.h' and adapt the path names to

-  your needs.

-

-. Build everything by typing:

-

-    nmake -f Makefile.msc

-

-You are done.

-

-The `bin' directory contains some .cmd files to help show how to run

-stuff.  Since Windows 95/98 doesn't understand .cmd files, if you are

-operating under that OS, you'll have to rename them to .bat files. 

-.bat files do have output redirection problems.

-

-

-The changes I made fall into two categories.

-

-1.  Makefiles.  Several makefiles were added.  All makefiles were named

-    Makefile.msc.

-

-2.  The Groff build includes several scripts which generate auxiliary

-    files used by groff (such as DESC, I, R, prologue, etc). 

-

-

-Directories needed at runtime

------------------------------

-

-bin

-font

-tmac

-mm  (copied, including sub-directories, from contrib/mm)

diff --git a/contrib/groff/contrib/mom/examples/README.mom b/contrib/groff/contrib/mom/examples/README.mom
deleted file mode 100644
index fba1e01..0000000
--- a/contrib/groff/contrib/mom/examples/README.mom
+++ /dev/null
@@ -1,56 +0,0 @@
-The files in this directory show mom in action.  I haven't included
-PostScript output from the files because I want to keep the mom
-archive as lean as possible.  In order to see the PostScript output of
-these files, process them with groff, sending the output either to a
-separate file for previewing with gv (ghostview) or to your printer.
-I don't recommend previewing with gxditview because it doesn't render
-some of mom's effects properly.
-
-All the files are set up for 8.5ix11i paper.
-
-macros.mom
-----------
-
-This file demonstrates the use of typesetting tabs, string tabs,
-line padding, multi-columns and various indent styles, as well as
-some of the refinements and fine-tuning available via macros and
-inline escapes.
-
-Because the file also demonstrates a "cutaround" using a small picture
-(of Tux), the PostScript file has been included in the directory.
-
-typeset.mom
------------
-
-This file contains samples of three of the document styles available
-with the document processing macros, as well as demonstrating the
-use of COLLATE.  The relatively rare BREAK_QUOTE macro is also used.
-The PRINTSTYLE of this file is TYPESET, letting you get a look at mom's
-default behaviour when she typesets a document.  The last sample,
-set in 2 columns, shows a few of the ways in which you can modify
-mom's behaviour.
-
-typewrite.mom
--------------
-
-Using the first two samples from typeset.mom, this file shows what
-"typewritten, double-spaced" documents (PRINTSTYLE TYPEWRITE) look
-like.
-
-letter.mom
-----------
-
-This is just the tutorial example from the momdocs, ready for
-previewing.
-
-elvis_syntax
-------------
-
-For those who use the vi clone, elvis, you can paste this file into
-your elvis.syn file.  Provided your mom documents have the extension
-.mom, they'll come out with colorized syntax highlighting.  The rules
-in elvis_syntax aren't exhaustive, but they go a LONG way to making mom
-files more readable.
-
-I'll be very happy if someone sends me syntax highlighting rules for vim
-and emacs. :)
diff --git a/contrib/groff/contrib/mom/examples/macros.mom b/contrib/groff/contrib/mom/examples/macros.mom
deleted file mode 100644
index a3976f3..0000000
--- a/contrib/groff/contrib/mom/examples/macros.mom
+++ /dev/null
@@ -1,668 +0,0 @@
-\# Basic page setup
-\#
-.PAGE 8.5i 11i \" Printer sheet size
-.L_MARGIN 1i   \" Left margin 1 inch
-.R_MARGIN 1i   \" Right margin 1 inch (calculates the line length)
-\#
-\# Refinements
-\#
-.KERN          \" Automatic pairwise kerning
-.SS 0          \" No extra space between sentences
-.HY            \" Hyphenate
-.LIGATURES     \" Automatic ligature generation
-.SMARTQUOTES   \" Enable smartquotes
-\#
-\# Basic type parameters
-\#
-.FAM T         \" Times Roman family
-.FT  B         \" Bold font
-.PT_SIZE 12    \" Point size
-.LS  14        \" Leading (line spacing)
-.LEFT          \" Set lines flush left, nofill mode
-\#
-\#
-.ALD |1i-1v    \" Advance 1 inch from top of paper to first baseline
-Example 1\*[BU 2]:
-.ALD .25v      \" Advance an extra 1/4 linespace
-.UNDERSCORE 3.75p "T\*[BU 4]asting notes using padding, string tabs \
-and multi-columns"
-.SP            \" Add an extra line space
-\#
-\#
-.FAM H         \" Helvetica family
-.PT_SIZE 10
-.LS  11        \" New leading
-\#
-\# The following uses a combination of padding, string tabs, and the FWD escape
-\# to set up five tabs with 12-point (1-pica) gutters over the full line length.
-\# 
-.SILENT        \" Don't print the next line
-.PAD "\*[ST1]VIN#\*[ST1X]\*[FWD 12p]\*[ST2]ROBE#\*[ST2X]\*[FWD 12p]\*[ST3]NEZ#\*[ST3X]\*[FWD 12p]\*[ST4]BOUCHE#\*[ST4X]\*[FWD 12p]\*[ST5]COMMENTAIRES\*[ST5X]"
-.SILENT OFF    \" Resume normal printing of text
-\#
-\# Now that the string tabs have been marked off, we "set" them.
-\#
-.ST 1 L        \" First string tab flush left, nofill mode (no need for .BR's between input lines)
-.ST 2 L QUAD   \" Remaining tabs are flush left/rag right, fill mode
-.ST 3 L QUAD
-.ST 4 L QUAD
-.ST 5 L QUAD
-\#
-\#
-.TAB 1         \" Call first tab
-.UNDERSCORE "VIN"
-.TN            \" Move to next tab and stay on the same baseline
-.UNDERSCORE "ROBE"
-.TN            \" Ibid
-.UNDERSCORE "NEZ"
-.TN            \" Ibid
-.UNDERSCORE "BOUCHE"
-.TN            \" Ibid
-.UNDERSCORE "COMMENTAIRES"
-.TQ            \" Quit tabs
-\#
-\#
-.ALD 6p        \" Advance an extra 6 points
-.FT  R         \" Change font to roman (medium)
-.MCO           \" Turn multi-column mode on
-\#
-\#
-.TAB 1                 \" Notice that this tab gets set line-for-line
-\*[IT]Peelee Island    \" Set italic
-\*[PREV]Gewürztraminer \" Revert to former font (roman)
-2000
-(Canada)
-.MCR           \" Return to top of column
-.TAB 2         \" Call tab 2; in multi-column mode, don't use .TN
-Jaune pâle.
-.MCR
-.TB 3          \" Notice that from here on, we use the alias TB instead of TAB
-Frais, fruité, ci\%tronné, arômes fortes de lichee et de fruits
-tropicaux.
-.MCR
-.TB 4
-Doux, fruité, bien équilibré avec une bonne acidité.
-.MCR
-.TB 5
-Bon apéro.  Servir avec des plats
-.RW .1
-indiens ou \%chinois.
-.RW 0
-.BR
-Excellent rapport qualité/prix.
-.MCX 8p        \" Multi-column mode off; advance an extra 8 points
-.MCO           \" Re-invoke multi-columns for next wine description
-.TB 1
-\*[IT]Carau Pujol
-\*[ROM]Tannat
-1995
-(Uraguay)
-.MCR
-.TB 2
-Rubis foncé, vio\%lacée, presque opaque.
-.MCR
-.TB 3
-Belles arômes de fruits foncés (prunes, cerises noires, cassis).
-Odeurs tertiares de cuir, cèdre, violets, eucalyptus, avec une trace
-exotique de Band-Aid*\*[BU 12].
-\#
-\# The \*[BU 12], above, pulls the period back so that it falls
-\# underneath the asterisk. \*[BP<#>] could have been used instead
-\# if you prefer to use points rather than kern units.
-\#
-.MCR
-.TB 4
-Très rond, tannins mûres et veloutés, avec un long finis fruité et
-doucement alcoolique.
-.MCR
-.TB 5
-Superbe\|!  Une aubaine à ne pas manquer.  Prêt à boire maintenant.
-.MCX 1v  \" Multi-columns off; advance an extra linespace
-\#
-\# Now, an example of a hanging indent.  This is excessively fussy
-\# from a typographic standpoint in that it hangs the asterisk outside
-\# the current left margin so that the text following it lines up with
-\# with the text in the tasting notes.  Notice that in order to use a
-\# hanging indent, you must first set a left indent.
-\#
-.FT I          \" Change font to italic
-.PT_SIZE -.5   \" Reduce point size by 1/2 point
-.LS -.5        \" Reduce leading by 1/2 point
-.JUSTIFY       \" Set text justified
-\#
-\# Now, move the left margin back by the width of an asterisk plus 2 points...
-\#
-.L_MARGIN -(\w'*'+2p)
-\#
-\# ...and set a left indent equal to the width of an asterisk plus 2 points
-\#
-.IL \w'*'+2p   
-\#
-\# Now, set the hanging indent equal to the left indent, effectively pulling
-\# the first line of the following text back to the new left margin.
-\# Subsequent output lines will be indented by the .IL amount.
-\# Notice that when using the \w inline escape, there's no need to append
-\# a unit of measure to it.
-\#
-.HI \w'*'+2p
-*\*[FWD 1p]The term "Band-Aid" means the slightly sweet, vaguely chemical
-smell associated with medical-grade plastics.  It is often found in
-wines from terroirs in South America.  Provided a wine has a sufficient
-concentration of fruit
-.RW .04   \" Kern the whole next line slightly, so "lipstick" doesn't hyphenate.
-aromas and complex tertiary characteristics, Band-Aid is a Good Thing.
-Otherwise, it smells like cheap lipstick.
-.RW 0     \" Reset kerning to 0
-\#
-\# Notice, above, that although the values for IL and HI are the width
-\# of an asterisk plus 2 points, when setting the first line of text
-\# (the one with the asterisk at the beginning), we put only 1 point of
-\# space after the *.  This is to compensate for the fact that in the
-\# italic font, the letter T doesn't align visually with the rest of
-\# the text.  As already noted, this is an extremely fussy example. :)
-\#
-\#
-\#
-.IQ CLEAR      \" Cancel and clear stored indent values 
-.L_MARGIN 1i   \" Reset left margin to its original value.
-\#
-\#
-.ALD 2P        \" Add 2-picas extra space before next example
-.FAM T
-.FT  B
-.PT_SIZE 12
-.LS  14
-Example 2:
-.ALD .25v
-\#
-.COMMENT       \" COMMENT lets you enter comments without using \# or \"
-In the next line, because the string to be underscored must be
-enclosed by double-quotes, you can't use the double-quote character
-itself around the word "Massaging".  We circumvent this by using the
-groff inline escapes \(lq and \(rq (leftquote and rightquote).
-.COMMENT OFF   \" Remember to turn COMMENT off!
-\#
-.UNDERSCORE 3.75p "\(lqMassaging\(rq \*[BCK 1p]a passage of rag right text"
-.SP            \" Add an extra linespace
-\#
-\#
-.PT_SIZE 12.5
-.LS 14
-.PT_SIZE -1   \" Reduce point size by 1 point
-Passage using groff defaults
-.ALD .5v      \" Add an extra 1/2 line space
-.PT_SIZE +1   \" Restore point size
-.QUAD LEFT    \" Set quad left, fill mode
-.IB 3P        \" Indent 3 picas from both the left and right margins
-.FT R
-The thousand injuries of Fortunato I had borne as I best could;
-but when he ventured upon insult, I vowed revenge.  You, who so well
-know the nature of my soul, will not suppose, however, that I gave
-utterance to a threat.  \*[IT]At length\*[PREV] I would be
-avenged; this was a point definitively settled\(embut the very
-definitiveness with which it was resolved, precluded the idea of
-risk.  I must not only punish, but punish with impunity.  A
-wrong is unredressed when retribution overtakes its redresser.
-It is equally unredressed when the avenger fails to make himself
-felt as such to him who has done the wrong.
-.ALD 6p
-\#
-\# The next line is set quad right, nofill mode, 1/2 point smaller
-\# than the preceding text (using the \*S[...] inline escape.
-\#
-.RIGHT
-\*S[-.5]\(emEdgar Allen Poe, \*[IT]The Cask of Amontillado\*[PREV]\*S[+.5]
-.SP            \" Extra linespace
-.IBQ           \" Disable "indent both"
-\#
-\# The passage above, while acceptable in a longer document, exhibits a
-\# few typographic flaws.  The shape of the right margin rag exhibits
-\# a decidedly "rounded" appearance.  The word "I" stands alone at the
-\# end of the third line.  The space between the 1st and 2nd sentences
-\# ("...revenge. You...") is too large, owing to the letter "Y" that
-\# begins the 2nd sentence.  The spacing between "A wrong..." (line 6)
-\# is equally too large because of the way "A" and "w" fit together.
-\# The em-dash before Edgar isn't vertically centered with the letter "E".
-\# And so on.  The most important correction below is fixing the rag
-\# so that longer and shorter lines alternate.  This is accomplished by
-\# manually breaking lines and then slightly lengthening and shortening
-\# them until a pleasing rag is achieved.  The remainder of the little
-\# flaws are fixed with inline escapes.
-\#
-.FT B
-.PT_SIZE -1
-.LEFT
-The same passage, \*[BU 4]"massaged"
-.ALD .5v
-.FT R
-.PT_SIZE +1 
-.QUAD LEFT
-.HY OFF           \" Turn automatic hyphenation off
-.BR_AT_LINE_KERN  \" Automatically insert a line break (.BR) with each invocation of .RW and .EW 
-.WS +1            \" Increase word space slightly
-.IB               \" Turn "indent both" back on; values are the same as before
-\#
-\#
-The thousand injuries of Fortunato I had borne as I best could; but
-when he ventured upon insult, I \*[BU 2]vowed revenge.  \*[BU 4]Y\*[BU 6]ou,
-\*[BU 4]who so \*[BU 2]well know the nature
-.EW .2
-of my soul, \*[BU 2]will not suppose, however, that I gave utterance to
-a threat.  \*[IT]At
-.EW .2
-length\*[PREV] I would be avenged; this was a point definitively
-settled\(embut the
-.EW .2
-v\*[BU 1]ery definitiveness with which it was resolved, precluded the idea
-of risk.
-.EW 0
-I must not only punish, but punish with impunity.  A \*[BCK 1p]wrong is
-unredressed
-.EW .1
-when retribution overtakes its redresser.  It is equally unredressed
-when the
-.RW .1
-avenger fails to make himself felt as such to him \*[BU 2]who has done
-the wrong.
-.RW  0
-.WS  +0        \" Restore normal wordspacing
-.ALD 6p
-.PT_SIZE -.5
-.RIGHT
-\*[UP 1.5p]\(em\*[DOWN 1.5p]\*[BCK 1p]Edgar \*[BCK 1p]Allen Poe, \*[IT]The Cask of Amontillado\*[PREV]
-.IQ CLEAR      \" Cancel and clear stored values of all indents
-\#
-\#
-.NEWPAGE       \" Start a new page
-.T_MARGIN 1i   \" Set top margin to 1i (approx. equivalent to .ALD |1i-1v above
-\#
-\#
-.FAM T
-.FT  B
-.PT_SIZE 12
-.LS  14
-.LEFT
-Example 3:
-.ALD .25v
-.UNDERSCORE 3.75p "A \*[BU 2]recipe for enumerated lists using indents"
-.SP            \" Add an extra line space
-.FAM N         \" New Century Schoolbook family
-.FT  R
-.PT_SIZE 11
-.LS  13
-.HY            \" Turn hyphenation back on
-.JUSTIFY       \" Justify text
-This example demonstrates the use of left and hanging indents for
-simple enumerated lists.  Nested lists are possible, as the example
-shows; however, the more complex the nesting, the wiser it becomes
-to use (string) tabs, as seen in Example 4.
-\#
-\#
-.JUSTIFY       \" Justify text
-.IL \w'\0.\0'  \" Establish a left indent equal to the width of 2 figure spaces plus a period.
-.HI \w'\0.\0'  \" Establish a hanging indent equal to the size of the left indent.
-.ALD 6p
-\#
-\#
-1.\0This is the first item in the list.  N\*[BU 2]otice how the first line
-"hangs" back from the remaining text, which is otherwise
-indented by the width of by two figure-spaces (digit-width
-spaces) and a period.
-.BR
-.HI            \" Notice that HI doesn't require an argument once the value's been set
-.ALD 6p
-2.\0This is the second item in the list.  As with the above item,
-notice the use of the \*[BU 8]\\0 escape sequence in the input text.  It's
-there to ensure that the space after the number/period combination
-always remains the same (i.e. doesn't stretch when the line is
-justified).  That way, the text of each item always lines up perfectly.
-\#
-\#
-.COMMENT
-Now we're going to set a bullet-point list, indented from the text
-above by 1 pica.  IL arguments are always added to whatever value
-is in already effect for IL, hence all we have to do is tell mom to
-indent (from the current left indent) 1 pica plus the width of the
-bullet character ( \(bu ).  \*[FWD 3p] puts three points of space after
-the bullet so that the bullet and the text are visually separated.
-.COMMENT OFF
-\#
-\#
-.IL 1P+\w'\(bu\*[FWD 3p]'
-\#
-\# Hanging indents are always relative to the current left indent.
-\# The additional 1-pica indent, above, already having been taken
-\# care of, we only want to hang the first lines of bullet list items
-\# back by the width of the bullet character plus its 3 extra
-\# points of space.
-\#
-.ALD 6p
-.HI \w'\(bu\*[FWD 3p]'
-\*[DOWN 1p]\(bu\*[UP 1p]\*[FWD 3p]This is the first line of a sublist with bullets.
-N\*[BU 2]otice how the first line (the one with the bullet) is indented
-exactly one pica from the text of the list item above it, while the
-remaining lines align with the left indent we set above.
-.ALD 6p
-.HI
-\*[DOWN 1p]\(bu\*[UP 1p]\*[FWD 3p]This is the second item of the sublist with bullets.  \*[BU 4]We
-could go on indefinitely, but let's go back to the top level (numbered)
-list...
-\#
-\# The easiest way to return to a previous indent value is by subtraction.
-\# The argument to IL, above, was 1P+\w'\(bu\*[FWD 3p]', so we just reverse
-\# it by putting a minus sign in front.  The parentheses are required
-\# for groff to evaluate the expression properly.
-\#
-.IL -(1P+\w'\(bu\*[FWD 3p]')
-.HI \w'\0.\0'  \" Reset hanging indent for use with numbered items.
-.ALD 6p
-3.\0...and here we are.
-.HI            \" Again, notice that once HI has been set, you don't have to keep passing it an argument.
-.ALD 6p
-4.\0In order not to make the example too long, we'll stop here.
-.IQ CLEAR      \" Don't forget to cancel and/or clear indents!
-\#
-\#
-.FAM T
-.FT  B
-.PT_SIZE 12
-.LS  14
-.LEFT
-.SP
-\#
-\#
-Example 4:
-.ALD .25v
-.UNDERSCORE 3.75p "A \*[BU 2]recipe for nested lists using string tabs"
-.SP
-.FAM N
-.FT  R
-.PT_SIZE 11
-.LS  13
-.JUSTIFY
-Although setting up string tabs is a bit more complex than setting
-up indents, it's \*[BU 3]well worth the effort, especially for nested lists.
-.ALD 6p
-\#
-.COMMENT
-The PAD line, below, sets up two string tabs.  The first (ST1)
-is exactly the length of two figure spaces and a period.  The
-second (ST2) is simply "the remainder of the line."
-.COMMENT OFF
-\#
-.SILENT
-.PAD "\*[ST1]\0.\0\*[ST1X]\*[ST2]#\*[ST2X]"
-.ST 1 L        \" String tabs must be "set" after being marked off in a line
-.ST 2 J        \" ST 1 will be set flush left, nofill; ST 2 will be justified.
-.SILENT OFF
-\#
-\#
-.TB 1
-1.
-.TN    \" Use .TN here so text stays on the same baseline as the number in tab 1
-This is the first item in the list.  N\*[BU 2]otice how, just as in Example 3,
-the first line hangs back from the remaining text, which is otherwise
-indented.
-.ALD 6p
-.TB  1
-2.
-.TN
-This is the second item in the list.  N\*[BU 2]otice that when setting "lists"
-with tabs, there's no need to use the \*[BU 8]\\0 escape sequence after
-the number/period combination in the input text.
-.ALD 6p
-\#
-.COMMENT
-Now, set up the indented bullet-point sublist.  The PAD line
-says: move forward 12 points (1 pica), then mark off a string
-tab (ST3) that's the length of the bullet character; move foward
-another three points, then make the next string tab (ST4) the
-length of remainder of the line.
-.COMMENT OFF
-\#
-.SILENT
-.PAD "\*[FWD 12p]\*[ST3]\(bu\*[ST3X]\*[FWD 3p]\*[ST4]#\*[ST4X]"
-.ST 3 L
-.ST 4 J
-.SILENT OFF
-.ALD 6p
-.TB  3
-\*[DOWN 1p]\(bu\*[UP 1p]
-.TN
-This is the first line of a sublist with bullets.  N\*[BU 2]otice how the
-bullets and the text line up exactly the same as in Example 3.
-.ALD 6p
-.TB  3
-\*[DOWN 1p]\(bu\*[UP 1p]
-.TN
-This is the second item of the sublist with bullets.  For the fun of
-it, lets add in an
-.SPREAD
-en-dashed sub-sublist.
-.BR  \" We're in a fill mode right now, so you *must* terminate the line with BR
-\#
-\#
-.SILENT
-.PAD "\*[FWD 12p]\*[ST5]\(en\*[ST5X]\*[FWD 4p]\*[ST6]#\*[ST6X]"
-.ST 5 L
-.ST 6 J
-.SILENT OFF
-.ALD 6p
-.TB  5
-\*[UP .75p]\(en\*[DOWN .75p]
-.TN
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat,
-sed diam voluptua.
-.ALD 6p
-.TB  5
-\*[UP .75p]\(en\*[DOWN .75p]
-.TN
-At \*[BU 3]vero eos et accusam et justo duo dolores et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est lorem ipsum dolor sit amet.
-.ALD 6p
-.TB  1
-3.
-.TN
-And here we are, back at the top-level numbered list with a minimum
-of muss and fuss,
-.ALD 6p
-.TB  1
-4.
-.TN
-Generally speaking, once you get the hang of string tabs and the
-\*[BD]PAD\*[PREV] macro, you'll find setting up complex nested lists
-(or anything similar to them) easier than with hanging indents.
-.TQ
-\#
-.NEWPAGE
-.FAM T
-.FT  B
-.PT_SIZE 12
-.LS  14
-.LEFT
-Example 5:
-.ALD .25v
-.UNDERSCORE 3.75p "Word spacing"
-.ALD 8p
-.FAM P         \" Palatino family
-.PT_SIZE 11
-.LS  14
-\#
-\# The "label" lines for the following are set in Helvetica bold, one
-\# point smaller than the examples themselves.  This demonstrates the
-\# use of the groff inline escape \f[...] to change both family and
-\# font inline.  It also shows using the mom inline \*S[...].
-\#
-\f[HB]\*S[-1]Normal word spacing\*S[+1]\*[PREV]
-.FT R
-N\*[BU 1]o\*[BU 1]w \*[BU 1]is the time for all good men to come to the aid of the party.
-.ALD 4p
-\f[HB]\*S[-1]Word spacing adjusted by \*[UP 1p]\*[BU 3]+\*[DOWN 1p]\*[BU 1]2\*S[+1]\*[PREV]
-.FT R
-.WS +2
-N\*[BU 1]o\*[BU 1]w \*[BU 1]is the time for all good men to come to the aid of the party.
-.WS  +0
-.ALD 4p
-\f[HB]\*S[-1]Word spacing adjusted by \*[UP 1p]\*[BU 3]+\*[DOWN 1p]4\*S[+1]\*[PREV]
-.FT R
-.WS +4
-N\*[BU 1]o\*[BU 1]w \*[BU 1]is the time for all good men to come to the aid of the party.
-.WS  +0
-.ALD 4p
-\f[HB]\*S[-1]Word spacing adjusted by \*[UP 1p]\*[BU 3]+\*[DOWN 1p]6\*S[+1]\*[PREV]
-.FT R
-.WS +6
-N\*[BU 1]o\*[BU 1]w \*[BU 1]is the time for all good men to come to the aid of the party.
-.WS +0
-.SP 1.5v
-\#
-\#
-.FAM T
-.FT  B
-.PT_SIZE 12
-.LS  14
-.LEFT
-Example 6:
-.ALD .25v
-.UNDERSCORE 3.75p "Line kerning"
-.ALD 8p
-.FAM P         \" Palatino family
-.FT  R
-.PT_SIZE 11
-.LS  15
-\#
-\# Here, we set up some tabs so the examples can go into facing columns.
-\#
-.TAB_SET 1 0 19.5P L
-.TAB_SET 2 19.5P 19.5P L
-\#
-\#
-.MCO           \" Turn multi-columns on
-.TB 1
-\f[HB]\*S[-1]Unkerned line\*S[+1]\*[PREV]
-.FT R
-"But this is \*[IT]important!\/"\*[PREV]she exclaimed.
-.ALD 4p
-\f[HB]\*S[-1]Line "tightened" \(en .RW .1\*S[+1]\*[PREV]
-.RW .1
-"But this is \*[IT]important!\/"\*[PREV]she exclaimed.
-.ALD 4p
-\#
-\# In the next line, notice that because it uses a different family
-\# (Helvetica instead of Palatino), the RW macro doesn't affect it.
-\#
-\f[HB]\*S[-1]Line "tightened" \(en .RW .2\*S[+1]\*[PREV]
-.RW .2
-"But this is \*[IT]important!\/"\*[PREV]she exclaimed.
-.ALD 4p
-\f[HB]\*S[-1]Line "tightened" \(en .RW .3\*S[+1]\*[PREV]
-.RW .3
-"But this is \*[IT]important!\/"\*[PREV]she exclaimed.
-.MCR
-.TB 2
-\f[HB]\*S[-1]Unkerned line\*S[+1]\*[PREV]
-"But this is \*[IT]important!\/"\*[PREV]she exclaimed.
-.ALD 4p
-\f[HB]\*S[-1]Line "loosened" \(en .EW .1\*S[+1]\*[PREV]
-.EW .1
-"But this is \*[IT]important!\/"\*[PREV]she exclaimed.
-.ALD 4p
-\f[HB]\*S[-1]Line "loosened" \(en .EW .2\*S[+1]\*[PREV]
-.EW .2
-"But this is \*[IT]important!\/"\*[PREV]she exclaimed.
-.ALD 4p
-\f[HB]\*S[-1]Line "loosened" \(en .EW .3\*S[+1]\*[PREV]
-.EW .3
-"But this is \*[IT]important!\/"\*[PREV]she exclaimed.
-.MCX 1.5v
-\#
-\#
-.FAM T
-.FT  B
-.PT_SIZE 12
-.LS  14
-.LEFT
-Example 7:
-.ALD .25v
-.UNDERSCORE 3.75p "Cutaround using left\*[FU 2]/right indents, multi columns \
-and a dropcap"
-.SP
-\#
-\#
-.FT R
-.PT_SIZE 11
-.LS 12
-.BR_AT_LINE_KERN OFF    \" In justified text, it's best to have this OFF
-\#
-\#
-.TAB_SET 1  0      18.5P  J
-.TAB_SET 2  20.5P  18.5P  J
-.MCO
-.ALD 5P+9p
-\#
-\# The little picture of tux.
-\#
-.PSPIC penguin.ps
-.MCR
-.TAB 1
-.DROPCAP_FONT B
-.DROPCAP L 3 COND 80 \" i.e. the letter L dropped 3 lines, condensed to 80% of its normal width
-.EW .2
-orem ipsum dolor sit amet, consetetur sa\%dip\%scing elitr, sed diam
-nonumy eir\%mod tempor invidunt ut labore et dolore magna aliquyam erat,
-sed diam voluptua.
-.EW 0
-.TI 1P
-At vero eos et accusam et justo duo dolores et ea rebum.  Stet clita
-kasd gubergren, no sea taki-
-.SPREAD        \" Force justify preceding line before starting indent
-.IR 3.5P
-kimata sanctus est lorem ipsum dolor sit amet.
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor.
-.EW .2
-.TI
-Invidunt ut labore et dolore magna ali\%qu\%yam erat, sed diam voluptua.
-At
-.EW 0
-vero eos et accusam et justo duo dolores et ea rebum.
-.TI
-Stet clita kasd gubergren, no sea ta-
-.SPREAD        \" Force justify preceding line before quitting indent
-.IRQ
-kimata sanctus est lorem ipsum dolor sit amet.  Lorem ipsum dolor
-sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor
-in\%vi\%dunt ut labore et dolore magna aliquyam erat.  Sed diam voluptua,
-at vero eos et accusam et justo duo
-.SPREAD
-.EW .3
-dolores et ea rebum.  Stet clita no kasd guber-
-.SPREAD
-.MCR
-.TB 2
-gren, no sea takimata sanctus est lorem ipsum
-.EW 0
-dolor sit amet.  Consetetur sadipscing elitr, sed diam nonumy eirmod
-tempor invidunt ut labore et dolore.
-.TI
-Magna aliquyam erat, sed diam voluptua, at vero eos et accusam.
-Et justo duo dolores et ea
-.SPREAD
-.IL 3.5P
-rebum, stet clita kasd gubergren.  No sea
-takimata sanctus est, lorem ipsum dolor sit amet.
-.TI
-Sit amet, consetetur sadipscing elitr, sed diam.  Nonumy eirmod tempor
-in\%vi-
-.EW .3
-dunt ut labore et dolore magna.  Ali-
-.EW 0
-quyam erat sed diam voluptua.
-At vero eos et accusam et justo duo dolores et ea rebum stet.
-.ILQ
-.TI
-Dolores et ea rebum stet clita kasd gubergren, no sea takimata
-sanctus.  Sadipscing elitr sed diam, nonumy eirmod tempor, invidunt
-ut labore et dolore magna aliquyam erat.  Sed diam voluptua, at vero
-eos et accusam et justo duo dolores et ea rebum.
diff --git a/contrib/groff/contrib/mom/examples/typeset.mom b/contrib/groff/contrib/mom/examples/typeset.mom
deleted file mode 100644
index 98dd918..0000000
--- a/contrib/groff/contrib/mom/examples/typeset.mom
+++ /dev/null
@@ -1,535 +0,0 @@
-\# This file contains three greeked documents collated together:
-\# two pages of a novelist's outline, two pages of a chapter in DRAFT
-\# style, and three pages of an academic paper set in two columns.
-\# Mom's defaults are used throughout, except for the last one, which
-\# shows off some of the ways of changing mom's behaviour.
-\#
-\# Since the text is greeked, and groff doesn't know how to
-\# hyphenate all that pseudo-latinate nonsense, I've inserted
-\# discretionary hyphens into a number of the the words.
-\#
-\# ===================================================================
-\#
-\# First, a sample "named" document, in this case, an outline.
-\# A novelist wouldn't normally write an outline with numbered heads,
-\# subheads and paraheads.  I've turned the feature on merely to
-\# demonstrate it.
-\#
-\# Reference macros
-\#
-.TITLE    "Lake Attica's Shores"
-.SUBTITLE "A Romance Novel"
-.AUTHOR   "Rosemary Winspeare"
-.DRAFT     1  \" Ignored because COPYSTYLE is FINAL
-.REVISION  2  \" Ignored because COPYSTYLE is FINAL
-\#
-\# Docstyle macros
-\#
-.DOCTYPE    NAMED "Outline"
-.PRINTSTYLE TYPESET
-\#
-\# Additional style macros
-\#
-.NUMBER_PARAHEADS
-\#
-.START
-.PP
-.PARAHEAD "A note on the setting"
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua. Stet clita kasd gubergren, no sea takimata sanctus est.
-At vero eos et accusam et justo duo do\%lo\%re et ea rebum.
-.PP
-Stet clita kasd gubergren, no sea takimata sanctus est.  Lorem ipsum
-dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
-tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam
-voluptua.
-.PP
-Consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt
-ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.  At
-vero, eos et accusam et justo duo do\%lo\%res et ea rebum.  Consetetur
-sadipscing elitr, sed diam nonumy.
-.LINEBREAK
-.PP
-.PARAHEAD "About historical personnages"
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est.  Tempor invidunt ut
-labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  Consetetur sadipscing elitr, sed diam nonumy
-eirmod tempor invidunt ut labore et do\%lo\%re magna.  Tempor invidunt
-ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-.NUMBER_HEADS
-.NUMBER_SUBHEADS
-.HEAD "Part One"
-.SUBHEAD "Chapter 1"
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr,
-sed diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua.  At vero eos et accusam et
-justo duo do\%lo\%res et ea rebum.
-.PP
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est.  Lorem ipsum dolor sit
-amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor
-invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-Stet clita kasd gubergren, no sea takimata sanctus est.
-.SUBHEAD "Chapter 2"
-.PP
-Stet clita kasd gubergren, no sea takimata sanctus est.  Lorem ipsum
-dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
-tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam
-voluptua.  At vero eos et accusam et justo duo do\%lo\%res et ea rebum.
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr,
-sed diam nonumy eirmod tempor invidunt.  Ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua at vero.
-.SUBHEAD "Chapter 3"
-.PP
-Eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita kasd
-gubergren, no sea takimata sanctus est lorem ipsum dolor sit amet.
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  At vero eos et accusam et justo duo do\%lo\%res et
-ea rebum.
-.HEAD "Part Two"
-.SUBHEAD "Chapter 4"
-.PP
-Stet clita kasd gubergren, no sea takimata sanctus est
-lorem ipsum dolor sit amet.  Lorem ipsum dolor sit amet, consetetur
-sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore
-et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-.PP
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est lorem ipsum dolor sit amet.
-.PP
-Nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  At vero eos et accusam et justo duo do\%lo\%res et
-ea rebum.  Lorem ipsum dolor sit amet, consetetur sadipscing elitr,
-sed diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua.  At vero eos et accusam et justo
-duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren, no sea takimata
-sanctus est lorem ipsum dolor sit amet.  Consetetur sadipscing elitr,
-sed diam nonumy eirmod tempor invidunt. 
-.SUBHEAD "Chapter 5"
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed
-diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua.  At vero eos et accusam et
-justo duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren,
-no sea takimata sanctus est lorem ipsum dolor sit amet.
-.PP
-Consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt
-ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.  At vero
-eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita kasd
-gubergren, no sea takimata sanctus.
-.PP
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren.  Sea takimata sanctus est lorem ipsum dolor
-sit amet.  Accusam et justo duo do\%lo\%res et ea rebum
-.SPREAD
-\#
-\# This next bit ensures that the line "...end of sample outline" doesn't
-\# spring the page trap, which would deposit a header at the top of the
-\# next page.  COLLATE doesn't print a page header on the first page of
-\# a collated document, but if the page trap has already deposited one
-\# there, COLLATE can't undo it.  Hence, we turn the trap off
-\# (TRAP OFF), set the line, and put in an EL afterwards.
-\#
-\# Normally, all this isn't necessary when collating documents,
-\# but if you ever have the problem of a page header printing at the
-\# top of a collated document, now you know how to get around it.
-\#
-.TRAP OFF
-.RIGHT
-\*[BD]\&...end of sample outline
-.EL
-.TRAP
-.COLLATE
-\#
-\# =====================================================================
-\#
-\# Next, two sample pages of a chapter, set in DRAFT style, showing
-\# the use of the EPIGRAPH BLOCK macro and the QUOTE macro.
-\#
-\# You'll notice that the starting page number of this "draft" is 1 (in
-\# roman numerals).  COPYSTYLE DRAFT always numbers the first page of a
-\# document 1.
-\#
-\# Reference macros
-\#
-.TITLE    "Lake Attica's Shores"
-.SUBTITLE "A Romance Novel"
-.AUTHOR   "Rosemary Winspeare"
-.CHAPTER   1
-.DRAFT     1  \" Appears in the header because copystyle is DRAFT
-.REVISION  2  \" Appears in the header because copystyle is DRAFT
-\#
-\# Docstyle macros
-\#
-.DOCTYPE    CHAPTER
-.COPYSTYLE  DRAFT
-\#
-\# Additional style macros
-\#
-.EPIGRAPH_FONT I  \" Epigraphs are set in roman by default
-\#
-.START
-.EPIGRAPH BLOCK
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.
-.RIGHT
-\*[ROM]\(emJoseph E. Blough
-.EPIGRAPH OFF
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  At vero eos et accusam et justo duo do\%lo\%res et
-ea rebum.  Stet clita kasd gubergren, no sea takimata sanctus est.
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Lorem ipsum
-dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
-tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam
-voluptua.  At vero eos et accusam et justo duo do\%lo\%res et ea rebum.
-Stet clita kasd gubergren, no sea takimata sanctus est.  At vero eos
-et accusam et justo duo do\%lo\%res et ea rebum.
-.PP
-Stet clita kasd gubergren, no sea takimata sanctus est.  Lorem ipsum
-dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
-tempor invidunt.
-.PP
-"Consetetur sadipscing elitr," dixit ea.
-.PP
-"Sed diam nonumy eirmod tempor invidunt ut labore," dixit eum.
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  Consetetur sadipscing elitr, sed diam nonumy
-eirmod tempor invidunt ut labore et do\%lo\%re magna.
-.PP
-"Lorem ipsum dolor sit amet," dixit ea.
-.PP
-"At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est," dixit eum.  "Sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua."
-.PP
-Consetetur sadipscing elitr, sed diam nonumy eirmod tempor:
-.QUOTE
-Invidunt ut labore et do\%lo\%re
-Magna ali\%quyam erat sed diam
-Voluptua stet clita kasd gubergren
-No sea takimata sanctus est.
-.QUOTE OFF
-.PP
-Justo duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren, no
-sea takimata sanctus est.  Lorem ipsum dolor sit amet, consetetur
-sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore
-et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-.PP
-"Stet clita kasd gubergren," dixit ea.
-.PP
-"No sea takimata sanctus est," dixit eum.
-.PP
-Nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna.  Aliquyam erat
-sed diam voluptua.  At vero eos et accusam et justo, duo do\%lo\%res et
-ea rebum.
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt.  Ut labore et do\%lo\%re magna ali\%quyam
-erat, sed diam voluptua at vero.  Stet clita kasd gubergren, no sea
-takimata sanctus est.  Consetetur sadipscing elitr, sed diam nonumy
-eirmod tempor invidunt ut labore et do\%lo\%re magna.
-.PP
-Invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est.  At vero eos et accusam et
-justo duo do\%lo\%res et ea rebum.  Lorem ipsum dolor sit amet, consetetur
-sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore
-et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.  At vero eos et
-accusam et justo duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren,
-no sea takimata sanctus est.  At vero eos et accusam et justo duo
-do\%lo\%res et ea rebum.
-.RIGHT
-\*[BD]\&...end of sample chapter
-.COLLATE
-\#
-\# =====================================================================
-\#
-\# Finally, a sample academic article, set in two columns with a
-\# 1.5-pica gutter between them.  This example also uses
-\# BLOCKQUOTES, FOOTNOTES, and the relatively rare BREAK_QUOTE.  In
-\# addition, it's set RECTO_VERSO, with differing left and right
-\# margins that alternate from page to page.  (The header also
-\# flips from right to left, which you can see on the 2nd and 3rd
-\# pages).
-\#
-\# In order to accomodate the narrow measure of the columns, there's also
-\# a demonstration of things you can change with both the typesetting
-\# macros and the document processing "control" macros.
-\#
-\# Reference macros
-\#
-.TITLE    "CONTROL EQUALS CHAOS"
-.SUBTITLE "\*[ALD1]The Psychological and Auditory Impact of Serial vs. Aleatoric Music\*[RLD1]"
-.AUTHOR   "Joe Chang" "and" "Brad Hegel Connors"
-\#
-\# Docstyle macros
-\#
-.DOCTYPE    DEFAULT
-.COPYSTYLE  FINAL
-\#
-\# Additional style macros -- general type parameters
-\#
-.L_MARGIN     6P
-.R_MARGIN     4P+6p
-.PT_SIZE      10
-.AUTOLEAD     1.5
-\#
-\# Additional style macros -- change mom's default behaviour
-\#
-.RECTO_VERSO
-.PAGENUM           1
-.HEADER_LEFT      "Chang, Connors"  \" Because we have two authors
-.COLUMNS           2 1P+6p
-.SUBTITLE_SIZE     +1.5
-.AUTHOR_SIZE       +.5
-.DOCHEADER_LEAD    +2p
-.HEADER_SIZE       +1
-.PARA_INDENT       1P
-.SUBHEAD_SIZE      +0
-.BLOCKQUOTE_FAMILY H
-.BLOCKQUOTE_SIZE   -2
-.QUOTE_INDENT      2
-.NUMBER_HEADS      OFF  \" Because we turned them on in the first example
-.NUMBER_SUBHEADS   OFF  \" Ibid
-\#
-.START
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr.  Sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna.  Ali\%quyam
-erat, sed diam voluptua.
-.PP
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren no sea takimata.  Sanctus est, lorem ipsum dolor sit
-amet.  Consetetur sadipscing elitr, sed diam nonumy.  Eirmod tempor
-invidunt ut labore et do\%lo\%re magna ali\%quyam erat.  Sed diam voluptua
-at vero eos et accusam et justo.
-\#
-.BLOCKQUOTE
-Stet clita kasd gubergren, no sea takimata sanctus est lorem.
-Ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy
-eirmod tempor.  Invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua at vero.  Eos et accusam et justo duo do\%lo\%res et
-ea rebum stet clita.\c
-.FOOTNOTE  \" Note the use of \c, above, to keep the word and footnote marker together.
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr.
-.FOOTNOTE OFF
-.BLOCKQUOTE OFF
-\#
-.PP
-Duo do\%lo\%res et ea rebum, stet clita kasd gubergren.  No sea takimata
-sanctus est lorem ipsum dolor sit amet, consetetur sadipscing elitr.
-Sed diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam.  Erat sed diam voluptua at.  Vero eos et accusam et justo
-duo do\%lo\%res et ea rebum stet.  Clita kasd gubergren no sea takimata
-sanctus est.
-.PP
-Nonumy eirmod tempor invidunt, ut labore et do\%lo\%re magna ali\%quyam
-erat?  At vero eos et accusam et justo duo do\%lo\%res et ea.  Rebum stet
-clita kasd gubergren no sea takimata sanctus.  Est lorem ipsum dolor
-sit amet.  Sadipscing\c
-.FOOTNOTE
-Sed diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua.
-.FOOTNOTE OFF
-elitr sed diam nonumy eirmod tempor invidunt.  Ut labore et do\%lo\%re
-magna ali\%quyam erat, sed diam voluptua.  At vero eos et accusam et
-justo duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren no sea.
-\#
-.SUBHEAD "Schoenberg\(em" "The Origins of Serial Pitch Organization"
-\#
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  At vero eos et accusam et justo duo do\%lo\%res et ea
-rebum.  Stet clita kasd gubergren, no sea takimata sanctus est lorem.
-Ipsum dolor sit amet consetetur sadipscing.  Elitr, sed diam nonumy,
-eirmod tempor invidunt ut labore et do\%lo\%re magna.  Ali\%quyam erat sed
-diam voluptua, at vero eos.  Et accusam et justo duo do\%lo\%res et ea
-rebum stet clita kasd gubergren lorem ipsum.  Dolor sit amet
-consetetur, sadipscing elitr, sed diam.  Nonumy eirmod tempor invidunt
-ut labore et do\%lo\%re.  Magna ali\%quyam erat sed diam voluptua at vero.
-Eos et accusam et justo duo do\%lo\%res et ea rebum stet clita kasd.
-Gubergren no sea takimata sanctus est.
-.PP
-Amet consetetur sadipscing elitr sed diam nonumy eirmod.  Tempor
-invidunt ut labore.  Et dolor\%e magna ali\%quyam erat, sed diam voluptua,
-at vero.  Eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren.
-.PP
-No sea takimata\c
-.FOOTNOTE
-Consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt
-ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-.FOOTNOTE OFF
-sanctus est lorem. Ipsum dolor sit amet, consetetur
-sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore
-et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.  At vero eos et
-accusam et justo duo do\%lo\%res et ea rebum amet.  Consetetur sadipscing
-elitr sed diam nonumy eirmod tempor invidunt ut labore, et do\%lo\%re
-magna ali\%quyam erat.  Sed diam voluptua, at vero, eos et accusam et
-justo duo do\%lo\%res et ea rebum.
-\#
-.SUBHEAD "Messiaen to Stockhausen\(em" "The Quest for Absolute Control"
-\#
-.PP
-Vero eos et accusam et justo duo do\%lo\%res et ea rebum amet:
-.QUOTE
-Eirmod tempor invidunt
-Ut labore et do\%lo\%re magna ali\%quyam erat
-Sed diam voluptua
-At vero eos et accusam et justo duo do\%lo\%res.
-.QUOTE OFF
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr
-sed diam.  Nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna.
-Aliquyam erat, sed diam voluptua at vero eos et accusam.  Et
-justo duo do\%lo\%res et ea rebum stet.
-.PP
-Elitr sed diam nonumy eirmod tempor.  Invidunt ut labore et do\%lo\%re
-magna ali\%quyam erat sed.  Diam voluptua at vero eos et accusam et
-justo duo do\%lo\%res et ea rebum.
-\#
-.BLOCKQUOTE
-Sanctus est lorem ipsum dolor sit amet, consetetur sadipscing.  Elitr,
-sed diam nonumy eirmod tempor, invidunt ut labore et do\%lo\%re magna
-ali\%quyam.  Erat sed diam voluptua, at vero eos et accusam et justo
-duo do\%lo\%res et ea rebum amet.  Consetetur sadipsc\%
-ing elitr sed diam nonumy eirmod tempor invidunt ut
-.BREAK_QUOTE  \" Needed because blockquote crosses page AND contain footnotes
-labore.  Et do\%lo\%re magna ali\%quyam erat, sed diam voluptua, at
-vero.  Eos et accusam et justo duo.\c
-.FOOTNOTE
-Labore et do\%lo\%re magna ali\%quyam erat sed diam voluptua.
-.FOOTNOTE OFF
-.BLOCKQUOTE OFF
-\#
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr.  Sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna.
-.PP
-Nonumy eirmod tempor invidunt, ut labore et do\%lo\%re magna ali\%quyam
-erat?  At vero eos et accusam et justo duo do\%lo\%res et ea.  Rebum stet
-clita kasd gubergren no sea takimata sanctus.  Est lorem ipsum dolor
-sit amet.  Sadipscing elitr sed diam nonumy eirmod tempor invidunt.
-Ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.
-Stet clita kasd gubergren no sea.  Ali\%quyam erat, sed diam voluptua.
-\#
-.SUBHEAD "John Cage\(em" "Leaving It All to Chance"
-\#
-.PP
-Sit amet, consetetur sadipscing elitr, sed diam nonumy.  Eirmod tempor
-invidunt ut labore et do\%lo\%re magna.  Ali\%quyam erat, sed diam
-voluptua at vero.  Eos et accusam et justo duo dolores et ea rebum.
-Stet clita kasd gubergren, no sea taki\%mata sanctus est.
-.PP
-Consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt
-ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.  At vero
-eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita kasd
-gubergren, no sea takimata sanctus est lorem.  Ipsum dolor sit amet,
-consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt
-ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.  At vero
-eos et accusam et justo duo do\%lo\%res et ea rebum.
-.PP
-Stet clita kasd gubergren.  No sea takimata sanctus est lorem ipsum
-dolor sit.  Amet consetetur sadipscing elitr, sed diam nonumy eirmod
-tempor.  Invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam
-voluptua, at vero.  Eos et accusam et justo duo do\%lo\%res et ea rebum.
-Stet clita kasd gubergren, no sea takimata.  Sanctus est lorem ipsum
-dolor sit amet consetetur.  Sadipscing elitr sed diam nonumy eirmod
-tempor invidunt.  Ut labore et do\%lo\%re magna ali\%quyam erat, sed diam
-voluptua.  At vero eos et accusam et justo duo do\%lo\%res et ea rebum.
-\#
-.BLOCKQUOTE
-.PP
-Stet clita kasd gubergren no sea.  Takimata sanctus est lorem ipsum
-dolor sit amet.  Consetetur sadipscing elitr sed diam nonumy eirmod
-tempor invidunt ut labore et do\%lo\%re.  Magna ali\%quyam\c
-.FOOTNOTE
-Diam nonumy eirmod tempor invidunt ut labore.
-.FOOTNOTE OFF
-erat, sed diam
-voluptua at vero eos et accusam.  Et justo duo do\%lo\%res et ea rebum,
-stet clita kasd gubergren, no sea takimata.
-.PP
-Sanctus est lorem ipsum.  Dolor sit amet consete-
-.BREAK_QUOTE  \" Needed because blockquote crosses column AND contain footnotes
-tur sadipscing elitr.  Sed diam nonumy eirmod tempor invidunt ut
-labore.  Et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-At vero eos et accusam et justo duo.  Dolores et ea rebum stet clita
-kasd gubergren no sea.
-.PP
-Takimata lorem ipsum dolor sit amet consetetur sadipscing elitr.
-Sed diam, nonumy eirmod tempor, invidunt ut labore et do\%lo\%re magna.
-Aliquyam erat sed diam voluptua.  At vero eos et accusam et
-justo.\c
-.FOOTNOTE
-At vero eos et accusam et justo duo.
-.FOOTNOTE OFF
-.BLOCKQUOTE OFF
-\#
-.PP
-Duo do\%lo\%res et ea rebum, stet clita kasd gubergren, no sea takimata
-sanctus.  Est lorem ipsum.  Dolor sit amet, consetetur sadipscing elitr,
-sed diam nonumy.  Eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua.  At vero eos et accusam.
-.PP
-Et justo duo do\%lo\%res et ea rebum stet clita kasd.  Gubergren
-no sea takimata sanctus est.  Lorem ipsum dolor sit amet, consetetur
-sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore
-et dolore magna ali\%quyam erat, sed diam voluptua.  At vero eos et
-accusam et justo duo dolores et ea rebum.  Stet clita kasd gubergren,
-no sea takimata sanctus est.
-\#
-.SUBHEAD "Beyond Cage\(em" "Catching the Midnight Train"
-\#
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr.  Sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna.  Ali\%quyam
-erat, sed diam voluptua.
-.PP
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren no sea takimata.  Sanctus est, lorem ipsum dolor sit
-amet.  Consetetur sadipscing elitr, sed diam nonumy.  Eirmod tempor
-invidunt ut labore et do\%lo\%re magna ali\%quyam erat.  Sed diam voluptua
-at vero eos et accusam et justo.
-.PP
-Duo do\%lo\%res et ea rebum, stet clita kasd gubergren.  No sea takimata
-sanctus est lorem ipsum dolor sit amet, consetetur sadipscing elitr.
-Sed diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam.  Erat sed diam voluptua at.  Vero eos et accusam et justo
-duo do\%lo\%res et ea rebum stet.  Clita kasd gubergren no sea takimata
-sanctus est.
-.PP
-Nonumy eirmod tempor invidunt, ut labore et do\%lo\%re magna ali\%quyam
-erat?  At vero eos et accusam et justo duo do\%lo\%res et ea.  Rebum stet
-clita kasd gubergren no sea takimata sanctus.  Est lorem ipsum dolor
-sit amet.  Sadipscing\c
-.FOOTNOTE
-Sed diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua.
-.FOOTNOTE OFF
-elitr sed diam nonumy eirmod tempor invidunt.  Ut labore et do\%lo\%re
-magna ali\%quyam erat, sed diam voluptua.  At vero eos et accusam et
-justo duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren no sea
-takimata lorem.  Ipsum dolor sit amet, consetetur sadipscing elitr.
-Sed diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna.
-Ali\%quyam erat, sed diam voluptua.  At vero eos et accusam et justo
-duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren, no sea
-takimata sanctus est.
-.RIGHT
-\*[BD]\&...end of sample article\*[PREV]
-.FINIS
diff --git a/contrib/groff/contrib/mom/examples/typewrite.mom b/contrib/groff/contrib/mom/examples/typewrite.mom
deleted file mode 100644
index b293840d..0000000
--- a/contrib/groff/contrib/mom/examples/typewrite.mom
+++ /dev/null
@@ -1,233 +0,0 @@
-\# A sample of PRINTSTYLE TYPEWRITE.  The file contains the sample
-\# outline and sample draft chapter found in the docprocessing_tyeset.mom
-\# file.  Only two changes have been made: the printstyle (here,
-\# TYPEWRITE instead of the default TYPESET), and the header size
-\# in the sample chapter, reduced by 1 point in order to accomodate
-\# all three parts of the header.  Other than that, the samples have
-\# been left alone so you can assess and get a feel for how PRINTSTYLE
-\# TYPEWRITE behaves.
-\#
-\# ====================================================================
-\#
-\# Sample outline using PRINTSTYLE TYPEWRITE
-\#
-\# Reference macros
-\#
-.TITLE    "Lake Attica's Shores"
-.SUBTITLE "A Romance Novel"
-.AUTHOR   "Rosemary Winspeare"
-.DRAFT     1  \" Ignored because COPYSTYLE is FINAL (the default)
-.REVISION  2  \" Ignored because COPYSTYLE is FINAL (the default)
-\#
-\# Docstyle macros
-\#
-.DOCTYPE    NAMED "Outline"
-.PRINTSTYLE TYPEWRITE
-\#
-\# Additional style macros
-\#
-.NUMBER_PARAHEADS
-\#
-.START
-.PP
-.PARAHEAD "A note on the setting"
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua. Stet clita kasd gubergren, no sea takimata sanctus est.
-At vero eos et accusam et justo duo do\%lo\%re et ea rebum.
-.PP
-Stet clita kasd gubergren, no sea takimata sanctus est.  Lorem ipsum
-dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
-tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam
-voluptua.
-.PP
-Consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt
-ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.  At
-vero, eos et accusam et justo duo do\%lo\%res et ea rebum.  Consetetur
-sadipscing elitr, sed diam nonumy.
-.LINEBREAK
-.PP
-.PARAHEAD "About historical personnages"
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est.  Tempor invidunt ut
-labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  Consetetur sadipscing elitr, sed diam nonumy
-eirmod tempor invidunt ut labore et do\%lo\%re magna.  Tempor invidunt
-ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-.NUMBER_HEADS
-.NUMBER_SUBHEADS
-.HEAD "Part One"
-.SUBHEAD "Chapter 1"
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr,
-sed diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua.  At vero eos et accusam et
-justo duo do\%lo\%res et ea rebum.
-.PP
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est.  Lorem ipsum dolor sit
-amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor
-invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-Stet clita kasd gubergren, no sea takimata sanctus est.
-.SUBHEAD "Chapter 2"
-.PP
-Stet clita kasd gubergren, no sea takimata sanctus est.  Lorem ipsum
-dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
-tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam
-voluptua.  At vero eos et accusam et justo duo do\%lo\%res et ea rebum.
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr,
-sed diam nonumy eirmod tempor invidunt.  Ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua at vero.
-.SUBHEAD "Chapter 3"
-.PP
-Eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita kasd
-gubergren, no sea takimata sanctus est lorem ipsum dolor sit amet.
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  At vero eos et accusam et justo duo do\%lo\%res et
-ea rebum.
-.HEAD "Part Two"
-.SUBHEAD "Chapter 4"
-.PP
-Stet clita kasd gubergren, no sea takimata sanctus est
-lorem ipsum dolor sit amet.  Lorem ipsum dolor sit amet, consetetur
-sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore
-et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-.PP
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est lorem ipsum dolor sit amet.
-.PP
-Nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  At vero eos et accusam et justo duo do\%lo\%res et
-ea rebum.  Lorem ipsum dolor sit amet, consetetur sadipscing elitr,
-sed diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua.  At vero eos et accusam et justo
-duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren, no sea takimata
-sanctus est lorem ipsum dolor sit amet.  Consetetur sadipscing elitr,
-sed diam nonumy eirmod tempor invidunt. 
-.SUBHEAD "Chapter 5"
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed
-diam nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna
-ali\%quyam erat, sed diam voluptua.  At vero eos et accusam et
-justo duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren,
-no sea takimata sanctus est lorem ipsum dolor sit amet.
-.PP
-Consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt
-ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.  At vero
-eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita kasd
-gubergren, no sea takimata sanctus.
-.PP
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren.  Sea takimata sanctus est lorem ipsum dolor
-sit amet.  Accusam et justo duo do\%lo\%res et ea rebum
-.BR
-.RIGHT
-\*[BD]\&...end of sample outline  \" Notice that TYPEWRITE ignores the \*[BD]
-.COLLATE
-\#
-\# =====================================================================
-\#
-\# Sample chapter in COPYSTYLE DRAFT using PRINTSTYLE TYPEWRITE
-\#
-\# Reference macros
-\#
-.TITLE    "Lake Attica's Shores"
-.SUBTITLE "A Romance Novel"
-.AUTHOR   "Rosemary Winspeare"
-.CHAPTER   1
-.DRAFT     1  \" Appears in the header because copystyle is DRAFT
-.REVISION  2  \" Appears in the header because copystyle is DRAFT
-\#
-\# Docstyle macros
-\#
-.DOCTYPE    CHAPTER
-.COPYSTYLE  DRAFT
-\#
-\# Additional style macros
-\#
-.EPIGRAPH_FONT I  \" TYPEWRITE underlines italics
-.HEADER_SIZE -1
-\#
-.START
-.EPIGRAPH BLOCK
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.
-.RIGHT
-\*[ROM]\(emJoseph E. Blough
-.EPIGRAPH OFF
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  At vero eos et accusam et justo duo do\%lo\%res et
-ea rebum.  Stet clita kasd gubergren, no sea takimata sanctus est.
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Lorem ipsum
-dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
-tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam
-voluptua.  At vero eos et accusam et justo duo do\%lo\%res et ea rebum.
-Stet clita kasd gubergren, no sea takimata sanctus est.  At vero eos
-et accusam et justo duo do\%lo\%res et ea rebum.
-.PP
-Stet clita kasd gubergren, no sea takimata sanctus est.  Lorem ipsum
-dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
-tempor invidunt.
-.PP
-"Consetetur sadipscing elitr," dixit ea.
-.PP
-"Sed diam nonumy eirmod tempor invidunt ut labore," dixit eum.
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua.  Consetetur sadipscing elitr, sed diam nonumy
-eirmod tempor invidunt ut labore et do\%lo\%re magna.
-.PP
-"Lorem ipsum dolor sit amet," dixit ea.
-.PP
-"At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est," dixit eum.  "Sed diam
-nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna ali\%quyam erat,
-sed diam voluptua."
-.PP
-Consetetur sadipscing elitr, sed diam nonumy eirmod tempor:
-.QUOTE
-Invidunt ut labore et do\%lo\%re
-Magna ali\%quyam erat sed diam
-Voluptua stet clita kasd gubergren
-No sea takimata sanctus est.
-.QUOTE OFF
-.PP
-Justo duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren, no
-sea takimata sanctus est.  Lorem ipsum dolor sit amet, consetetur
-sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore
-et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-.PP
-"Stet clita kasd gubergren," dixit ea.
-.PP
-"No sea takimata sanctus est," dixit eum.
-.PP
-Nonumy eirmod tempor invidunt ut labore et do\%lo\%re magna.  Aliquyam erat
-sed diam voluptua.  At vero eos et accusam et justo, duo do\%lo\%res et
-ea rebum.
-.PP
-Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam
-nonumy eirmod tempor invidunt.  Ut labore et do\%lo\%re magna ali\%quyam
-erat, sed diam voluptua at vero.  Stet clita kasd gubergren, no sea
-takimata sanctus est.  Consetetur sadipscing elitr, sed diam nonumy
-eirmod tempor invidunt ut labore et do\%lo\%re magna.
-.PP
-Invidunt ut labore et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.
-At vero eos et accusam et justo duo do\%lo\%res et ea rebum.  Stet clita
-kasd gubergren, no sea takimata sanctus est.  At vero eos et accusam et
-justo duo do\%lo\%res et ea rebum.  Lorem ipsum dolor sit amet, consetetur
-sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore
-et do\%lo\%re magna ali\%quyam erat, sed diam voluptua.  At vero eos et
-accusam et justo duo do\%lo\%res et ea rebum.  Stet clita kasd gubergren,
-no sea takimata sanctus est.  At vero eos et accusam et justo duo
-do\%lo\%res et ea rebum.
-.RIGHT
-\*[BD]\&...end of sample chapter  \" Notice that TYPEWRITE ignores the \*[BD]
diff --git a/contrib/groff/doc/groff-10 b/contrib/groff/doc/groff-10
deleted file mode 100644
index c4a7d74..0000000
--- a/contrib/groff/doc/groff-10
+++ /dev/null
@@ -1,485 +0,0 @@
-This is groff, produced by makeinfo version 4.3d from ./groff.texinfo.
-
-This manual documents GNU `troff' version 1.19.
-
-   Copyright (C) 1994-2000, 2001, 2002, 2003 Free Software Foundation,
-Inc.
-
-     Permission is granted to copy, distribute and/or modify this
-     document under the terms of the GNU Free Documentation License,
-     Version 1.1 or any later version published by the Free Software
-     Foundation; with no Invariant Sections, with the Front-Cover texts
-     being `A GNU Manual," and with the Back-Cover Texts as in (a)
-     below.  A copy of the license is included in the section entitled
-     `GNU Free Documentation License."
-
-     (a) The FSF's Back-Cover Text is: `You have freedom to copy and
-     modify this GNU Manual, like GNU software.  Copies published by
-     the Free Software Foundation raise funds for GNU development."
-   
-INFO-DIR-SECTION Typesetting
-START-INFO-DIR-ENTRY
-* Groff: (groff).               The GNU troff document formatting system.
-END-INFO-DIR-ENTRY
-
-
-File: groff,  Node: Register Index,  Next: Macro Index,  Prev: Operator Index,  Up: Top
-
-Register Index
-**************
-
-   The macro package or program a specific register belongs to is
-appended in brackets.
-
-   A register name `x' consisting of exactly one character can be
-accessed as `\nx'.  A register name `xx' consisting of exactly two
-characters can be accessed as `\n(xx'.  Register names `xxx' of any
-length can be accessed as `\n[xxx]'.
-
-* Menu:
-
-* $$:                                    Built-in Registers.
-* %:                                     Page Layout.
-* .$:                                    Parameters.
-* .a:                                    Manipulating Spacing.
-* .A:                                    Built-in Registers.
-* .b:                                    Artificial Fonts.
-* .C:                                    Implementation Differences.
-* .c:                                    Built-in Registers.
-* .cdp:                                  Environments.
-* .ce:                                   Manipulating Filling and Adjusting.
-* .cht:                                  Environments.
-* .color:                                Colors.
-* .csk:                                  Environments.
-* .d:                                    Diversions.
-* .ev:                                   Environments.
-* .f:                                    Font Positions.
-* .F:                                    Built-in Registers.
-* .fam:                                  Font Families.
-* .fn:                                   Font Families.
-* .fp:                                   Font Positions.
-* .g:                                    Built-in Registers.
-* .h:                                    Diversions.
-* .H:                                    Built-in Registers.
-* .height:                               Artificial Fonts.
-* .hla:                                  Manipulating Hyphenation.
-* .hlc:                                  Manipulating Hyphenation.
-* .hlm:                                  Manipulating Hyphenation.
-* .hy:                                   Manipulating Hyphenation.
-* .hym:                                  Manipulating Hyphenation.
-* .hys:                                  Manipulating Hyphenation.
-* .i:                                    Line Layout.
-* .in:                                   Line Layout.
-* .int:                                  Line Control.
-* .j:                                    Manipulating Filling and Adjusting.
-* .k:                                    Page Motions.
-* .kern:                                 Ligatures and Kerning.
-* .l:                                    Line Layout.
-* .L:                                    Manipulating Spacing.
-* .lg:                                   Ligatures and Kerning.
-* .linetabs:                             Tabs and Fields.
-* .ll:                                   Line Layout.
-* .lt:                                   Page Layout.
-* .n:                                    Environments.
-* .ne:                                   Page Location Traps.
-* .ns:                                   Manipulating Spacing.
-* .o:                                    Line Layout.
-* .p:                                    Page Layout.
-* .P:                                    Built-in Registers.
-* .pe:                                   Page Location Traps.
-* .pn:                                   Page Layout.
-* .ps:                                   Fractional Type Sizes.
-* .psr:                                  Fractional Type Sizes.
-* .pvs:                                  Changing Type Sizes.
-* .rj:                                   Manipulating Filling and Adjusting.
-* .s:                                    Changing Type Sizes.
-* .slant:                                Artificial Fonts.
-* .sr:                                   Fractional Type Sizes.
-* .ss:                                   Manipulating Filling and Adjusting.
-* .sss:                                  Manipulating Filling and Adjusting.
-* .t:                                    Page Location Traps.
-* .T:                                    Built-in Registers.
-* .tabs:                                 Tabs and Fields.
-* .trunc:                                Page Location Traps.
-* .u:                                    Manipulating Filling and Adjusting.
-* .v:                                    Changing Type Sizes.
-* .V:                                    Built-in Registers.
-* .vpt:                                  Page Location Traps.
-* .w:                                    Environments.
-* .warn:                                 Debugging.
-* .x:                                    Built-in Registers.
-* .Y:                                    Built-in Registers.
-* .y:                                    Built-in Registers.
-* .z:                                    Diversions.
-* c.:                                    Built-in Registers.
-* ct:                                    Page Motions.
-* dl:                                    Diversions.
-* dn:                                    Diversions.
-* dw:                                    Built-in Registers.
-* dy:                                    Built-in Registers.
-* FF [ms]:                               ms Document Control Registers.
-* FI [ms]:                               ms Document Control Registers.
-* FL [ms]:                               ms Document Control Registers.
-* FM [ms]:                               ms Document Control Registers.
-* HM [ms]:                               ms Document Control Registers.
-* hours:                                 Built-in Registers.
-* hp:                                    Page Motions.
-* LL [ms]:                               ms Document Control Registers.
-* llx:                                   Miscellaneous.
-* lly:                                   Miscellaneous.
-* ln:                                    Built-in Registers.
-* LT [ms]:                               ms Document Control Registers.
-* MINGW [ms] <1>:                        Additional ms Macros.
-* MINGW [ms]:                            ms Document Control Registers.
-* minutes:                               Built-in Registers.
-* mo:                                    Built-in Registers.
-* nl:                                    Page Control.
-* opmaxx:                                Suppressing output.
-* opmaxy:                                Suppressing output.
-* opminx:                                Suppressing output.
-* opminy:                                Suppressing output.
-* PD [ms]:                               ms Document Control Registers.
-* PI [ms]:                               ms Document Control Registers.
-* PO [ms]:                               ms Document Control Registers.
-* PS [ms]:                               ms Document Control Registers.
-* ps4html [grohtml]:                     grohtml specific registers and strings.
-* QI [ms]:                               ms Document Control Registers.
-* rsb:                                   Page Motions.
-* rst:                                   Page Motions.
-* sb:                                    Page Motions.
-* seconds:                               Built-in Registers.
-* skw:                                   Page Motions.
-* slimit:                                Debugging.
-* ssc:                                   Page Motions.
-* st:                                    Page Motions.
-* systat:                                I/O.
-* urx:                                   Miscellaneous.
-* ury:                                   Miscellaneous.
-* VS [ms]:                               ms Document Control Registers.
-* year:                                  Built-in Registers.
-* yr:                                    Built-in Registers.
-
-
-File: groff,  Node: Macro Index,  Next: String Index,  Prev: Register Index,  Up: Top
-
-Macro Index
-***********
-
-   The macro package a specific macro belongs to is appended in
-brackets.  They appear without the leading control character (normally
-`.').
-
-* Menu:
-
-* 1C [ms]:                               ms Multiple Columns.
-* 2C [ms]:                               ms Multiple Columns.
-* [ [ms]:                                ms Insertions.
-* ] [ms]:                                ms Insertions.
-* AB [ms]:                               ms Cover Page Macros.
-* AE [ms]:                               ms Cover Page Macros.
-* AI [ms]:                               ms Cover Page Macros.
-* AM [ms] <1>:                           Additional ms Macros.
-* AM [ms]:                               ms Strings and Special Characters.
-* AT [man]:                              Miscellaneous man macros.
-* AU [ms]:                               ms Cover Page Macros.
-* B [man]:                               Man font macros.
-* B [ms]:                                Highlighting in ms.
-* B1 [ms]:                               ms Displays and Keeps.
-* B2 [ms]:                               ms Displays and Keeps.
-* BD [ms]:                               ms Displays and Keeps.
-* BI [man]:                              Man font macros.
-* BI [ms]:                               Highlighting in ms.
-* BR [man]:                              Man font macros.
-* BT [man]:                              Optional man extensions.
-* BX [ms]:                               Highlighting in ms.
-* CD [ms]:                               ms Displays and Keeps.
-* CT [man]:                              Optional man extensions.
-* CW [man]:                              Optional man extensions.
-* CW [ms] <1>:                           Additional ms Macros.
-* CW [ms]:                               Highlighting in ms.
-* DA [ms]:                               ms Cover Page Macros.
-* De [man]:                              Optional man extensions.
-* DE [ms]:                               ms Displays and Keeps.
-* Ds [man]:                              Optional man extensions.
-* DS [ms] <1>:                           Additional ms Macros.
-* DS [ms]:                               ms Displays and Keeps.
-* DT [man]:                              Miscellaneous man macros.
-* EE [man]:                              Optional man extensions.
-* EF [ms]:                               ms Headers and Footers.
-* EH [ms]:                               ms Headers and Footers.
-* EN [ms]:                               ms Insertions.
-* EQ [ms]:                               ms Insertions.
-* EX [man]:                              Optional man extensions.
-* FE [ms]:                               ms Footnotes.
-* FS [ms]:                               ms Footnotes.
-* G [man]:                               Optional man extensions.
-* GL [man]:                              Optional man extensions.
-* HB [man]:                              Optional man extensions.
-* HP [man]:                              Man usage.
-* I [man]:                               Man font macros.
-* I [ms]:                                Highlighting in ms.
-* IB [man]:                              Man font macros.
-* ID [ms]:                               ms Displays and Keeps.
-* IP [man]:                              Man usage.
-* IP [ms]:                               Lists in ms.
-* IR [man]:                              Man font macros.
-* IX [ms]:                               Additional ms Macros.
-* KE [ms]:                               ms Displays and Keeps.
-* KF [ms]:                               ms Displays and Keeps.
-* KS [ms]:                               ms Displays and Keeps.
-* LD [ms]:                               ms Displays and Keeps.
-* LG [ms]:                               Highlighting in ms.
-* LP [man]:                              Man usage.
-* LP [ms]:                               Paragraphs in ms.
-* MC [ms]:                               ms Multiple Columns.
-* MS [man]:                              Optional man extensions.
-* ND [ms]:                               ms Cover Page Macros.
-* NE [man]:                              Optional man extensions.
-* NH [ms]:                               Headings in ms.
-* NL [ms]:                               Highlighting in ms.
-* NT [man]:                              Optional man extensions.
-* OF [ms]:                               ms Headers and Footers.
-* OH [ms]:                               ms Headers and Footers.
-* P [man]:                               Man usage.
-* PD [man]:                              Miscellaneous man macros.
-* PE [ms]:                               ms Insertions.
-* Pn [man]:                              Optional man extensions.
-* PN [man]:                              Optional man extensions.
-* PP [man]:                              Man usage.
-* PP [ms]:                               Paragraphs in ms.
-* PS [ms]:                               ms Insertions.
-* PT [man]:                              Optional man extensions.
-* PX [ms]:                               ms TOC.
-* QP [ms]:                               Paragraphs in ms.
-* R [man]:                               Optional man extensions.
-* R [ms]:                                Highlighting in ms.
-* RB [man]:                              Man font macros.
-* RD [ms]:                               ms Displays and Keeps.
-* RE [man]:                              Man usage.
-* RE [ms]:                               Indents in ms.
-* RI [man]:                              Man font macros.
-* RN [man]:                              Optional man extensions.
-* RP [ms]:                               ms Cover Page Macros.
-* RS [man]:                              Man usage.
-* RS [ms]:                               Indents in ms.
-* SB [man]:                              Man font macros.
-* SH [man]:                              Man usage.
-* SH [ms]:                               Headings in ms.
-* SM [man]:                              Man font macros.
-* SM [ms]:                               Highlighting in ms.
-* SS [man]:                              Man usage.
-* TA [ms]:                               Tabstops in ms.
-* TB [man]:                              Optional man extensions.
-* TC [ms]:                               ms TOC.
-* TE [ms]:                               ms Insertions.
-* TH [man]:                              Man usage.
-* TL [ms]:                               ms Cover Page Macros.
-* TP [man]:                              Man usage.
-* TS [ms]:                               ms Insertions.
-* UC [man]:                              Miscellaneous man macros.
-* UL [ms]:                               Highlighting in ms.
-* VE [man]:                              Optional man extensions.
-* VS [man]:                              Optional man extensions.
-* XA [ms]:                               ms TOC.
-* XE [ms]:                               ms TOC.
-* XP [ms]:                               Paragraphs in ms.
-* XS [ms]:                               ms TOC.
-
-
-File: groff,  Node: String Index,  Next: Glyph Name Index,  Prev: Macro Index,  Up: Top
-
-String Index
-************
-
-   The macro package or program a specific string belongs to is
-appended in brackets.
-
-   A string name `x' consisting of exactly one character can be
-accessed as `\*x'.  A string name `xx' consisting of exactly two
-characters can be accessed as `\*(xx'.  String names `xxx' of any
-length can be accessed as `\*[xxx]'.
-
-* Menu:
-
-* ! [ms]:                                ms Strings and Special Characters.
-* ' [ms]:                                ms Strings and Special Characters.
-* * [ms]:                                ms Footnotes.
-* *Q [ms]:                               ms Strings and Special Characters.
-* *U [ms]:                               ms Strings and Special Characters.
-* , [ms]:                                ms Strings and Special Characters.
-* - [ms]:                                ms Strings and Special Characters.
-* . [ms]:                                ms Strings and Special Characters.
-* .T:                                    Built-in Registers.
-* 3 [ms]:                                ms Strings and Special Characters.
-* 8 [ms]:                                ms Strings and Special Characters.
-* ? [ms]:                                ms Strings and Special Characters.
-* \*[<colon>] [ms]:                      ms Strings and Special Characters.
-* ^ [ms]:                                ms Strings and Special Characters.
-* _ [ms]:                                ms Strings and Special Characters.
-* ` [ms]:                                ms Strings and Special Characters.
-* ABSTRACT [ms]:                         ms Strings and Special Characters.
-* Ae [ms]:                               ms Strings and Special Characters.
-* ae [ms]:                               ms Strings and Special Characters.
-* CF [ms]:                               ms Headers and Footers.
-* CH [ms]:                               ms Headers and Footers.
-* d- [ms]:                               ms Strings and Special Characters.
-* D- [ms]:                               ms Strings and Special Characters.
-* HF [man]:                              Predefined man strings.
-* LF [ms]:                               ms Headers and Footers.
-* LH [ms]:                               ms Headers and Footers.
-* lq [man]:                              Predefined man strings.
-* MONTH1 [ms]:                           ms Strings and Special Characters.
-* MONTH10 [ms]:                          ms Strings and Special Characters.
-* MONTH11 [ms]:                          ms Strings and Special Characters.
-* MONTH12 [ms]:                          ms Strings and Special Characters.
-* MONTH2 [ms]:                           ms Strings and Special Characters.
-* MONTH3 [ms]:                           ms Strings and Special Characters.
-* MONTH4 [ms]:                           ms Strings and Special Characters.
-* MONTH5 [ms]:                           ms Strings and Special Characters.
-* MONTH6 [ms]:                           ms Strings and Special Characters.
-* MONTH7 [ms]:                           ms Strings and Special Characters.
-* MONTH8 [ms]:                           ms Strings and Special Characters.
-* MONTH9 [ms]:                           ms Strings and Special Characters.
-* o [ms]:                                ms Strings and Special Characters.
-* q [ms]:                                ms Strings and Special Characters.
-* R [man]:                               Predefined man strings.
-* REFERENCES [ms]:                       ms Strings and Special Characters.
-* RF [ms]:                               ms Headers and Footers.
-* RH [ms]:                               ms Headers and Footers.
-* rq [man]:                              Predefined man strings.
-* S [man]:                               Predefined man strings.
-* th [ms]:                               ms Strings and Special Characters.
-* Th [ms]:                               ms Strings and Special Characters.
-* Tm [man]:                              Predefined man strings.
-* TOC [ms]:                              ms Strings and Special Characters.
-* v [ms]:                                ms Strings and Special Characters.
-* www-image-template [grohtml]:          grohtml specific registers and strings.
-* ~ [ms]:                                ms Strings and Special Characters.
-
-
-File: groff,  Node: Glyph Name Index,  Next: Font File Keyword Index,  Prev: String Index,  Up: Top
-
-Glyph Name Index
-****************
-
-   A glyph name `xx' consisting of exactly two characters can be
-accessed as `\(xx'.  Glyph names `xxx' of any length can be accessed as
-`\[xxx]'.
-
-
-File: groff,  Node: Font File Keyword Index,  Next: Program and File Index,  Prev: Glyph Name Index,  Up: Top
-
-Font File Keyword Index
-***********************
-
-* Menu:
-
-* #:                                     Font File Format.
-* ---:                                   Font File Format.
-* biggestfont:                           DESC File Format.
-* charset <1>:                           Font File Format.
-* charset:                               DESC File Format.
-* family <1>:                            DESC File Format.
-* family <2>:                            Font Positions.
-* family:                                Changing Fonts.
-* fonts <1>:                             DESC File Format.
-* fonts <2>:                             Special Fonts.
-* fonts:                                 Using Symbols.
-* hor:                                   DESC File Format.
-* kernpairs:                             Font File Format.
-* ligatures:                             Font File Format.
-* name:                                  Font File Format.
-* papersize:                             DESC File Format.
-* pass_filenames:                        DESC File Format.
-* postpro:                               DESC File Format.
-* prepro:                                DESC File Format.
-* print:                                 DESC File Format.
-* res:                                   DESC File Format.
-* sizes:                                 DESC File Format.
-* sizescale:                             DESC File Format.
-* slant:                                 Font File Format.
-* spacewidth:                            Font File Format.
-* spare1:                                DESC File Format.
-* spare2:                                DESC File Format.
-* special <1>:                           Font File Format.
-* special:                               Artificial Fonts.
-* styles <1>:                            DESC File Format.
-* styles <2>:                            Font Positions.
-* styles <3>:                            Font Families.
-* styles:                                Changing Fonts.
-* tcommand:                              DESC File Format.
-* unitwidth:                             DESC File Format.
-* use_charnames_in_special <1>:          DESC File Format.
-* use_charnames_in_special:              Postprocessor Access.
-* vert:                                  DESC File Format.
-
-
-File: groff,  Node: Program and File Index,  Next: Concept Index,  Prev: Font File Keyword Index,  Up: Top
-
-Program and File Index
-**********************
-
-* Menu:
-
-* an.tmac:                               man.
-* changebar:                             Miscellaneous.
-* composite.tmac:                        Using Symbols.
-* cp1047.tmac:                           Input Encodings.
-* DESC <1>:                              Special Fonts.
-* DESC <2>:                              Using Symbols.
-* DESC <3>:                              Font Positions.
-* DESC <4>:                              Font Families.
-* DESC:                                  Changing Fonts.
-* DESC file format:                      DESC File Format.
-* DESC, and font mounting:               Font Positions.
-* DESC, and use_charnames_in_special:    Postprocessor Access.
-* ditroff:                               History.
-* ec.tmac:                               Input Encodings.
-* eqn:                                   ms Insertions.
-* freeeuro.pfa:                          Input Encodings.
-* geqn:                                  Groff Options.
-* geqn, invocation in manual pages:      Preprocessors in man pages.
-* ggrn:                                  Groff Options.
-* gpic:                                  Groff Options.
-* grap:                                  Groff Options.
-* grefer:                                Groff Options.
-* grefer, invocation in manual pages:    Preprocessors in man pages.
-* groff:                                 Groff Options.
-* grog:                                  grog.
-* grohtml:                               Miscellaneous man macros.
-* gsoelim:                               Groff Options.
-* gtbl:                                  Groff Options.
-* gtbl, invocation in manual pages:      Preprocessors in man pages.
-* gtroff:                                Groff Options.
-* hyphen.us:                             Manipulating Hyphenation.
-* hyphenex.us:                           Manipulating Hyphenation.
-* latin1.tmac:                           Input Encodings.
-* latin2.tmac:                           Input Encodings.
-* latin9.tmac:                           Input Encodings.
-* makeindex:                             Indices.
-* man, invocation of preprocessors:      Preprocessors in man pages.
-* man-old.tmac:                          man.
-* man.local <1>:                         Optional man extensions.
-* man.local:                             Man usage.
-* man.tmac:                              man.
-* man.ultrix:                            Optional man extensions.
-* nrchbar:                               Miscellaneous.
-* papersize.tmac:                        Paper Size.
-* perl:                                  I/O.
-* pic:                                   ms Insertions.
-* post-grohtml:                          Groff Options.
-* pre-grohtml:                           Groff Options.
-* refer:                                 ms Insertions.
-* soelim:                                Debugging.
-* tbl:                                   ms Insertions.
-* trace.tmac:                            Writing Macros.
-* troffrc <1>:                           Line Layout.
-* troffrc <2>:                           Troff and Nroff Mode.
-* troffrc <3>:                           Manipulating Hyphenation.
-* troffrc <4>:                           Paper Size.
-* troffrc:                               Groff Options.
-* troffrc-end <1>:                       Troff and Nroff Mode.
-* troffrc-end <2>:                       Manipulating Hyphenation.
-* troffrc-end:                           Groff Options.
-* tty.tmac:                              Troff and Nroff Mode.
-
diff --git a/contrib/groff/doc/groff-11 b/contrib/groff/doc/groff-11
deleted file mode 100644
index d3050a1..0000000
--- a/contrib/groff/doc/groff-11
+++ /dev/null
@@ -1,1623 +0,0 @@
-This is groff, produced by makeinfo version 4.3d from ./groff.texinfo.
-
-This manual documents GNU `troff' version 1.19.
-
-   Copyright (C) 1994-2000, 2001, 2002, 2003 Free Software Foundation,
-Inc.
-
-     Permission is granted to copy, distribute and/or modify this
-     document under the terms of the GNU Free Documentation License,
-     Version 1.1 or any later version published by the Free Software
-     Foundation; with no Invariant Sections, with the Front-Cover texts
-     being `A GNU Manual," and with the Back-Cover Texts as in (a)
-     below.  A copy of the license is included in the section entitled
-     `GNU Free Documentation License."
-
-     (a) The FSF's Back-Cover Text is: `You have freedom to copy and
-     modify this GNU Manual, like GNU software.  Copies published by
-     the Free Software Foundation raise funds for GNU development."
-   
-INFO-DIR-SECTION Typesetting
-START-INFO-DIR-ENTRY
-* Groff: (groff).               The GNU troff document formatting system.
-END-INFO-DIR-ENTRY
-
-
-File: groff,  Node: Concept Index,  Prev: Program and File Index,  Up: Top
-
-Concept Index
-*************
-
-* Menu:
-
-* ", at end of sentence <1>:             Using Symbols.
-* ", at end of sentence:                 Sentences.
-* ", in a macro argument:                Request and Macro Arguments.
-* %, as delimiter:                       Escapes.
-* &, as delimiter:                       Escapes.
-* ', as a comment:                       Comments.
-* ', at end of sentence <1>:             Using Symbols.
-* ', at end of sentence:                 Sentences.
-* ', delimiting arguments:               Escapes.
-* (, as delimiter:                       Escapes.
-* (, starting a two-character identifier <1>: Escapes.
-* (, starting a two-character identifier: Identifiers.
-* ), as delimiter:                       Escapes.
-* ), at end of sentence <1>:             Using Symbols.
-* ), at end of sentence:                 Sentences.
-* *, as delimiter:                       Escapes.
-* *, at end of sentence <1>:             Using Symbols.
-* *, at end of sentence:                 Sentences.
-* +, and page motion:                    Expressions.
-* +, as delimiter:                       Escapes.
-* -, and page motion:                    Expressions.
-* -, as delimiter:                       Escapes.
-* ., as delimiter:                       Escapes.
-* .h register, difference to nl:         Diversions.
-* .ps register, in comparison with .psr: Fractional Type Sizes.
-* .s register, in comparison with .sr:   Fractional Type Sizes.
-* .S register, Plan 9 alias for .tabs:   Tabs and Fields.
-* .t register, and diversions:           Diversion Traps.
-* .tabs register, Plan 9 alias (.S):     Tabs and Fields.
-* .V register, and vs:                   Changing Type Sizes.
-* /, as delimiter:                       Escapes.
-* 8-bit input:                           Font File Format.
-* <, as delimiter:                       Escapes.
-* <colon>, as delimiter:                 Escapes.
-* =, as delimiter:                       Escapes.
-* >, as delimiter:                       Escapes.
-* [, macro names starting with, and refer: Identifiers.
-* [, starting an identifier <1>:         Escapes.
-* [, starting an identifier:             Identifiers.
-* \!, and output:                        Diversions.
-* \!, and trnt:                          Character Translations.
-* \!, in top-level diversion:            Diversions.
-* \!, incompatibilities with AT&T troff: Implementation Differences.
-* \!, used as delimiter:                 Escapes.
-* \$, when reading text for a macro:     Copy-in Mode.
-* \%, and translations:                  Character Translations.
-* \%, following \X or \Y:                Manipulating Hyphenation.
-* \%, in \X:                             Postprocessor Access.
-* \%, incompatibilities with AT&T troff: Implementation Differences.
-* \%, used as delimiter:                 Escapes.
-* \&, and glyph definitions:             Using Symbols.
-* \&, and translations:                  Character Translations.
-* \&, at end of sentence:                Sentences.
-* \&, escaping control characters:       Requests.
-* \&, in \X:                             Postprocessor Access.
-* \&, incompatibilities with AT&T troff: Implementation Differences.
-* \&, used as delimiter:                 Escapes.
-* \', and translations:                  Character Translations.
-* \', incompatibilities with AT&T troff: Implementation Differences.
-* \', used as delimiter:                 Escapes.
-* \(, and translations:                  Character Translations.
-* \), in \X:                             Postprocessor Access.
-* \), used as delimiter:                 Escapes.
-* \*, and warnings:                      Warnings.
-* \*, incompatibilities with AT&T troff: Implementation Differences.
-* \*, when reading text for a macro:     Copy-in Mode.
-* \, disabling (eo):                     Character Translations.
-* \,, used as delimiter:                 Escapes.
-* \-, and translations:                  Character Translations.
-* \-, incompatibilities with AT&T troff: Implementation Differences.
-* \-, used as delimiter:                 Escapes.
-* \/, used as delimiter:                 Escapes.
-* \0, used as delimiter:                 Escapes.
-* \<colon>, in \X:                       Postprocessor Access.
-* \<colon>, used as delimiter:           Escapes.
-* \<RET>, when reading text for a macro: Copy-in Mode.
-* \<SP>, difference to \~:               Request and Macro Arguments.
-* \<SP>, incompatibilities with AT&T troff: Implementation Differences.
-* \<SP>, used as delimiter:              Escapes.
-* \?, in top-level diversion:            Diversions.
-* \?, incompatibilities with AT&T troff: Implementation Differences.
-* \?, used as delimiter:                 Escapes.
-* \@, used as delimiter:                 Escapes.
-* \[, and translations:                  Character Translations.
-* \\, when reading text for a macro:     Copy-in Mode.
-* \^, incompatibilities with AT&T troff: Implementation Differences.
-* \^, used as delimiter:                 Escapes.
-* \_, and translations:                  Character Translations.
-* \_, incompatibilities with AT&T troff: Implementation Differences.
-* \_, used as delimiter:                 Escapes.
-* \`, and translations:                  Character Translations.
-* \`, incompatibilities with AT&T troff: Implementation Differences.
-* \`, used as delimiter:                 Escapes.
-* \A, allowed delimiters:                Escapes.
-* \a, and translations:                  Character Translations.
-* \A, incompatibilities with AT&T troff: Implementation Differences.
-* \a, used as delimiter:                 Escapes.
-* \B, allowed delimiters:                Escapes.
-* \b, limitations:                       Drawing Requests.
-* \b, possible quote characters:         Escapes.
-* \C, allowed delimiters:                Escapes.
-* \c, and fill mode:                     Line Control.
-* \c, and no-fill mode:                  Line Control.
-* \C, and translations:                  Character Translations.
-* \c, incompatibilities with AT&T troff: Implementation Differences.
-* \c, used as delimiter:                 Escapes.
-* \D'f ...' and horizontal resolution:   Drawing Requests.
-* \D, allowed delimiters:                Escapes.
-* \d, used as delimiter:                 Escapes.
-* \e, and glyph definitions:             Using Symbols.
-* \e, and translations:                  Character Translations.
-* \e, incompatibilities with AT&T troff: Implementation Differences.
-* \e, used as delimiter:                 Escapes.
-* \E, used as delimiter:                 Escapes.
-* \e, used as delimiter:                 Escapes.
-* \F, and changing fonts:                Changing Fonts.
-* \F, and font positions:                Font Positions.
-* \f, and font translations:             Changing Fonts.
-* \f, incompatibilities with AT&T troff: Implementation Differences.
-* \H, allowed delimiters:                Escapes.
-* \h, allowed delimiters:                Escapes.
-* \H, incompatibilities with AT&T troff: Implementation Differences.
-* \H, using + and -:                     Expressions.
-* \H, with fractional type sizes:        Fractional Type Sizes.
-* \L, allowed delimiters:                Escapes.
-* \l, allowed delimiters:                Escapes.
-* \L, and glyph definitions:             Using Symbols.
-* \l, and glyph definitions:             Using Symbols.
-* \N, allowed delimiters:                Escapes.
-* \N, and translations:                  Character Translations.
-* \n, and warnings:                      Warnings.
-* \n, incompatibilities with AT&T troff: Implementation Differences.
-* \n, when reading text for a macro:     Copy-in Mode.
-* \o, possible quote characters:         Escapes.
-* \p, used as delimiter:                 Escapes.
-* \R, after \c:                          Line Control.
-* \R, allowed delimiters:                Escapes.
-* \R, and warnings:                      Warnings.
-* \R, difference to nr:                  Auto-increment.
-* \r, used as delimiter:                 Escapes.
-* \R, using + and -:                     Expressions.
-* \S, allowed delimiters:                Escapes.
-* \s, allowed delimiters:                Escapes.
-* \S, incompatibilities with AT&T troff: Implementation Differences.
-* \s, incompatibilities with AT&T troff: Implementation Differences.
-* \s, using + and -:                     Expressions.
-* \s, with fractional type sizes:        Fractional Type Sizes.
-* \t, and translations:                  Character Translations.
-* \t, and warnings:                      Warnings.
-* \t, used as delimiter:                 Escapes.
-* \u, used as delimiter:                 Escapes.
-* \v, allowed delimiters:                Escapes.
-* \v, internal representation:           Gtroff Internals.
-* \w, allowed delimiters:                Escapes.
-* \x, allowed delimiters:                Escapes.
-* \X, and special characters:            Postprocessor Access.
-* \X, followed by \%:                    Manipulating Hyphenation.
-* \X, possible quote characters:         Escapes.
-* \Y, followed by \%:                    Manipulating Hyphenation.
-* \Z, allowed delimiters:                Escapes.
-* \{, incompatibilities with AT&T troff: Implementation Differences.
-* \{, used as delimiter:                 Escapes.
-* \|, incompatibilities with AT&T troff: Implementation Differences.
-* \|, used as delimiter:                 Escapes.
-* \}, and warnings:                      Warnings.
-* \}, incompatibilities with AT&T troff: Implementation Differences.
-* \}, used as delimiter:                 Escapes.
-* \~, and translations:                  Character Translations.
-* \~, difference to \<SP>:               Request and Macro Arguments.
-* \~, used as delimiter:                 Escapes.
-* ], as part of an identifier:           Identifiers.
-* ], at end of sentence <1>:             Using Symbols.
-* ], at end of sentence:                 Sentences.
-* ], ending an identifier <1>:           Escapes.
-* ], ending an identifier:               Identifiers.
-* ], macro names starting with, and refer: Identifiers.
-* aborting (ab):                         Debugging.
-* absolute position operator (|):        Expressions.
-* accent marks [ms]:                     ms Strings and Special Characters.
-* access of postprocessor:               Postprocessor Access.
-* accessing unnamed glyphs with \N:      Font File Format.
-* activating kerning (kern):             Ligatures and Kerning.
-* activating ligatures (lg):             Ligatures and Kerning.
-* activating track kerning (tkf):        Ligatures and Kerning.
-* ad request, and hyphenation margin:    Manipulating Hyphenation.
-* ad request, and hyphenation space:     Manipulating Hyphenation.
-* adjusting:                             Filling and Adjusting.
-* adjusting and filling, manipulating:   Manipulating Filling and Adjusting.
-* adjustment mode register (.j):         Manipulating Filling and Adjusting.
-* adobe glyph list (AGL):                Using Symbols.
-* AGL (adobe glyph list):                Using Symbols.
-* alias, diversion, creating (als):      Strings.
-* alias, macro, creating (als):          Strings.
-* alias, number register, creating (aln): Setting Registers.
-* alias, string, creating (als):         Strings.
-* als request, and \$0:                  Parameters.
-* am, am1, ami requests, and warnings:   Warnings.
-* annotations:                           Footnotes and Annotations.
-* appending to a diversion (da):         Diversions.
-* appending to a file (opena):           I/O.
-* appending to a macro (am):             Writing Macros.
-* appending to a string (as):            Strings.
-* arc, drawing (\D'a ...'):              Drawing Requests.
-* argument delimiting characters:        Escapes.
-* arguments to requests and macros:      Request and Macro Arguments.
-* arguments, macro (\$):                 Parameters.
-* arguments, of strings:                 Strings.
-* arithmetic operators:                  Expressions.
-* artificial fonts:                      Artificial Fonts.
-* as, as1 requests, and comments:        Comments.
-* as, as1 requests, and warnings:        Warnings.
-* ASCII approximation output register (.A) <1>: Built-in Registers.
-* ASCII approximation output register (.A): Groff Options.
-* ASCII, output encoding:                Groff Options.
-* asciify request, and writem:           I/O.
-* assigning formats (af):                Assigning Formats.
-* assignments, indirect:                 Interpolating Registers.
-* assignments, nested:                   Interpolating Registers.
-* AT&T troff, ms macro package differences: Differences from AT&T ms.
-* auto-increment:                        Auto-increment.
-* available glyphs, list (`groff_char(7)' man page): Using Symbols.
-* backslash, printing (\\, \e, \E, \[rs]) <1>: Implementation Differences.
-* backslash, printing (\\, \e, \E, \[rs]): Escapes.
-* backspace character:                   Identifiers.
-* backspace character, and translations: Character Translations.
-* backtrace of input stack (backtrace):  Debugging.
-* baseline:                              Sizes.
-* basic unit (u):                        Measurements.
-* basics of macros:                      Basics.
-* bd request, and font styles:           Font Families.
-* bd request, and font translations:     Changing Fonts.
-* bd request, incompatibilities with AT&T troff: Implementation Differences.
-* begin of conditional block (\{):       if-else.
-* beginning diversion (di):              Diversions.
-* blank line <1>:                        Requests.
-* blank line:                            Implicit Line Breaks.
-* blank line (sp):                       Basics.
-* blank line macro (blm) <1>:            Blank Line Traps.
-* blank line macro (blm) <2>:            Requests.
-* blank line macro (blm):                Implicit Line Breaks.
-* blank line traps:                      Blank Line Traps.
-* blank lines, disabling:                Manipulating Spacing.
-* block, conditional, begin (\{):        if-else.
-* block, condititional, end (\}):        if-else.
-* bold face [man]:                       Man font macros.
-* bold face, imitating (bd):             Artificial Fonts.
-* bottom margin:                         Page Layout.
-* bounding box:                          Miscellaneous.
-* box rule glyph (\[br]):                Drawing Requests.
-* box, boxa requests, and warnings:      Warnings.
-* boxa request, and dn (dl):             Diversions.
-* bp request, and top-level diversion:   Page Control.
-* bp request, and traps (.pe):           Page Location Traps.
-* bp request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* bp request, using + and -:             Expressions.
-* br glyph, and cflags:                  Using Symbols.
-* break <1>:                             Manipulating Filling and Adjusting.
-* break:                                 Basics.
-* break (br):                            Basics.
-* break request, in a while loop:        while.
-* break, implicit:                       Implicit Line Breaks.
-* built-in registers:                    Built-in Registers.
-* bulleted list, example markup [ms]:    Lists in ms.
-* c unit:                                Measurements.
-* calling convention of preprocessors:   Preprocessors in man pages.
-* capabilities of groff:                 groff Capabilities.
-* ce request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* ce request, difference to .ad c:       Manipulating Filling and Adjusting.
-* centered text:                         Manipulating Filling and Adjusting.
-* centering lines (ce) <1>:              Manipulating Filling and Adjusting.
-* centering lines (ce):                  Basics.
-* centimeter unit (c):                   Measurements.
-* cf request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* changing font family (fam, \F):        Font Families.
-* changing font position (\f):           Font Positions.
-* changing font style (sty):             Font Families.
-* changing fonts (ft, \f):               Changing Fonts.
-* changing format, and read-only registers: Assigning Formats.
-* changing the font height (\H):         Artificial Fonts.
-* changing the font slant (\S):          Artificial Fonts.
-* changing the page number character (pc): Page Layout.
-* changing trap location (ch):           Page Location Traps.
-* changing type sizes (ps, \s):          Changing Type Sizes.
-* changing vertical line spacing (vs):   Changing Type Sizes.
-* char request, and soft hyphen character: Manipulating Hyphenation.
-* char request, and translations:        Character Translations.
-* char request, used with \N:            Using Symbols.
-* character:                             Using Symbols.
-* character properties (cflags):         Using Symbols.
-* character translations:                Character Translations.
-* character, backspace:                  Identifiers.
-* character, backspace, and translations: Character Translations.
-* character, control (.):                Requests.
-* character, control, changing (cc):     Character Translations.
-* character, defining (char):            Using Symbols.
-* character, defining fallback (fchar, fschar, schar): Using Symbols.
-* character, escape, changing (ec):      Character Translations.
-* character, escape, while defining glyph: Using Symbols.
-* character, field delimiting (fc):      Fields.
-* character, field padding (fc):         Fields.
-* character, hyphenation (\%):           Manipulating Hyphenation.
-* character, leader repetition (lc):     Leaders.
-* character, leader, and translations:   Character Translations.
-* character, leader, non-interpreted (\a): Leaders.
-* character, named (\C):                 Using Symbols.
-* character, newline:                    Escapes.
-* character, newline, and translations:  Character Translations.
-* character, no-break control ('):       Requests.
-* character, no-break control, changing (c2): Character Translations.
-* character, soft hyphen, setting (shc): Manipulating Hyphenation.
-* character, space:                      Escapes.
-* character, special:                    Character Translations.
-* character, tab:                        Escapes.
-* character, tab repetition (tc):        Tabs and Fields.
-* character, tab, and translations:      Character Translations.
-* character, tab, non-interpreted (\t):  Tabs and Fields.
-* character, tabulator:                  Tab Stops.
-* character, transparent <1>:            Using Symbols.
-* character, transparent:                Sentences.
-* character, whitespace:                 Identifiers.
-* character, zero width space (\&) <1>:  Drawing Requests.
-* character, zero width space (\&) <2>:  Ligatures and Kerning.
-* character, zero width space (\&):      Requests.
-* characters, argument delimiting:       Escapes.
-* characters, end-of-sentence:           Using Symbols.
-* characters, hyphenation:               Using Symbols.
-* characters, input, and output glyphs, compatibility with AT&T troff: Implementation Differences.
-* characters, invalid for trf request:   I/O.
-* characters, invalid input:             Identifiers.
-* characters, overlapping:               Using Symbols.
-* characters, special:                   Special Characters.
-* characters, unnamed, accessing with \N: Font File Format.
-* circle, drawing (\D'c ...'):           Drawing Requests.
-* circle, solid, drawing (\D'C ...'):    Drawing Requests.
-* closing file (close):                  I/O.
-* code, hyphenation (hcode):             Manipulating Hyphenation.
-* color, default:                        Colors.
-* colors:                                Colors.
-* colors, fill, unnamed (\D'F...'):      Drawing Requests.
-* command prefix:                        Environment.
-* command-line options:                  Groff Options.
-* commands, embedded:                    Embedded Commands.
-* comments:                              Comments.
-* comments in font files:                Font File Format.
-* comments, lining up with tabs:         Comments.
-* comments, with ds:                     Strings.
-* common features:                       Common Features.
-* common name space of macros, diversions, and strings: Strings.
-* comparison operators:                  Expressions.
-* compatibility mode <1>:                Implementation Differences.
-* compatibility mode:                    Warnings.
-* composite glyph names:                 Using Symbols.
-* conditional block, begin (\{):         if-else.
-* conditional block, end (\}):           if-else.
-* conditional page break (ne):           Page Control.
-* conditionals and loops:                Conditionals and Loops.
-* consecutive hyphenated lines (hlm):    Manipulating Hyphenation.
-* constant glyph space mode (cs):        Artificial Fonts.
-* contents, table of <1>:                Leaders.
-* contents, table of:                    Table of Contents.
-* continuation, input line (\):          Line Control.
-* continuation, output line (\c):        Line Control.
-* continue request, in a while loop:     while.
-* continuous underlining (cu):           Artificial Fonts.
-* control character (.):                 Requests.
-* control character, changing (cc):      Character Translations.
-* control character, no-break ('):       Requests.
-* control character, no-break, changing (c2): Character Translations.
-* control, line:                         Line Control.
-* control, page:                         Page Control.
-* conventions for input:                 Input Conventions.
-* copy-in mode:                          Copy-in Mode.
-* copy-in mode, and macro arguments:     Parameters.
-* copy-in mode, and write requests:      I/O.
-* copying environment (evc):             Environments.
-* correction between italic and roman glyph (\/, \,): Ligatures and Kerning.
-* correction, italic (\/):               Ligatures and Kerning.
-* correction, left italic (\,):          Ligatures and Kerning.
-* cover page macros, [ms]:               ms Cover Page Macros.
-* cp request, and glyph definitions:     Using Symbols.
-* cp1047, input encoding:                Input Encodings.
-* cp1047, output encoding:               Groff Options.
-* creating alias, for diversion (als):   Strings.
-* creating alias, for macro (als):       Strings.
-* creating alias, for number register (aln): Setting Registers.
-* creating alias, for string (als):      Strings.
-* creating new characters (char):        Using Symbols.
-* credits:                               Credits.
-* cs request, and font styles:           Font Families.
-* cs request, and font translations:     Changing Fonts.
-* cs request, incompatibilities with AT&T troff: Implementation Differences.
-* cs request, with fractional type sizes: Fractional Type Sizes.
-* current directory:                     Macro Directories.
-* current input file name register (.F): Built-in Registers.
-* current time:                          I/O.
-* current time, hours (hours):           Built-in Registers.
-* current time, minutes (minutes):       Built-in Registers.
-* current time, seconds (seconds):       Built-in Registers.
-* da request, and dn (dl):               Diversions.
-* da request, and warnings:              Warnings.
-* date, day of the month register (dy):  Built-in Registers.
-* date, day of the week register (dw):   Built-in Registers.
-* date, month of the year register (mo): Built-in Registers.
-* date, year register (year, yr):        Built-in Registers.
-* day of the month register (dy):        Built-in Registers.
-* day of the week register (dw):         Built-in Registers.
-* de request, and while:                 while.
-* de, de1, dei requests, and warnings:   Warnings.
-* debugging:                             Debugging.
-* default color:                         Colors.
-* default indentation [man]:             Miscellaneous man macros.
-* default indentation, resetting [man]:  Man usage.
-* default units:                         Default Units.
-* defining character (char):             Using Symbols.
-* defining fallback character (fchar, fschar, schar): Using Symbols.
-* defining glyph (char):                 Using Symbols.
-* defining symbol (char):                Using Symbols.
-* delayed text:                          Footnotes and Annotations.
-* delimited arguments, incompatibilities with AT&T troff: Implementation Differences.
-* delimiting character, for fields (fc): Fields.
-* delimiting characters for arguments:   Escapes.
-* depth, of last glyph (.cdp):           Environments.
-* DESC file, format:                     DESC File Format.
-* device resolution:                     DESC File Format.
-* devices for output <1>:                Output Devices.
-* devices for output:                    Output device intro.
-* dg glyph, at end of sentence <1>:      Using Symbols.
-* dg glyph, at end of sentence:          Sentences.
-* di request, and warnings:              Warnings.
-* differences in implementation:         Implementation Differences.
-* digit width space (\0):                Page Motions.
-* digits, and delimiters:                Escapes.
-* dimensions, line:                      Line Layout.
-* directories for fonts:                 Font Directories.
-* directories for macros:                Macro Directories.
-* directory, current:                    Macro Directories.
-* directory, for tmac files:             Macro Directories.
-* directory, home:                       Macro Directories.
-* directory, platform-specific:          Macro Directories.
-* directory, site-specific <1>:          Font Directories.
-* directory, site-specific:              Macro Directories.
-* disabling \ (eo):                      Character Translations.
-* disabling hyphenation (\%):            Manipulating Hyphenation.
-* discardable horizontal space:          Manipulating Filling and Adjusting.
-* discarded space in traps:              Manipulating Spacing.
-* displays:                              Displays.
-* displays [ms]:                         ms Displays and Keeps.
-* distance to next trap register (.t):   Page Location Traps.
-* ditroff, the program:                  History.
-* diversion name register (.z):          Diversions.
-* diversion trap, setting (dt):          Diversion Traps.
-* diversion traps:                       Diversion Traps.
-* diversion, appending (da):             Diversions.
-* diversion, beginning (di):             Diversions.
-* diversion, creating alias (als):       Strings.
-* diversion, ending (di):                Diversions.
-* diversion, nested:                     Diversions.
-* diversion, removing (rm):              Strings.
-* diversion, renaming (rn):              Strings.
-* diversion, stripping final newline:    Strings.
-* diversion, top-level:                  Diversions.
-* diversion, top-level, and \!:          Diversions.
-* diversion, top-level, and \?:          Diversions.
-* diversion, top-level, and bp:          Page Control.
-* diversion, unformatting (asciify):     Diversions.
-* diversion, vertical position in, register (.d): Diversions.
-* diversions:                            Diversions.
-* diversions, and traps:                 Page Location Traps.
-* diversions, shared name space with macros and strings: Strings.
-* dl register, and da (boxa):            Diversions.
-* dn register, and da (boxa):            Diversions.
-* documents, multi-file:                 Debugging.
-* documents, structuring the source code: Requests.
-* double quote, in a macro argument:     Request and Macro Arguments.
-* double-spacing (ls) <1>:               Manipulating Spacing.
-* double-spacing (ls):                   Basics.
-* double-spacing (vs, pvs):              Changing Type Sizes.
-* drawing a circle (\D'c ...'):          Drawing Requests.
-* drawing a line (\D'l ...'):            Drawing Requests.
-* drawing a polygon (\D'p ...'):         Drawing Requests.
-* drawing a solid circle (\D'C ...'):    Drawing Requests.
-* drawing a solid ellipse (\D'E ...'):   Drawing Requests.
-* drawing a solid polygon (\D'P ...'):   Drawing Requests.
-* drawing a spline (\D'~ ...'):          Drawing Requests.
-* drawing an arc (\D'a ...'):            Drawing Requests.
-* drawing an ellipse (\D'e ...'):        Drawing Requests.
-* drawing horizontal lines (\l):         Drawing Requests.
-* drawing requests:                      Drawing Requests.
-* drawing vertical lines (\L):           Drawing Requests.
-* ds request, and comments:              Strings.
-* ds request, and double quotes:         Request and Macro Arguments.
-* ds request, and leading spaces:        Strings.
-* ds, ds1 requests, and comments:        Comments.
-* ds, ds1 requests, and warnings:        Warnings.
-* dumping number registers (pnr):        Debugging.
-* dumping symbol table (pm):             Debugging.
-* dumping traps (ptr):                   Debugging.
-* EBCDIC encoding:                       Tab Stops.
-* EBCDIC encoding of a tab:              Tabs and Fields.
-* EBCDIC encoding of backspace:          Identifiers.
-* EBCDIC, input encoding:                Input Encodings.
-* EBCDIC, output encoding:               Groff Options.
-* el request, and warnings:              Warnings.
-* ellipse, drawing (\D'e ...'):          Drawing Requests.
-* ellipse, solid, drawing (\D'E ...'):   Drawing Requests.
-* em glyph, and cflags:                  Using Symbols.
-* em unit (m):                           Measurements.
-* embedded commands:                     Embedded Commands.
-* embedding PostScript:                  Embedding PostScript.
-* embolding of special fonts:            Artificial Fonts.
-* empty line:                            Implicit Line Breaks.
-* empty line (sp):                       Basics.
-* empty space before a paragraph [man]:  Miscellaneous man macros.
-* en unit (n):                           Measurements.
-* enabling vertical position traps (vpt): Page Location Traps.
-* encoding, EBCDIC:                      Tab Stops.
-* encoding, input, cp1047:               Input Encodings.
-* encoding, input, EBCDIC:               Input Encodings.
-* encoding, input, latin-1 (ISO 8859-1): Input Encodings.
-* encoding, input, latin-2 (ISO 8859-2): Input Encodings.
-* encoding, input, latin-9 (latin-0, ISO 8859-15): Input Encodings.
-* encoding, output, ASCII:               Groff Options.
-* encoding, output, cp1047:              Groff Options.
-* encoding, output, EBCDIC:              Groff Options.
-* encoding, output, latin-1 (ISO 8859-1): Groff Options.
-* encoding, output, utf-8:               Groff Options.
-* end of conditional block (\}):         if-else.
-* end-of-input macro (em):               End-of-input Traps.
-* end-of-input trap, setting (em):       End-of-input Traps.
-* end-of-input traps:                    End-of-input Traps.
-* end-of-sentence characters:            Using Symbols.
-* ending diversion (di):                 Diversions.
-* environment number/name register (.ev): Environments.
-* environment variables:                 Environment.
-* environment, copying (evc):            Environments.
-* environment, dimensions of last glyph (.w, .cht, .cdp, .csk): Environments.
-* environment, previous line length (.n): Environments.
-* environment, switching (ev):           Environments.
-* environments:                          Environments.
-* eqn, the program:                      geqn.
-* equations [ms]:                        ms Insertions.
-* escape character, changing (ec):       Character Translations.
-* escape character, while defining glyph: Using Symbols.
-* escapes:                               Escapes.
-* escaping newline characters, in strings: Strings.
-* ex request, use in debugging:          Debugging.
-* ex request, used with nx and rd:       I/O.
-* example markup, bulleted list [ms]:    Lists in ms.
-* example markup, glossary-style list [ms]: Lists in ms.
-* example markup, multi-page table [ms]: Example multi-page table.
-* example markup, numbered list [ms]:    Lists in ms.
-* example markup, title page:            ms Cover Page Macros.
-* examples of invocation:                Invocation Examples.
-* exiting (ex):                          Debugging.
-* expansion of strings (\*):             Strings.
-* explicit hyphen (\%):                  Manipulating Hyphenation.
-* expression, order of evaluation:       Expressions.
-* expressions:                           Expressions.
-* expressions, and space characters:     Expressions.
-* extra post-vertical line space (\x):   Changing Type Sizes.
-* extra post-vertical line space register (.a): Manipulating Spacing.
-* extra pre-vertical line space (\x):    Changing Type Sizes.
-* extra spaces:                          Filling and Adjusting.
-* extremum operators (>?, <?):           Expressions.
-* f unit:                                Measurements.
-* f unit, and colors:                    Colors.
-* fallback character, defining (fchar, fschar, schar): Using Symbols.
-* fallback glyph, removing definition (rchar, rfschar): Using Symbols.
-* fam request, and changing fonts:       Changing Fonts.
-* fam request, and font positions:       Font Positions.
-* families, font:                        Font Families.
-* FDL, GNU Free Documentation License:   GNU Free Documentation License.
-* features, common:                      Common Features.
-* fi request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* field delimiting character (fc):       Fields.
-* field padding character (fc):          Fields.
-* fields:                                Fields.
-* fields, and tabs:                      Tabs and Fields.
-* figures [ms]:                          ms Insertions.
-* file formats:                          File formats.
-* file, appending to (opena):            I/O.
-* file, closing (close):                 I/O.
-* file, inclusion (so):                  I/O.
-* file, opening (open):                  I/O.
-* file, processing next (nx):            I/O.
-* file, writing to (write):              I/O.
-* files, font:                           Font Files.
-* files, macro, searching:               Macro Directories.
-* fill colors, unnamed (\D'F...'):       Drawing Requests.
-* fill mode <1>:                         Warnings.
-* fill mode <2>:                         Manipulating Filling and Adjusting.
-* fill mode:                             Implicit Line Breaks.
-* fill mode (fi):                        Manipulating Filling and Adjusting.
-* fill mode, and \c:                     Line Control.
-* filling:                               Filling and Adjusting.
-* filling and adjusting, manipulating:   Manipulating Filling and Adjusting.
-* final newline, stripping in diversions: Strings.
-* fl request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* floating keep:                         Displays.
-* flush output (fl):                     Debugging.
-* font description file, format <1>:     Font File Format.
-* font description file, format:         DESC File Format.
-* font directories:                      Font Directories.
-* font families:                         Font Families.
-* font family, changing (fam, \F):       Font Families.
-* font file, format:                     Font File Format.
-* font files:                            Font Files.
-* font files, comments:                  Font File Format.
-* font for underlining (uf):             Artificial Fonts.
-* font height, changing (\H):            Artificial Fonts.
-* font path:                             Font Directories.
-* font position register (.f):           Font Positions.
-* font position, changing (\f):          Font Positions.
-* font positions:                        Font Positions.
-* font selection [man]:                  Man font macros.
-* font slant, changing (\S):             Artificial Fonts.
-* font style, changing (sty):            Font Families.
-* font styles:                           Font Families.
-* font, mounting (fp):                   Font Positions.
-* font, previous (ft, \f[], \fP):        Changing Fonts.
-* fonts <1>:                             Changing Fonts.
-* fonts:                                 Fonts and Symbols.
-* fonts, artificial:                     Artificial Fonts.
-* fonts, changing (ft, \f):              Changing Fonts.
-* fonts, PostScript:                     Font Families.
-* fonts, searching:                      Font Directories.
-* fonts, special:                        Special Fonts.
-* footers <1>:                           Page Location Traps.
-* footers:                               Page Layout.
-* footers [ms]:                          ms Headers and Footers.
-* footnotes:                             Footnotes and Annotations.
-* footnotes [ms]:                        ms Footnotes.
-* form letters:                          I/O.
-* format of font description file:       DESC File Format.
-* format of font description files:      Font File Format.
-* format of font files:                  Font File Format.
-* format of register (\g):               Assigning Formats.
-* formats, assigning (af):               Assigning Formats.
-* formats, file:                         File formats.
-* fp request, and font translations:     Changing Fonts.
-* fp request, incompatibilities with AT&T troff: Implementation Differences.
-* fractional point sizes <1>:            Implementation Differences.
-* fractional point sizes:                Fractional Type Sizes.
-* fractional type sizes <1>:             Implementation Differences.
-* fractional type sizes:                 Fractional Type Sizes.
-* french-spacing:                        Sentences.
-* fspecial request, and font styles:     Font Families.
-* fspecial request, and font translations: Changing Fonts.
-* fspecial request, and glyph search order: Using Symbols.
-* fspecial request, and imitating bold:  Artificial Fonts.
-* ft request, and font translations:     Changing Fonts.
-* geqn, invoking:                        Invoking geqn.
-* geqn, the program:                     geqn.
-* GGL (groff glyph list):                Using Symbols.
-* ggrn, invoking:                        Invoking ggrn.
-* ggrn, the program:                     ggrn.
-* glossary-style list, example markup [ms]: Lists in ms.
-* glyph:                                 Using Symbols.
-* glyph for line drawing:                Drawing Requests.
-* glyph names, composite:                Using Symbols.
-* glyph pile (\b):                       Drawing Requests.
-* glyph properties (cflags):             Using Symbols.
-* glyph, box rule (\[br]):               Drawing Requests.
-* glyph, constant space:                 Artificial Fonts.
-* glyph, defining (char):                Using Symbols.
-* glyph, for line drawing:               Drawing Requests.
-* glyph, for margins (mc):               Miscellaneous.
-* glyph, italic correction (\/):         Ligatures and Kerning.
-* glyph, last, dimensions (.w, .cht, .cdp, .csk): Environments.
-* glyph, leader repetition (lc):         Leaders.
-* glyph, left italic correction (\,):    Ligatures and Kerning.
-* glyph, numbered (\N) <1>:              Using Symbols.
-* glyph, numbered (\N):                  Character Translations.
-* glyph, removing definition (rchar, rfschar): Using Symbols.
-* glyph, soft hyphen (hy):               Manipulating Hyphenation.
-* glyph, tab repetition (tc):            Tabs and Fields.
-* glyph, underscore (\[ru]):             Drawing Requests.
-* glyphs, available, list (`groff_char(7)' man page): Using Symbols.
-* glyphs, output, and input characters, compatibility with AT&T troff: Implementation Differences.
-* glyphs, overstriking (\o):             Page Motions.
-* glyphs, unnamed:                       Using Symbols.
-* glyphs, unnamed, accessing with \N:    Font File Format.
-* GNU-specific register (.g):            Built-in Registers.
-* gpic, invoking:                        Invoking gpic.
-* gpic, the program:                     gpic.
-* grap, the program:                     grap.
-* gray shading (\D'f ...'):              Drawing Requests.
-* grefer, invoking:                      Invoking grefer.
-* grefer, the program:                   grefer.
-* grn, the program:                      ggrn.
-* grodvi, invoking:                      Invoking grodvi.
-* grodvi, the program:                   grodvi.
-* groff - what is it?:                   What Is groff?.
-* groff capabilities:                    groff Capabilities.
-* groff glyph list (GGL):                Using Symbols.
-* groff invocation:                      Invoking groff.
-* groff, and pi request:                 I/O.
-* GROFF_BIN_PATH, environment variable:  Environment.
-* GROFF_COMMAND_PREFIX, environment variable: Environment.
-* GROFF_FONT_PATH, environment variable <1>: Font Directories.
-* GROFF_FONT_PATH, environment variable: Environment.
-* GROFF_TMAC_PATH, environment variable <1>: Macro Directories.
-* GROFF_TMAC_PATH, environment variable: Environment.
-* GROFF_TMPDIR, environment variable:    Environment.
-* GROFF_TYPESETTER, environment variable: Environment.
-* grohtml, invoking:                     Invoking grohtml.
-* grohtml, registers and strings:        grohtml specific registers and strings.
-* grohtml, the program <1>:              grohtml.
-* grohtml, the program:                  Groff Options.
-* grolbp, invoking:                      Invoking grolbp.
-* grolbp, the program:                   grolbp.
-* grolj4, invoking:                      Invoking grolj4.
-* grolj4, the program:                   grolj4.
-* grops, invoking:                       Invoking grops.
-* grops, the program:                    grops.
-* grotty, invoking:                      Invoking grotty.
-* grotty, the program:                   grotty.
-* gsoelim, invoking:                     Invoking gsoelim.
-* gsoelim, the program:                  gsoelim.
-* gtbl, invoking:                        Invoking gtbl.
-* gtbl, the program:                     gtbl.
-* gtroff, identification register (.g):  Built-in Registers.
-* gtroff, interactive use:               Debugging.
-* gtroff, output:                        gtroff Output.
-* gtroff, process ID register ($$):      Built-in Registers.
-* gtroff, reference:                     gtroff Reference.
-* gxditview, invoking:                   Invoking gxditview.
-* gxditview, the program:                gxditview.
-* hanging indentation [man]:             Man usage.
-* hcode request, and glyph definitions:  Using Symbols.
-* headers <1>:                           Page Location Traps.
-* headers:                               Page Layout.
-* headers [ms]:                          ms Headers and Footers.
-* height, font, changing (\H):           Artificial Fonts.
-* height, of last glyph (.cht):          Environments.
-* high-water mark register (.h):         Diversions.
-* history:                               History.
-* home directory:                        Macro Directories.
-* horizontal discardable space:          Manipulating Filling and Adjusting.
-* horizontal input line position register (hp): Page Motions.
-* horizontal input line position, saving (\k): Page Motions.
-* horizontal line, drawing (\l):         Drawing Requests.
-* horizontal motion (\h):                Page Motions.
-* horizontal output line position register (.k): Page Motions.
-* horizontal resolution:                 DESC File Format.
-* horizontal resolution register (.H):   Built-in Registers.
-* horizontal space (\h):                 Page Motions.
-* horizontal space, unformatting:        Strings.
-* hours, current time (hours):           Built-in Registers.
-* hpf request, and hyphenation language: Manipulating Hyphenation.
-* hw request, and hyphenation language:  Manipulating Hyphenation.
-* hy glyph, and cflags:                  Using Symbols.
-* hyphen, explicit (\%):                 Manipulating Hyphenation.
-* hyphenated lines, consecutive (hlm):   Manipulating Hyphenation.
-* hyphenating characters:                Using Symbols.
-* hyphenation:                           Hyphenation.
-* hyphenation character (\%):            Manipulating Hyphenation.
-* hyphenation code (hcode):              Manipulating Hyphenation.
-* hyphenation language register (.hla):  Manipulating Hyphenation.
-* hyphenation margin (hym):              Manipulating Hyphenation.
-* hyphenation margin register (.hym):    Manipulating Hyphenation.
-* hyphenation patterns (hpf):            Manipulating Hyphenation.
-* hyphenation restrictions register (.hy): Manipulating Hyphenation.
-* hyphenation space (hys):               Manipulating Hyphenation.
-* hyphenation space register (.hys):     Manipulating Hyphenation.
-* hyphenation, disabling (\%):           Manipulating Hyphenation.
-* hyphenation, manipulating:             Manipulating Hyphenation.
-* i unit:                                Measurements.
-* i/o:                                   I/O.
-* IBM cp1047 input encoding:             Input Encodings.
-* IBM cp1047 output encoding:            Groff Options.
-* identifiers:                           Identifiers.
-* identifiers, undefined:                Identifiers.
-* ie request, and warnings:              Warnings.
-* if request, and the ! operator:        Expressions.
-* if request, operators to use with:     Operators in Conditionals.
-* if-else:                               if-else.
-* imitating bold face (bd):              Artificial Fonts.
-* implementation differences:            Implementation Differences.
-* implicit breaks of lines:              Implicit Line Breaks.
-* implicit line breaks:                  Implicit Line Breaks.
-* in request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* in request, using + and -:             Expressions.
-* inch unit (i):                         Measurements.
-* including a file (so):                 I/O.
-* incompatibilities with AT&T troff:     Implementation Differences.
-* increment value without changing the register: Auto-increment.
-* increment, automatic:                  Auto-increment.
-* indentaion, resetting to default [man]: Man usage.
-* indentation (in):                      Line Layout.
-* index, in macro package:               Indices.
-* indirect assignments:                  Interpolating Registers.
-* input and output requests:             I/O.
-* input characters and output glyphs, compatibility with AT&T troff: Implementation Differences.
-* input characters, invalid:             Identifiers.
-* input conventions:                     Input Conventions.
-* input encoding, cp1047:                Input Encodings.
-* input encoding, EBCDIC:                Input Encodings.
-* input encoding, latin-1 (ISO 8859-1):  Input Encodings.
-* input encoding, latin-2 (ISO 8859-2):  Input Encodings.
-* input encoding, latin-9 (latin-9, ISO 8859-15): Input Encodings.
-* input file name, current, register (.F): Built-in Registers.
-* input level in delimited arguments:    Implementation Differences.
-* input line continuation (\):           Line Control.
-* input line number register (.c, c.):   Built-in Registers.
-* input line number, setting (lf):       Debugging.
-* input line position, horizontal, saving (\k): Page Motions.
-* input line trap, setting (it):         Input Line Traps.
-* input line traps:                      Input Line Traps.
-* input line traps and interrupted lines (itc): Input Line Traps.
-* input line, horizontal position, register (hp): Page Motions.
-* input stack, backtrace (backtrace):    Debugging.
-* input stack, setting limit:            Debugging.
-* input token:                           Gtroff Internals.
-* input, 8-bit:                          Font File Format.
-* input, standard, reading from (rd):    I/O.
-* inserting horizontal space (\h):       Page Motions.
-* installation:                          Installation.
-* interactive use of gtroff:             Debugging.
-* intermediate output:                   gtroff Output.
-* interpolating registers (\n):          Interpolating Registers.
-* interpolation of strings (\*):         Strings.
-* interrupted line:                      Line Control.
-* interrupted line register (.int):      Line Control.
-* interrupted lines and input line traps (itc): Input Line Traps.
-* introduction:                          Introduction.
-* invalid characters for trf request:    I/O.
-* invalid input characters:              Identifiers.
-* invocation examples:                   Invocation Examples.
-* invoking geqn:                         Invoking geqn.
-* invoking ggrn:                         Invoking ggrn.
-* invoking gpic:                         Invoking gpic.
-* invoking grefer:                       Invoking grefer.
-* invoking grodvi:                       Invoking grodvi.
-* invoking groff:                        Invoking groff.
-* invoking grohtml:                      Invoking grohtml.
-* invoking grolbp:                       Invoking grolbp.
-* invoking grolj4:                       Invoking grolj4.
-* invoking grops:                        Invoking grops.
-* invoking grotty:                       Invoking grotty.
-* invoking gsoelim:                      Invoking gsoelim.
-* invoking gtbl:                         Invoking gtbl.
-* invoking gxditview:                    Invoking gxditview.
-* ISO 8859-1 (latin-1), input encoding:  Input Encodings.
-* ISO 8859-1 (latin-1), output encoding: Groff Options.
-* ISO 8859-15 (latin-9, latin-0), input encoding: Input Encodings.
-* ISO 8859-2 (latin-2), input encoding:  Input Encodings.
-* italic correction (\/):                Ligatures and Kerning.
-* italic fonts [man]:                    Man font macros.
-* italic glyph, correction after roman glyph (\,): Ligatures and Kerning.
-* italic glyph, correction before roman glyph (\/): Ligatures and Kerning.
-* justifying text:                       Manipulating Filling and Adjusting.
-* justifying text (rj):                  Manipulating Filling and Adjusting.
-* keep:                                  Displays.
-* keep, floating:                        Displays.
-* keeps [ms]:                            ms Displays and Keeps.
-* kerning and ligatures:                 Ligatures and Kerning.
-* kerning enabled register (.kern):      Ligatures and Kerning.
-* kerning, activating (kern):            Ligatures and Kerning.
-* kerning, track:                        Ligatures and Kerning.
-* landscape page orientation:            Paper Size.
-* last glyph, dimensions (.w, .cht, .cdp, .csk): Environments.
-* last-requested point size registers (.psr, .sr): Fractional Type Sizes.
-* latin-1 (ISO 8859-1), input encoding:  Input Encodings.
-* latin-1 (ISO 8859-1), output encoding: Groff Options.
-* latin-2 (ISO 8859-2), input encoding:  Input Encodings.
-* latin-9 (latin-0, ISO 8859-15), input encoding: Input Encodings.
-* layout, line:                          Line Layout.
-* layout, page:                          Page Layout.
-* lc request, and glyph definitions:     Using Symbols.
-* leader character:                      Leaders.
-* leader character, and translations:    Character Translations.
-* leader character, non-interpreted (\a): Leaders.
-* leader repetition character (lc):      Leaders.
-* leaders:                               Leaders.
-* leading:                               Sizes.
-* leading spaces:                        Filling and Adjusting.
-* leading spaces with ds:                Strings.
-* left italic correction (\,):           Ligatures and Kerning.
-* left margin (po):                      Line Layout.
-* left margin, how to move [man]:        Man usage.
-* length of a string (length):           Strings.
-* length of line (ll):                   Line Layout.
-* length of page (pl):                   Page Layout.
-* length of previous line (.n):          Environments.
-* length of title line (lt):             Page Layout.
-* letters, form:                         I/O.
-* level of warnings (warn):              Debugging.
-* ligature:                              Using Symbols.
-* ligatures and kerning:                 Ligatures and Kerning.
-* ligatures enabled register (.lg):      Ligatures and Kerning.
-* ligatures, activating (lg):            Ligatures and Kerning.
-* limitations of \b escape:              Drawing Requests.
-* line break <1>:                        Manipulating Filling and Adjusting.
-* line break <2>:                        Implicit Line Breaks.
-* line break:                            Basics.
-* line break (br):                       Basics.
-* line breaks, with vertical space [man]: Man usage.
-* line breaks, without vertical space [man]: Man usage.
-* line control:                          Line Control.
-* line dimensions:                       Line Layout.
-* line drawing glyph:                    Drawing Requests.
-* line indentation (in):                 Line Layout.
-* line layout:                           Line Layout.
-* line length (ll):                      Line Layout.
-* line length register (.l):             Line Layout.
-* line length, previous (.n):            Environments.
-* line number, input, register (.c, c.): Built-in Registers.
-* line number, output, register (ln):    Built-in Registers.
-* line numbers, printing (nm):           Miscellaneous.
-* line space, extra post-vertical (\x):  Changing Type Sizes.
-* line space, extra pre-vertical (\x):   Changing Type Sizes.
-* line spacing register (.L):            Manipulating Spacing.
-* line spacing, post-vertical (pvs):     Changing Type Sizes.
-* line thickness (\D't ...'):            Drawing Requests.
-* line, blank:                           Implicit Line Breaks.
-* line, drawing (\D'l ...'):             Drawing Requests.
-* line, empty (sp):                      Basics.
-* line, horizontal, drawing (\l):        Drawing Requests.
-* line, implicit breaks:                 Implicit Line Breaks.
-* line, input, continuation (\):         Line Control.
-* line, input, horizontal position, register (hp): Page Motions.
-* line, input, horizontal position, saving (\k): Page Motions.
-* line, interrupted:                     Line Control.
-* line, output, continuation (\c):       Line Control.
-* line, output, horizontal position, register (.k): Page Motions.
-* line, vertical, drawing (\L):          Drawing Requests.
-* line-tabs mode:                        Tabs and Fields.
-* lines, blank, disabling:               Manipulating Spacing.
-* lines, centering (ce) <1>:             Manipulating Filling and Adjusting.
-* lines, centering (ce):                 Basics.
-* lines, consecutive hyphenated (hlm):   Manipulating Hyphenation.
-* lines, interrupted, and input line traps (itc): Input Line Traps.
-* list:                                  Displays.
-* list of available glyphs (`groff_char(7)' man page): Using Symbols.
-* ll request, using + and -:             Expressions.
-* location, vertical, page, marking (mk): Page Motions.
-* location, vertical, page, returning to marked (rt): Page Motions.
-* logical operators:                     Expressions.
-* long names:                            Implementation Differences.
-* loops and conditionals:                Conditionals and Loops.
-* lq glyph, and lq string [man]:         Predefined man strings.
-* ls request, alternative to (pvs):      Changing Type Sizes.
-* lt request, using + and -:             Expressions.
-* M unit:                                Measurements.
-* m unit:                                Measurements.
-* machine unit (u):                      Measurements.
-* macro arguments:                       Request and Macro Arguments.
-* macro basics:                          Basics.
-* macro directories:                     Macro Directories.
-* macro files, searching:                Macro Directories.
-* macro name register (\$0):             Parameters.
-* macro names, starting with [ or ], and refer: Identifiers.
-* macro packages <1>:                    Macro Packages.
-* macro packages:                        Macro Package Intro.
-* macro packages, structuring the source code: Requests.
-* macro, appending (am):                 Writing Macros.
-* macro, arguments (\$):                 Parameters.
-* macro, creating alias (als):           Strings.
-* macro, end-of-input (em):              End-of-input Traps.
-* macro, removing (rm):                  Strings.
-* macro, renaming (rn):                  Strings.
-* macros:                                Macros.
-* macros for manual pages [man]:         Man usage.
-* macros, recursive:                     while.
-* macros, searching:                     Macro Directories.
-* macros, shared name space with strings and diversions: Strings.
-* macros, tutorial for users:            Tutorial for Macro Users.
-* macros, writing:                       Writing Macros.
-* major quotes:                          Displays.
-* major version number register (.x):    Built-in Registers.
-* man macros:                            Man usage.
-* man macros, bold face:                 Man font macros.
-* man macros, custom headers and footers: Optional man extensions.
-* man macros, default indentation:       Miscellaneous man macros.
-* man macros, empty space before a paragraph: Miscellaneous man macros.
-* man macros, hanging indentation:       Man usage.
-* man macros, how to set fonts:          Man font macros.
-* man macros, italic fonts:              Man font macros.
-* man macros, line breaks with vertical space: Man usage.
-* man macros, line breaks without vertical space: Man usage.
-* man macros, moving left margin:        Man usage.
-* man macros, resetting default indentation: Man usage.
-* man macros, tab stops:                 Miscellaneous man macros.
-* man macros, Ultrix-specific:           Optional man extensions.
-* man pages:                             man.
-* manipulating filling and adjusting:    Manipulating Filling and Adjusting.
-* manipulating hyphenation:              Manipulating Hyphenation.
-* manipulating spacing:                  Manipulating Spacing.
-* manmacros, BSD compatibility:          Miscellaneous man macros.
-* manual pages:                          man.
-* margin for hyphenation (hym):          Manipulating Hyphenation.
-* margin glyph (mc):                     Miscellaneous.
-* margin, bottom:                        Page Layout.
-* margin, left (po):                     Line Layout.
-* margin, top:                           Page Layout.
-* mark, high-water, register (.h):       Diversions.
-* marking vertical page location (mk):   Page Motions.
-* maximum values of Roman numerals:      Assigning Formats.
-* mdoc macros:                           mdoc.
-* me macro package:                      me.
-* measurement unit:                      Measurements.
-* measurements:                          Measurements.
-* measurements, specifying safely:       Default Units.
-* minimum values of Roman numerals:      Assigning Formats.
-* minor version number register (.y):    Built-in Registers.
-* minutes, current time (minutes):       Built-in Registers.
-* mm macro package:                      mm.
-* mode for constant glyph space (cs):    Artificial Fonts.
-* mode, compatibility:                   Implementation Differences.
-* mode, copy-in:                         Copy-in Mode.
-* mode, copy-in, and write requests:     I/O.
-* mode, fill <1>:                        Warnings.
-* mode, fill <2>:                        Manipulating Filling and Adjusting.
-* mode, fill:                            Implicit Line Breaks.
-* mode, fill (fi):                       Manipulating Filling and Adjusting.
-* mode, fill, and \c:                    Line Control.
-* mode, line-tabs:                       Tabs and Fields.
-* mode, no-fill (nf):                    Manipulating Filling and Adjusting.
-* mode, no-fill, and \c:                 Line Control.
-* mode, no-space (ns):                   Manipulating Spacing.
-* mode, nroff:                           Troff and Nroff Mode.
-* mode, safer <1>:                       I/O.
-* mode, safer <2>:                       Macro Directories.
-* mode, safer:                           Groff Options.
-* mode, troff:                           Troff and Nroff Mode.
-* mode, unsafe <1>:                      I/O.
-* mode, unsafe <2>:                      Macro Directories.
-* mode, unsafe:                          Groff Options.
-* month of the year register (mo):       Built-in Registers.
-* motion operators:                      Expressions.
-* motion, horizontal (\h):               Page Motions.
-* motion, vertical (\v):                 Page Motions.
-* motions, page:                         Page Motions.
-* mounting font (fp):                    Font Positions.
-* ms macros:                             ms.
-* ms macros, accent marks:               ms Strings and Special Characters.
-* ms macros, body text:                  ms Body Text.
-* ms macros, cover page:                 ms Cover Page Macros.
-* ms macros, creating table of contents: ms TOC.
-* ms macros, differences from AT&T:      Differences from AT&T ms.
-* ms macros, displays:                   ms Displays and Keeps.
-* ms macros, document control registers: ms Document Control Registers.
-* ms macros, equations:                  ms Insertions.
-* ms macros, figures:                    ms Insertions.
-* ms macros, footers:                    ms Headers and Footers.
-* ms macros, footnotes:                  ms Footnotes.
-* ms macros, general structure:          General ms Structure.
-* ms macros, headers:                    ms Headers and Footers.
-* ms macros, headings:                   Headings in ms.
-* ms macros, highlighting:               Highlighting in ms.
-* ms macros, keeps:                      ms Displays and Keeps.
-* ms macros, lists:                      Lists in ms.
-* ms macros, margins:                    ms Margins.
-* ms macros, multiple columns:           ms Multiple Columns.
-* ms macros, nested lists:               Lists in ms.
-* ms macros, page layout:                ms Page Layout.
-* ms macros, paragraph handling:         Paragraphs in ms.
-* ms macros, references:                 ms Insertions.
-* ms macros, special characters:         ms Strings and Special Characters.
-* ms macros, strings:                    ms Strings and Special Characters.
-* ms macros, tables:                     ms Insertions.
-* multi-file documents:                  Debugging.
-* multi-line strings:                    Strings.
-* multi-page table, example markup [ms]: Example multi-page table.
-* multiple columns [ms]:                 ms Multiple Columns.
-* n unit:                                Measurements.
-* name space, common, of macros, diversions, and strings: Strings.
-* named character (\C):                  Using Symbols.
-* names, long:                           Implementation Differences.
-* ne request, and the .trunc register:   Page Location Traps.
-* ne request, comparison with sv:        Page Control.
-* negating register values:              Setting Registers.
-* nested assignments:                    Interpolating Registers.
-* nested diversions:                     Diversions.
-* nested lists [ms]:                     Lists in ms.
-* new page (bp) <1>:                     Page Control.
-* new page (bp):                         Basics.
-* newline character <1>:                 Escapes.
-* newline character:                     Identifiers.
-* newline character, and translations:   Character Translations.
-* newline character, in strings, escaping: Strings.
-* newline, final, stripping in diversions: Strings.
-* next file, processing (nx):            I/O.
-* next free font position register (.fp): Font Positions.
-* nf request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* nl register, and .d:                   Diversions.
-* nl register, difference to .h:         Diversions.
-* nm request, using + and -:             Expressions.
-* no-break control character ('):        Requests.
-* no-break control character, changing (c2): Character Translations.
-* no-fill mode (nf):                     Manipulating Filling and Adjusting.
-* no-fill mode, and \c:                  Line Control.
-* no-space mode (ns):                    Manipulating Spacing.
-* node, output:                          Gtroff Internals.
-* nr request, and warnings:              Warnings.
-* nr request, using + and -:             Expressions.
-* nroff mode:                            Troff and Nroff Mode.
-* nroff, the program:                    History.
-* number of arguments register (.$):     Parameters.
-* number register, creating alias (aln): Setting Registers.
-* number register, removing (rr):        Setting Registers.
-* number register, renaming (rnn):       Setting Registers.
-* number registers, dumping (pnr):       Debugging.
-* number, input line, setting (lf):      Debugging.
-* number, page (pn):                     Page Layout.
-* numbered glyph (\N) <1>:               Using Symbols.
-* numbered glyph (\N):                   Character Translations.
-* numbered list, example markup [ms]:    Lists in ms.
-* numbers, and delimiters:               Escapes.
-* numbers, line, printing (nm):          Miscellaneous.
-* numerals, Roman:                       Assigning Formats.
-* numeric expression, valid:             Expressions.
-* offset, page (po):                     Line Layout.
-* open request, and safer mode:          Groff Options.
-* opena request, and safer mode:         Groff Options.
-* opening file (open):                   I/O.
-* operator, scaling:                     Expressions.
-* operators, arithmetic:                 Expressions.
-* operators, as delimiters:              Escapes.
-* operators, comparison:                 Expressions.
-* operators, extremum (>?, <?):          Expressions.
-* operators, logical:                    Expressions.
-* operators, motion:                     Expressions.
-* operators, unary:                      Expressions.
-* options:                               Groff Options.
-* order of evaluation in expressions:    Expressions.
-* orientation, landscape:                Paper Size.
-* orphan lines, preventing with ne:      Page Control.
-* os request, and no-space mode:         Page Control.
-* output and input requests:             I/O.
-* output device name string register (.T) <1>: Built-in Registers.
-* output device name string register (.T): Groff Options.
-* output device usage number register (.T): Groff Options.
-* output devices <1>:                    Output Devices.
-* output devices:                        Output device intro.
-* output encoding, ASCII:                Groff Options.
-* output encoding, cp1047:               Groff Options.
-* output encoding, EBCDIC:               Groff Options.
-* output encoding, latin-1 (ISO 8859-1): Groff Options.
-* output encoding, utf-8:                Groff Options.
-* output glyphs, and input characters,compatibility with AT&T troff: Implementation Differences.
-* output line number register (ln):      Built-in Registers.
-* output line, continuation (\c):        Line Control.
-* output line, horizontal position, register (.k): Page Motions.
-* output node:                           Gtroff Internals.
-* output request, and \!:                Diversions.
-* output, flush (fl):                    Debugging.
-* output, gtroff:                        gtroff Output.
-* output, intermediate:                  gtroff Output.
-* output, suppressing (\O):              Suppressing output.
-* output, transparent (\!, \?):          Diversions.
-* output, transparent (cf, trf):         I/O.
-* output, transparent, incompatibilities with AT&T troff: Implementation Differences.
-* output, troff:                         gtroff Output.
-* overlapping characters:                Using Symbols.
-* overstriking glyphs (\o):              Page Motions.
-* P unit:                                Measurements.
-* p unit:                                Measurements.
-* packages, macros:                      Macro Packages.
-* padding character, for fields (fc):    Fields.
-* page break, conditional (ne):          Page Control.
-* page control:                          Page Control.
-* page ejecting register (.pe):          Page Location Traps.
-* page footers:                          Page Location Traps.
-* page headers:                          Page Location Traps.
-* page layout:                           Page Layout.
-* page layout [ms]:                      ms Page Layout.
-* page length (pl):                      Page Layout.
-* page length register (.p):             Page Layout.
-* page location traps:                   Page Location Traps.
-* page location, vertical, marking (mk): Page Motions.
-* page location, vertical, returning to marked (rt): Page Motions.
-* page motions:                          Page Motions.
-* page number (pn):                      Page Layout.
-* page number character (%):             Page Layout.
-* page number character, changing (pc):  Page Layout.
-* page number register (%):              Page Layout.
-* page offset (po):                      Line Layout.
-* page orientation, landscape:           Paper Size.
-* page, new (bp):                        Page Control.
-* paper formats:                         Paper Formats.
-* paper size:                            Paper Size.
-* paragraphs:                            Paragraphs.
-* parameters:                            Parameters.
-* parentheses:                           Expressions.
-* path, for font files:                  Font Directories.
-* path, for tmac files:                  Macro Directories.
-* patterns for hyphenation (hpf):        Manipulating Hyphenation.
-* pi request, and groff:                 I/O.
-* pi request, and safer mode:            Groff Options.
-* pic, the program:                      gpic.
-* pica unit (P):                         Measurements.
-* pile, glyph (\b):                      Drawing Requests.
-* pl request, using + and -:             Expressions.
-* planting a trap:                       Traps.
-* platform-specific directory:           Macro Directories.
-* pn request, using + and -:             Expressions.
-* po request, using + and -:             Expressions.
-* point size registers (.s, .ps):        Changing Type Sizes.
-* point size registers, last-requested (.psr, .sr): Fractional Type Sizes.
-* point sizes, changing (ps, \s):        Changing Type Sizes.
-* point sizes, fractional <1>:           Implementation Differences.
-* point sizes, fractional:               Fractional Type Sizes.
-* point unit (p):                        Measurements.
-* polygon, drawing (\D'p ...'):          Drawing Requests.
-* polygon, solid, drawing (\D'P ...'):   Drawing Requests.
-* position of lowest text line (.h):     Diversions.
-* position, absolute, operator (|):      Expressions.
-* position, horizontal input line, saving (\k): Page Motions.
-* position, horizontal, in input line, register (hp): Page Motions.
-* position, horizontal, in output line, register (.k): Page Motions.
-* position, vertical, in diversion, register (.d): Diversions.
-* positions, font:                       Font Positions.
-* post-vertical line spacing:            Changing Type Sizes.
-* post-vertical line spacing register (.pvs): Changing Type Sizes.
-* post-vertical line spacing, changing (pvs): Changing Type Sizes.
-* postprocessor access:                  Postprocessor Access.
-* postprocessors:                        Output device intro.
-* PostScript fonts:                      Font Families.
-* PostScript, bounding box:              Miscellaneous.
-* PostScript, embedding:                 Embedding PostScript.
-* prefix, for commands:                  Environment.
-* preprocessor, calling convention:      Preprocessors in man pages.
-* preprocessors <1>:                     Preprocessors.
-* preprocessors:                         Preprocessor Intro.
-* previous font (ft, \f[], \fP):         Changing Fonts.
-* previous line length (.n):             Environments.
-* print current page register (.P):      Groff Options.
-* printing backslash (\\, \e, \E, \[rs]) <1>: Implementation Differences.
-* printing backslash (\\, \e, \E, \[rs]): Escapes.
-* printing line numbers (nm):            Miscellaneous.
-* printing to stderr (tm, tm1, tmc):     Debugging.
-* printing, zero-width (\z, \Z):         Page Motions.
-* process ID of gtroff register ($$):    Built-in Registers.
-* processing next file (nx):             I/O.
-* properties of characters (cflags):     Using Symbols.
-* properties of glyphs (cflags):         Using Symbols.
-* ps request, and constant glyph space mode: Artificial Fonts.
-* ps request, incompatibilities with AT&T troff: Implementation Differences.
-* ps request, using + and -:             Expressions.
-* ps request, with fractional type sizes: Fractional Type Sizes.
-* pso request, and safer mode:           Groff Options.
-* pvs request, using + and -:            Expressions.
-* quotes, major:                         Displays.
-* quotes, trailing:                      Strings.
-* radicalex glyph, and cflags:           Using Symbols.
-* ragged-left:                           Manipulating Filling and Adjusting.
-* ragged-right:                          Manipulating Filling and Adjusting.
-* rc request, and glyph definitions:     Using Symbols.
-* read-only register, changing format:   Assigning Formats.
-* reading from standard input (rd):      I/O.
-* recursive macros:                      while.
-* refer, and macro names starting with [ or ]: Identifiers.
-* refer, the program:                    grefer.
-* reference, gtroff:                     gtroff Reference.
-* references [ms]:                       ms Insertions.
-* register, creating alias (aln):        Setting Registers.
-* register, format (\g):                 Assigning Formats.
-* register, removing (rr):               Setting Registers.
-* register, renaming (rnn):              Setting Registers.
-* registers:                             Registers.
-* registers specific to grohtml:         grohtml specific registers and strings.
-* registers, built-in:                   Built-in Registers.
-* registers, interpolating (\n):         Interpolating Registers.
-* registers, setting (nr, \R):           Setting Registers.
-* removing diversion (rm):               Strings.
-* removing glyph definition (rchar, rfschar): Using Symbols.
-* removing macro (rm):                   Strings.
-* removing number register (rr):         Setting Registers.
-* removing request (rm):                 Strings.
-* removing string (rm):                  Strings.
-* renaming diversion (rn):               Strings.
-* renaming macro (rn):                   Strings.
-* renaming number register (rnn):        Setting Registers.
-* renaming request (rn):                 Strings.
-* renaming string (rn):                  Strings.
-* request arguments:                     Request and Macro Arguments.
-* request, removing (rm):                Strings.
-* request, renaming (rn):                Strings.
-* request, undefined:                    Comments.
-* requests:                              Requests.
-* requests for drawing:                  Drawing Requests.
-* requests for input and output:         I/O.
-* resolution, device:                    DESC File Format.
-* resolution, horizontal:                DESC File Format.
-* resolution, horizontal, register (.H): Built-in Registers.
-* resolution, vertical:                  DESC File Format.
-* resolution, vertical, register (.V):   Built-in Registers.
-* returning to marked vertical page location (rt): Page Motions.
-* revision number register (.Y):         Built-in Registers.
-* rf, the program:                       History.
-* right-justifying (rj):                 Manipulating Filling and Adjusting.
-* rj request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* rn glyph, and cflags:                  Using Symbols.
-* roff, the program:                     History.
-* roman glyph, correction after italic glyph (\/): Ligatures and Kerning.
-* roman glyph, correction before italic glyph (\,): Ligatures and Kerning.
-* Roman numerals:                        Assigning Formats.
-* Roman numerals, maximum and minimum:   Assigning Formats.
-* rq glyph, and rq string [man]:         Predefined man strings.
-* rq glyph, at end of sentence <1>:      Using Symbols.
-* rq glyph, at end of sentence:          Sentences.
-* rt request, using + and -:             Expressions.
-* ru glyph, and cflags:                  Using Symbols.
-* runoff, the program:                   History.
-* s unit <1>:                            Fractional Type Sizes.
-* s unit:                                Measurements.
-* safer mode <1>:                        I/O.
-* safer mode <2>:                        Macro Directories.
-* safer mode:                            Groff Options.
-* saving horizontal input line position (\k): Page Motions.
-* scaling operator:                      Expressions.
-* searching fonts:                       Font Directories.
-* searching macro files:                 Macro Directories.
-* searching macros:                      Macro Directories.
-* seconds, current time (seconds):       Built-in Registers.
-* sentence space:                        Sentences.
-* sentence space size register (.sss):   Manipulating Filling and Adjusting.
-* sentences:                             Sentences.
-* setting diversion trap (dt):           Diversion Traps.
-* setting end-of-input trap (em):        End-of-input Traps.
-* setting input line number (lf):        Debugging.
-* setting input line trap (it):          Input Line Traps.
-* setting registers (nr, \R):            Setting Registers.
-* shading filled objects (\D'f ...'):    Drawing Requests.
-* shc request, and translations:         Character Translations.
-* site-specific directory <1>:           Font Directories.
-* site-specific directory:               Macro Directories.
-* size of sentence space register (.sss): Manipulating Filling and Adjusting.
-* size of type:                          Sizes.
-* size of word space register (.ss):     Manipulating Filling and Adjusting.
-* size, paper:                           Paper Size.
-* sizes:                                 Sizes.
-* sizes, fractional <1>:                 Implementation Differences.
-* sizes, fractional:                     Fractional Type Sizes.
-* skew, of last glyph (.csk):            Environments.
-* slant, font, changing (\S):            Artificial Fonts.
-* soelim, the program:                   gsoelim.
-* soft hyphen character, setting (shc):  Manipulating Hyphenation.
-* soft hyphen glyph (hy):                Manipulating Hyphenation.
-* solid circle, drawing (\D'C ...'):     Drawing Requests.
-* solid ellipse, drawing (\D'E ...'):    Drawing Requests.
-* solid polygon, drawing (\D'P ...'):    Drawing Requests.
-* sp request, and no-space mode:         Manipulating Spacing.
-* sp request, and traps:                 Manipulating Spacing.
-* sp request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* space between sentences:               Sentences.
-* space between sentences register (.sss): Manipulating Filling and Adjusting.
-* space between words register (.ss):    Manipulating Filling and Adjusting.
-* space character:                       Escapes.
-* space character, zero width (\&) <1>:  Drawing Requests.
-* space character, zero width (\&) <2>:  Ligatures and Kerning.
-* space character, zero width (\&):      Requests.
-* space characters, in expressions:      Expressions.
-* space, discardable, horizontal:        Manipulating Filling and Adjusting.
-* space, discarded, in traps:            Manipulating Spacing.
-* space, horizontal (\h):                Page Motions.
-* space, horizontal, unformatting:       Strings.
-* space, unbreakable:                    Page Motions.
-* space, vertical, unit (v):             Measurements.
-* space, width of a digit (\0):          Page Motions.
-* spaces with ds:                        Strings.
-* spaces, in a macro argument:           Request and Macro Arguments.
-* spaces, leading and trailing:          Filling and Adjusting.
-* spacing:                               Basics.
-* spacing, manipulating:                 Manipulating Spacing.
-* spacing, vertical:                     Sizes.
-* special characters <1>:                Special Characters.
-* special characters:                    Character Translations.
-* special characters [ms]:               ms Strings and Special Characters.
-* special fonts <1>:                     Font File Format.
-* special fonts <2>:                     Special Fonts.
-* special fonts:                         Using Symbols.
-* special fonts, emboldening:            Artificial Fonts.
-* special request, and font translations: Changing Fonts.
-* special request, and glyph search order: Using Symbols.
-* spline, drawing (\D'~ ...'):           Drawing Requests.
-* springing a trap:                      Traps.
-* sqrtex glyph, and cflags:              Using Symbols.
-* stacking glyphs (\b):                  Drawing Requests.
-* standard input, reading from (rd):     I/O.
-* stderr, printing to (tm, tm1, tmc):    Debugging.
-* stops, tabulator:                      Tab Stops.
-* string arguments:                      Strings.
-* string expansion (\*):                 Strings.
-* string interpolation (\*):             Strings.
-* string, appending (as):                Strings.
-* string, creating alias (als):          Strings.
-* string, length of (length):            Strings.
-* string, removing (rm):                 Strings.
-* string, renaming (rn):                 Strings.
-* strings:                               Strings.
-* strings [ms]:                          ms Strings and Special Characters.
-* strings specific to grohtml:           grohtml specific registers and strings.
-* strings, multi-line:                   Strings.
-* strings, shared name space with macros and diversions: Strings.
-* stripping final newline in diversions: Strings.
-* structuring source code of documents or macro packages: Requests.
-* sty request, and changing fonts:       Changing Fonts.
-* sty request, and font positions:       Font Positions.
-* sty request, and font translations:    Changing Fonts.
-* styles, font:                          Font Families.
-* substring (substring):                 Strings.
-* suppressing output (\O):               Suppressing output.
-* sv request, and no-space mode:         Page Control.
-* switching environments (ev):           Environments.
-* sy request, and safer mode:            Groff Options.
-* symbol:                                Using Symbols.
-* symbol table, dumping (pm):            Debugging.
-* symbol, defining (char):               Using Symbols.
-* symbols, using:                        Using Symbols.
-* system() return value register (systat): I/O.
-* tab character <1>:                     Escapes.
-* tab character:                         Tab Stops.
-* tab character, and translations:       Character Translations.
-* tab character, non-interpreted (\t):   Tabs and Fields.
-* tab repetition character (tc):         Tabs and Fields.
-* tab settings register (.tabs):         Tabs and Fields.
-* tab stops:                             Tab Stops.
-* tab stops [man]:                       Miscellaneous man macros.
-* tab stops, for TTY output devices:     Tabs and Fields.
-* tab, line-tabs mode:                   Tabs and Fields.
-* table of contents <1>:                 Leaders.
-* table of contents:                     Table of Contents.
-* table of contents, creating [ms]:      ms TOC.
-* tables [ms]:                           ms Insertions.
-* tabs, and fields:                      Tabs and Fields.
-* tabs, before comments:                 Comments.
-* tbl, the program:                      gtbl.
-* text line, position of lowest (.h):    Diversions.
-* text, gtroff processing:               Text.
-* text, justifying:                      Manipulating Filling and Adjusting.
-* text, justifying (rj):                 Manipulating Filling and Adjusting.
-* thickness of lines (\D't ...'):        Drawing Requests.
-* three-part title (tl):                 Page Layout.
-* ti request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* ti request, using + and -:             Expressions.
-* time, current:                         I/O.
-* time, current, hours (hours):          Built-in Registers.
-* time, current, minutes (minutes):      Built-in Registers.
-* time, current, seconds (seconds):      Built-in Registers.
-* title line (tl):                       Page Layout.
-* title line length register (.lt):      Page Layout.
-* title line, length (lt):               Page Layout.
-* title page, example markup:            ms Cover Page Macros.
-* titles:                                Page Layout.
-* tkf request, and font styles:          Font Families.
-* tkf request, and font translations:    Changing Fonts.
-* tkf request, with fractional type sizes: Fractional Type Sizes.
-* tl request, and mc:                    Miscellaneous.
-* tmac, directory:                       Macro Directories.
-* tmac, path:                            Macro Directories.
-* TMPDIR, environment variable:          Environment.
-* token, input:                          Gtroff Internals.
-* top margin:                            Page Layout.
-* top-level diversion:                   Diversions.
-* top-level diversion, and \!:           Diversions.
-* top-level diversion, and \?:           Diversions.
-* top-level diversion, and bp:           Page Control.
-* tr request, and glyph definitions:     Using Symbols.
-* tr request, and soft hyphen character: Manipulating Hyphenation.
-* tr request, incompatibilities with AT&T troff: Implementation Differences.
-* track kerning:                         Ligatures and Kerning.
-* track kerning, activating (tkf):       Ligatures and Kerning.
-* trailing quotes:                       Strings.
-* trailing spaces:                       Filling and Adjusting.
-* translations of characters:            Character Translations.
-* transparent characters <1>:            Using Symbols.
-* transparent characters:                Sentences.
-* transparent output (\!, \?):           Diversions.
-* transparent output (cf, trf):          I/O.
-* transparent output, incompatibilities with AT&T troff: Implementation Differences.
-* trap, changing location (ch):          Page Location Traps.
-* trap, distance, register (.t):         Page Location Traps.
-* trap, diversion, setting (dt):         Diversion Traps.
-* trap, end-of-input, setting (em):      End-of-input Traps.
-* trap, input line, setting (it):        Input Line Traps.
-* trap, planting:                        Traps.
-* trap, springing:                       Traps.
-* traps:                                 Traps.
-* traps, and discarded space:            Manipulating Spacing.
-* traps, and diversions:                 Page Location Traps.
-* traps, blank line:                     Blank Line Traps.
-* traps, diversion:                      Diversion Traps.
-* traps, dumping (ptr):                  Debugging.
-* traps, end-of-input:                   End-of-input Traps.
-* traps, input line:                     Input Line Traps.
-* traps, input line, and interrupted lines (itc): Input Line Traps.
-* traps, page location:                  Page Location Traps.
-* traps, sprung by bp request (.pe):     Page Location Traps.
-* trf request, and invalid characters:   I/O.
-* trf request, causing implicit linebreak: Manipulating Filling and Adjusting.
-* trin request, and asciify:             Diversions.
-* troff mode:                            Troff and Nroff Mode.
-* troff output:                          gtroff Output.
-* truncated vertical space register (.trunc): Page Location Traps.
-* tutorial for macro users:              Tutorial for Macro Users.
-* type size:                             Sizes.
-* type size registers (.s, .ps):         Changing Type Sizes.
-* type sizes, changing (ps, \s):         Changing Type Sizes.
-* type sizes, fractional <1>:            Implementation Differences.
-* type sizes, fractional:                Fractional Type Sizes.
-* u unit:                                Measurements.
-* uf request, and font styles:           Font Families.
-* ul glyph, and cflags:                  Using Symbols.
-* ul request, and font translations:     Changing Fonts.
-* Ultrix-specific man macros:            Optional man extensions.
-* unary operators:                       Expressions.
-* unbreakable space:                     Page Motions.
-* undefined identifiers:                 Identifiers.
-* undefined request:                     Comments.
-* underline font (uf):                   Artificial Fonts.
-* underlining (ul):                      Artificial Fonts.
-* underlining, continuous (cu):          Artificial Fonts.
-* underscore glyph (\[ru]):              Drawing Requests.
-* unformatting diversions (asciify):     Diversions.
-* unformatting horizontal space:         Strings.
-* Unicode <1>:                           Using Symbols.
-* Unicode:                               Identifiers.
-* unit, c:                               Measurements.
-* unit, f:                               Measurements.
-* unit, f, and colors:                   Colors.
-* unit, i:                               Measurements.
-* unit, M:                               Measurements.
-* unit, m:                               Measurements.
-* unit, n:                               Measurements.
-* unit, P:                               Measurements.
-* unit, p:                               Measurements.
-* unit, s <1>:                           Fractional Type Sizes.
-* unit, s:                               Measurements.
-* unit, u:                               Measurements.
-* unit, v:                               Measurements.
-* unit, z <1>:                           Fractional Type Sizes.
-* unit, z:                               Measurements.
-* units of measurement:                  Measurements.
-* units, default:                        Default Units.
-* unnamed fill colors (\D'F...'):        Drawing Requests.
-* unnamed glyphs:                        Using Symbols.
-* unnamed glyphs, accessing with \N:     Font File Format.
-* unsafe mode <1>:                       I/O.
-* unsafe mode <2>:                       Macro Directories.
-* unsafe mode:                           Groff Options.
-* user's macro tutorial:                 Tutorial for Macro Users.
-* user's tutorial for macros:            Tutorial for Macro Users.
-* using symbols:                         Using Symbols.
-* utf-8, output encoding:                Groff Options.
-* v unit:                                Measurements.
-* valid numeric expression:              Expressions.
-* value, incrementing without changing the register: Auto-increment.
-* variables in environment:              Environment.
-* version number, major, register (.x):  Built-in Registers.
-* version number, minor, register (.y):  Built-in Registers.
-* vertical line drawing (\L):            Drawing Requests.
-* vertical line spacing register (.v):   Changing Type Sizes.
-* vertical line spacing, changing (vs):  Changing Type Sizes.
-* vertical line spacing, effective value: Changing Type Sizes.
-* vertical motion (\v):                  Page Motions.
-* vertical page location, marking (mk):  Page Motions.
-* vertical page location, returning to marked (rt): Page Motions.
-* vertical position in diversion register (.d): Diversions.
-* vertical position trap enable register (.vpt): Page Location Traps.
-* vertical position traps, enabling (vpt): Page Location Traps.
-* vertical resolution:                   DESC File Format.
-* vertical resolution register (.V):     Built-in Registers.
-* vertical space unit (v):               Measurements.
-* vertical spacing:                      Sizes.
-* warnings <1>:                          Warnings.
-* warnings:                              Debugging.
-* warnings, level (warn):                Debugging.
-* what is groff?:                        What Is groff?.
-* while:                                 while.
-* while request, and the ! operator:     Expressions.
-* while request, confusing with br:      while.
-* while request, operators to use with:  Operators in Conditionals.
-* whitespace characters:                 Identifiers.
-* width escape (\w):                     Page Motions.
-* width, of last glyph (.w):             Environments.
-* word space size register (.ss):        Manipulating Filling and Adjusting.
-* writing macros:                        Writing Macros.
-* writing to file (write):               I/O.
-* year, current, register (year, yr):    Built-in Registers.
-* z unit <1>:                            Fractional Type Sizes.
-* z unit:                                Measurements.
-* zero width space character (\&) <1>:   Drawing Requests.
-* zero width space character (\&) <2>:   Ligatures and Kerning.
-* zero width space character (\&):       Requests.
-* zero-width printing (\z, \Z):          Page Motions.
-* |, and page motion:                    Expressions.
-
-
diff --git a/contrib/groff/doc/groff-4 b/contrib/groff/doc/groff-4
deleted file mode 100644
index 7591d12..0000000
--- a/contrib/groff/doc/groff-4
+++ /dev/null
@@ -1,1406 +0,0 @@
-This is groff, produced by makeinfo version 4.3d from ./groff.texinfo.
-
-This manual documents GNU `troff' version 1.19.
-
-   Copyright (C) 1994-2000, 2001, 2002, 2003 Free Software Foundation,
-Inc.
-
-     Permission is granted to copy, distribute and/or modify this
-     document under the terms of the GNU Free Documentation License,
-     Version 1.1 or any later version published by the Free Software
-     Foundation; with no Invariant Sections, with the Front-Cover texts
-     being `A GNU Manual," and with the Back-Cover Texts as in (a)
-     below.  A copy of the license is included in the section entitled
-     `GNU Free Documentation License."
-
-     (a) The FSF's Back-Cover Text is: `You have freedom to copy and
-     modify this GNU Manual, like GNU software.  Copies published by
-     the Free Software Foundation raise funds for GNU development."
-   
-INFO-DIR-SECTION Typesetting
-START-INFO-DIR-ENTRY
-* Groff: (groff).               The GNU troff document formatting system.
-END-INFO-DIR-ENTRY
-
-
-File: groff,  Node: Manipulating Filling and Adjusting,  Next: Manipulating Hyphenation,  Prev: Registers,  Up: gtroff Reference
-
-Manipulating Filling and Adjusting
-==================================
-
-   Various ways of causing "breaks" were given in *Note Implicit Line
-Breaks::.  The `br' request likewise causes a break.  Several other
-requests also cause breaks, but implicitly.  These are `bp', `ce',
-`cf', `fi', `fl', `in', `nf', `rj', `sp', `ti', and `trf'.
-
- - Request: .br
-     Break the current line, i.e., the input collected so far is emitted
-     without adjustment.
-
-     If the no-break control character is used, `gtroff' suppresses the
-     break:
-
-
-          a
-          'br
-          b
-              => a b
-
-
-   Initially, `gtroff' fills and adjusts text to both margins.  Filling
-can be disabled via the `nf' request and re-enabled with the `fi'
-request.
-
- - Request: .fi
- - Register: \n[.u]
-     Activate fill mode (which is the default).  This request implicitly
-     enables adjusting; it also inserts a break in the text currently
-     being filled.  The read-only number register `.u' is set to 1.
-
-     The fill mode status is associated with the current environment
-     (*note Environments::).
-
-     See *Note Line Control::, for interaction with the `\c' escape.
-
- - Request: .nf
-     Activate no-fill mode.  Input lines are output as-is, retaining
-     line breaks and ignoring the current line length.  This command
-     implicitly disables adjusting; it also causes a break.  The number
-     register `.u' is set to 0.
-
-     The fill mode status is associated with the current environment
-     (*note Environments::).
-
-     See *Note Line Control::, for interaction with the `\c' escape.
-
- - Request: .ad [mode]
- - Register: \n[.j]
-     Set adjusting mode.
-
-     Activation and deactivation of adjusting is done implicitly with
-     calls to the `fi' or `nf' requests.
-
-     MODE can have one of the following values:
-
-    `l'
-          Adjust text to the left margin.  This produces what is
-          traditionally called ragged-right text.
-
-    `r'
-          Adjust text to the right margin, producing ragged-left text.
-
-    `c'
-          Center filled text.  This is different to the `ce' request
-          which only centers text without filling.
-
-    `b'
-    `n'
-          Justify to both margins.  This is the default used by
-          `gtroff'.
-
-     Finally, MODE can be the numeric argument returned by the `.j'
-     register.
-
-     With no argument, `gtroff' adjusts lines in the same way it did
-     before adjusting was deactivated (with a call to `na', for
-     example).
-
-
-          text
-          .ad r
-          .nr ad \n[.j]
-          text
-          .ad c
-          text
-          .na
-          text
-          .ad         \" back to centering
-          text
-          .ad \n[ad]  \" back to right justifying
-
-     The current adjustment mode is available in the read-only number
-     register `.j'; it can be stored and subsequently used to set
-     adjustment.
-
-     The adjustment mode status is associated with the current
-     environment (*note Environments::).
-
- - Request: .na
-     Disable adjusting.  This request won't change the current
-     adjustment mode: A subsequent call to `ad' uses the previous
-     adjustment setting.
-
-     The adjustment mode status is associated with the current
-     environment (*note Environments::).
-
- - Request: .brp
- - Escape: \p
-     Adjust the current line and cause a break.
-
-     In most cases this produces very ugly results since `gtroff'
-     doesn't have a sophisticated paragraph building algorithm (as TeX
-     have, for example); instead, `gtroff' fills and adjusts a paragraph
-     line by line:
-
-
-            This is an uninteresting sentence.
-            This is an uninteresting sentence.\p
-            This is an uninteresting sentence.
-
-     is formatted as
-
-
-            This is  an uninteresting  sentence.   This  is an
-            uninteresting                            sentence.
-            This is an uninteresting sentence.
-
-
- - Request: .ss word_space_size [sentence_space_size]
- - Register: \n[.ss]
- - Register: \n[.sss]
-     Change the size of a space between words.  It takes its units as
-     one twelfth of the space width parameter for the current font.
-     Initially both the WORD_SPACE_SIZE and SENTENCE_SPACE_SIZE are 12.
-     In fill mode, the values specify the minimum distance.
-
-     If two arguments are given to the `ss' request, the second
-     argument sets the sentence space size.  If the second argument is
-     not given, sentence space size is set to WORD_SPACE_SIZE.  The
-     sentence space size is used in two circumstances: If the end of a
-     sentence occurs at the end of a line in fill mode, then both an
-     inter-word space and a sentence space are added; if two spaces
-     follow the end of a sentence in the middle of a line, then the
-     second space is a sentence space.  If a second argument is never
-     given to the `ss' request, the behaviour of UNIX `troff' is the
-     same as that exhibited by GNU `troff'.  In GNU `troff', as in UNIX
-     `troff', a sentence should always be followed by either a newline
-     or two spaces.
-
-     The read-only number registers `.ss' and `.sss' hold the values of
-     the parameters set by the first and second arguments of the `ss'
-     request.
-
-     The word space and sentence space values are associated with the
-     current environment (*note Environments::).
-
-     Contrary to AT&T `troff', this request is _not_ ignored if a TTY
-     output device is used; the given values are then rounded down to a
-     multiple of 12 (*note Implementation Differences::).
-
-     The request is ignored if there is no parameter.
-
-     Another useful application of the `ss' request is to insert
-     discardable horizontal space, i.e., space which is discarded at a
-     line break.  For example, paragraph-style footnotes could be
-     separated this way:
-
-
-          .ll 4.5i
-          1.\ This is the first footnote.\c
-          .ss 48
-          .nop
-          .ss 12
-          2.\ This is the second footnote.
-
-     The result:
-
-
-          1. This is the first footnote.        2. This
-          is the second footnote.
-
-     Note that the `\h' escape produces unbreakable space.
-
- - Request: .ce [nnn]
- - Register: \n[.ce]
-     Center text.  While the `.ad c' request also centers text, it
-     fills the text as well.  `ce' does not fill the text it affects.
-     This request causes a break.  The number of lines still to be
-     centered is associated with the current environment (*note
-     Environments::).
-
-     The following example demonstrates the differences.  Here the
-     input:
-
-
-          .ll 4i
-          .ce 1000
-          This is a small text fragment which shows the differences
-          between the `.ce' and the `.ad c' request.
-          .ce 0
-          
-          .ad c
-          This is a small text fragment which shows the differences
-          between the `.ce' and the `.ad c' request.
-
-     And here the result:
-
-
-            This is a small text fragment which
-                   shows the differences
-          between the `.ce' and the `.ad c' request.
-          
-            This is a small text fragment which
-          shows the differences between the `.ce'
-                  and the `.ad c' request.
-
-     With no arguments, `ce' centers the next line of text.  NNN
-     specifies the number of lines to be centered.  If the argument is
-     zero or negative, centering is disabled.
-
-     The basic length for centering text is the line length (as set
-     with the `ll' request) minus the indentation (as set with the `in'
-     request).  Temporary indentation is ignored.
-
-     As can be seen in the previous example, it is a common idiom to
-     turn on centering for a large number of lines, and to turn off
-     centering after text to be centered.  This is useful for any
-     request which takes a number of lines as an argument.
-
-     The `.ce' read-only number register contains the number of lines
-     remaining to be centered, as set by the `ce' request.
-
- - Request: .rj [nnn]
- - Register: \n[.rj]
-     Justify unfilled text to the right margin.  Arguments are
-     identical to the `ce' request.  The `.rj' read-only number
-     register is the number of lines to be right-justified as set by
-     the `rj' request.  This request causes a break.  The number of
-     lines still to be right-justified is associated with the current
-     environment (*note Environments::).
-
-
-File: groff,  Node: Manipulating Hyphenation,  Next: Manipulating Spacing,  Prev: Manipulating Filling and Adjusting,  Up: gtroff Reference
-
-Manipulating Hyphenation
-========================
-
-   As discussed in *Note Hyphenation::, `gtroff' hyphenates words.
-There are a number of ways to influence hyphenation.
-
- - Request: .hy [mode]
- - Register: \n[.hy]
-     Enable hyphenation.  The request has an optional numeric argument,
-     MODE, to restrict hyphenation if necessary:
-
-    `1'
-          The default argument if MODE is omitted.  Hyphenate without
-          restrictions.  This is also the start-up value of `gtroff'.
-
-    `2'
-          Do not hyphenate the last word on a page or column.
-
-    `4'
-          Do not hyphenate the last two characters of a word.
-
-    `8'
-          Do not hyphenate the first two characters of a word.
-
-     Values in the previous table are additive.  For example, the
-     value 12 causes `gtroff' to neither hyphenate the last two nor the
-     first two characters of a word.
-
-     The current hyphenation restrictions can be found in the read-only
-     number register `.hy'.
-
-     The hyphenation mode is associated with the current environment
-     (*note Environments::).
-
- - Request: .nh
-     Disable hyphenation (i.e., set the hyphenation mode to zero).  Note
-     that the hyphenation mode of the last call to `hy' is not
-     remembered.
-
-     The hyphenation mode is associated with the current environment
-     (*note Environments::).
-
- - Request: .hlm [nnn]
- - Register: \n[.hlm]
- - Register: \n[.hlc]
-     Set the maximum number of consecutive hyphenated lines to NNN.  If
-     this number is negative, there is no maximum.  The default value
-     is -1 if NNN is omitted.  This value is associated with the
-     current environment (*note Environments::).  Only lines output
-     from a given environment count towards the maximum associated with
-     that environment.  Hyphens resulting from `\%' are counted;
-     explicit hyphens are not.
-
-     The current setting of `hlm' is available in the `.hlm' read-only
-     number register.  Also the number of immediately preceding
-     consecutive hyphenated lines are available in the read-only number
-     register `.hlc'.
-
- - Request: .hw word1 word2 ...
-     Define how WORD1, WORD2, etc. are to be hyphenated.  The words
-     must be given with hyphens at the hyphenation points.  For example:
-
-
-          .hw in-sa-lub-rious
-
-     Besides the space character, any character whose hyphenation code
-     value is zero can be used to separate the arguments of `hw' (see
-     the documentation for the `hcode' request below for more
-     information).  In addition, this request can be used more than
-     once.
-
-     Hyphenation exceptions specified with the `hw' request are
-     associated with the current hyphenation language; it causes an
-     error if there is no current hyphenation language.
-
-     This request is ignored if there is no parameter.
-
-     In old versions of `troff' there was a limited amount of space to
-     store such information; fortunately, with `gtroff', this is no
-     longer a restriction.
-
- - Escape: \%
- - Escape: \:
-     To tell `gtroff' how to hyphenate words on the fly, use the `\%'
-     escape, also known as the "hyphenation character".  Preceding a
-     word with this character prevents it from being hyphenated;
-     putting it inside a word indicates to `gtroff' that the word may
-     be hyphenated at that point.  Note that this mechanism only
-     affects that one occurrence of the word; to change the hyphenation
-     of a word for the entire document, use the `hw' request.
-
-     The `\:' escape inserts a zero-width break point (that is, the
-     word breaks but without adding a hyphen).
-
-
-          ... check the /var/log/\:httpd/\:access_log file ...
-
-     Note that `\X' and `\Y' start a word, that is, the `\%' escape in
-     (say) `\X'...'\%foobar' and `\Y'...'\%foobar' no longer prevents
-     hyphenation but inserts a hyphenation point at the beginning of
-     `foobar'; most likely this isn't what you want to do.
-
- - Request: .hc [char]
-     Change the hyphenation character to CHAR.  This character then
-     works the same as the `\%' escape, and thus, no longer appears in
-     the output.  Without an argument, `hc' resets the hyphenation
-     character to be `\%' (the default) only.
-
-     The hyphenation character is associated with the current
-     environment (*note Environments::).
-
- - Request: .hpf pattern_file
- - Request: .hpfa pattern_file
- - Request: .hpfcode a b [c d ...]
-     Read in a file of hyphenation patterns.  This file is searched for
-     in the same way as `NAME.tmac' (or `tmac.NAME') is searched for if
-     the `-mNAME' option is specified.
-
-     It should have the same format as (simple) TeX patterns files.
-     More specifically, the following scanning rules are implemented.
-
-        * A percent sign starts a comment (up to the end of the line)
-          even if preceded by a backslash.
-
-        * No support for `digraphs' like `\$'.
-
-        * `^^XX' (X is 0-9 or a-f) and `^^X' (character code of X in
-          the range 0-127) are recognized; other use of `^' causes an
-          error.
-
-        * No macro expansion.
-
-        * `hpf' checks for the expression `\patterns{...}' (possibly
-          with whitespace before and after the braces).  Everything
-          between the braces is taken as hyphenation patterns.
-          Consequently, `{' and `}' are not allowed in patterns.
-
-        * Similarly, `\hyphenation{...}' gives a list of hyphenation
-          exceptions.
-
-        * `\endinput' is recognized also.
-
-        * For backwards compatibility, if `\patterns' is missing, the
-          whole file is treated as a list of hyphenation patterns (only
-          recognizing the `%' character as the start of a comment).
-
-     If no `hpf' request is specified (either in the document or in a
-     macro package), `gtroff' won't hyphenate at all.
-
-     The `hpfa' request appends a file of patterns to the current list.
-
-     The `hpfcode' request defines mapping values for character codes in
-     hyphenation patterns.  `hpf' or `hpfa' then apply the mapping
-     (after reading the patterns) before replacing or appending them to
-     the current list of patterns.  Its arguments are pairs of
-     character codes - integers from 0 to 255.  The request maps
-     character code A to code B, code C to code D, and so on.  You can
-     use character codes which would be invalid otherwise.
-
-     The set of hyphenation patterns is associated with the current
-     language set by the `hla' request.  The `hpf' request is usually
-     invoked by the `troffrc' or `troffrc-end' file; by default,
-     `troffrc' loads hyphenation patterns and exceptions for American
-     English (in files `hyphen.us' and `hyphenex.us').
-
-     A second call to `hpf' (for the same language) will replace the
-     hyphenation patterns with the new ones.
-
-     Invoking `hpf' causes an error if there is no current hyphenation
-     language.
-
- - Request: .hcode c1 code1 c2 code2 ...
-     Set the hyphenation code of character C1 to CODE1, that of C2 to
-     CODE2, etc.  A hyphenation code must be a single input character
-     (not a special character) other than a digit or a space.
-     Initially each lower-case letter (`a'-`z') has its hyphenation
-     code set to itself, and each upper-case letter (`A'-`Z') has a
-     hyphenation code which is the lower-case version of itself.
-
-     This request is ignored if it has no parameter.
-
- - Request: .hym [length]
- - Register: \n[.hym]
-     Set the (right) hyphenation margin to LENGTH.  If the current
-     adjustment mode is not `b' or `n', the line is not hyphenated if
-     it is shorter than LENGTH.  Without an argument, the hyphenation
-     margin is reset to its default value, which is 0.  The default
-     scaling indicator for this request is `m'.  The hyphenation margin
-     is associated with the current environment (*note Environments::).
-
-     A negative argument resets the hyphenation margin to zero, emitting
-     a warning of type `range'.
-
-     The current hyphenation margin is available in the `.hym' read-only
-     number register.
-
- - Request: .hys [hyphenation_space]
- - Register: \n[.hys]
-     Set the hyphenation space to HYPHENATION_SPACE.  If the current
-     adjustment mode is `b' or `n', don't hyphenate the line if it can
-     be justified by adding no more than HYPHENATION_SPACE extra space
-     to each word space.  Without argument, the hyphenation space is
-     set to its default value, which is 0.  The default scaling
-     indicator for this request is `m'.  The hyphenation space is
-     associated with the current environment (*note Environments::).
-
-     A negative argument resets the hyphenation space to zero, emitting
-     a warning of type `range'.
-
-     The current hyphenation space is available in the `.hys' read-only
-     number register.
-
- - Request: .shc [glyph]
-     Set the "soft hyphen character" to GLYPH.(1) (*note Manipulating
-     Hyphenation-Footnote-1::)  If the argument is omitted, the soft
-     hyphen character is set to the default glyph `\(hy' (this is the
-     start-up value of `gtroff' also).  The soft hyphen character is
-     the glyph that is inserted when a word is hyphenated at a line
-     break.  If the soft hyphen character does not exist in the font of
-     the character immediately preceding a potential break point, then
-     the line is not broken at that point.  Neither definitions
-     (specified with the `char' request) nor translations (specified
-     with the `tr' request) are considered when finding the soft hyphen
-     character.
-
- - Request: .hla language
- - Register: \n[.hla]
-     Set the current hyphenation language to the string LANGUAGE.
-     Hyphenation exceptions specified with the `hw' request and
-     hyphenation patterns specified with the `hpf' and `hpfa' requests
-     are both associated with the current hyphenation language.  The
-     `hla' request is usually invoked by the `troffrc' or the
-     `troffrc-end' files; `troffrc' sets the default language to `us'.
-
-     The current hyphenation language is available as a string in the
-     read-only number register `.hla'.
-
-
-          .ds curr_language \n[.hla]
-          \*[curr_language]
-              => us
-
-
-
-File: groff,  Node: Manipulating Hyphenation-Footnotes,  Up: Manipulating Hyphenation
-
-   (1) "Soft hyphen character" is a misnomer since it is an output
-glyph.
-
-
-File: groff,  Node: Manipulating Spacing,  Next: Tabs and Fields,  Prev: Manipulating Hyphenation,  Up: gtroff Reference
-
-Manipulating Spacing
-====================
-
- - Request: .sp [distance]
-     Space downwards DISTANCE.  With no argument it advances 1 line.  A
-     negative argument causes `gtroff' to move up the page the
-     specified distance.  If the argument is preceded by a `|' then
-     `gtroff' moves that distance from the top of the page.  This
-     request causes a line break.  The default scaling indicator is `v'.
-
-     If a vertical trap is sprung during execution of `sp', the amount
-     of vertical space after the trap is discarded.  For example, this
-
-
-          .de xxx
-          ..
-          .
-          .wh 0 xxx
-          .
-          .pl 5v
-          foo
-          .sp 2
-          bar
-          .sp 50
-          baz
-
-     results in
-
-
-          foo
-          
-          
-          bar
-          
-          baz
-
-     The amount of discarded space is available in the number register
-     `.trunc'.
-
-     To protect `sp' against vertical traps, use the `vpt' request:
-
-
-          .vpt 0
-          .sp -3
-          .vpt 1
-
-
- - Request: .ls [nnn]
- - Register: \n[.L]
-     Output NNN-1 blank lines after each line of text.  With no
-     argument, `gtroff' uses the previous value before the last `ls'
-     call.
-
-
-          .ls 2    \" This causes double-spaced output
-          .ls 3    \" This causes triple-spaced output
-          .ls      \" Again double-spaced
-
-     The line spacing is associated with the current environment (*note
-     Environments::).
-
-     The read-only number register `.L' contains the current line
-     spacing setting.
-
-   *Note Changing Type Sizes::, for the requests `vs' and `pvs' as
-alternatives to `ls'.
-
- - Escape: \x'spacing'
- - Register: \n[.a]
-     Sometimes, extra vertical spacing is only needed occasionally, e.g.
-     to allow space for a tall construct (like an equation).  The `\x'
-     escape does this.  The escape is given a numerical argument,
-     usually enclosed in quotes (like `\x'3p''); the default scaling
-     indicator is `v'.  If this number is positive extra vertical space
-     is inserted below the current line.  A negative number adds space
-     above.  If this escape is used multiple times on the same line,
-     the maximum of the values is used.
-
-     *Note Escapes::, for details on parameter delimiting characters.
-
-     The `.a' read-only number register contains the most recent
-     (nonnegative) extra vertical line space.
-
-     Using `\x' can be necessary in combination with the `\b' escape,
-     as the following example shows.
-
-
-          This is a test with the \[rs]b escape.
-          .br
-          This is a test with the \[rs]b escape.
-          .br
-          This is a test with \b'xyz'\x'-1m'\x'1m'.
-          .br
-          This is a test with the \[rs]b escape.
-          .br
-          This is a test with the \[rs]b escape.
-
-     produces
-
-
-          This is a test with the \b escape.
-          This is a test with the \b escape.
-                              x
-          This is a test with y.
-                              z
-          This is a test with the \b escape.
-          This is a test with the \b escape.
-
-
- - Request: .ns
- - Request: .rs
- - Register: \n[.ns]
-     Enable "no-space mode".  In this mode, spacing (either via `sp' or
-     via blank lines) is disabled.  The `bp' request to advance to the
-     next page is also disabled, except if it is accompanied by a page
-     number (see *Note Page Control::, for more information).  This
-     mode ends when actual text is output or the `rs' request is
-     encountered which ends no-space mode.  The read-only number
-     register `.ns' is set to 1 as long as no-space mode is active.
-
-     This request is useful for macros that conditionally insert
-     vertical space before the text starts (for example, a paragraph
-     macro could insert some space except when it is the first
-     paragraph after a section header).
-
-
-File: groff,  Node: Tabs and Fields,  Next: Character Translations,  Prev: Manipulating Spacing,  Up: gtroff Reference
-
-Tabs and Fields
-===============
-
-   A tab character (ASCII char 9, EBCDIC char 5) causes a horizontal
-movement to the next tab stop (much like it did on a typewriter).
-
- - Escape: \t
-     This escape is a non-interpreted tab character.  In copy mode
-     (*note Copy-in Mode::), `\t' is the same as a real tab character.
-
- - Request: .ta [n1 n2 ... nn T r1 r2 ... rn]
- - Register: \n[.tabs]
-     Change tab stop positions.  This request takes a series of tab
-     specifiers as arguments (optionally divided into two groups with
-     the letter `T') which indicate where each tab stop is to be
-     (overriding any previous settings).
-
-     Tab stops can be specified absolutely, i.e., as the distance from
-     the left margin.  For example, the following sets 6 tab stops every
-     one inch.
-
-
-          .ta 1i 2i 3i 4i 5i 6i
-
-     Tab stops can also be specified using a leading `+' which means
-     that the specified tab stop is set relative to the previous tab
-     stop.  For example, the following is equivalent to the previous
-     example.
-
-
-          .ta 1i +1i +1i +1i +1i +1i
-
-     `gtroff' supports an extended syntax to specify repeat values after
-     the `T' mark (these values are always taken as relative) - this is
-     the usual way to specify tabs set at equal intervals.  The
-     following is, yet again, the same as the previous examples.  It
-     does even more since it defines an infinite number of tab stops
-     separated by one inch.
-
-
-          .ta T 1i
-
-     Now we are ready to interpret the full syntax given at the
-     beginning: Set tabs at positions N1, N2, ..., NN and then set tabs
-     at NN+R1, NN+R2, ..., NN+RN and then at NN+RN+R1, NN+RN+R2, ...,
-     NN+RN+RN, and so on.
-
-     Example: `4c +6c T 3c 5c 2c' is equivalent to `4c 10c 13c 18c 20c
-     23c 28c 30c ...'.
-
-     The material in each tab column (i.e., the column between two tab
-     stops) may be justified to the right or left or centered in the
-     column.  This is specified by appending `R', `L', or `C' to the tab
-     specifier.  The default justification is `L'.  Example:
-
-
-          .ta 1i 2iC 3iR
-
-     Some notes:
-
-        * The default unit of the `ta' request is `m'.
-
-        * A tab stop is converted into a non-breakable horizontal
-          movement which can be neither stretched nor squeezed.  For
-          example,
-
-
-               .ds foo a\tb\tc
-               .ta T 5i
-               \*[foo]
-
-          creates a single line which is a bit longer than 10 inches (a
-          string is used to show exactly where the tab characters are).
-          Now consider the following:
-
-
-               .ds bar a\tb b\tc
-               .ta T 5i
-               \*[bar]
-
-          `gtroff' first converts the tab stops of the line into
-          unbreakable horizontal movements, then splits the line after
-          the second `b' (assuming a sufficiently short line length).
-          Usually, this isn't what the user wants.
-
-        * Superfluous tabs (i.e., tab characters which do not
-          correspond to a tab stop) are ignored except the first one
-          which delimits the characters belonging to the last tab stop
-          for right-justifying or centering.  Consider the following
-          example
-
-
-               .ds Z   foo\tbar\tfoo
-               .ds ZZ  foo\tbar\tfoobar
-               .ds ZZZ foo\tbar\tfoo\tbar
-               .ta 2i 4iR
-               \*[Z]
-               .br
-               \*[ZZ]
-               .br
-               \*[ZZZ]
-               .br
-
-          which produces the following output:
-
-
-               foo                 bar              foo
-               foo                 bar           foobar
-               foo                 bar              foobar
-
-          The first line right-justifies the second `foo' relative to
-          the tab stop.  The second line right-justifies `foobar'.  The
-          third line finally right-justifies only `foo' because of the
-          additional tab character which marks the end of the string
-          belonging to the last defined tab stop.
-
-        * Tab stops are associated with the current environment (*note
-          Environments::).
-
-        * Calling `ta' without an argument removes all tab stops.
-
-        * The start-up value of `gtroff' is `T 0.8i'.
-
-     The read-only number register `.tabs' contains a string
-     representation of the current tab settings suitable for use as an
-     argument to the `ta' request.
-
-
-          .ds tab-string \n[.tabs]
-          \*[tab-string]
-              => T120u
-
-     The `troff' version of the Plan 9 operating system uses register
-     `.S' for the same purpose.
-
- - Request: .tc [fill-glyph]
-     Normally `gtroff' fills the space to the next tab stop with
-     whitespace.  This can be changed with the `tc' request.  With no
-     argument `gtroff' reverts to using whitespace, which is the
-     default.  The value of this "tab repetition character" is
-     associated with the current environment (*note Environments::).(1)
-     (*note Tabs and Fields-Footnote-1::)
-
- - Request: .linetabs n
- - Register: \n[.linetabs]
-     If N is missing or not zero, enable "line-tabs" mode, or disable
-     it otherwise (the default).  In line-tabs mode, `gtroff' computes
-     tab distances relative to the (current) output line instead of the
-     input line.
-
-     For example, the following code:
-
-
-          .ds x a\t\c
-          .ds y b\t\c
-          .ds z c
-          .ta 1i 3i
-          \*x
-          \*y
-          \*z
-
-     in normal mode, results in the output
-
-
-          a         b         c
-
-     in line-tabs mode, the same code outputs
-
-
-          a         b                   c
-
-     Line-tabs mode is associated with the current environment.  The
-     read-only register `.linetabs' is set to 1 if in line-tabs mode,
-     and 0 in normal mode.
-
-* Menu:
-
-* Leaders::
-* Fields::
-
-
-File: groff,  Node: Tabs and Fields-Footnotes,  Up: Tabs and Fields
-
-   (1) "Tab repetition character" is a misnomer since it is an output
-glyph.
-
-
-File: groff,  Node: Leaders,  Next: Fields,  Prev: Tabs and Fields,  Up: Tabs and Fields
-
-Leaders
--------
-
-   Sometimes it may may be desirable to use the `tc' request to fill a
-particular tab stop with a given glyph (for example dots in a table of
-contents), but also normal tab stops on the rest of the line.  For this
-`gtroff' provides an alternate tab mechanism, called "leaders" which
-does just that.
-
-   A leader character (character code 1) behaves similarly to a tab
-character: It moves to the next tab stop.  The only difference is that
-for this movement, the fill glyph defaults to a period character and
-not to space.
-
- - Escape: \a
-     This escape is a non-interpreted leader character.  In copy mode
-     (*note Copy-in Mode::), `\a' is the same as a real leader
-     character.
-
- - Request: .lc [fill-glyph]
-     Declare the "leader repetition character".(1) (*note
-     Leaders-Footnote-1::) Without an argument, leaders act the same as
-     tabs (i.e., using whitespace for filling).  `gtroff''s start-up
-     value is a dot (`.').  The value of the leader repetition
-     character is associated with the current environment (*note
-     Environments::).
-
-   For a table of contents, to name an example, tab stops may be
-defined so that the section number is one tab stop, the title is the
-second with the remaining space being filled with a line of dots, and
-then the page number slightly separated from the dots.
-
-
-     .ds entry 1.1\tFoo\a\t12
-     .lc .
-     .ta 1i 5i +.25i
-     \*[entry]
-
-This produces
-
-
-     1.1  Foo..........................................  12
-
-
-File: groff,  Node: Leaders-Footnotes,  Up: Leaders
-
-   (1) "Leader repetition character" is a misnomer since it is an
-output glyph.
-
-
-File: groff,  Node: Fields,  Prev: Leaders,  Up: Tabs and Fields
-
-Fields
-------
-
-   "Fields" are a more general way of laying out tabular data.  A field
-is defined as the data between a pair of "delimiting characters".  It
-contains substrings which are separated by "padding characters".  The
-width of a field is the distance on the _input_ line from the position
-where the field starts to the next tab stop.  A padding character
-inserts stretchable space similar to TeX's `\hss' command (thus it can
-even be negative) to make the sum of all substring lengths plus the
-stretchable space equal to the field width.  If more than one padding
-character is inserted, the available space is evenly distributed among
-them.
-
- - Request: .fc [delim-char [padding-char]]
-     Define a delimiting and a padding character for fields.  If the
-     latter is missing, the padding character defaults to a space
-     character.  If there is no argument at all, the field mechanism is
-     disabled (which is the default).  Note that contrary to e.g. the
-     tab repetition character, delimiting and padding characters are
-     _not_ associated to the current environment (*note Environments::).
-
-     Example:
-
-
-          .fc # ^
-          .ta T 3i
-          #foo^bar^smurf#
-          .br
-          #foo^^bar^smurf#
-
-     and here the result:
-
-
-          foo         bar          smurf
-          foo            bar       smurf
-
-
-
-File: groff,  Node: Character Translations,  Next: Troff and Nroff Mode,  Prev: Tabs and Fields,  Up: gtroff Reference
-
-Character Translations
-======================
-
-   The control character (`.') and the no-break control character (`'')
-can be changed with the `cc' and `c2' requests, respectively.
-
- - Request: .cc [c]
-     Set the control character to C.  With no argument the default
-     control character `.' is restored.  The value of the control
-     character is associated with the current environment (*note
-     Environments::).
-
- - Request: .c2 [c]
-     Set the no-break control character to C.  With no argument the
-     default control character `'' is restored.  The value of the
-     no-break control character is associated with the current
-     environment (*note Environments::).
-
- - Request: .eo
-     Disable the escape mechanism completely.  After executing this
-     request, the backslash character `\' no longer starts an escape
-     sequence.
-
-     This request can be very helpful in writing macros since it is not
-     necessary then to double the escape character.  Here an example:
-
-
-          .\" This is a simplified version of the
-          .\" .BR request from the man macro package
-          .eo
-          .de BR
-          .  ds result \&
-          .  while (\n[.$] >= 2) \{\
-          .    as result \fB\$1\fR\$2
-          .    shift 2
-          .  \}
-          .  if \n[.$] .as result \fB\$1
-          \*[result]
-          .  ft R
-          ..
-          .ec
-
-
- - Request: .ec [c]
-     Set the escape character to C.  With no argument the default
-     escape character `\' is restored.  It can be also used to
-     re-enable the escape mechanism after an `eo' request.
-
-     Note that changing the escape character globally will likely break
-     macro packages since `gtroff' has no mechanism to `intern' macros,
-     i.e., to convert a macro definition into an internal form which is
-     independent of its representation (TeX has this mechanism).  If a
-     macro is called, it is executed literally.
-
- - Request: .ecs
- - Request: .ecr
-     The `ecs' request saves the current escape character in an
-     internal register.  Use this request in combination with the `ec'
-     request to temporarily change the escape character.
-
-     The `ecr' request restores the escape character saved with `ecs'.
-     Without a previous call to `ecs', this request sets the escape
-     character to `\'.
-
- - Escape: \\
- - Escape: \e
- - Escape: \E
-     Print the current escape character (which is the backslash
-     character `\' by default).
-
-     `\\' is a `delayed' backslash; more precisely, it is the default
-     escape character followed by a backslash, which no longer has
-     special meaning due to the leading escape character.  It is _not_
-     an escape sequence in the usual sense!  In any unknown escape
-     sequence `\X' the escape character is ignored and X is printed.
-     But if X is equal to the current escape character, no warning is
-     emitted.
-
-     As a consequence, only at top-level or in a diversion a backslash
-     glyph is printed; in copy-in mode, it expands to a single
-     backslash which then combines with the following character to an
-     escape sequence.
-
-     The `\E' escape differs from `\e' by printing an escape character
-     that is not interpreted in copy mode.  Use this to define strings
-     with escapes that work when used in copy mode (for example, as a
-     macro argument).  The following example defines strings to begin
-     and end a superscript:
-
-
-          .ds { \v'-.3m'\s'\En[.s]*60/100'
-          .ds } \s0\v'.3m'
-
-     Another example to demonstrate the differences between the various
-     escape sequences, using a strange escape character, `-'.
-
-
-          .ec -
-          .de xxx
-          --A'123'
-          ..
-          .xxx
-              => -A'foo'
-
-     The result is surprising for most users, expecting `1' since `foo'
-     is a valid identifier.  What has happened?  As mentioned above,
-     the leading escape character makes the following character
-     ordinary.  Written with the default escape character the sequence
-     `--' becomes `\-' - this is the minus sign.
-
-     If the escape character followed by itself is a valid escape
-     sequence, only `\E' yields the expected result:
-
-
-          .ec -
-          .de xxx
-          -EA'123'
-          ..
-          .xxx
-              => 1
-
-
- - Escape: \.
-     Similar to `\\', the sequence `\.' isn't a real escape sequence.
-     As before, a warning message is suppressed if the escape character
-     is followed by a dot, and the dot itself is printed.
-
-
-          .de foo
-          .  nop foo
-          .
-          .  de bar
-          .    nop bar
-          \\..
-          .
-          ..
-          .foo
-          .bar
-              => foo bar
-
-     The first backslash is consumed while the macro is read, and the
-     second is swallowed while exexuting macro `foo'.
-
-   A "translation" is a mapping of an input character to an output
-glyph.  The mapping occurs at output time, i.e., the input character
-gets assigned the metric information of the mapped output character
-right before input tokens are converted to nodes (*note Gtroff
-Internals::, for more on this process).
-
- - Request: .tr abcd...
- - Request: .trin abcd...
-     Translate character A to glyph B, character C to glyph D, etc.  If
-     there is an odd number of arguments, the last one is translated to
-     an unstretchable space (`\ ').
-
-     The `trin' request is identical to `tr', but when you unformat a
-     diversion with `asciify' it ignores the translation.  *Note
-     Diversions::, for details about the `asciify' request.
-
-     Some notes:
-
-        * Special characters (`\(XX', `\[XXX]', `\C'XXX'', `\'', `\`',
-          `\-', `\_'), glyphs defined with the `char' request, and
-          numbered glyphs (`\N'XXX'') can be translated also.
-
-        * The `\e' escape can be translated also.
-
-        * Characters can be mapped onto the `\%' and `\~' escapes (but
-          `\%' and `\~' can't be mapped onto another glyph).
-
-        * The following characters can't be translated: space (with one
-          exception, see below), backspace, newline, leader (and `\a'),
-          tab (and `\t').
-
-        * Translations are not considered for finding the soft hyphen
-          character set with the `shc' request.
-
-        * The pair `C\&' (this is an arbitrary character C followed by
-          the zero width space character) maps this character to
-          nothing.
-
-
-               .tr a\&
-               foo bar
-                   => foo br
-
-          It is even possible to map the space character to nothing:
-
-
-               .tr aa \&
-               foo bar
-                   => foobar
-
-          As shown in the example, the space character can't be the
-          first character/glyph pair as an argument of `tr'.
-          Additionally, it is not possible to map the space character
-          to any other glyph; requests like `.tr aa x' undo `.tr aa \&'
-          instead.
-
-          If justification is active, lines are justified in spite of
-          the `empty' space character (but there is no minimal
-          distance, i.e. the space character, between words).
-
-        * After an output glyph has been constructed (this happens at
-          the moment immediately before the glyph is appended to an
-          output glyph list, either by direct output, in a macro,
-          diversion, or string), it is no longer affected by `tr'.
-
-        * Translating character to glyphs where one of them or both are
-          undefined is possible also; `tr' does not check whether the
-          entities in its argument do exist.
-
-          *Note Gtroff Internals::.
-
-        * `troff' no longer has a hard-coded dependency on Latin-1; all
-          `charXXX' entities have been removed from the font
-          description files.  This has a notable consequence which
-          shows up in warnings like `can't find character with input
-          code XXX' if the `tr' request isn't handled properly.
-
-          Consider the following translation:
-
-
-               .tr e'E'
-
-          This maps input character `e'' onto glyph `E'', which is
-          identical to glyph `char201'.  But this glyph intentionally
-          doesn't exist!  Instead, `\[char201]' is treated as an input
-          character entity and is by default mapped onto `\['E]', and
-          `gtroff' doesn't handle translations of translations.
-
-          The right way to write the above translation is
-
-
-               .tr e'\['E]
-
-          With other words, the first argument of `tr' should be an
-          input character or entity, and the second one a glyph entity.
-
-        * Without an argument, the `tr' request is ignored.
-
- - Request: .trnt abcd...
-     `trnt' is the same as the `tr' request except that the
-     translations do not apply to text that is transparently throughput
-     into a diversion with `\!'.  *Note Diversions::, for more
-     information.
-
-     For example,
-
-
-          .tr ab
-          .di x
-          \!.tm a
-          .di
-          .x
-
-     prints `b' to the standard error stream; if `trnt' is used instead
-     of `tr' it prints `a'.
-
-
-File: groff,  Node: Troff and Nroff Mode,  Next: Line Layout,  Prev: Character Translations,  Up: gtroff Reference
-
-Troff and Nroff Mode
-====================
-
-   Originally, `nroff' and `troff' were two separate programs, the
-former for TTY output, the latter for everything else.  With GNU
-`troff', both programs are merged into one executable, sending its
-output to a device driver (`grotty' for TTY devices, `grops' for
-POSTSCRIPT, etc.) which interprets the intermediate output of `gtroff'.
-For UNIX `troff' it makes sense to talk about "Nroff mode" and "Troff
-mode" since the differences are hardcoded.  For GNU `troff', this
-distinction is not appropriate because `gtroff' simply takes the
-information given in the font files for a particular device without
-handling requests specially if a TTY output device is used.
-
-   Usually, a macro package can be used with all output devices.
-Nevertheless, it is sometimes necessary to make a distinction between
-TTY and non-TTY devices: `gtroff' provides two built-in conditions `n'
-and `t' for the `if', `ie', and `while' requests to decide whether
-`gtroff' shall behave like `nroff' or like `troff'.
-
- - Request: .troff
-     Make the `t' built-in condition true (and the `n' built-in
-     condition false) for `if', `ie', and `while' conditional requests.
-     This is the default if `gtroff' (_not_ `groff') is started with
-     the `-R' switch to avoid loading of the start-up files `troffrc'
-     and `troffrc-end'.  Without `-R', `gtroff' stays in troff mode if
-     the output device is not a TTY (e.g. `ps').
-
- - Request: .nroff
-     Make the `n' built-in condition true (and the `t' built-in
-     condition false) for `if', `ie', and `while' conditional requests.
-     This is the default if `gtroff' uses a TTY output device; the
-     code for switching to nroff mode is in the file `tty.tmac' which
-     is loaded by the start-up file `troffrc'.
-
-   *Note Conditionals and Loops::, for more details on built-in
-conditions.
-
-
-File: groff,  Node: Line Layout,  Next: Line Control,  Prev: Troff and Nroff Mode,  Up: gtroff Reference
-
-Line Layout
-===========
-
-   The following drawing shows the dimensions which `gtroff' uses for
-placing a line of output onto the page.  They are labeled with the
-request which manipulates each dimension.
-
-
-                     -->| in |<--
-                        |<-----------ll------------>|
-                   +----+----+----------------------+----+
-                   |    :    :                      :    |
-                   +----+----+----------------------+----+
-                -->| po |<--
-                   |<--------paper width---------------->|
-
-These dimensions are:
-
-`po'
-     "Page offset" - this is the leftmost position of text on the final
-     output, defining the "left margin".
-
-`in'
-     "Indentation" - this is the distance from the left margin where
-     text is printed.
-
-`ll'
-     "Line length" - this is the distance from the left margin to right
-     margin.
-
-   A simple demonstration:
-
-
-     .ll 3i
-     This is text without indentation.
-     The line length has been set to 3\~inch.
-     .in +.5i
-     .ll -.5i
-     Now the left and right margins are both increased.
-     .in
-     .ll
-     Calling .in and .ll without parameters restore
-     the previous values.
-
-   Result:
-
-
-     This  is text without indenta-
-     tion.   The  line  length  has
-     been set to 3 inch.
-          Now   the  left  and
-          right  margins   are
-          both increased.
-     Calling  .in  and  .ll without
-     parameters restore the  previ-
-     ous values.
-
- - Request: .po [offset]
- - Request: .po +offset
- - Request: .po -offset
- - Register: \n[.o]
-     Set horizontal page offset to OFFSET (or increment or decrement
-     the current value by OFFSET).  Note that this request does not
-     cause a break, so changing the page offset in the middle of text
-     being filled may not yield the expected result.  The initial value
-     is 1i.  For TTY output devices, it is set to 0 in the startup file
-     `troffrc'; the default scaling indicator is `m' (and not `v' as
-     incorrectly documented in the original UNIX troff manual).
-
-     The current page offset can be found in the read-only number
-     register `.o'.
-
-     If `po' is called without an argument, the page offset is reset to
-     the previous value before the last call to `po'.
-
-
-          .po 3i
-          \n[.o]
-              => 720
-          .po -1i
-          \n[.o]
-              => 480
-          .po
-          \n[.o]
-              => 720
-
-
- - Request: .in [indent]
- - Request: .in +indent
- - Request: .in -indent
- - Register: \n[.i]
-     Set indentation to INDENT (or increment or decrement the current
-     value by INDENT).  This request causes a break.  Initially, there
-     is no indentation.
-
-     If `in' is called without an argument, the indentation is reset to
-     the previous value before the last call to `in'.  The default
-     scaling indicator is `m'.
-
-     The indentation is associated with the current environment (*note
-     Environments::).
-
-     If a negative indentation value is specified (which is not
-     allowed), `gtroff' emits a warning of type `range' and sets the
-     indentation to zero.
-
-     The effect of `in' is delayed until a partially collected line (if
-     it exists) is output.  A temporary indent value is reset to zero
-     also.
-
-     The current indentation (as set by `in') can be found in the
-     read-only number register `.i'.
-
- - Request: .ti offset
- - Request: .ti +offset
- - Request: .ti -offset
- - Register: \n[.in]
-     Temporarily indent the next output line by OFFSET.  If an
-     increment or decrement value is specified, adjust the temporary
-     indentation relative to the value set by the `in' request.
-
-     This request causes a break; its value is associated with the
-     current environment (*note Environments::).  The default scaling
-     indicator is `m'.  A call of `ti' without an argument is ignored.
-
-     If the total indentation value is negative (which is not allowed),
-     `gtroff' emits a warning of type `range' and sets the temporary
-     indentation to zero.  `Total indentation' is either OFFSET if
-     specified as an absolute value, or the temporary plus normal
-     indentation, if OFFSET is given as a relative value.
-
-     The effect of `ti' is delayed until a partially collected line (if
-     it exists) is output.
-
-     The read-only number register `.in' is the indentation that applies
-     to the current output line.
-
-     The difference between `.i' and `.in' is that the latter takes
-     into account whether a partially collected line still uses the old
-     indentation value or a temporary indentation value is active.
-
- - Request: .ll [length]
- - Request: .ll +length
- - Request: .ll -length
- - Register: \n[.l]
- - Register: \n[.ll]
-     Set the line length to LENGTH (or increment or decrement the
-     current value by LENGTH).  Initially, the line length is set to
-     6.5i.  The effect of `ll' is delayed until a partially collected
-     line (if it exists) is output.  The default scaling indicator is
-     `m'.
-
-     If `ll' is called without an argument, the line length is reset to
-     the previous value before the last call to `ll'.  If a negative
-     line length is specified (which is not allowed), `gtroff' emits a
-     warning of type `range' and sets the line length to zero.
-
-     The line length is associated with the current environment (*note
-     Environments::).
-
-     The current line length (as set by `ll') can be found in the
-     read-only number register `.l'.  The read-only number register
-     `.ll' is the line length that applies to the current output line.
-
-     Similar to `.i' and `.in', the difference between `.l' and `.ll'
-     is that the latter takes into account whether a partially
-     collected line still uses the old line length value.
-
diff --git a/contrib/groff/doc/groff-5 b/contrib/groff/doc/groff-5
deleted file mode 100644
index 2130766..0000000
--- a/contrib/groff/doc/groff-5
+++ /dev/null
@@ -1,1327 +0,0 @@
-This is groff, produced by makeinfo version 4.3d from ./groff.texinfo.
-
-This manual documents GNU `troff' version 1.19.
-
-   Copyright (C) 1994-2000, 2001, 2002, 2003 Free Software Foundation,
-Inc.
-
-     Permission is granted to copy, distribute and/or modify this
-     document under the terms of the GNU Free Documentation License,
-     Version 1.1 or any later version published by the Free Software
-     Foundation; with no Invariant Sections, with the Front-Cover texts
-     being `A GNU Manual," and with the Back-Cover Texts as in (a)
-     below.  A copy of the license is included in the section entitled
-     `GNU Free Documentation License."
-
-     (a) The FSF's Back-Cover Text is: `You have freedom to copy and
-     modify this GNU Manual, like GNU software.  Copies published by
-     the Free Software Foundation raise funds for GNU development."
-   
-INFO-DIR-SECTION Typesetting
-START-INFO-DIR-ENTRY
-* Groff: (groff).               The GNU troff document formatting system.
-END-INFO-DIR-ENTRY
-
-
-File: groff,  Node: Line Control,  Next: Page Layout,  Prev: Line Layout,  Up: gtroff Reference
-
-Line Control
-============
-
-   It is important to understand how `gtroff' handles input and output
-lines.
-
-   Many escapes use positioning relative to the input line.  For
-example, this
-
-
-     This is a \h'|1.2i'test.
-     
-     This is a
-     \h'|1.2i'test.
-
-produces
-
-
-     This is a   test.
-     
-     This is a             test.
-
-   The main usage of this feature is to define macros which act exactly
-at the place where called.
-
-
-     .\" A simple macro to underline a word
-     .de underline
-     .  nop \\$1\l'|0\[ul]'
-     ..
-
-In the above example, `|0' specifies a negative distance from the
-current position (at the end of the just emitted argument `\$1') back
-to the beginning of the input line.  Thus, the `\l' escape draws a line
-from right to left.
-
-   `gtroff' makes a difference between input and output line
-continuation; the latter is also called "interrupting" a line.
-
- - Escape: \<RET>
- - Escape: \c
- - Register: \n[.int]
-     Continue a line.  `\<RET>' (this is a backslash at the end of a
-     line immediately followed by a newline) works on the input level,
-     suppressing the effects of the following newline in the input.
-
-
-          This is a \
-          .test
-              => This is a .test
-
-     The `|' operator is also affected.
-
-     `\c' works on the output level.  Anything after this escape on the
-     same line is ignored, except `\R' which works as usual.  Anything
-     before `\c' on the same line will be appended to the current
-     partial output line.  The next non-command line after an
-     interrupted line counts as a new input line.
-
-     The visual results depend on whether no-fill mode is active.
-
-        * If no-fill mode is active (using the `nf' request), the next
-          input text line after `\c' will be handled as a continuation
-          of the same input text line.
-
-
-               .nf
-               This is a \c
-               test.
-                   => This is a test.
-
-        * If fill mode is active (using the `fi' request), a word
-          interrupted with `\c' will be continued with the text on the
-          next input text line, without an intervening space.
-
-
-               This is a te\c
-               st.
-                   => This is a test.
-
-
-     Note that an intervening control line which causes a break is
-     stronger than `\c', flushing out the current partial line in the
-     usual way.
-
-     The `.int' register contains a positive value if the last output
-     line was interrupted with `\c'; this is associated with the
-     current environment (*note Environments::).
-
-
-
-File: groff,  Node: Page Layout,  Next: Page Control,  Prev: Line Control,  Up: gtroff Reference
-
-Page Layout
-===========
-
-   `gtroff' provides some very primitive operations for controlling
-page layout.
-
- - Request: .pl [length]
- - Request: .pl +length
- - Request: .pl -length
- - Register: \n[.p]
-     Set the "page length" to LENGTH (or increment or decrement the
-     current value by LENGTH).  This is the length of the physical
-     output page.  The default scaling indicator is `v'.
-
-     The current setting can be found in the read-only number register
-     `.p'.
-
-     Note that this only specifies the size of the page, not the top and
-     bottom margins.  Those are not set by `gtroff' directly.  *Note
-     Traps::, for further information on how to do this.
-
-     Negative `pl' values are possible also, but not very useful: No
-     trap is sprung, and each line is output on a single page (thus
-     suppressing all vertical spacing).
-
-     If no argument or an invalid argument is given, `pl' sets the page
-     length to 11i.
-
-   `gtroff' provides several operations which help in setting up top
-and bottom titles (or headers and footers).
-
- - Request: .tl 'left'center'right'
-     Print a "title line".  It consists of three parts: a left
-     justified portion, a centered portion, and a right justified
-     portion.  The argument separator `'' can be replaced with any
-     character not occurring in the title line.  The `%' character is
-     replaced with the current page number.  This character can be
-     changed with the `pc' request (see below).
-
-     Without argument, `tl' is ignored.
-
-     Some notes:
-
-        * A title line is not restricted to the top or bottom of a page.
-
-        * `tl' prints the title line immediately, ignoring a partially
-          filled line (which stays untouched).
-
-        * It is not an error to omit closing delimiters.  For example,
-          `.tl /foo' is equivalent to `.tl /foo///': It prints a title
-          line with the left justified word `foo'; the centered and
-          right justfied parts are empty.
-
-        * `tl' accepts the same parameter delimiting characters as the
-          `\A' escape; see *Note Escapes::.
-
- - Request: .lt [length]
- - Request: .lt +length
- - Request: .lt -length
- - Register: \n[.lt]
-     The title line is printed using its own line length, which is
-     specified (or incremented or decremented) with the `lt' request.
-     Initially, the title line length is set to 6.5i.  If a negative
-     line length is specified (which is not allowed), `gtroff' emits a
-     warning of type `range' and sets the title line length to zero.
-     The default scaling indicator is `m'.  If `lt' is called without
-     an argument, the title length is reset to the previous value
-     before the last call to `lt'.
-
-     The current setting of this is available in the `.lt' read-only
-     number register; it is associated with the current environment
-     (*note Environments::).
-
-
- - Request: .pn page
- - Request: .pn +page
- - Request: .pn -page
- - Register: \n[.pn]
-     Change (increase or decrease) the page number of the _next_ page.
-     The only argument is the page number; the request is ignored
-     without a parameter.
-
-     The read-only number register `.pn' contains the number of the next
-     page: either the value set by a `pn' request, or the number of the
-     current page plus 1.
-
- - Register: \n[%]
-     A read-write register holding the current page number.
-
- - Request: .pc [char]
-     Change the page number character (used by the `tl' request) to a
-     different character.  With no argument, this mechanism is disabled.
-     Note that this doesn't affect the number register `%'.
-
-   *Note Traps::.
-
-
-File: groff,  Node: Page Control,  Next: Fonts and Symbols,  Prev: Page Layout,  Up: gtroff Reference
-
-Page Control
-============
-
- - Request: .bp [page]
- - Request: .bp +page
- - Request: .bp -page
-     Stop processing the current page and move to the next page.  This
-     request causes a break.  It can also take an argument to set
-     (increase, decrease) the page number of the next page.  The only
-     difference between `bp' and `pn' is that `pn' does not cause a
-     break or actually eject a page.
-
-
-          .de newpage                         \" define macro
-          'bp                                 \" begin page
-          'sp .5i                             \" vertical space
-          .tl 'left top'center top'right top' \" title
-          'sp .3i                             \" vertical space
-          ..                                  \" end macro
-
-     `bp' has no effect if not called within the top-level diversion
-     (*note Diversions::).
-
-     The number register `.pe' is set to 1 while `bp' is active.  *Note
-     Page Location Traps::.
-
- - Request: .ne [space]
-     It is often necessary to force a certain amount of space before a
-     new page occurs.  This is most useful to make sure that there is
-     not a single "orphan" line left at the bottom of a page.  The `ne'
-     request ensures that there is a certain distance, specified by the
-     first argument, before the next page is triggered (see *Note
-     Traps::, for further information).  The default scaling indicator
-     for `ne' is `v'; the default value of SPACE is 1v if no argument
-     is given.
-
-     For example, to make sure that no fewer than 2 lines get orphaned,
-     do the following before each paragraph:
-
-
-          .ne 2
-          text text text
-
-     `ne' will then automatically cause a page break if there is space
-     for one line only.
-
- - Request: .sv [space]
- - Request: .os
-     `sv' is similar to the `ne' request; it reserves the specified
-     amount of vertical space.  If the desired amount of space exists
-     before the next trap (or the bottom page boundary if no trap is
-     set), the space is output immediately (ignoring a partially filled
-     line which stays untouched).  If there is not enough space, it is
-     stored for later output via the `os' request.  The default value
-     is 1v if no argument is given; the default scaling indicator is
-     `v'.
-
-     Both `sv' and `os' ignore no-space mode.  While the `sv' request
-     allows negative values for SPACE, `os' will ignore them.
-
- - Register: \n[nl]
-     This register contains the current vertical position.  If the
-     vertical position is zero and the top of page transition hasn't
-     happened yet, `nl' is set to negative value.  `gtroff' itself does
-     this at the very beginning of a document before anything has been
-     printed, but the main usage is to plant a header trap on a page if
-     this page has already started.
-
-     Consider the following:
-
-
-          .de xxx
-          .  sp
-          .  tl ''Header''
-          .  sp
-          ..
-          .
-          First page.
-          .bp
-          .wh 0 xxx
-          .nr nl (-1)
-          Second page.
-
-     Result:
-
-
-          First page.
-          
-          ...
-          
-                                       Header
-          
-          Second page.
-          
-          ...
-
-     Without resetting `nl' to a negative value, the just planted trap
-     would be active beginning with the _next_ page, not the current
-     one.
-
-     *Note Diversions::, for a comparison with the `.h' and `.d'
-     registers.
-
-
-File: groff,  Node: Fonts and Symbols,  Next: Sizes,  Prev: Page Control,  Up: gtroff Reference
-
-Fonts and Symbols
-=================
-
-   `gtroff' can switch fonts at any point in the text.
-
-   The basic set of fonts is `R', `I', `B', and `BI'.  These are Times
-Roman, Italic, Bold, and Bold Italic.  For non-TTY devices, there is
-also at least one symbol font which contains various special symbols
-(Greek, mathematics).
-
-* Menu:
-
-* Changing Fonts::
-* Font Families::
-* Font Positions::
-* Using Symbols::
-* Special Fonts::
-* Artificial Fonts::
-* Ligatures and Kerning::
-
-
-File: groff,  Node: Changing Fonts,  Next: Font Families,  Prev: Fonts and Symbols,  Up: Fonts and Symbols
-
-Changing Fonts
---------------
-
- - Request: .ft [font]
- - Escape: \ff
- - Escape: \f(fn
- - Escape: \f[font]
-     The `ft' request and the `\f' escape change the current font to
-     FONT (one-character name F, two-character name FN).
-
-     If FONT is a style name (as set with the `sty' request or with the
-     `styles' command in the `DESC' file), use it within the current
-     font family (as set with the `fam' request, `\F' escape, or with
-     the `family' command in the `DESC' file).
-
-     With no argument or using `P' as an argument, `.ft' switches to
-     the previous font.  Use `\f[]' to do this with the escape.  The
-     old syntax forms `\fP' or `\f[P]' are also supported.
-
-     Fonts are generally specified as upper-case strings, which are
-     usually 1 to 4 characters representing an abbreviation or acronym
-     of the font name.  This is no limitation, just a convention.
-
-     The example below produces two identical lines.
-
-
-          eggs, bacon,
-          .ft B
-          spam
-          .ft
-          and sausage.
-          
-          eggs, bacon, \fBspam\fP and sausage.
-
-     Note that `\f' doesn't produce an input token in `gtroff'.  As a
-     consequence, it can be used in requests like `mc' (which expects a
-     single character as an argument) to change the font on the fly:
-
-
-          .mc \f[I]x\f[]
-
-     *Note Font Positions::, for an alternative syntax.
-
- - Request: .ftr f [g]
-     Translate font F to font G.  Whenever a font named F is referred
-     to in a `\f' escape sequence, or in the `ft', `ul', `bd', `cs',
-     `tkf', `special', `fspecial', `fp', or `sty' requests, font G is
-     used.  If G is missing or equal to F the translation is undone.
-
-
-File: groff,  Node: Font Families,  Next: Font Positions,  Prev: Changing Fonts,  Up: Fonts and Symbols
-
-Font Families
--------------
-
-   Due to the variety of fonts available, `gtroff' has added the
-concept of "font families" and "font styles".  The fonts are specified
-as the concatenation of the font family and style.  Specifying a font
-without the family part causes `gtroff' to use that style of the
-current family.
-
-   Currently, fonts for the devices `-Tps', `-Tdvi', and `-Tlbp' are
-set up to this mechanism.  By default, `gtroff' uses the Times family
-with the four styles `R', `I', `B', and `BI'.
-
-   This way, it is possible to use the basic four fonts and to select a
-different font family on the command line (*note Groff Options::).
-
- - Request: .fam [family]
- - Register: \n[.fam]
- - Escape: \Ff
- - Escape: \F(fm
- - Escape: \F[family]
- - Register: \n[.fn]
-     Switch font family to FAMILY (one-character name F, two-character
-     name FM).  If no argument is given, switch back to the previous
-     font family.  Use `\F[]' to do this with the escape.  Note that
-     `\FP' doesn't work; it selects font family `P' instead.
-
-     The value at start-up is `T'.  The current font family is
-     available in the read-only number register `.fam' (this is a
-     string-valued register); it is associated with the current
-     environment.
-
-
-          spam,
-          .fam H    \" helvetica family
-          spam,     \" used font is family H + style R = HR
-          .ft B     \" family H + style B = font HB
-          spam,
-          .fam T    \" times family
-          spam,     \" used font is family T + style B = TB
-          .ft AR    \" font AR (not a style)
-          baked beans,
-          .ft R     \" family T + style R = font TR
-          and spam.
-
-     Note that `\F' doesn't produce an input token in `gtroff'.  As a
-     consequence, it can be used in requests like `mc' (which expects a
-     single character as an argument) to change the font family on the
-     fly:
-
-
-          .mc \F[P]x\F[]
-
-     The `.fn' register contains the current "real font name" of the
-     current font.  This is a string-valued register.  If the current
-     font is a style, the value of `\n[.fn]' is the proper
-     concatenation of family and style name.
-
- - Request: .sty n style
-     Associate STYLE with font position N.  A font position can be
-     associated either with a font or with a style.  The current font
-     is the index of a font position and so is also either a font or a
-     style.  If it is a style, the font that is actually used is the
-     font which name is the concatenation of the name of the current
-     family and the name of the current style.  For example, if the
-     current font is 1 and font position 1 is associated with style `R'
-     and the current font family is `T', then font `TR' will be used.
-     If the current font is not a style, then the current family is
-     ignored.  If the requests `cs', `bd', `tkf', `uf', or `fspecial'
-     are applied to a style, they will instead be applied to the member
-     of the current family corresponding to that style.
-
-     N must be a non-negative integer value.
-
-     The default family can be set with the `-f' option (*note Groff
-     Options::).  The `styles' command in the `DESC' file controls
-     which font positions (if any) are initially associated with styles
-     rather than fonts.  For example, the default setting for
-     POSTSCRIPT fonts
-
-
-          styles R I B BI
-
-     is equivalent to
-
-
-          .sty 1 R
-          .sty 2 I
-          .sty 3 B
-          .sty 4 BI
-
-     `fam' and `\F' always check whether the current font position is
-     valid; this can give surprising results if the current font
-     position is associated with a style.
-
-     In the following example, we want to access the POSTSCRIPT font
-     `FooBar' from the font family `Foo':
-
-
-          .sty \n[.fp] Bar
-          .fam Foo
-              => warning: can't find font `FooR'
-
-     The default font position at start-up is 1; for the POSTSCRIPT
-     device, this is associated with style `R', so `gtroff' tries to
-     open `FooR'.
-
-     A solution to this problem is to use a dummy font like the
-     following:
-
-
-          .fp 0 dummy TR    \" set up dummy font at position 0
-          .sty \n[.fp] Bar  \" register style `Bar'
-          .ft 0             \" switch to font at position 0
-          .fam Foo          \" activate family `Foo'
-          .ft Bar           \" switch to font `FooBar'
-
-     *Note Font Positions::.
-
-
-File: groff,  Node: Font Positions,  Next: Using Symbols,  Prev: Font Families,  Up: Fonts and Symbols
-
-Font Positions
---------------
-
-   For the sake of old phototypesetters and compatibility with old
-versions of `troff', `gtroff' has the concept of font "positions", on
-which various fonts are mounted.
-
- - Request: .fp pos font [external-name]
- - Register: \n[.f]
- - Register: \n[.fp]
-     Mount font FONT at position POS (which must be a non-negative
-     integer).  This numeric position can then be referred to with font
-     changing commands.  When `gtroff' starts it is using font
-     position 1 (which must exist; position 0 is unused usually at
-     start-up).
-
-     The current font in use, as a font position, is available in the
-     read-only number register `.f'.  This can be useful to remember the
-     current font for later recall.  It is associated with the current
-     environment (*note Environments::).
-
-
-          .nr save-font \n[.f]
-          .ft B
-          ... text text text ...
-          .ft \n[save-font]
-
-     The number of the next free font position is available in the
-     read-only number register `.fp'.  This is useful when mounting a
-     new font, like so:
-
-
-          .fp \n[.fp] NEATOFONT
-
-     Fonts not listed in the `DESC' file are automatically mounted on
-     the next available font position when they are referenced.  If a
-     font is to be mounted explicitly with the `fp' request on an unused
-     font position, it should be mounted on the first unused font
-     position, which can be found in the `.fp' register.  Although
-     `gtroff' does not enforce this strictly, it is not allowed to
-     mount a font at a position whose number is much greater (approx.
-     1000 positions) than that of any currently used position.
-
-     The `fp' request has an optional third argument.  This argument
-     gives the external name of the font, which is used for finding the
-     font description file.  The second argument gives the internal
-     name of the font which is used to refer to the font in `gtroff'
-     after it has been mounted.  If there is no third argument then the
-     internal name is used as the external name.  This feature makes it
-     possible to use fonts with long names in compatibility mode.
-
-   Both the `ft' request and the `\f' escape have alternative syntax
-forms to access font positions.
-
- - Request: .ft nnn
- - Escape: \fn
- - Escape: \f(nn
- - Escape: \f[nnn]
-     Change the current font position to NNN (one-digit position N,
-     two-digit position NN), which must be a non-negative integer.
-
-     If NNN is associated with a style (as set with the `sty' request
-     or with the `styles' command in the `DESC' file), use it within
-     the current font family (as set with the `fam' request, the `\F'
-     escape, or with the `family' command in the `DESC' file).
-
-
-          this is font 1
-          .ft 2
-          this is font 2
-          .ft                   \" switch back to font 1
-          .ft 3
-          this is font 3
-          .ft
-          this is font 1 again
-
-     *Note Changing Fonts::, for the standard syntax form.
-
-
-File: groff,  Node: Using Symbols,  Next: Special Fonts,  Prev: Font Positions,  Up: Fonts and Symbols
-
-Using Symbols
--------------
-
-   A "glyph" is a graphical representation of a "character".  While a
-character is an abstract entity containing semantic information, a
-glyph is something which can be actually seen on screen or paper.  It
-is possible that a character has multiple glyph representation forms
-(for example, the character `A' can be either written in a roman or an
-italic font, yielding two different glyphs); sometimes more than one
-character maps to a single glyph (this is a "ligature" - the most
-common is `fi').
-
-   A "symbol" is simply a named glyph.  Within `gtroff', all glyph
-names of a particular font are defined in its font file.  If the user
-requests a glyph not available in this font, `gtroff' looks up an
-ordered list of "special fonts".  By default, the POSTSCRIPT output
-device supports the two special fonts `SS' (slanted symbols) and `S'
-(symbols) (the former is looked up before the latter).  Other output
-devices use different names for special fonts.  Fonts mounted with the
-`fonts' keyword in the `DESC' file are globally available.  To install
-additional special fonts locally (i.e. for a particular font), use the
-`fspecial' request.
-
-   Here the exact rules how `gtroff' searches a given symbol:
-
-   * If the symbol has been defined with the `char' request, use it.
-     This hides a symbol with the same name in the current font.
-
-   * Check the current font.
-
-   * If the symbol has been defined with the `fchar' request, use it.
-
-   * Check whether the current font has a font-specific list of special
-     fonts; test all fonts in the order of appearance in the last
-     `fspecial' call if appropriate.
-
-   * If the symbol has been defined with the `fschar' request for the
-     current font, use it.
-
-   * Check all fonts in the order of appearance in the last `special'
-     call.
-
-   * If the symbol has been defined with the `schar' request, use it.
-
-   * As a last resort, consult all fonts loaded up to now for special
-     fonts and check them, starting with the lowest font number.  Note
-     that this can sometimes lead to surprising results since the
-     `fonts' line in the `DESC' file often contains empty positions
-     which are filled later on.  For example, consider the following:
-
-
-          fonts 3 0 0 FOO
-
-     This mounts font `foo' at font position 3.  We assume that `FOO'
-     is a special font, containing glyph `foo', and that no font has
-     been loaded yet.  The line
-
-
-          .fspecial BAR BAZ
-
-     makes font `BAZ' special only if font `BAR' is active.  We further
-     assume that `BAZ' is really a special font, i.e., the font
-     description file contains the `special' keyword, and that it also
-     contains glyph `foo' with a special shape fitting to font `BAR'.
-     After executing `fspecial', font `BAR' is loaded at font
-     position 1, and `BAZ' at position 2.
-
-     We now switch to a new font `XXX', trying to access glyph `foo'
-     which is assumed to be missing.  There are neither font-specific
-     special fonts for `XXX' nor any other fonts made special with the
-     `special' request, so `gtroff' starts the search for special fonts
-     in the list of already mounted fonts, with increasing font
-     positions.  Consequently, it finds `BAZ' before `FOO' even for
-     `XXX' which is not the intended behaviour.
-
-   *Note Font Files::, and *Note Special Fonts::, for more details.
-
-   The list of available symbols is device dependent; see the
-`groff_char(7)' man page for a complete list of all glyphs.  For
-example, say
-
-
-     man -Tdvi groff_char > groff_char.dvi
-
-for a list using the default DVI fonts (not all versions of the `man'
-program support the `-T' option).  If you want to use an additional
-macro package to change the used fonts, `groff' must be called directly:
-
-
-     groff -Tdvi -mec -man groff_char.7 > groff_char.dvi
-
-   Glyph names not listed in groff_char(7) are derived algorithmically,
-using a simplified version of the Adobe Glyph List (AGL) algorithm
-described in
-`http://partners.adobe.com/asn/developer/typeforum/unicodegn.html'.
-The (frozen) set of glyph names which can't be derived algorithmically
-is called "groff glyph list (GGL)".
-
-   * A glyph for Unicode character U+XXXX[X[X]] which is not a
-     composite character will be named `uXXXX[X[X]]'.  X must be an
-     uppercase hexadecimal digit.  Examples: `u1234', `u008E',
-     `u12DB8'.  The largest Unicode value is 0x10FFFF.  There must be at
-     least four `X' digits; if necessary, add leading zeroes (after the
-     `u').  No zero padding is allowed for character codes greater than
-     0xFFFF.  Surrogates (i.e., Unicode values greater than 0xFFFF
-     represented with character codes from the surrogate area
-     U+D800-U+DFFF) are not allowed too.
-
-   * A glyph representing more than a single input character will be
-     named
-
-          `u' COMPONENT1 `_' COMPONENT2 `_' COMPONENT3 ...
-
-     Example: `u0045_0302_0301'.
-
-     For simplicity, all Unicode characters which are composites must be
-     decomposed maximally (this is normalization form D in the Unicode
-     standard); for example, `u00CA_0301' is not a valid glyph name
-     since U+00CA (LATIN CAPITAL LETTER E WITH CIRCUMFLEX) can be
-     further decomposed into U+0045 (LATIN CAPITAL LETTER E) and U+0302
-     (COMBINING CIRCUMFLEX ACCENT).  `u0045_0302_0301' is thus the
-     glyph name for U+1EBE, LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND
-     ACUTE.
-
-   * groff maintains a table to decompose all algorithmically derived
-     glyph names which are composites itself.  For example, `u0100'
-     (LATIN LETTER A WITH MACRON) will be automatically decomposed into
-     `u0041_0304'.  Additionally, a glyph name of the GGL is preferred
-     to an algorithmically derived glyph name; groff also automatically
-     does the mapping.  Example: The glyph `u0045_0302' will be mapped
-     to `^E'.
-
-   * glyph names of the GGL can't be used in composite glyph names; for
-     example, `^E_u0301' is invalid.
-
- - Escape: \(nm
- - Escape: \[name]
- - Escape: \[component1 component2 ...]
-     Insert a symbol NAME (two-character name NM) or a composite glyph
-     with component glyphs COMPONENT1, COMPONENT2, .... There is no
-     special syntax for one-character names - the natural form `\N'
-     would collide with escapes.(1) (*note Using Symbols-Footnote-1::)
-
-     If NAME is undefined, a warning of type `char' is generated, and
-     the escape is ignored.  *Note Debugging::, for information about
-     warnings.
-
-     groff resolves `\[...]' with more than a single component as
-     follows:
-
-        * Any component which is found in the GGL will be converted to
-          the `uXXXX' form.
-
-        * Any component `uXXXX' which is found in the list of
-          decomposable glyphs will be decomposed.
-
-        * The resulting elements are then concatenated with `_'
-          inbetween, dropping the leading `u' in all elements but the
-          first.
-
-     No check for the existence of any component (similar to `tr'
-     request) will be done.
-
-     Examples:
-
-    `\[A ho]'
-          `A' maps to `u0041', `ho' maps to `u02DB', thus the final
-          glyph name would be `u0041_02DB'.  Note this is not the
-          expected result: The ogonek glyph `ho' is a spacing ogonek,
-          but for a proper composite a non-spacing ogonek (U+0328) is
-          necessary.  Looking into the file `composite.tmac' one can
-          find `.composite ho u0328' which changes the mapping of `ho'
-          while a composite glyph name is constructed, causing the
-          final glyph name to be `u0041_0328'.
-
-    `\[^E u0301]'
-    `\[^E aa]'
-    `\[E a^ aa]'
-    `\[E ^ ']'
-          `^E' maps to `u0045_0302', thus the final glyph name is
-          `u0045_0302_0301' in all forms (assuming proper calls of the
-          `composite' request).
-
-     It is not possible to define glyphs with names like `A ho' within
-     a groff font file.  This is not really a limitation; instead, you
-     have to define `u0041_0328'.
-
- - Escape: \C'xxx'
-     Typeset the glyph named XXX.(2) (*note Using Symbols-Footnote-2::)
-     Normally it is more convenient to use `\[XXX]', but `\C' has the
-     advantage that it is compatible with newer versions of AT&T
-     `troff' and is available in compatibility mode.
-
- - Request: .composite from to
-     Map glyph name FROM to glyph name TO if it is used in `\[...]'
-     with more than one component.  See above for examples.
-
-     This mapping is based on glyph names only; no check for the
-     existence of either glyph is done.
-
-     A set of default mappings for many accents can be found in the file
-     `composite.tmac' which is loaded at start-up.
-
- - Escape: \N'n'
-     Typeset the glyph with code N in the current font (`n' is *not*
-     the input character code).  The number N can be any non-negative
-     decimal integer.  Most devices only have glyphs with codes between
-     0 and 255; the Unicode output device uses codes in the range
-     0-65535.  If the current font does not contain a glyph with that
-     code, special fonts are _not_ searched.  The `\N' escape sequence
-     can be conveniently used in conjunction with the `char' request:
-
-
-          .char \[phone] \f[ZD]\N'37'
-
-     The code of each glyph is given in the fourth column in the font
-     description file after the `charset' command.  It is possible to
-     include unnamed glyphs in the font description file by using a
-     name of `---'; the `\N' escape sequence is the only way to use
-     these.
-
-     No kerning is applied to glyphs accessed with `\N'.
-
-   Some escape sequences directly map onto special glyphs.
-
- - Escape: \'
-     This is a backslash followed by the apostrophe character, ASCII
-     character `0x27' (EBCDIC character `0x7D').  The same as `\[aa]',
-     the acute accent.
-
- - Escape: \`
-     This is a backslash followed by ASCII character `0x60' (EBCDIC
-     character `0x79' usually).  The same as `\[ga]', the grave accent.
-
- - Escape: \-
-     This is the same as `\[-]', the minus sign in the current font.
-
- - Request: .cflags n c1 c2 ...
-     Input characters and symbols have certain properties associated
-     with it.(3) (*note Using Symbols-Footnote-3::)  These properties
-     can be modified with the `cflags' request.  The first argument is
-     the sum of the desired flags and the remaining arguments are the
-     characters or symbols to have those properties.  It is possible to
-     omit the spaces between the characters or symbols.
-
-    `1'
-          The character ends sentences (initially characters `.?!' have
-          this property).
-
-    `2'
-          Lines can be broken before the character (initially no
-          characters have this property).
-
-    `4'
-          Lines can be broken after the character (initially the
-          character `-' and the symbols `\[hy]' and `\[em]' have this
-          property).
-
-    `8'
-          The character overlaps horizontally (initially the symbols
-          `\[ul]', `\[rn]', `\[ru]', `\[radicalex', and `\[sqrtex]'
-          have this property).
-
-    `16'
-          The character overlaps vertically (initially symbol `\[br]'
-          has this property).
-
-    `32'
-          An end-of-sentence character followed by any number of
-          characters with this property is treated as the end of a
-          sentence if followed by a newline or two spaces; in other
-          words the character is "transparent" for the purposes of
-          end-of-sentence recognition - this is the same as having a
-          zero space factor in TeX (initially characters `"')]*' and
-          the symbols `\[dg]' and `\[rq]' have this property).
-
- - Request: .char g [string]
- - Request: .fchar g [string]
- - Request: .fschar f g [string]
- - Request: .schar g [string]
-     Define a new glyph G to be STRING (which can be empty).(4) (*note
-     Using Symbols-Footnote-4::)  Every time glyph G needs to be
-     printed, STRING is processed in a temporary environment and the
-     result is wrapped up into a single object.  Compatibility mode is
-     turned off and the escape character is set to `\' while STRING is
-     being processed.  Any emboldening, constant spacing or track
-     kerning is applied to this object rather than to individual
-     characters in STRING.
-
-     A glyph defined by these requests can be used just like a normal
-     glyph provided by the output device.  In particular, other
-     characters can be translated to it with the `tr' or `trin'
-     requests; it can be made the leader character by the `lc' request;
-     repeated patterns can be drawn with the glyph using the `\l' and
-     `\L' escape sequences; words containing the glyph can be
-     hyphenated correctly if the `hcode' request is used to give the
-     glyph's symbol a hyphenation code.
-
-     There is a special anti-recursion feature: Use of `g' within the
-     glyph's definition is handled like normal characters and symbols
-     not defined with `char'.
-
-     Note that the `tr' and `trin' requests take precedence if `char'
-     accesses the same symbol.
-
-
-          .tr XY
-          X
-              => Y
-          .char X Z
-          X
-              => Y
-          .tr XX
-          X
-              => Z
-
-     The `fchar' request defines a fallback glyph: `gtroff' only checks
-     for glyphs defined with `fchar' if it cannot find the glyph in the
-     current font.  `gtroff' carries out this test before checking
-     special fonts.
-
-     `fschar' defines a fallback glyph for font F: `gtroff' checks for
-     glyphs defined with `fschar' after the list of fonts declared as
-     font-specific special fonts with the `fspecial' request, but
-     before the list of fonts declared as global special fonts with the
-     `special' request.
-
-     Finally, the `schar' request defines a global fallback glyph:
-     `gtroff' checks for glyphs defined with `schar' after the list of
-     fonts declared as global special fonts with the `special' request,
-     but before the already mounted special fonts.
-
-     *Note Using Symbols::, for a detailed description of the glyph
-     searching mechanism in `gtroff'.
-
- - Request: .rchar c1 c2 ...
- - Request: .rfschar f c1 c2 ...
-     Remove the definitions of glyphs C1, C2, ....  This undoes the
-     effect of a `char', `fchar', or `schar' request.
-
-     It is possible to omit the whitespace between arguments.
-
-     The request `rfschar' removes glyph definitions defined with
-     `fschar' for glyph f.
-
-   *Note Special Characters::.
-
-
-File: groff,  Node: Using Symbols-Footnotes,  Up: Using Symbols
-
-   (1) Note that a one-character symbol is not the same as an input
-character, i.e., the character `a' is not the same as `\[a]'.  By
-default, `groff' defines only a single one-character symbol, `\[-]'; it
-is usually accessed as `\-'.  On the other hand, `gtroff' has the
-special feature that `\[charXXX]' is the same as the input character
-with character code XXX.  For example, `\[char97]' is identical to the
-letter `a' if ASCII encoding is active.
-
-   (2) `\C' is actually a misnomer since it accesses an output glyph.
-
-   (3) Note that the output glyphs themselves don't have such
-properties.  For `gtroff', a glyph is a numbered box with a given
-width, depth, and height, nothing else.  All manipulations with the
-`cflags' request work on the input level.
-
-   (4) `char' is a misnomer since an output glyph is defined.
-
-
-File: groff,  Node: Special Fonts,  Next: Artificial Fonts,  Prev: Using Symbols,  Up: Fonts and Symbols
-
-Special Fonts
--------------
-
-   Special fonts are those that `gtroff' searches when it cannot find
-the requested glyph in the current font.  The Symbol font is usually a
-special font.
-
-   `gtroff' provides the following two requests to add more special
-fonts.  *Note Using Symbols::, for a detailed description of the glyph
-searching mechanism in `gtroff'.
-
-   Usually, only non-TTY devices have special fonts.
-
- - Request: .special [s1 s2 ...]
- - Request: .fspecial f [s1 s2 ...]
-     Use the `special' request to define special fonts.  Initially, this
-     list is empty.
-
-     Use the `fspecial' request to designate special fonts only when
-     font F is active.  Initially, this list is empty.
-
-     Previous calls to `special' or `fspecial' are overwritten; without
-     arguments, the particular list of special fonts is set to empty.
-     Special fonts are searched in the order they appear as arguments.
-
-     All fonts which appear in a call to `special' or `fspecial' are
-     loaded.
-
-     *Note Using Symbols::, for the exact search order of glyphs.
-
-
-File: groff,  Node: Artificial Fonts,  Next: Ligatures and Kerning,  Prev: Special Fonts,  Up: Fonts and Symbols
-
-Artificial Fonts
-----------------
-
-   There are a number of requests and escapes for artificially creating
-fonts.  These are largely vestiges of the days when output devices did
-not have a wide variety of fonts, and when `nroff' and `troff' were
-separate programs.  Most of them are no longer necessary in GNU
-`troff'.  Nevertheless, they are supported.
-
- - Escape: \H'height'
- - Escape: \H'+height'
- - Escape: \H'-height'
- - Register: \n[.height]
-     Change (increment, decrement) the height of the current font, but
-     not the width.  If HEIGHT is zero, restore the original height.
-     Default scaling indicator is `z'.
-
-     The read-only number register `.height' contains the font height as
-     set by `\H'.
-
-     Currently, only the `-Tps' device supports this feature.
-
-     Note that `\H' doesn't produce an input token in `gtroff'.  As a
-     consequence, it can be used in requests like `mc' (which expects a
-     single character as an argument) to change the font on the fly:
-
-
-          .mc \H'+5z'x\H'0'
-
-     In compatibility mode, `gtroff' behaves differently:  If an
-     increment or decrement is used, it is always taken relative to the
-     current point size and not relative to the previously selected font
-     height.  Thus,
-
-
-          .cp 1
-          \H'+5'test \H'+5'test
-
-     prints the word `test' twice with the same font height (five
-     points larger than the current font size).
-
- - Escape: \S'slant'
- - Register: \n[.slant]
-     Slant the current font by SLANT degrees.  Positive values slant to
-     the right.  Only integer values are possible.
-
-     The read-only number register `.slant' contains the font slant as
-     set by `\S'.
-
-     Currently, only the `-Tps' device supports this feature.
-
-     Note that `\S' doesn't produce an input token in `gtroff'.  As a
-     consequence, it can be used in requests like `mc' (which expects a
-     single character as an argument) to change the font on the fly:
-
-
-          .mc \S'20'x\S'0'
-
-     This request is incorrectly documented in the original UNIX troff
-     manual; the slant is always set to an absolute value.
-
- - Request: .ul [lines]
-     The `ul' request normally underlines subsequent lines if a TTY
-     output device is used.  Otherwise, the lines are printed in italics
-     (only the term `underlined' is used in the following).  The single
-     argument is the number of input lines to be underlined; with no
-     argument, the next line is underlined.  If LINES is zero or
-     negative, stop the effects of `ul' (if it was active).  Requests
-     and empty lines do not count for computing the number of underlined
-     input lines, even if they produce some output like `tl'.  Lines
-     inserted by macros (e.g. invoked by a trap) do count.
-
-     At the beginning of `ul', the current font is stored and the
-     underline font is activated.  Within the span of a `ul' request,
-     it is possible to change fonts, but after the last line affected by
-     `ul' the saved font is restored.
-
-     This number of lines still to be underlined is associated with the
-     current environment (*note Environments::).  The underline font
-     can be changed with the `uf' request.
-
-     The `ul' request does not underline spaces.
-
- - Request: .cu [lines]
-     The `cu' request is similar to `ul' but underlines spaces as well
-     (if a TTY output device is used).
-
- - Request: .uf font
-     Set the underline font (globally) used by `ul' and `cu'.  By
-     default, this is the font at position 2.  FONT can be either a
-     non-negative font position or the name of a font.
-
- - Request: .bd font [offset]
- - Request: .bd font1 font2 [offset]
- - Register: \n[.b]
-     Artificially create a bold font by printing each glyph twice,
-     slightly offset.
-
-     Two syntax forms are available.
-
-        * Imitate a bold font unconditionally.  The first argument
-          specifies the font to embolden, and the second is the number
-          of basic units, minus one, by which the two glyphs are
-          offset.  If the second argument is missing, emboldening is
-          turned off.
-
-          FONT can be either a non-negative font position or the name
-          of a font.
-
-          OFFSET is available in the `.b' read-only register if a
-          special font is active; in the `bd' request, its default unit
-          is `u'.
-
-        * Imitate a bold form conditionally.  Embolden FONT1 by OFFSET
-          only if font FONT2 is the current font.  This command can be
-          issued repeatedly to set up different emboldening values for
-          different current fonts.  If the second argument is missing,
-          emboldening is turned off for this particular current font.
-
-          This affects special fonts only (either set up with the
-          `special' command in font files or with the `fspecial'
-          request).
-
- - Request: .cs font [width [em-size]]
-     Switch to and from "constant glyph space mode".  If activated, the
-     width of every glyph is WIDTH/36 ems.  The em size is given
-     absolutely by EM-SIZE; if this argument is missing, the em value
-     is taken from the current font size (as set with the `ps' request)
-     when the font is effectively in use.  Without second and third
-     argument, constant glyph space mode is deactivated.
-
-     Default scaling indicator for EM-SIZE is `z'; WIDTH is an integer.
-
-
-File: groff,  Node: Ligatures and Kerning,  Prev: Artificial Fonts,  Up: Fonts and Symbols
-
-Ligatures and Kerning
----------------------
-
-   Ligatures are groups of characters that are run together, i.e,
-producing a single glyph.  For example, the letters `f' and `i' can
-form a ligature `fi' as in the word `file'.  This produces a cleaner
-look (albeit subtle) to the printed output.  Usually, ligatures are not
-available in fonts for TTY output devices.
-
-   Most POSTSCRIPT fonts support the fi and fl ligatures.  The C/A/T
-typesetter that was the target of AT&T `troff' also supported `ff',
-`ffi', and `ffl' ligatures.  Advanced typesetters or `expert' fonts may
-include ligatures for `ft' and `ct', although GNU `troff' does not
-support these (yet).
-
-   Only the current font is checked for ligatures and kerns; neither
-special fonts nor entities defined with the `char' request (and its
-siblings) are taken into account.
-
- - Request: .lg [flag]
- - Register: \n[.lg]
-     Switch the ligature mechanism on or off; if the parameter is
-     non-zero or missing, ligatures are enabled, otherwise disabled.
-     Default is on.  The current ligature mode can be found in the
-     read-only number register `.lg' (set to 1 or 2 if ligatures are
-     enabled, 0 otherwise).
-
-     Setting the ligature mode to 2 enables the two-character ligatures
-     (fi, fl, and ff) and disables the three-character ligatures (ffi
-     and ffl).
-
-   "Pairwise kerning" is another subtle typesetting mechanism that
-modifies the distance between a glyph pair to improve readability.  In
-most cases (but not always) the distance is decreased.  Typewriter-like
-fonts and fonts for terminals where all glyphs have the same width
-don't use kerning.
-
- - Request: .kern [flag]
- - Register: \n[.kern]
-     Switch kerning on or off.  If the parameter is non-zero or missing,
-     enable pairwise kerning, otherwise disable it.  The read-only
-     number register `.kern' is set to 1 if pairwise kerning is enabled,
-     0 otherwise.
-
-     If the font description file contains pairwise kerning information,
-     glyphs from that font are kerned.  Kerning between two glyphs can
-     be inhibited by placing `\&' between them: `V\&A'.
-
-     *Note Font File Format::.
-
-   "Track kerning" expands or reduces the space between glyphs.  This
-can be handy, for example, if you need to squeeze a long word onto a
-single line or spread some text to fill a narrow column.  It must be
-used with great care since it is usually considered bad typography if
-the reader notices the effect.
-
- - Request: .tkf f s1 n1 s2 n2
-     Enable track kerning for font F.  If the current font is F the
-     width of every glyph is increased by an amount between N1 and N2
-     (N1, N2 can be negative); if the current point size is less than
-     or equal to S1 the width is increased by N1; if it is greater than
-     or equal to S2 the width is increased by N2; if the point size is
-     greater than or equal to S1 and less than or equal to S2 the
-     increase in width is a linear function of the point size.
-
-     The default scaling indicator is `z' for S1 and S2, `p' for N1 and
-     N2.
-
-     Note that the track kerning amount is added even to the rightmost
-     glyph in a line; for large values it is thus recommended to
-     increase the line length by the same amount to compensate it.
-
-   Sometimes, when typesetting letters of different fonts, more or less
-space at such boundaries are needed.  There are two escapes to help
-with this.
-
- - Escape: \/
-     Increase the width of the preceding glyph so that the spacing
-     between that glyph and the following glyph is correct if the
-     following glyph is a roman glyph.  For example, if an italic `f'
-     is immediately followed by a roman right parenthesis, then in many
-     fonts the top right portion of the `f' overlaps the top left of
-     the right parenthesis.  Use this escape sequence whenever an
-     italic glyph is immediately followed by a roman glyph without any
-     intervening space.  This small amount of space is also called
-     "italic correction".
-
-
- - Escape: \,
-     Modify the spacing of the following glyph so that the spacing
-     between that glyph and the preceding glyph is correct if the
-     preceding glyph is a roman glyph.  Use this escape sequence
-     whenever a roman glyph is immediately followed by an italic glyph
-     without any intervening space.  In analogy to above, this space
-     could be called "left italic correction", but this term isn't used
-     widely.
-
-
- - Escape: \&
-     Insert a zero-width character, which is invisible.  Its intended
-     use is to stop interaction of a character with its surrounding.
-
-        * It prevents the insertion of extra space after an
-          end-of-sentence character.
-
-
-               Test.
-               Test.
-                   => Test.  Test.
-               Test.\&
-               Test.
-                   => Test. Test.
-
-        * It prevents interpretation of a control character at the
-          beginning of an input line.
-
-
-               .Test
-                   => warning: `Test' not defined
-               \&.Test
-                   => .Test
-
-        * It prevents kerning between two glyphs.
-
-        * It is needed to map an arbitrary character to nothing in the
-          `tr' request (*note Character Translations::).
-
- - Escape: \)
-     This escape is similar to `\&' except that it behaves like a
-     character declared with the `cflags' request to be transparent for
-     the purposes of an end-of-sentence character.
-
-     Its main usage is in macro definitions to protect against arguments
-     starting with a control character.
-
-
-          .de xxx
-          \)\\$1
-          ..
-          .de yyy
-          \&\\$1
-          ..
-          This is a test.\c
-          .xxx '
-          This is a test.
-              =>This is a test.'  This is a test.
-          This is a test.\c
-          .yyy '
-          This is a test.
-              =>This is a test.' This is a test.
-
-
-
-File: groff,  Node: Sizes,  Next: Strings,  Prev: Fonts and Symbols,  Up: gtroff Reference
-
-Sizes
-=====
-
-   `gtroff' uses two dimensions with each line of text, type size and
-vertical spacing.  The "type size" is approximately the height of the
-tallest glyph.(1) (*note Sizes-Footnote-1::)  "Vertical spacing" is the
-amount of space `gtroff' allows for a line of text; normally, this is
-about 20% larger than the current type size.  Ratios smaller than this
-can result in hard-to-read text; larger than this, it spreads the text
-out more vertically (useful for term papers).  By default, `gtroff'
-uses 10 point type on 12 point spacing.
-
-   The difference between type size and vertical spacing is known, by
-typesetters, as "leading" (this is pronounced `ledding').
-
-* Menu:
-
-* Changing Type Sizes::
-* Fractional Type Sizes::
-
-
-File: groff,  Node: Sizes-Footnotes,  Up: Sizes
-
-   (1) This is usually the parenthesis.  Note that in most cases the
-real dimensions of the glyphs in a font are _not_ related to its type
-size!  For example, the standard POSTSCRIPT font families `Times
-Roman', `Helvetica', and `Courier' can't be used together at 10pt; to
-get acceptable output, the size of `Helvetica' has to be reduced by one
-point, and the size of `Courier' must be increased by one point.
-
diff --git a/contrib/groff/doc/groff-6 b/contrib/groff/doc/groff-6
deleted file mode 100644
index f7f01e1..0000000
--- a/contrib/groff/doc/groff-6
+++ /dev/null
@@ -1,1462 +0,0 @@
-This is groff, produced by makeinfo version 4.3d from ./groff.texinfo.
-
-This manual documents GNU `troff' version 1.19.
-
-   Copyright (C) 1994-2000, 2001, 2002, 2003 Free Software Foundation,
-Inc.
-
-     Permission is granted to copy, distribute and/or modify this
-     document under the terms of the GNU Free Documentation License,
-     Version 1.1 or any later version published by the Free Software
-     Foundation; with no Invariant Sections, with the Front-Cover texts
-     being `A GNU Manual," and with the Back-Cover Texts as in (a)
-     below.  A copy of the license is included in the section entitled
-     `GNU Free Documentation License."
-
-     (a) The FSF's Back-Cover Text is: `You have freedom to copy and
-     modify this GNU Manual, like GNU software.  Copies published by
-     the Free Software Foundation raise funds for GNU development."
-   
-INFO-DIR-SECTION Typesetting
-START-INFO-DIR-ENTRY
-* Groff: (groff).               The GNU troff document formatting system.
-END-INFO-DIR-ENTRY
-
-
-File: groff,  Node: Changing Type Sizes,  Next: Fractional Type Sizes,  Prev: Sizes,  Up: Sizes
-
-Changing Type Sizes
--------------------
-
- - Request: .ps [size]
- - Request: .ps +size
- - Request: .ps -size
- - Escape: \ssize
- - Register: \n[.s]
-     Use the `ps' request or the `\s' escape to change (increase,
-     decrease) the type size (in points).  Specify SIZE as either an
-     absolute point size, or as a relative change from the current size.
-     The size 0, or no argument, goes back to the previous size.
-
-     Default scaling indicator of `size' is `z'.  If `size' is zero or
-     negative, it is set to 1u.
-
-     The read-only number register `.s' returns the point size in
-     points as a decimal fraction.  This is a string.  To get the point
-     size in scaled points, use the `.ps' register instead.
-
-     `.s' is associated with the current environment (*note
-     Environments::).
-
-
-          snap, snap,
-          .ps +2
-          grin, grin,
-          .ps +2
-          wink, wink, \s+2nudge, nudge,\s+8 say no more!
-          .ps 10
-
-     The `\s' escape may be called in a variety of ways.  Much like
-     other escapes there must be a way to determine where the argument
-     ends and the text begins.  Any of the following forms are valid:
-
-    `\sN'
-          Set the point size to N points.  N must be either 0 or in the
-          range 4 to 39.
-
-    `\s+N'
-    `\s-N'
-          Increase or decrease the point size by N points.  N must be
-          exactly one digit.
-
-    `\s(NN'
-          Set the point size to NN points.  NN must be exactly two
-          digits.
-
-    `\s+(NN'
-    `\s-(NN'
-    `\s(+NN'
-    `\s(-NN'
-          Increase or decrease the point size by NN points.  NN must be
-          exactly two digits.
-
-     Note that `\s' doesn't produce an input token in `gtroff'.  As a
-     consequence, it can be used in requests like `mc' (which expects a
-     single character as an argument) to change the font on the fly:
-
-
-          .mc \s[20]x\s[0]
-
-     *Note Fractional Type Sizes::, for yet another syntactical form of
-     using the `\s' escape.
-
- - Request: .sizes s1 s2 ... sn [0]
-     Some devices may only have certain permissible sizes, in which case
-     `gtroff' rounds to the nearest permissible size.  The `DESC' file
-     specifies which sizes are permissible for the device.
-
-     Use the `sizes' request to change the permissible sizes for the
-     current output device.  Arguments are in scaled points; the
-     `sizescale' line in the `DESC' file for the output device provides
-     the scaling factor.  For example, if the scaling factor is 1000,
-     then the value 12000 is 12 points.
-
-     Each argument can be a single point size (such as `12000'), or a
-     range of sizes (such as `4000-72000').  You can optionally end the
-     list with a zero.
-
- - Request: .vs [space]
- - Request: .vs +space
- - Request: .vs -space
- - Register: \n[.v]
-     Change (increase, decrease) the vertical spacing by SPACE.  The
-     default scaling indicator is `p'.
-
-     If `vs' is called without an argument, the vertical spacing is
-     reset to the previous value before the last call to `vs'.
-
-     `gtroff' creates a warning of type `range' if SPACE is negative;
-     the vertical spacing is then set to the vertical resolution (as
-     given in the `.V' register).
-
-     The read-only number register `.v' contains the current vertical
-     spacing; it is associated with the current environment (*note
-     Environments::).
-
-   The effective vertical line spacing consists of four components.
-
-   * The vertical line spacing as set with the `vs' request.
-
-   * The "post-vertical line spacing" as set with the `pvs' request.
-     This is vertical space which will be added after a line has been
-     output.
-
-   * The "extra pre-vertical line space" as set with the `\x' request,
-     using a negative value.  This is vertical space which will be
-     added once before the current line has been output.
-
-   * The "extra post-vertical line space" as set with the `\x' request,
-     using a positive value.  This is vertical space which will be
-     added once after the current line has been output.
-
-   It is usually better to use `vs' or `pvs' instead of `ls' to produce
-double-spaced documents: `vs' and `pvs' have a finer granularity for
-the inserted vertical space compared to `ls'; furthermore, certain
-preprocessors assume single-spacing.
-
-   *Note Manipulating Spacing::, for more details on the `\x' escape
-and the `ls' request.
-
- - Request: .pvs [space]
- - Request: .pvs +space
- - Request: .pvs -space
- - Register: \n[.pvs]
-     Change (increase, decrease) the post-vertical spacing by SPACE.
-     The default scaling indicator is `p'.
-
-     If `pvs' is called without an argument, the post-vertical spacing
-     is reset to the previous value before the last call to `pvs'.
-
-     `gtroff' creates a warning of type `range' if SPACE is zero or
-     negative; the vertical spacing is then set to zero.
-
-     The read-only number register `.pvs' contains the current
-     post-vertical spacing; it is associated with the current
-     environment (*note Environments::).
-
-
-File: groff,  Node: Fractional Type Sizes,  Prev: Changing Type Sizes,  Up: Sizes
-
-Fractional Type Sizes
----------------------
-
-   A "scaled point" is equal to 1/SIZESCALE points, where SIZESCALE is
-specified in the `DESC' file (1 by default).  There is a new scale
-indicator `z' which has the effect of multiplying by SIZESCALE.
-Requests and escape sequences in `gtroff' interpret arguments that
-represent a point size as being in units of scaled points, but they
-evaluate each such argument using a default scale indicator of `z'.
-Arguments treated in this way are the argument to the `ps' request, the
-third argument to the `cs' request, the second and fourth arguments to
-the `tkf' request, the argument to the `\H' escape sequence, and those
-variants of the `\s' escape sequence that take a numeric expression as
-their argument (see below).
-
-   For example, suppose SIZESCALE is 1000; then a scaled point is
-equivalent to a millipoint; the request `.ps 10.25' is equivalent to
-`.ps 10.25z' and thus sets the point size to 10250 scaled points, which
-is equal to 10.25 points.
-
-   `gtroff' disallows the use of the `z' scale indicator in instances
-where it would make no sense, such as a numeric expression whose
-default scale indicator was neither `u' nor `z'.  Similarly it would
-make no sense to use a scaling indicator other than `z' or `u' in a
-numeric expression whose default scale indicator was `z', and so
-`gtroff' disallows this as well.
-
-   There is also new scale indicator `s' which multiplies by the number
-of units in a scaled point.  So, for example, `\n[.ps]s' is equal to
-`1m'.  Be sure not to confuse the `s' and `z' scale indicators.
-
- - Register: \n[.ps]
-     A read-only number register returning the point size in scaled
-     points.
-
-     `.ps' is associated with the current environment (*note
-     Environments::).
-
- - Register: \n[.psr]
- - Register: \n[.sr]
-     The last-requested point size in scaled points is contained in the
-     `.psr' read-only number register.  The last requested point size
-     in points as a decimal fraction can be found in `.sr'.  This is a
-     string-valued read-only number register.
-
-     Note that the requested point sizes are device-independent, whereas
-     the values returned by the `.ps' and `.s' registers are not.  For
-     example, if a point size of 11pt is requested, and a `sizes'
-     request (or a `sizescale' line in a `DESC' file) specifies 10.95pt
-     instead, this value is actually used.
-
-     Both registers are associated with the current environment (*note
-     Environments::).
-
-   The `\s' escape has the following syntax for working with fractional
-type sizes:
-
-`\s[N]'
-`\s'N''
-     Set the point size to N scaled points; N is a numeric expression
-     with a default scale indicator of `z'.
-
-`\s[+N]'
-`\s[-N]'
-`\s+[N]'
-`\s-[N]'
-`\s'+N''
-`\s'-N''
-`\s+'N''
-`\s-'N''
-     Increase or or decrease the point size by N scaled points; N is a
-     numeric expression with a default scale indicator of `z'.
-
-   *Note Font Files::.
-
-
-File: groff,  Node: Strings,  Next: Conditionals and Loops,  Prev: Sizes,  Up: gtroff Reference
-
-Strings
-=======
-
-   `gtroff' has string variables, which are entirely for user
-convenience (i.e. there are no built-in strings exept `.T', but even
-this is a read-write string variable).
-
- - Request: .ds name [string]
- - Request: .ds1 name [string]
- - Escape: \*n
- - Escape: \*(nm
- - Escape: \*[name arg1 arg2 ...]
-     Define and access a string variable NAME (one-character name N,
-     two-character name NM).  If NAME already exists, `ds' overwrites
-     the previous definition.  Only the syntax form using brackets can
-     take arguments which are handled identically to macro arguments;
-     the single exception is that a closing bracket as an argument must
-     be enclosed in double quotes.  *Note Request and Macro
-     Arguments::, and *Note Parameters::.
-
-     Example:
-
-
-          .ds foo a \\$1 test
-          .
-          This is \*[foo nice].
-              => This is a nice test.
-
-     The `\*' escape "interpolates" (expands in-place) a
-     previously-defined string variable.  To be more precise, the stored
-     string is pushed onto the input stack which is then parsed by
-     `gtroff'.  Similar to number registers, it is possible to nest
-     strings, i.e. string variables can be called within string
-     variables.
-
-     If the string named by the `\*' escape does not exist, it is
-     defined as empty, and a warning of type `mac' is emitted (see
-     *Note Debugging::, for more details).
-
-     *Caution:* Unlike other requests, the second argument to the `ds'
-     request takes up the entire line including trailing spaces.  This
-     means that comments on a line with such a request can introduce
-     unwanted space into a string.
-
-
-          .ds UX \s-1UNIX\s0\u\s-3tm\s0\d \" UNIX trademark
-
-     Instead the comment should be put on another line or have the
-     comment escape adjacent with the end of the string.
-
-
-          .ds UX \s-1UNIX\s0\u\s-3tm\s0\d\"  UNIX trademark
-
-     To produce leading space the string can be started with a double
-     quote.  No trailing quote is needed; in fact, any trailing quote is
-     included in your string.
-
-
-          .ds sign "           Yours in a white wine sauce,
-
-     Strings are not limited to a single line of text.  A string can
-     span several lines by escaping the newlines with a backslash.  The
-     resulting string is stored _without_ the newlines.
-
-
-          .ds foo lots and lots \
-          of text are on these \
-          next several lines
-
-     It is not possible to have real newlines in a string.  To put a
-     single double quote character into a string, use two consecutive
-     double quote characters.
-
-     The `ds1' request turns off compatibility mode while interpreting
-     a string.  To be more precise, a "compatibility save" input token
-     is inserted at the beginning of  the string, and a "compatibility
-     restore" input token at the end.
-
-
-          .nr xxx 12345
-          .ds aa The value of xxx is \\n[xxx].
-          .ds1 bb The value of xxx ix \\n[xxx].
-          .
-          .cp 1
-          .
-          \*(aa
-              => warning: number register `[' not defined
-              => The value of xxx is 0xxx].
-          \*(bb
-              => The value of xxx ix 12345.
-
-     Strings, macros, and diversions (and boxes) share the same name
-     space.  Internally, even the same mechanism is used to store them.
-     This has some interesting consequences.  For example, it is
-     possible to call a macro with string syntax and vice versa.
-
-
-          .de xxx
-          a funny test.
-          ..
-          This is \*[xxx]
-              => This is a funny test.
-          
-          .ds yyy a funny test
-          This is
-          .yyy
-              => This is a funny test.
-
-     Diversions and boxes can be also called with string syntax.
-
-     Another consequence is that you can copy one-line diversions or
-     boxes to a string.
-
-
-          .di xxx
-          a \fItest\fR
-          .br
-          .di
-          .ds yyy This is \*[xxx]\c
-          \*[yyy].
-              => This is a test.
-
-     As the previous example shows, it is possible to store formatted
-     output in strings.  The `\c' escape prevents the insertion of an
-     additional blank line in the output.
-
-     Copying diversions longer than a single output line produces
-     unexpected results.
-
-
-          .di xxx
-          a funny
-          .br
-          test
-          .br
-          .di
-          .ds yyy This is \*[xxx]\c
-          \*[yyy].
-              => test This is a funny.
-
-     Usually, it is not predictable whether a diversion contains one or
-     more output lines, so this mechanism should be avoided.  With UNIX
-     `troff', this was the only solution to strip off a final newline
-     from a diversion.  Another disadvantage is that the spaces in the
-     copied string are already formatted, making them unstretchable.
-     This can cause ugly results.
-
-     A clean solution to this problem is available in GNU `troff',
-     using the requests `chop' to remove the final newline of a
-     diversion, and `unformat' to make the horizontal spaces
-     stretchable again.
-
-
-          .box xxx
-          a funny
-          .br
-          test
-          .br
-          .box
-          .chop xxx
-          .unformat xxx
-          This is \*[xxx].
-              => This is a funny test.
-
-     *Note Gtroff Internals::, for more information.
-
- - Request: .as name [string]
- - Request: .as1 name [string]
-     The `as' request is similar to `ds' but appends STRING to the
-     string stored as NAME instead of redefining it.  If NAME doesn't
-     exist yet, it is created.
-
-
-          .as sign " with shallots, onions and garlic,
-
-     The `as1' request is similar to `as', but compatibility mode is
-     switched off while the appended string is interpreted.  To be more
-     precise, a "compatibility save" input token is inserted at the
-     beginning of the appended string, and a "compatibility restore"
-     input token at the end.
-
-   Rudimentary string manipulation routines are given with the next two
-requests.
-
- - Request: .substring str n1 [n2]
-     Replace the string named STR with the substring defined by the
-     indices N1 and N2.  The first character in the string has index 0.
-     If N2 is omitted, it is taken to be equal to the string's length.
-     If the index value N1 or N2 is negative, it is counted from the
-     end of the string, going backwards: The last character has
-     index -1, the character before the last character has index -2,
-     etc.
-
-
-          .ds xxx abcdefgh
-          .substring xxx 1 -4
-          \*[xxx]
-              => bcde
-
-
- - Request: .length reg str
-     Compute the number of characters of STR and return it in the
-     number register REG.  If REG doesn't exist, it is created.  `str'
-     is read in copy mode.
-
-
-          .ds xxx abcd\h'3i'efgh
-          .length yyy \*[xxx]
-          \n[yyy]
-              => 14
-
-
- - Request: .rn xx yy
-     Rename the request, macro, diversion, or string XX to YY.
-
- - Request: .rm xx
-     Remove the request, macro, diversion, or string XX.  `gtroff'
-     treats subsequent invocations as if the object had never been
-     defined.
-
- - Request: .als new old
-     Create an alias named NEW for the request, string, macro, or
-     diversion object named OLD.  The new name and the old name are
-     exactly equivalent (it is similar to a hard rather than a soft
-     link). If OLD is undefined, `gtroff' generates a warning of type
-     `mac' and ignores the request.
-
- - Request: .chop xx
-     Remove (chop) the last character from the macro, string, or
-     diversion named XX.  This is useful for removing the newline from
-     the end of diversions that are to be interpolated as strings.
-     This command can be used repeatedly; see *Note Gtroff Internals::,
-     for details on nodes inserted additionally by `gtroff'.
-
-   *Note Identifiers::, and *Note Comments::.
-
-
-File: groff,  Node: Conditionals and Loops,  Next: Writing Macros,  Prev: Strings,  Up: gtroff Reference
-
-Conditionals and Loops
-======================
-
-* Menu:
-
-* Operators in Conditionals::
-* if-else::
-* while::
-
-
-File: groff,  Node: Operators in Conditionals,  Next: if-else,  Prev: Conditionals and Loops,  Up: Conditionals and Loops
-
-Operators in Conditionals
--------------------------
-
-   In `if' and `while' requests, there are several more operators
-available:
-
-`e'
-`o'
-     True if the current page is even or odd numbered (respectively).
-
-`n'
-     True if the document is being processed in nroff mode (i.e., the
-     `.nroff' command has been issued).
-
-`t'
-     True if the document is being processed in troff mode (i.e., the
-     `.troff' command has been issued).
-
-`v'
-     Always false.  This condition is for compatibility with other
-     `troff' versions only.
-
-`'XXX'YYY''
-     True if the string XXX is equal to the string YYY.  Other
-     characters can be used in place of the single quotes; the same set
-     of delimiters as for the `\D' escape is used (*note Escapes::).
-     `gtroff' formats the strings before being compared:
-
-
-          .ie "|"\fR|\fP" \
-          true
-          .el \
-          false
-              => true
-
-     The resulting motions, glyph sizes, and fonts have to match,(1)
-     (*note Operators in Conditionals-Footnote-1::) and not the
-     individual motion, size, and font requests.  In the previous
-     example, `|' and `\fR|\fP' both result in a roman `|' glyph with
-     the same point size and at the same location on the page, so the
-     strings are equal.  If `.ft I' had been added before the `.ie',
-     the result would be "false" because (the first) `|' produces an
-     italic `|' rather than a roman one.
-
-`r XXX'
-     True if there is a number register named XXX.
-
-`d XXX'
-     True if there is a string, macro, diversion, or request named XXX.
-
-`m XXX'
-     True if there is a color named XXX.
-
-`c G'
-     True if there is a glyph G available(2) (*note Operators in
-     Conditionals-Footnote-2::); G is either an ASCII character or a
-     special character (`\(GG' or `\[GGG]'); the condition is also true
-     if G has been defined by the `char' request.
-
-   Note that these operators can't be combined with other operators like
-`:' or `&'; only a leading `!' (without whitespace between the
-exclamation mark and the operator) can be used to negate the result.
-
-
-     .nr xxx 1
-     .ie !r xxx \
-     true
-     .el \
-     false
-         => false
-
-   A whitespace after `!' always evaluates to zero (this bizarre
-behaviour is due to compatibility with UNIX `troff').
-
-
-     .nr xxx 1
-     .ie ! r xxx \
-     true
-     .el \
-     false
-         => r xxx true
-
-   It is possible to omit the whitespace before the argument to the
-`r', `d', and `c' operators.
-
-   *Note Expressions::.
-
-
-File: groff,  Node: Operators in Conditionals-Footnotes,  Up: Operators in Conditionals
-
-   (1) The created output nodes must be identical.  *Note Gtroff
-Internals::.
-
-   (2) The name of this conditional operator is a misnomer since it
-tests names of output glyphs.
-
-
-File: groff,  Node: if-else,  Next: while,  Prev: Operators in Conditionals,  Up: Conditionals and Loops
-
-if-else
--------
-
-   `gtroff' has if-then-else constructs like other languages, although
-the formatting can be painful.
-
- - Request: .if expr anything
-     Evaluate the expression EXPR, and executes ANYTHING (the remainder
-     of the line) if EXPR evaluates to non-zero (true).  ANYTHING is
-     interpreted as though it was on a line by itself (except that
-     leading spaces are swallowed).  *Note Expressions::, for more info.
-
-
-          .nr xxx 1
-          .nr yyy 2
-          .if ((\n[xxx] == 1) & (\n[yyy] == 2)) true
-              => true
-
-
- - Request: .nop anything
-     Executes ANYTHING.  This is similar to `.if 1'.
-
- - Request: .ie expr anything
- - Request: .el anything
-     Use the `ie' and `el' requests to write an if-then-else.  The
-     first request is the `if' part and the latter is the `else' part.
-
-
-          .ie n .ls 2 \" double-spacing in nroff
-          .el   .ls 1 \" single-spacing in troff
-
-
- - Escape: \{
- - Escape: \}
-     In many cases, an if (or if-else) construct needs to execute more
-     than one request.  This can be done using the `\{' and `\}'
-     escapes.  The following example shows the possible ways to use
-     these escapes (note the position of the opening and closing
-     braces).
-
-
-          .ie t \{\
-          .    ds lq ``
-          .    ds rq ''
-          .\}
-          .el \
-          .\{\
-          .    ds lq "
-          .    ds rq "\}
-
-
-   *Note Expressions::.
-
-
-File: groff,  Node: while,  Prev: if-else,  Up: Conditionals and Loops
-
-while
------
-
-   `gtroff' provides a looping construct using the `while' request,
-which is used much like the `if' (and related) requests.
-
- - Request: .while expr anything
-     Evaluate the expression EXPR, and repeatedly execute ANYTHING (the
-     remainder of the line) until EXPR evaluates to 0.
-
-
-          .nr a 0 1
-          .while (\na < 9) \{\
-          \n+a,
-          .\}
-          \n+a
-              => 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
-
-     Some remarks.
-
-        * The body of a `while' request is treated like the body of a
-          `de' request: `gtroff' temporarily stores it in a macro which
-          is deleted after the loop has been exited.  It can
-          considerably slow down a macro if the body of the `while'
-          request (within the macro) is large.  Each time the macro is
-          executed, the `while' body is parsed and stored again as a
-          temporary macro.
-
-
-               .de xxx
-               .  nr num 10
-               .  while (\\n[num] > 0) \{\
-               .    \" many lines of code
-               .    nr num -1
-               .  \}
-               ..
-
-          The traditional and ofter better solution (UNIX `troff'
-          doesn't have the `while' request) is to use a recursive macro
-          instead which is parsed only once during its definition.
-
-
-               .de yyy
-               .  if (\\n[num] > 0) \{\
-               .    \" many lines of code
-               .    nr num -1
-               .    yyy
-               .  \}
-               ..
-               .
-               .de xxx
-               .  nr num 10
-               .  yyy
-               ..
-
-          Note that the number of available recursion levels is set
-          to 1000 (this is a compile-time constant value of `gtroff').
-
-        * The closing brace of a `while' body must end a line.
-
-
-               .if 1 \{\
-               .  nr a 0 1
-               .  while (\n[a] < 10) \{\
-               .    nop \n+[a]
-               .\}\}
-                   => unbalanced \{ \}
-
-
- - Request: .break
-     Break out of a `while' loop.  Be sure not to confuse this with the
-     `br' request (causing a line break).
-
- - Request: .continue
-     Finish the current iteration of a `while' loop, immediately
-     restarting the next iteration.
-
-   *Note Expressions::.
-
-
-File: groff,  Node: Writing Macros,  Next: Page Motions,  Prev: Conditionals and Loops,  Up: gtroff Reference
-
-Writing Macros
-==============
-
-   A "macro" is a collection of text and embedded commands which can be
-invoked multiple times.  Use macros to define common operations.
-
- - Request: .de name [end]
- - Request: .de1 name [end]
- - Request: .dei name [end]
-     Define a new macro named NAME.  `gtroff' copies subsequent lines
-     (starting with the next one) into an internal buffer until it
-     encounters the line `..' (two dots).  The optional second argument
-     to `de' changes this to a macro to `.END'.
-
-     There can be whitespace after the first dot in the line containing
-     the ending token (either `.' or macro `END').
-
-     Here a small example macro called `P' which causes a break and
-     inserts some vertical space.  It could be used to separate
-     paragraphs.
-
-
-          .de P
-          .  br
-          .  sp .8v
-          ..
-
-     The following example defines a macro within another.  Remember
-     that expansion must be protected twice; once for reading the macro
-     and once for executing.
-
-
-          \# a dummy macro to avoid a warning
-          .de end
-          ..
-          .
-          .de foo
-          .  de bar end
-          .    nop \f[B]Hallo \\\\$1!\f[]
-          .  end
-          ..
-          .
-          .foo
-          .bar Joe
-              => Hallo Joe!
-
-     Since `\f' has no expansion, it isn't necessary to protect its
-     backslash.  Had we defined another macro within `bar' which takes
-     a parameter, eight backslashes would be necessary before `$1'.
-
-     The `de1' request turns off compatibility mode while executing the
-     macro.  On entry, the current compatibility mode is saved and
-     restored at exit.
-
-
-          .nr xxx 12345
-          .
-          .de aa
-          The value of xxx is \\n[xxx].
-          ..
-          .de1 bb
-          The value of xxx ix \\n[xxx].
-          ..
-          .
-          .cp 1
-          .
-          .aa
-              => warning: number register ' not defined
-              => The value of xxx is 0xxx].
-          .bb
-              => The value of xxx ix 12345.
-
-     The `dei' request defines a macro indirectly.  That is, it expands
-     strings whose names are NAME or END before performing the append.
-
-     This:
-
-
-          .ds xx aa
-          .ds yy bb
-          .dei xx yy
-
-     is equivalent to:
-
-
-          .de aa bb
-
-     Using `trace.tmac', you can trace calls to `de' and `de1'.
-
-     Note that macro identifiers are shared with identifiers for
-     strings and diversions.
-
- - Request: .am name [end]
- - Request: .am1 name [end]
- - Request: .ami name [end]
-     Works similarly to `de' except it appends onto the macro named
-     NAME.  So, to make the previously defined `P' macro actually do
-     indented instead of block paragraphs, add the necessary code to the
-     existing macro like this:
-
-
-          .am P
-          .ti +5n
-          ..
-
-     The `am1' request turns off compatibility mode while executing the
-     appended macro piece.  To be more precise, a "compatibility save"
-     input token is inserted at the beginning of the appended code, and
-     a "compatibility restore" input token at the end.
-
-     The `ami' request appends indirectly, meaning that `gtroff'
-     expands strings whose names are NAME or END before performing the
-     append.
-
-     Using `trace.tmac', you can trace calls to `am' and `am1'.
-
-   *Note Strings::, for the `als' request to rename a macro.
-
-   The `de', `am', `di', `da', `ds', and `as' requests (together with
-its variants) only create a new object if the name of the macro,
-diversion or string diversion is currently undefined or if it is
-defined to be a request; normally they modify the value of an existing
-object.
-
- - Request: .return
-     Exit a macro, immediately returning to the caller.
-
-* Menu:
-
-* Copy-in Mode::
-* Parameters::
-
-
-File: groff,  Node: Copy-in Mode,  Next: Parameters,  Prev: Writing Macros,  Up: Writing Macros
-
-Copy-in Mode
-------------
-
-   When `gtroff' reads in the text for a macro, string, or diversion,
-it copies the text (including request lines, but excluding escapes) into
-an internal buffer.  Escapes are converted into an internal form,
-except for `\n', `\$', `\*', `\\' and `\<RET>' which are evaluated and
-inserted into the text where the escape was located.  This is known as
-"copy-in" mode or "copy" mode.
-
-   What this means is that you can specify when these escapes are to be
-evaluated (either at copy-in time or at the time of use) by insulating
-the escapes with an extra backslash.  Compare this to the `\def' and
-`\edef' commands in TeX.
-
-   The following example prints the numbers 20 and 10:
-
-
-     .nr x 20
-     .de y
-     .nr x 10
-     \&\nx
-     \&\\nx
-     ..
-     .y
-
-
-File: groff,  Node: Parameters,  Prev: Copy-in Mode,  Up: Writing Macros
-
-Parameters
-----------
-
-   The arguments to a macro or string can be examined using a variety of
-escapes.
-
- - Register: \n[.$]
-     The number of arguments passed to a macro or string.  This is a
-     read-only number register.
-
-   Any individual argument can be retrieved with one of the following
-escapes:
-
- - Escape: \$n
- - Escape: \$(nn
- - Escape: \$[nnn]
-     Retrieve the Nth, NNth or NNNth argument.  As usual, the first
-     form only accepts a single number (larger than zero), the second a
-     two-digit number (larger or equal to 10), and the third any
-     positive integer value (larger than zero).  Macros and strings can
-     have an unlimited number of arguments.  Note that due to copy-in
-     mode, use two backslashes on these in actual use to prevent
-     interpolation until the macro is actually invoked.
-
- - Request: .shift [n]
-     Shift the arguments 1 position, or as many positions as specified
-     by its argument.  After executing this request, argument I becomes
-     argument I-N; arguments 1 to N are no longer available.  Shifting
-     by negative amounts is currently undefined.
-
- - Escape: \$*
- - Escape: \$@
-     In some cases it is convenient to use all of the arguments at once
-     (for example, to pass the arguments along to another macro).  The
-     `\$*' escape concatenates all the arguments separated by spaces.  A
-     similar escape is `\$@', which concatenates all the arguments with
-     each surrounded by double quotes, and separated by spaces.  If not
-     in compatibility mode, the input level of double quotes is
-     preserved (see *Note Request and Macro Arguments::).
-
- - Escape: \$0
-     The name used to invoke the current macro.  The `als' request can
-     make a macro have more than one name.
-
-
-          .de generic-macro
-          .  ...
-          .  if \\n[error] \{\
-          .    tm \\$0: Houston, we have a problem.
-          .    return
-          .  \}
-          ..
-          .
-          .als foo generic-macro
-          .als bar generic-macro
-
-
-   *Note Request and Macro Arguments::.
-
-
-File: groff,  Node: Page Motions,  Next: Drawing Requests,  Prev: Writing Macros,  Up: gtroff Reference
-
-Page Motions
-============
-
-   *Note Manipulating Spacing::, for a discussion of the main request
-for vertical motion, `sp'.
-
- - Request: .mk [reg]
- - Request: .rt [dist]
-     The request `mk' can be used to mark a location on a page, for
-     movement to later.  This request takes a register name as an
-     argument in which to store the current page location.  With no
-     argument it stores the location in an internal register.  The
-     results of this can be used later by the `rt' or the `sp' request
-     (or the `\v' escape).
-
-     The `rt' request returns _upwards_ to the location marked with the
-     last `mk' request.  If used with an argument, return to a position
-     which distance from the top of the page is DIST (no previous call
-     to `mk' is necessary in this case).  Default scaling indicator is
-     `v'.
-
-     Here a primitive solution for a two-column macro.
-
-
-          .nr column-length 1.5i
-          .nr column-gap 4m
-          .nr bottom-margin 1m
-          .
-
-
-          .de 2c
-          .  br
-          .  mk
-          .  ll \\n[column-length]u
-          .  wh -\\n[bottom-margin]u 2c-trap
-          .  nr right-side 0
-          ..
-          .
-
-
-          .de 2c-trap
-          .  ie \\n[right-side] \{\
-          .    nr right-side 0
-          .    po -(\\n[column-length]u + \\n[column-gap]u)
-          .    \" remove trap
-          .    wh -\\n[bottom-margin]u
-          .  \}
-          .  el \{\
-          .    \" switch to right side
-          .    nr right-side 1
-          .    po +(\\n[column-length]u + \\n[column-gap]u)
-          .    rt
-          .  \}
-          ..
-          .
-
-
-          .pl 1.5i
-          .ll 4i
-          This is a small test which shows how the
-          rt request works in combination with mk.
-          
-          .2c
-          Starting here, text is typeset in two columns.
-          Note that this implementation isn't robust
-          and thus not suited for a real two-column
-          macro.
-
-     Result:
-
-
-          This is a small test which shows how the
-          rt request works in combination with mk.
-          
-          Starting  here,    isn't    robust
-          text is typeset    and   thus  not
-          in two columns.    suited  for   a
-          Note that  this    real two-column
-          implementation     macro.
-
-
-   The following escapes give fine control of movements about the page.
-
- - Escape: \v'e'
-     Move vertically, usually from the current location on the page (if
-     no absolute position operator `|' is used).  The argument E
-     specifies the distance to move; positive is downwards and negative
-     upwards.  The default scaling indicator for this escape is `v'.
-     Beware, however, that `gtroff' continues text processing at the
-     point where the motion ends, so you should always balance motions
-     to avoid interference with text processing.
-
-     `\v' doesn't trigger a trap.  This can be quite useful; for
-     example, consider a page bottom trap macro which prints a marker
-     in the margin to indicate continuation of a footnote or something
-     similar.
-
-   There are some special-case escapes for vertical motion.
-
- - Escape: \r
-     Move upwards 1v.
-
- - Escape: \u
-     Move upwards .5v.
-
- - Escape: \d
-     Move down .5v.
-
- - Escape: \h'e'
-     Move horizontally, usually from the current location (if no
-     absolute position operator `|' is used).  The expression E
-     indicates how far to move: positive is rightwards and negative
-     leftwards.  The default scaling indicator for this escape is `m'.
-
-     This horizontal space is not discarded at the end of a line.  To
-     insert discardable space of a certain length use the `ss' request.
-
-   There are a number of special-case escapes for horizontal motion.
-
- - Escape: \<SP>
-     An unbreakable and unpaddable (i.e. not expanded during filling)
-     space.  (Note: This is a backslash followed by a space.)
-
- - Escape: \~
-     An unbreakable space that stretches like a normal inter-word space
-     when a line is adjusted.
-
- - Escape: \|
-     A 1/6th em space.  Ignored for TTY output devices (rounded to
-     zero).
-
- - Escape: \^
-     A 1/12th em space.  Ignored for TTY output devices (rounded to
-     zero).
-
- - Escape: \0
-     A space the size of a digit.
-
-   The following string sets the TeX logo:
-
-
-     .ds TeX T\h'-.1667m'\v'.224m'E\v'-.224m'\h'-.125m'X
-
- - Escape: \w'text'
- - Register: \n[st]
- - Register: \n[sb]
- - Register: \n[rst]
- - Register: \n[rsb]
- - Register: \n[ct]
- - Register: \n[ssc]
- - Register: \n[skw]
-     Return the width of the specified TEXT in basic units.  This
-     allows horizontal movement based on the width of some arbitrary
-     text (e.g. given as an argument to a macro).
-
-
-          The length of the string `abc' is \w'abc'u.
-              => The length of the string `abc' is 72u.
-
-     Font changes may occur in TEXT which don't affect current settings.
-
-     After use, `\w' sets several registers:
-
-    `st'
-    `sb'
-          The highest and lowest point of the baseline, respectively,
-          in TEXT.
-
-    `rst'
-    `rsb'
-          Like the `st' and `sb' registers, but takes account of the
-          heights and depths of glyphs.  With other words, this gives
-          the highest and lowest point of TEXT.  Values below the
-          baseline are negative.
-
-    `ct'
-          Defines the kinds of glyphs occurring in TEXT:
-
-         0
-               only short glyphs, no descenders or tall glyphs.
-
-         1
-               at least one descender.
-
-         2
-               at least one tall glyph.
-
-         3
-               at least one each of a descender and a tall glyph.
-
-    `ssc'
-          The amount of horizontal space (possibly negative) that
-          should be added to the last glyph before a subscript.
-
-    `skw'
-          How far to right of the center of the last glyph in the `\w'
-          argument, the center of an accent from a roman font should be
-          placed over that glyph.
-
- - Escape: \kp
- - Escape: \k(ps
- - Escape: \k[position]
-     Store the current horizontal position in the _input_ line in
-     number register with name POSITION (one-character name P,
-     two-character name PS).  Use this, for example, to return to the
-     beginning of a string for highlighting or other decoration.
-
- - Register: \n[hp]
-     The current horizontal position at the input line.
-
- - Register: \n[.k]
-     A read-only number register containing the current horizontal
-     output position.
-
- - Escape: \o'abc'
-     Overstrike glyphs A, B, C, ...; the glyphs are centered, and the
-     resulting spacing is the largest width of the affected glyphs.
-
- - Escape: \zg
-     Print glyph G with zero width, i.e., without spacing.  Use this to
-     overstrike glyphs left-aligned.
-
- - Escape: \Z'anything'
-     Print ANYTHING, then restore the horizontal and vertical position.
-     The argument may not contain tabs or leaders.
-
-     The following is an example of a strike-through macro:
-
-
-          .de ST
-          .nr ww \w'\\$1'
-          \Z@\v'-.25m'\l'\\n[ww]u'@\\$1
-          ..
-          .
-          This is
-          .ST "a test"
-          an actual emergency!
-
-
-
-File: groff,  Node: Drawing Requests,  Next: Traps,  Prev: Page Motions,  Up: gtroff Reference
-
-Drawing Requests
-================
-
-   `gtroff' provides a number of ways to draw lines and other figures
-on the page.  Used in combination with the page motion commands (see
-*Note Page Motions::, for more info), a wide variety of figures can be
-drawn.  However, for complex drawings these operations can be quite
-cumbersome, and it may be wise to use graphic preprocessors like `gpic'
-or `ggrn'.  *Note gpic::, and *Note ggrn::, for more information.
-
-   All drawing is done via escapes.
-
- - Escape: \l'l'
- - Escape: \l'lg'
-     Draw a line horizontally.  L is the length of the line to be
-     drawn.  If it is positive, start the line at the current location
-     and draw to the right; its end point is the new current location.
-     Negative values are handled differently: The line starts at the
-     current location and draws to the left, but the current location
-     doesn't move.
-
-     L can also be specified absolutely (i.e. with a leading `|') which
-     draws back to the beginning of the input line.  Default scaling
-     indicator is `m'.
-
-     The optional second parameter G is a glyph to draw the line with.
-     If this second argument is not specified, `gtroff' uses the
-     underscore glyph, `\[ru]'.
-
-     To separate the two arguments (to prevent `gtroff' from
-     interpreting a drawing glyph as a scaling indicator if the glyph is
-     represented by a single character) use `\&'.
-
-     Here a small useful example:
-
-
-          .de box
-          \[br]\\$*\[br]\l'|0\[rn]'\l'|0\[ul]'
-          ..
-
-     Note that this works by outputting a box rule (a vertical line),
-     then the text given as an argument and then another box rule.
-     Finally, the line drawing escapes both draw from the current
-     location to the beginning of the _input_ line - this works because
-     the line length is negative, not moving the current point.
-
- - Escape: \L'l'
- - Escape: \L'lg'
-     Draw vertical lines.  Its parameters are similar to the `\l'
-     escape, except that the default scaling indicator is `v'.  The
-     movement is downwards for positive values, and upwards for
-     negative values.  The default glyph is the box rule glyph,
-     `\[br]'.  As with the vertical motion escapes, text processing
-     blindly continues where the line ends.
-
-
-          This is a \L'3v'test.
-
-     Here the result, produced with `grotty'.
-
-
-          This is a
-                    |
-                    |
-                    |test.
-
-
- - Escape: \D'command arg ...'
-     The `\D' escape provides a variety of drawing functions.  Note
-     that on character devices, only vertical and horizontal lines are
-     supported within `grotty'; other devices may only support a subset
-     of the available drawing functions.
-
-     The default scaling indicator for all subcommands of `\D' is `m'
-     for horizontal distances and `v' for vertical ones.  Exceptions
-     are `\D'f ...'' and `\D't ...'' which use `u' as the default, and
-     `\D'FX ...'' which arguments are treated similar to the `defcolor'
-     request.
-
-    `\D'l DX DY''
-          Draw a line from the current location to the relative point
-          specified by (DX,DY).
-
-          The following example is a macro for creating a box around a
-          text string; for simplicity, the box margin is taken as a
-          fixed value, 0.2m.
-
-
-               .de BOX
-               .  nr @wd \w'\\$1'
-               \h'.2m'\
-               \h'-.2m'\v'(.2m - \\n[rsb]u)'\
-               \D'l 0 -(\\n[rst]u - \\n[rsb]u + .4m)'\
-               \D'l (\\n[@wd]u + .4m) 0'\
-               \D'l 0 (\\n[rst]u - \\n[rsb]u + .4m)'\
-               \D'l -(\\n[@wd]u + .4m) 0'\
-               \h'.2m'\v'-(.2m - \\n[rsb]u)'\
-               \\$1\
-               \h'.2m'
-               ..
-
-          First, the width of the string is stored in register `@wd'.
-          Then, four lines are drawn to form a box, properly offset by
-          the box margin.  The registers `rst' and `rsb' are set by the
-          `\w' escape, containing the largest height and depth of the
-          whole string.
-
-    `\D'c D''
-          Draw a circle with a diameter of D with the leftmost point at
-          the current position.  After drawing, the current location is
-          positioned at the rightmost point of the circle.
-
-    `\D'C D''
-          Draw a solid circle with the same parameters and behaviour as
-          an outlined circle.  No outline is drawn.
-
-    `\D'e X Y''
-          Draw an ellipse with a horizontal diameter of X and a vertical
-          diameter of Y with the leftmost point at the current position.
-          After drawing, the current location is positioned at the
-          rightmost point of the ellipse.
-
-    `\D'E X Y''
-          Draw a solid ellipse with the same parameters and behaviour
-          as an outlined ellipse.  No outline is drawn.
-
-    `\D'a DX1 DY1 DX2 DY2''
-          Draw an arc clockwise from the current location through the
-          two specified relative locations (DX1,DY1) and (DX2,DY2).
-          The coordinates of the first point are relative to the
-          current position, and the coordinates of the second point are
-          relative to the first point.  After drawing, the current
-          position is moved to the final point of the arc.
-
-    `\D'~ DX1 DY1 DX2 DY2 ...''
-          Draw a spline from the current location to the relative point
-          (DX1,DY1) and then to (DX2,DY2), and so on.  The current
-          position is moved to the terminal point of the drawn curve.
-
-    `\D'f N''
-          Set the shade of gray to be used for filling solid objects
-          to N; N must be an integer between 0 and 1000, where 0
-          corresponds solid white and 1000 to solid black, and values
-          in between correspond to intermediate shades of gray.  This
-          applies only to solid circles, solid ellipses, and solid
-          polygons.  By default, a level of 1000 is used.
-
-          Despite of being silly, the current point is moved
-          horizontally to the right by N.
-
-          Don't use this command!  It has the serious drawback that it
-          will be always rounded to the next integer multiple of the
-          horizontal resolution (the value of the `hor' keyword in the
-          `DESC' file).  Use `\M' (*note Colors::) or `\D'Fg ...''
-          instead.
-
-    `\D'p DX1 DY1 DX2 DY2 ...''
-          Draw a polygon from the current location to the relative
-          position (DX1,DY1) and then to (DX2,DY2) and so on.  When the
-          specified data points are exhausted, a line is drawn back to
-          the starting point.  The current position is changed by
-          adding the sum of all arguments with odd index to the actual
-          horizontal position and the even ones to the vertical
-          position.
-
-    `\D'P DX1 DY1 DX2 DY2 ...''
-          Draw a solid polygon with the same parameters and behaviour
-          as an outlined polygon.  No outline is drawn.
-
-          Here a better variant of the box macro to fill the box with
-          some color.  Note that the box must be drawn before the text
-          since colors in `gtroff' are not transparent; the filled
-          polygon would hide the text completely.
-
-
-               .de BOX
-               .  nr @wd \w'\\$1'
-               \h'.2m'\
-               \h'-.2m'\v'(.2m - \\n[rsb]u)'\
-               \M[lightcyan]\
-               \D'P 0 -(\\n[rst]u - \\n[rsb]u + .4m) \
-                    (\\n[@wd]u + .4m) 0 \
-                    0 (\\n[rst]u - \\n[rsb]u + .4m) \
-                    -(\\n[@wd]u + .4m) 0'\
-               \h'.2m'\v'-(.2m - \\n[rsb]u)'\
-               \M[]\
-               \\$1\
-               \h'.2m'
-               ..
-
-    `\D't N''
-          Set the current line thickness to N machine units.  A value of
-          zero selects the smallest available line thickness.  A
-          negative value makes the line thickness proportional to the
-          current point size (this is the default behaviour of AT&T
-          `troff').
-
-          Despite of being silly, the current point is moved
-          horizontally to the right by N.
-
-    `\D'FSCHEME COLOR_COMPONENTS''
-          Change current fill color.  SCHEME is a single letter
-          denoting the color scheme: `r' (rgb), `c' (cmy), `k' (cmyk),
-          `g' (gray), or `d' (default color).  The color components use
-          exactly the same syntax as in the `defcolor' request (*note
-          Colors::); the command `\D'Fd'' doesn't take an argument.
-
-          _No_ position changing!
-
-          Examples:
-
-
-          \D'Fg .3'      \" same gray as \D'f 700' \D'Fr #0000ff' \"
-          blue
-
-   *Note Graphics Commands::.
-
- - Escape: \b'string'
-     "Pile" a sequence of glyphs vertically, and center it vertically
-     on the current line.  Use it to build large brackets and braces.
-
-     Here an example how to create a large opening brace:
-
-
-          \b'\[lt]\[bv]\[lk]\[bv]\[lb]'
-
-     The first glyph is on the top, the last glyph in STRING is at the
-     bottom.  Note that `gtroff' separates the glyphs vertically by 1m,
-     and the whole object is centered 0.5m above the current baseline;
-     the largest glyph width is used as the width for the whole object.
-     This rather unflexible positioning algorithm doesn't work with
-     `-Tdvi' since the bracket pieces vary in height for this device.
-     Instead, use the `eqn' preprocessor.
-
-     *Note Manipulating Spacing::, how to adjust the vertical spacing
-     with the `\x' escape.
-
-
-File: groff,  Node: Traps,  Next: Diversions,  Prev: Drawing Requests,  Up: gtroff Reference
-
-Traps
-=====
-
-   "Traps" are locations, which, when reached, call a specified macro.
-These traps can occur at a given location on the page, at a given
-location in the current diversion, at a blank line, after a certain
-number of input lines, or at the end of input.
-
-   Setting a trap is also called "planting".  It is also said that a
-trap is "sprung" if the associated macro is executed.
-
-* Menu:
-
-* Page Location Traps::
-* Diversion Traps::
-* Input Line Traps::
-* Blank Line Traps::
-* End-of-input Traps::
-
diff --git a/contrib/groff/doc/groff-7 b/contrib/groff/doc/groff-7
deleted file mode 100644
index edf7290..0000000
--- a/contrib/groff/doc/groff-7
+++ /dev/null
@@ -1,1460 +0,0 @@
-This is groff, produced by makeinfo version 4.3d from ./groff.texinfo.
-
-This manual documents GNU `troff' version 1.19.
-
-   Copyright (C) 1994-2000, 2001, 2002, 2003 Free Software Foundation,
-Inc.
-
-     Permission is granted to copy, distribute and/or modify this
-     document under the terms of the GNU Free Documentation License,
-     Version 1.1 or any later version published by the Free Software
-     Foundation; with no Invariant Sections, with the Front-Cover texts
-     being `A GNU Manual," and with the Back-Cover Texts as in (a)
-     below.  A copy of the license is included in the section entitled
-     `GNU Free Documentation License."
-
-     (a) The FSF's Back-Cover Text is: `You have freedom to copy and
-     modify this GNU Manual, like GNU software.  Copies published by
-     the Free Software Foundation raise funds for GNU development."
-   
-INFO-DIR-SECTION Typesetting
-START-INFO-DIR-ENTRY
-* Groff: (groff).               The GNU troff document formatting system.
-END-INFO-DIR-ENTRY
-
-
-File: groff,  Node: Page Location Traps,  Next: Diversion Traps,  Prev: Traps,  Up: Traps
-
-Page Location Traps
--------------------
-
-   "Page location traps" perform an action when `gtroff' reaches or
-passes a certain vertical location on the page.  Page location traps
-have a variety of purposes, including:
-
-   * setting headers and footers
-
-   * setting body text in multiple columns
-
-   * setting footnotes
-
- - Request: .vpt flag
- - Register: \n[.vpt]
-     Enable vertical position traps if FLAG is non-zero, or disables
-     them otherwise.  Vertical position traps are traps set by the `wh'
-     or `dt' requests.  Traps set by the `it' request are not vertical
-     position traps.  The parameter that controls whether vertical
-     position traps are enabled is global.  Initially vertical position
-     traps are enabled.  The current setting of this is available in the
-     `.vpt' read-only number register.
-
-     Note that a page can't be ejected if `vpt' is set to zero.
-
- - Request: .wh dist [macro]
-     Set a page location trap.  Non-negative values for DIST set the
-     trap relative to the top of the page; negative values set the trap
-     relative to the bottom of the page.  Default scaling indicator is
-     `v'.
-
-     MACRO is the name of the macro to execute when the trap is sprung.
-     If MACRO is missing, remove the first trap (if any) at DIST.
-
-     The following is a simple example of how many macro packages set
-     headers and footers.
-
-
-          .de hd                \" Page header
-          '  sp .5i
-          .  tl 'Title''date'
-          '  sp .3i
-          ..
-          .
-          .de fo                \" Page footer
-          '  sp 1v
-          .  tl ''%''
-          '  bp
-          ..
-          .
-          .wh 0   hd            \" trap at top of the page
-          .wh -1i fo            \" trap one inch from bottom
-
-     A trap at or below the bottom of the page is ignored; it can be
-     made active by either moving it up or increasing the page length
-     so that the trap is on the page.
-
-     It is possible to have more than one trap at the same location; to
-     do so, the traps must be defined at different locations, then
-     moved together with the `ch' request; otherwise the second trap
-     would replace the first one.  Earlier defined traps hide later
-     defined traps if moved to the same position (the many empty lines
-     caused by the `bp' request are omitted in the following example):
-
-
-          .de a
-          .  nop a
-          ..
-          .de b
-          .  nop b
-          ..
-          .de c
-          .  nop c
-          ..
-          .
-          .wh 1i a
-          .wh 2i b
-          .wh 3i c
-          .bp
-              => a b c
-
-
-          .ch b 1i
-          .ch c 1i
-          .bp
-              => a
-
-
-          .ch a 0.5i
-          .bp
-              => a b
-
-
- - Register: \n[.t]
-     A read-only number register holding the distance to the next trap.
-
-     If there are no traps between the current position and the bottom
-     of the page, it contains the distance to the page bottom.  In a
-     diversion, the distance to the page bottom is infinite (the
-     returned value is the biggest integer which can be represented in
-     `groff') if there are no diversion traps.
-
- - Request: .ch macro [dist]
-     Change the location of a trap.  The first argument is the name of
-     the macro to be invoked at the trap, and the second argument is
-     the new location for the trap (note that the parameters are
-     specified in opposite order as in the `wh' request).  This is
-     useful for building up footnotes in a diversion to allow more
-     space at the bottom of the page for them.
-
-     Default scaling indicator for DIST is `v'.  If DIST is missing,
-     the trap is removed.
-
-
- - Register: \n[.ne]
-     The read-only number register `.ne' contains the amount of space
-     that was needed in the last `ne' request that caused a trap to be
-     sprung.  Useful in conjunction with the `.trunc' register.  *Note
-     Page Control::, for more information.
-
-     Since the `.ne' register is only set by traps it doesn't make much
-     sense to use it outside of trap macros.
-
- - Register: \n[.trunc]
-     A read-only register containing the amount of vertical space
-     truncated by the most recently sprung vertical position trap, or,
-     if the trap was sprung by an `ne' request, minus the amount of
-     vertical motion produced by the `ne' request.  In other words, at
-     the point a trap is sprung, it represents the difference of what
-     the vertical position would have been but for the trap, and what
-     the vertical position actually is.
-
-     Since the `.trunc' register is only set by traps and it doesn't
-     make much sense to use it outside of trap macros.
-
- - Register: \n[.pe]
-     A read-only register which is set to 1 while a page is ejected with
-     the `bp' request (or by the end of input).
-
-     Outside of traps this register is always zero.  In the following
-     example, only the second call to `x' is caused by `bp'.
-
-
-          .de x
-          \&.pe=\\n[.pe]
-          .br
-          ..
-          .wh 1v x
-          .wh 4v x
-          A line.
-          .br
-          Another line.
-          .br
-              => A line.
-                        .pe=0
-                        Another line.
-          
-                        .pe=1
-
-
-   An important fact to consider while designing macros is that
-diversions and traps do not interact normally.  For example, if a trap
-invokes a header macro (while outputting a diversion) which tries to
-change the font on the current page, the effect will not be visible
-before the diversion has completely been printed (except for input
-protected with `\!' or `\?') since the data in the diversion is already
-formatted.  In most cases, this is not the expected behaviour.
-
-
-File: groff,  Node: Diversion Traps,  Next: Input Line Traps,  Prev: Page Location Traps,  Up: Traps
-
-Diversion Traps
----------------
-
- - Request: .dt dist macro
-     Set a trap _within_ a diversion.  DIST is the location of the trap
-     (identical to the `wh' request; default scaling indicator is `v')
-     and MACRO is the name of the macro to be invoked.  The number
-     register `.t' still works within diversions.  *Note Diversions::,
-     for more information.
-
-
-File: groff,  Node: Input Line Traps,  Next: Blank Line Traps,  Prev: Diversion Traps,  Up: Traps
-
-Input Line Traps
-----------------
-
- - Request: .it n macro
- - Request: .itc n macro
-     Set an input line trap.  N is the number of lines of input which
-     may be read before springing the trap, MACRO is the macro to be
-     invoked.  Request lines are not counted as input lines.
-
-     For example, one possible use is to have a macro which prints the
-     next N lines in a bold font.
-
-
-          .de B
-          .  it \\$1 B-end
-          .  ft B
-          ..
-          .
-          .de B-end
-          .  ft R
-          ..
-
-     The `itc' request is identical except that an interrupted text
-     line (ending with `\c') is not counted as a separate line.
-
-     Both requests are associated with the current environment (*note
-     Environments::); switching to another environment disables the
-     current input trap, and going back reactivates it, restoring the
-     number of already processed lines.
-
-
-File: groff,  Node: Blank Line Traps,  Next: End-of-input Traps,  Prev: Input Line Traps,  Up: Traps
-
-Blank Line Traps
-----------------
-
- - Request: .blm macro
-     Set a blank line trap.  `gtroff' executes MACRO when it encounters
-     a blank line in the input file.
-
-
-File: groff,  Node: End-of-input Traps,  Prev: Blank Line Traps,  Up: Traps
-
-End-of-input Traps
-------------------
-
- - Request: .em macro
-     Set a trap at the end of input.  MACRO is executed after the last
-     line of the input file has been processed.
-
-     For example, if the document had to have a section at the bottom
-     of the last page for someone to approve it, the `em' request could
-     be used.
-
-
-          .de approval
-          .  ne 5v
-          .  sp |(\\n[.t] - 6v)
-          .  in +4i
-          .  lc _
-          .  br
-          Approved:\t\a
-          .  sp
-          Date:\t\t\a
-          ..
-          .
-          .em approval
-
-
-
-File: groff,  Node: Diversions,  Next: Environments,  Prev: Traps,  Up: gtroff Reference
-
-Diversions
-==========
-
-   In `gtroff' it is possible to "divert" text into a named storage
-area.  Due to the similarity to defining macros it is sometimes said to
-be stored in a macro.  This is used for saving text for output at a
-later time, which is useful for keeping blocks of text on the same
-page, footnotes, tables of contents, and indices.
-
-   For orthogonality it is said that `gtroff' is in the "top-level
-diversion" if no diversion is active (i.e., the data is diverted to the
-output device).
-
- - Request: .di macro
- - Request: .da macro
-     Begin a diversion.  Like the `de' request, it takes an argument of
-     a macro name to divert subsequent text into.  The `da' macro
-     appends to an existing diversion.
-
-     `di' or `da' without an argument ends the diversion.
-
- - Request: .box macro
- - Request: .boxa macro
-     Begin (or appends to) a diversion like the `di' and `da' requests.
-     The difference is that `box' and `boxa' do not include a
-     partially-filled line in the diversion.
-
-     Compare this:
-
-
-          Before the box.
-          .box xxx
-          In the box.
-          .br
-          .box
-          After the box.
-          .br
-              => Before the box.  After the box.
-          .xxx
-              => In the box.
-
-     with this:
-
-
-          Before the diversion.
-          .di yyy
-          In the diversion.
-          .br
-          .di
-          After the diversion.
-          .br
-              => After the diversion.
-          .yyy
-              => Before the diversion.  In the diversion.
-
-     `box' or `boxa' without an argument ends the diversion.
-
- - Register: \n[.z]
- - Register: \n[.d]
-     Diversions may be nested.  The read-only number register `.z'
-     contains the name of the current diversion (this is a string-valued
-     register).  The read-only number register `.d' contains the current
-     vertical place in the diversion.  If not in a diversion it is the
-     same as register `nl'.
-
- - Register: \n[.h]
-     The "high-water mark" on the current page.  It corresponds to the
-     text baseline of the lowest line on the page.  This is a read-only
-     register.
-
-
-          .tm .h==\n[.h], nl==\n[nl]
-              => .h==0, nl==-1
-          This is a test.
-          .br
-          .sp 2
-          .tm .h==\n[.h], nl==\n[nl]
-              => .h==40, nl==120
-
-     As can be seen in the previous example, empty lines are not
-     considered in the return value of the `.h' register.
-
- - Register: \n[dn]
- - Register: \n[dl]
-     After completing a diversion, the read-write number registers `dn'
-     and `dl' contain the vertical and horizontal size of the diversion.
-     Note that only the just processed lines are counted: For the
-     computation of `dn' and `dl', the requests `da' and `boxa' are
-     handled as if `di' and `box' had been used - lines which have been
-     already stored in a macro are not taken into account.
-
-
-          .\" Center text both horizontally & vertically
-          .
-          .\" Enclose macro definitions in .eo and .ec
-          .\" to avoid the doubling of the backslash
-          .eo
-          .\" macro .(c starts centering mode
-          .de (c
-          .  br
-          .  ev (c
-          .  evc 0
-          .  in 0
-          .  nf
-          .  di @c
-          ..
-
-
-          .\" macro .)c terminates centering mode
-          .de )c
-          .  br
-          .  ev
-          .  di
-          .  nr @s (((\n[.t]u - \n[dn]u) / 2u) - 1v)
-          .  sp \n[@s]u
-          .  ce 1000
-          .  @c
-          .  ce 0
-          .  sp \n[@s]u
-          .  br
-          .  fi
-          .  rr @s
-          .  rm @s
-          .  rm @c
-          ..
-          .\" End of macro definitions, restore escape mechanism
-          .ec
-
-
- - Escape: \!
- - Escape: \?anything\?
-     Prevent requests, macros, and escapes from being interpreted when
-     read into a diversion.  Both escapes take the given text and
-     "transparently" embed it into the diversion.  This is useful for
-     macros which shouldn't be invoked until the diverted text is
-     actually output.
-
-     The `\!' escape transparently embeds text up to and including the
-     end of the line.  The `\?' escape transparently embeds text until
-     the next occurrence of the `\?' escape.  Example:
-
-
-          \?ANYTHING\?
-
-     ANYTHING may not contain newlines; use `\!'  to embed newlines in
-     a diversion.  The escape sequence `\?' is also recognized in copy
-     mode and turned into a single internal code; it is this code that
-     terminates ANYTHING.  Thus the following example prints 4.
-
-
-          .nr x 1
-          .nf
-          .di d
-          \?\\?\\\\?\\\\\\\\nx\\\\?\\?\?
-          .di
-          .nr x 2
-          .di e
-          .d
-          .di
-          .nr x 3
-          .di f
-          .e
-          .di
-          .nr x 4
-          .f
-
-     Both escapes read the data in copy mode.
-
-     If `\!' is used in the top-level diversion, its argument is
-     directly embedded into the `gtroff' intermediate output.  This can
-     be used for example to control a postprocessor which processes the
-     data before it is sent to the device driver.
-
-     The `\?' escape used in the top-level diversion produces no output
-     at all; its argument is simply ignored.
-
- - Request: .output string
-     Emit STRING directly to the `gtroff' intermediate output (subject
-     to copy-mode interpretation); this is similar to `\!' used at the
-     top level.  An initial double quote in STRING is stripped off to
-     allow initial blanks.
-
-     This request can't be used before the first page has started - if
-     you get an error, simply insert `.br' before the `output' request.
-
-     Without argument, `output' is ignored.
-
-     Use with caution!  It is normally only needed for mark-up used by a
-     postprocessor which does something with the output before sending
-     it to the output device, filtering out STRING again.
-
- - Request: .asciify div
-     "Unformat" the diversion specified by DIV in such a way that ASCII
-     characters, characters translated with the `trin' request, space
-     characters, and some escape sequences that were formatted and
-     diverted are treated like ordinary input characters when the
-     diversion is reread.  It can be also used for gross hacks; for
-     example, the following sets register `n' to 1.
-
-
-          .tr @.
-          .di x
-          @nr n 1
-          .br
-          .di
-          .tr @@
-          .asciify x
-          .x
-
-     *Note Copy-in Mode::.
-
- - Request: .unformat div
-     Like `asciify', unformat the specified diversion.  However,
-     `unformat' only unformats spaces and tabs between words.
-     Unformatted tabs are treated as input tokens, and spaces are
-     stretchable again.
-
-     The vertical size of lines is not preserved; glyph information
-     (font, font size, space width, etc.) is retained.
-
-
-File: groff,  Node: Environments,  Next: Suppressing output,  Prev: Diversions,  Up: gtroff Reference
-
-Environments
-============
-
-   It happens frequently that some text should be printed in a certain
-format regardless of what may be in effect at the time, for example, in
-a trap invoked macro to print headers and footers.  To solve this
-`gtroff' processes text in "environments".  An environment contains
-most of the parameters that control text processing.  It is possible to
-switch amongst these environments; by default `gtroff' processes text
-in environment 0.  The following is the information kept in an
-environment.
-
-   * font parameters (size, family, style, glyph height and slant, space
-     and sentence space size)
-
-   * page parameters (line length, title length, vertical spacing, line
-     spacing, indentation, line numbering, centering, right-justifying,
-     underlining, hyphenation data)
-
-   * fill and adjust mode
-
-   * tab stops, tab and leader characters, escape character, no-break
-     and hyphen indicators, margin character data
-
-   * partially collected lines
-
-   * input traps
-
-   * drawing and fill colours
-
-   These environments may be given arbitrary names (see *Note
-Identifiers::, for more info).  Old versions of `troff' only had
-environments named `0', `1', and `2'.
-
- - Request: .ev [env]
- - Register: \n[.ev]
-     Switch to another environment.  The argument ENV is the name of
-     the environment to switch to.  With no argument, `gtroff' switches
-     back to the previous environment.  There is no limit on the number
-     of named environments; they are created the first time that they
-     are referenced.  The `.ev' read-only register contains the name or
-     number of the current environment.  This is a string-valued
-     register.
-
-     Note that a call to `ev' (with argument) pushes the previously
-     active environment onto a stack.  If, say, environments `foo',
-     `bar', and `zap' are called (in that order), the first `ev'
-     request without parameter switches back to environment `bar'
-     (which is popped off the stack), and a second call switches back
-     to environment `foo'.
-
-     Here is an example:
-
-
-          .ev footnote-env
-          .fam N
-          .ps 6
-          .vs 8
-          .ll -.5i
-          .ev
-          
-          ...
-          
-          .ev footnote-env
-          \(dg Note the large, friendly letters.
-          .ev
-
-
- - Request: .evc env
-     Copy the environment ENV into the current environment.
-
-     The following environment data is not copied:
-
-        * Partially filled lines.
-
-        * The status whether the previous line was interrupted.
-
-        * The number of lines still to center, or to right-justify, or
-          to underline (with or without underlined spaces); they are
-          set to zero.
-
-        * The status whether a temporary indent is active.
-
-        * Input traps and its associated data.
-
-        * Line numbering mode is disabled; it can be reactivated with
-          `.nm +0'.
-
-        * The number of consecutive hyphenated lines (set to zero).
-
- - Register: \n[.w]
- - Register: \n[.cht]
- - Register: \n[.cdp]
- - Register: \n[.csk]
-     The `\n[.w]' register contains the width of the last glyph added
-     to the current environment.
-
-     The `\n[.cht]' register contains the height of the last glyph
-     added to the current environment.
-
-     The `\n[.cdp]' register contains the depth of the last glyph added
-     to the current environment.  It is positive for glyphs extending
-     below the baseline.
-
-     The `\n[.csk]' register contains the "skew" (how far to the right
-     of the glyph's center that `gtroff' should place an accent) of the
-     last glyph added to the current environment.
-
- - Register: \n[.n]
-     The `\n[.n]' register contains the length of the previous output
-     line in the current environment.
-
-
-File: groff,  Node: Suppressing output,  Next: Colors,  Prev: Environments,  Up: gtroff Reference
-
-Suppressing output
-==================
-
- - Escape: \Onum
-     Disable or enable output depending on the value of NUM:
-
-    `\O0'
-          Disable any glyphs from being emitted to the device driver,
-          provided that the escape occurs at the outer level (see
-          `\O[3]' and `\O[4]').  Motion is not suppressed so
-          effectively `\O[0]' means _pen up_.
-
-    `\O1'
-          Enable output of glyphs, provided that the escape occurs at
-          the outer level.
-
-     `\O0' and `\O1' also reset the four registers `opminx', `opminy',
-     `opmaxx', and `opmaxy' to -1.  *Note Register Index::.  These four
-     registers mark the top left and bottom right hand corners of a box
-     which encompasses all written glyphs.
-
-     For example the input text:
-
-
-          Hello \O[0]world \O[1]this is a test.
-
-     produces the following output:
-
-
-          Hello       this is a test.
-
-    `\O2'
-          Provided that the escape occurs at the outer level, enable
-          output of glyphs and also write out to `stderr' the page
-          number and four registers encompassing the glyphs previously
-          written since the last call to `\O'.
-
-    `\O3'
-          Begin a nesting level.  At start-up, `gtroff' is at outer
-          level.
-
-    `\O4'
-          End a nesting level.
-
-    `\O[5PFILENAME]'
-          This escape is `grohtml' specific.  Provided that this escape
-          occurs at the outer nesting level write the `filename' to
-          `stderr'.  The position of the image, P, must be specified
-          and must be one of `l', `r', `c', or `i' (left, right,
-          centered, inline).  FILENAME will be associated with the
-          production of the next inline image.
-
-
-File: groff,  Node: Colors,  Next: I/O,  Prev: Suppressing output,  Up: gtroff Reference
-
-Colors
-======
-
- - Request: .color [n]
- - Register: \n[.color]
-     If N is missing or non-zero, activate colors (this is the default);
-     otherwise, turn it off.
-
-     The read-only number register `.color' is 1 if colors are active,
-     0 otherwise.
-
-     Internally, `color' sets a global flag; it does not produce a
-     token.  Similar to the `cp' request, you should use it at the
-     beginning of your document to control color output.
-
-     Colors can be also turned off with the `-c' command line option.
-
- - Request: .defcolor ident scheme color_components
-     Define color with name IDENT.  SCHEME can be one of  the following
-     values: `rgb' (three components), `cmy' (three components), `cmyk'
-     (four components), and `gray' or `grey' (one component).
-
-     Color components can be given either as a hexadecimal string or as
-     positive decimal integers in the range 0-65535.  A hexadecimal
-     string contains all color components concatenated.  It must start
-     with either `#' or `##'; the former specifies hex values in the
-     range 0-255 (which are internally multiplied by 257), the latter
-     in the range 0-65535.  Examples: `#FFC0CB' (pink), `##ffff0000ffff'
-     (magenta).  The default color name value is device-specific
-     (usually black).  It is possible that the default color for `\m'
-     and `\M' is not identical.
-
-     A new scaling indicator `f' has been introduced which multiplies
-     its value by 65536; this makes it convenient to specify color
-     components as fractions in the range 0 to 1 (1f equals 65536u).
-     Example:
-
-
-          .defcolor darkgreen rgb 0.1f 0.5f 0.2f
-
-     Note that `f' is the default scaling indicator for the `defcolor'
-     request, thus the above statement is equivalent to
-
-
-          .defcolor darkgreen rgb 0.1 0.5 0.2
-
-
- - Escape: \mc
- - Escape: \m(co
- - Escape: \m[color]
-     Set drawing color.  The following example shows how to turn the
-     next four words red.
-
-
-          \m[red]these are in red\m[] and these words are in black.
-
-     The escape `\m[]' returns to the previous color.
-
-     The drawing color is associated with the current environment
-     (*note Environments::).
-
-     Note that `\m' doesn't produce an input token in `gtroff'.  As a
-     consequence, it can be used in requests like `mc' (which expects a
-     single character as an argument) to change the color on the fly:
-
-
-          .mc \m[red]x\m[]
-
-
- - Escape: \Mc
- - Escape: \M(co
- - Escape: \M[color]
-     Set background color for filled objects drawn with the `\D'...''
-     commands.
-
-     A red ellipse can be created with the following code:
-
-
-          \M[red]\h'0.5i'\D'E 2i 1i'\M[]
-
-     The escape `\M[]' returns to the previous fill color.
-
-     The fill color is associated with the current environment (*note
-     Environments::).
-
-     Note that `\M' doesn't produce an input token in `gtroff'.
-
-
-File: groff,  Node: I/O,  Next: Postprocessor Access,  Prev: Colors,  Up: gtroff Reference
-
-I/O
-===
-
-   `gtroff' has several requests for including files:
-
- - Request: .so file
-     Read in the specified FILE and includes it in place of the `so'
-     request.  This is quite useful for large documents, e.g. keeping
-     each chapter in a separate file.  *Note gsoelim::, for more
-     information.
-
-     Since `gtroff' replaces the `so' request with the contents of
-     `file', it makes a difference whether the data is terminated with
-     a newline or not: Assuming that file `xxx' contains the word `foo'
-     without a final newline, this
-
-
-          This is
-          .so xxx
-          bar
-
-     yields `This is foobar'.
-
- - Request: .pso command
-     Read the standard output from the specified COMMAND and includes
-     it in place of the `pso' request.
-
-     This request causes an error if used in safer mode (which is the
-     default).  Use `groff''s or `troff''s `-U' option to activate
-     unsafe mode.
-
-     The comment regarding a final newline for the `so' request is valid
-     for `pso' also.
-
- - Request: .mso file
-     Identical to the `so' request except that `gtroff' searches for
-     the specified FILE in the same directories as macro files for the
-     the `-m' command line option.  If the file name to be included has
-     the form `NAME.tmac' and it isn't found, `mso' tries to include
-     `tmac.NAME' and vice versa.
-
- - Request: .trf file
- - Request: .cf file
-     Transparently output the contents of FILE.  Each line is output as
-     if it were preceded by `\!'; however, the lines are not subject to
-     copy mode interpretation.  If the file does not end with a newline,
-     then a newline is added (`trf' only).  For example, to define a
-     macro `x' containing the contents of file `f', use
-
-
-          .di x
-          .trf f
-          .di
-
-     Both `trf' and `cf', when used in a diversion, embeds an object in
-     the diversion which, when reread, causes the contents of FILE to
-     be transparently copied through to the output.  In UNIX `troff',
-     the contents of FILE is immediately copied through to the output
-     regardless of whether there is a current diversion; this behaviour
-     is so anomalous that it must be considered a bug.
-
-     While `cf' copies the contents of FILE completely unprocessed,
-     `trf' disallows characters such as NUL that are not valid `gtroff'
-     input characters (*note Identifiers::).
-
-     Both requests cause a line break.
-
- - Request: .nx [file]
-     Force `gtroff' to continue processing of the file specified as an
-     argument.  If no argument is given, immediately jump to the end of
-     file.
-
- - Request: .rd [prompt [arg1 arg2 ...]]
-     Read from standard input, and include what is read as though it
-     were part of the input file.  Text is read until a blank line is
-     encountered.
-
-     If standard input is a TTY input device (keyboard), write PROMPT
-     to standard error, followed by a colon (or send BEL for a beep if
-     no argument is given).
-
-     Arguments after PROMPT are available for the input.  For example,
-     the line
-
-
-          .rd data foo bar
-
-     with the input `This is \$2.' prints
-
-
-          This is bar.
-
-
-   Using the `nx' and `rd' requests, it is easy to set up form letters.
-The form letter template is constructed like this, putting the
-following lines into a file called `repeat.let':
-
-
-     .ce
-     \*(td
-     .sp 2
-     .nf
-     .rd
-     .sp
-     .rd
-     .fi
-     Body of letter.
-     .bp
-     .nx repeat.let
-
-When this is run, a file containing the following lines should be
-redirected in.  Note that requests included in this file are executed
-as though they were part of the form letter.  The last block of input
-is the `ex' request which tells `groff' to stop processing.  If this
-was not there, `groff' would not know when to stop.
-
-
-     Trent A. Fisher
-     708 NW 19th Av., #202
-     Portland, OR  97209
-     
-     Dear Trent,
-     
-     Len Adollar
-     4315 Sierra Vista
-     San Diego, CA  92103
-     
-     Dear Mr. Adollar,
-     
-     .ex
-
- - Request: .pi pipe
-     Pipe the output of `gtroff' to the shell command(s) specified by
-     PIPE.  This request must occur before `gtroff' has a chance to
-     print anything.
-
-     `pi' causes an error if used in safer mode (which is the default).
-     Use `groff''s or `troff''s `-U' option to activate unsafe mode.
-
-     Multiple calls to `pi' are allowed, acting as a chain.  For
-     example,
-
-
-          .pi foo
-          .pi bar
-          ...
-
-     is the same as `.pi foo | bar'.
-
-     Note that the intermediate output format of `gtroff' is piped to
-     the specified commands.  Consequently, calling `groff' without the
-     `-Z' option normally causes a fatal error.
-
- - Request: .sy cmds
- - Register: \n[systat]
-     Execute the shell command(s) specified by CMDS.  The output is not
-     saved anyplace, so it is up to the user to do so.
-
-     This request causes an error if used in safer mode (which is the
-     default).  Use `groff''s or `troff''s `-U' option to activate
-     unsafe mode.
-
-     For example, the following code fragment introduces the current
-     time into a document:
-
-
-          .sy perl -e 'printf ".nr H %d\\n.nr M %d\\n.nr S %d\\n",\
-                       (localtime(time))[2,1,0]' > /tmp/x\n[$$]
-          .so /tmp/x\n[$$]
-          .sy rm /tmp/x\n[$$]
-          \nH:\nM:\nS
-
-     Note that this works by having the `perl' script (run by `sy')
-     print out the `nr' requests which set the number registers `H',
-     `M', and `S', and then reads those commands in with the `so'
-     request.
-
-     For most practical purposes, the number registers `seconds',
-     `minutes', and `hours' which are initialized at start-up of
-     `gtroff' should be sufficient.  Use the `af' request to get a
-     formatted output:
-
-
-          .af hours 00
-          .af minutes 00
-          .af seconds 00
-          \n[hours]:\n[minutes]:\n[seconds]
-
-     The `systat' read-write number register contains the return value
-     of the `system()' function executed by the last `sy' request.
-
- - Request: .open stream file
- - Request: .opena stream file
-     Open the specified FILE for writing and associates the specified
-     STREAM with it.
-
-     The `opena' request is like `open', but if the file exists, append
-     to it instead of truncating it.
-
-     Both `open' and `opena' cause an error if used in safer mode
-     (which is the default).  Use `groff''s or `troff''s `-U' option to
-     activate unsafe mode.
-
- - Request: .write stream data
- - Request: .writec stream data
-     Write to the file associated with the specified STREAM.  The
-     stream must previously have been the subject of an open request.
-     The remainder of the line is interpreted as the `ds' request reads
-     its second argument: A leading `"' is stripped, and it is read in
-     copy-in mode.
-
-     The `writec' request is like `write', but only `write' appends a
-     newline to the data.
-
- - Request: .writem stream xx
-     Write the contents of the macro or string XX to the file
-     associated with the specified STREAM.
-
-     XX is read in copy mode, i.e., already formatted elements are
-     ignored.  Consequently, diversions must be unformatted with the
-     `asciify' request before calling `writem'.  Usually, this means a
-     loss of information.
-
- - Request: .close stream
-     Close the specified STREAM; the stream is no longer an acceptable
-     argument to the `write' request.
-
-     Here a simple macro to write an index entry.
-
-
-          .open idx test.idx
-          .
-          .de IX
-          .  write idx \\n[%] \\$*
-          ..
-          .
-          .IX test entry
-          .
-          .close idx
-
-
- - Escape: \Ve
- - Escape: \V(ev
- - Escape: \V[env]
-     Interpolate the contents of the specified environment variable ENV
-     (one-character name E, two-character name EV) as returned by the
-     function `getenv'.  `\V' is interpreted in copy-in mode.
-
-
-File: groff,  Node: Postprocessor Access,  Next: Miscellaneous,  Prev: I/O,  Up: gtroff Reference
-
-Postprocessor Access
-====================
-
-   There are two escapes which give information directly to the
-postprocessor.  This is particularly useful for embedding POSTSCRIPT
-into the final document.
-
- - Escape: \X'xxx'
-     Embeds its argument into the `gtroff' output preceded with `x X'.
-
-     The escapes `\&', `\)', `\%', and `\:' are ignored within `\X',
-     `\ ' and `\~' are converted to single space characters.  All other
-     escapes (except `\\' which produces a backslash) cause an error.
-
-     If the `use_charnames_in_special' keyword is set in the `DESC'
-     file, special characters no longer cause an error; the name XX is
-     represented as `\(XX)' in the `x X' output command.  Additionally,
-     the backslash is represented as `\\'.
-
-     `use_charnames_in_special' is currently used by `grohtml' only.
-
- - Escape: \Yn
- - Escape: \Y(nm
- - Escape: \Y[name]
-     This is approximately equivalent to `\X'\*[NAME]'' (one-character
-     name N, two-character name NM).  However, the contents of the
-     string or macro NAME are not interpreted; also it is permitted for
-     NAME to have been defined as a macro and thus contain newlines (it
-     is not permitted for the argument to `\X' to contain newlines).
-     The inclusion of newlines requires an extension to the UNIX `troff'
-     output format, and confuses drivers that do not know about this
-     extension (*note Device Control Commands::).
-
-   *Note Output Devices::.
-
-
-File: groff,  Node: Miscellaneous,  Next: Gtroff Internals,  Prev: Postprocessor Access,  Up: gtroff Reference
-
-Miscellaneous
-=============
-
-   This section documents parts of `gtroff' which cannot (yet) be
-categorized elsewhere in this manual.
-
- - Request: .nm [start [inc [space [indent]]]]
-     Print line numbers.  START is the line number of the _next_ output
-     line.  INC indicates which line numbers are printed.  For example,
-     the value 5 means to emit only line numbers which are multiples
-     of 5; this defaults to 1.  SPACE is the space to be left between
-     the number and the text; this defaults to one digit space.  The
-     fourth argument is the indentation of the line numbers, defaulting
-     to zero.  Both SPACE and INDENT are given as multiples of digit
-     spaces; they can be negative also.  Without any arguments, line
-     numbers are turned off.
-
-     `gtroff' reserves three digit spaces for the line number (which is
-     printed right-justified) plus the amount given by INDENT; the
-     output lines are concatenated to the line numbers, separated by
-     SPACE, and _without_ reducing the line length.  Depending on the
-     value of the horizontal page offset (as set with the `po'
-     request), line numbers which are longer than the reserved space
-     stick out to the left, or the whole line is moved to the right.
-
-     Parameters corresponding to missing arguments are not changed; any
-     non-digit argument (to be more precise, any argument starting with
-     a character valid as a delimiter for identifiers) is also treated
-     as missing.
-
-     If line numbering has been disabled with a call to `nm' without an
-     argument, it can be reactivated with `.nm +0', using the
-     previously active line numbering parameters.
-
-     The parameters of `nm' are associated with the current environment
-     (*note Environments::).  The current output line number is
-     available in the number register `ln'.
-
-
-          .po 1m
-          .ll 2i
-          This test shows how line numbering works with groff.
-          .nm 999
-          This test shows how line numbering works with groff.
-          .br
-          .nm xxx 3 2
-          .ll -\w'0'u
-          This test shows how line numbering works with groff.
-          .nn 2
-          This test shows how line numbering works with groff.
-
-     And here the result:
-
-
-           This  test shows how
-           line numbering works
-           999 with   groff.   This
-          1000 test shows how  line
-          1001 numbering works with
-          1002 groff.
-                This test shows how
-                line      numbering
-           works  with  groff.
-           This test shows how
-          1005  line      numbering
-                works with groff.
-
-
- - Request: .nn [skip]
-     Temporarily turn off line numbering.  The argument is the number
-     of lines not to be numbered; this defaults to 1.
-
- - Request: .mc glyph [dist]
-     Print a "margin character" to the right of the text.(1) (*note
-     Miscellaneous-Footnote-1::)  The first argument is the glyph to be
-     printed.  The second argument is the distance away from the right
-     margin.  If missing, the previously set value is used; default is
-     10pt).  For text lines that are too long (that is, longer than the
-     text length plus DIST), the margin character is directly appended
-     to the lines.
-
-     With no arguments the margin character is turned off.  If this
-     occurs before a break, no margin character is printed.
-
-     For empty lines and lines produced by the `tl' request no margin
-     character is emitted.
-
-     The margin character is associated with the current environment
-     (*note Environments::).
-
-     This is quite useful for indicating text that has changed, and, in
-     fact, there are programs available for doing this (they are called
-     `nrchbar' and `changebar' and can be found in any
-     `comp.sources.unix' archive.
-
-
-          .ll 3i
-          .mc |
-          This paragraph is highlighted with a margin
-          character.
-          .sp
-          Note that vertical space isn't marked.
-          .br
-          \&
-          .br
-          But we can fake it with `\&'.
-
-     Result:
-
-
-          This  paragraph is highlighted |
-          with a margin character.       |
-          
-          Note that vertical space isn't |
-          marked.                        |
-                                         |
-          But we can fake it with `\&'.  |
-
-
- - Request: .psbb filename
- - Register: \n[llx]
- - Register: \n[lly]
- - Register: \n[urx]
- - Register: \n[ury]
-     Retrieve the bounding box of the PostScript image found in
-     FILENAME.  The file must conform to Adobe's "Document Structuring
-     Conventions" (DSC); the command searches for a `%%BoundingBox'
-     comment and extracts the bounding box values into the number
-     registers `llx', `lly', `urx', and `ury'.  If an error occurs (for
-     example, `psbb' cannot find the `%%BoundingBox' comment), it sets
-     the four number registers to zero.
-
-
-File: groff,  Node: Miscellaneous-Footnotes,  Up: Miscellaneous
-
-   (1) "Margin character" is a misnomer since it is an output glyph.
-
-
-File: groff,  Node: Gtroff Internals,  Next: Debugging,  Prev: Miscellaneous,  Up: gtroff Reference
-
-`gtroff' Internals
-==================
-
-   `gtroff' processes input in three steps.  One or more input
-characters are converted to an "input token".(1) (*note Gtroff
-Internals-Footnote-1::)  Then, one or more input tokens are converted
-to an "output node".  Finally, output nodes are converted to the
-intermediate output language understood by all output devices.
-
-   Actually, before step one happens, `gtroff' converts certain escape
-sequences into reserved input characters (not accessible by the user);
-such reserved characters are used for other internal processing also -
-this is the very reason why not all characters are valid input.  *Note
-Identifiers::, for more on this topic.
-
-   For example, the input string `fi\[:u]' is converted into a
-character token `f', a character token `i', and a special token `:u'
-(representing u umlaut).  Later on, the character tokens `f' and `i'
-are merged to a single output node representing the ligature glyph `fi'
-(provided the current font has a glyph for this ligature); the same
-happens with `:u'.  All output glyph nodes are `processed' which means
-that they are invariably associated with a given font, font size,
-advance width, etc.  During the formatting process, `gtroff' itself
-adds various nodes to control the data flow.
-
-   Macros, diversions, and strings collect elements in two chained
-lists: a list of input tokens which have been passed unprocessed, and a
-list of output nodes.  Consider the following the diversion.
-
-
-     .di xxx
-     a
-     \!b
-     c
-     .br
-     .di
-
-It contains these elements.
-
-node list            token list   element number
-line start node      --           1
-glyph node `a'       --           2
-word space node      --           3
---                   `b'          4
---                   `\n'         5
-glyph node `c'       --           6
-vertical size node   --           7
-vertical size node   --           8
---                   `\n'         9
-
-Elements 1, 7, and 8 are inserted by `gtroff'; the latter two (which
-are always present) specify the vertical extent of the last line,
-possibly modified by `\x'.  The `br' request finishes the current
-partial line, inserting a newline input token which is subsequently
-converted to a space when the diversion is reread.  Note that the word
-space node has a fixed width which isn't stretchable anymore.  To
-convert horizontal space nodes back to input tokens, use the `unformat'
-request.
-
-   Macros only contain elements in the token list (and the node list is
-empty); diversions and strings can contain elements in both lists.
-
-   Note that the `chop' request simply reduces the number of elements
-in a macro, string, or diversion by one.  Exceptions are "compatibility
-save" and "compatibility ignore" input tokens which are ignored.  The
-`substring' request also ignores those input tokens.
-
-   Some requests like `tr' or `cflags' work on glyph identifiers only;
-this means that the associated glyph can be changed without destroying
-this association.  This can be very helpful for substituting glyphs.
-In the following example, we assume that glyph `foo' isn't available by
-default, so we provide a substitution using the `fchar' request and map
-it to input character `x'.
-
-
-     .fchar \[foo] foo
-     .tr x \[foo]
-
-Now let us assume that we install an additional special font `bar'
-which has glyph `foo'.
-
-
-     .special bar
-     .rchar \[foo]
-
-Since glyphs defined with `fchar' are searched before glyphs in special
-fonts, we must call `rchar' to remove the definition of the fallback
-glyph.  Anyway, the translation is still active; `x' now maps to the
-real glyph `foo'.
-
-
-File: groff,  Node: Gtroff Internals-Footnotes,  Up: Gtroff Internals
-
-   (1) Except the escapes `\f', `\F', `\H', `\m', `\M', `\R', `\s', and
-`\S' which are processed immediately if not in copy-in mode.
-
-
-File: groff,  Node: Debugging,  Next: Implementation Differences,  Prev: Gtroff Internals,  Up: gtroff Reference
-
-Debugging
-=========
-
-   `gtroff' is not easy to debug, but there are some useful features
-and strategies for debugging.
-
- - Request: .lf line [filename]
-     Change the line number and optionally the file name `gtroff' shall
-     use for error and warning messages.  LINE is the input line number
-     of the _next_ line.
-
-     Without argument, the request is ignored.
-
-     This is a debugging aid for documents which are split into many
-     files, then put together with `soelim' and other preprocessors.
-     Usually, it isn't invoked manually.
-
-     Note that other `troff' implementations (including the original
-     AT&T version) handle `lf' differently.  For them, LINE changes the
-     line number of the _current_ line.
-
- - Request: .tm string
- - Request: .tm1 string
- - Request: .tmc string
-     Send STRING to the standard error output; this is very useful for
-     printing debugging messages among other things.
-
-     STRING is read in copy mode.
-
-     The `tm' request ignores leading spaces of STRING; `tm1' handles
-     its argument similar to the `ds' request: a leading double quote
-     in STRING is stripped to allow initial blanks.
-
-     The `tmc' request is similar to `tm1' but does not append a
-     newline (as is done in `tm' and `tm1').
-
- - Request: .ab [string]
-     Similar to the `tm' request, except that it causes `gtroff' to
-     stop processing.  With no argument it prints `User Abort.' to
-     standard error.
-
- - Request: .ex
-     The `ex' request also causes `gtroff' to stop processing; see also
-     *Note I/O::.
-
-   When doing something involved it is useful to leave the debugging
-statements in the code and have them turned on by a command line flag.
-
-
-     .if \n(DB .tm debugging output
-
-To activate these statements say
-
-
-     groff -rDB=1 file
-
-   If it is known in advance that there will be many errors and no
-useful output, `gtroff' can be forced to suppress formatted output with
-the `-z' flag.
-
- - Request: .pm
-     Print the entire symbol table on `stderr'.  Names of all defined
-     macros, strings, and diversions are print together with their size
-     in bytes.  Since `gtroff' sometimes adds nodes by itself, the
-     returned size can be larger than expected.
-
-     This request differs from UNIX `troff': `gtroff' reports the sizes
-     of diversions, ignores an additional argument to print only the
-     total of the sizes, and the size isn't returned in blocks of 128
-     characters.
-
- - Request: .pnr
-     Print the names and contents of all currently defined number
-     registers on `stderr'.
-
- - Request: .ptr
-     Print the names and positions of all traps (not including input
-     line traps and diversion traps) on `stderr'.  Empty slots in the
-     page trap list are printed as well, because they can affect the
-     priority of subsequently planted traps.
-
- - Request: .fl
-     Instruct `gtroff' to flush its output immediately.  The intent is
-     for interactive use, but this behaviour is currently not
-     implemented in `gtroff'.  Contrary to UNIX `troff', TTY output is
-     sent to a device driver also (`grotty'), making it non-trivial to
-     communicate interactively.
-
-     This request causes a line break.
-
- - Request: .backtrace
-     Print a backtrace of the input stack to the standard error stream.
-
-     Consider the following in file `test':
-
-
-          .de xxx
-          .  backtrace
-          ..
-          .de yyy
-          .  xxx
-          ..
-          .
-          .yyy
-
-     On execution, `gtroff' prints the following:
-
-
-          test:2: backtrace: macro `xxx'
-          test:5: backtrace: macro `yyy'
-          test:8: backtrace: file `test'
-
-     The option `-b' of `gtroff' internally calls a variant of this
-     request on each error and warning.
-
- - Register: \n[slimit]
-     Use the `slimit' number register to set the maximum number of
-     objects on the input stack.  If `slimit' is less than or equal
-     to 0, there is no limit set.  With no limit, a buggy recursive
-     macro can exhaust virtual memory.
-
-     The default value is 1000; this is a compile-time constant.
-
- - Request: .warnscale si
-     Set the scaling indicator used in warnings to SI.  Valid values for
-     SI are `u', `i', `c', `p', and `P'.  At startup, it is set to `i'.
-
- - Request: .spreadwarn [limit]
-     Make `gtroff' emit a warning if the additional space inserted for
-     each space between words in an output line is larger or equal to
-     LIMIT.  A negative value is changed to zero; no argument toggles
-     the warning on and off without changing LIMIT.  The default scaling
-     indicator is `m'.  At startup, `spreadwarn' is deactivated, and
-     LIMIT is set to 3m.
-
-     For example,
-
-
-          .spreadwarn 0.2m
-
-     will cause a warning if `gtroff' must add 0.2m or more for each
-     interword space in a line.
-
-     This request is active only if text is justified to both margins
-     (using `.ad b').
-
-   `gtroff' has command line options for printing out more warnings
-(`-w') and for printing backtraces (`-b') when a warning or an error
-occurs.  The most verbose level of warnings is `-ww'.
-
- - Request: .warn [flags]
- - Register: \n[.warn]
-     Control the level of warnings checked for.  The FLAGS are the sum
-     of the numbers associated with each warning that is to be enabled;
-     all other warnings are disabled.  The number associated with each
-     warning is listed below.  For example, `.warn 0' disables all
-     warnings, and `.warn 1' disables all warnings except that about
-     missing glyphs.  If no argument is given, all warnings are enabled.
-
-     The read-only number register `.warn' contains the current warning
-     level.
-
-* Menu:
-
-* Warnings::
-
diff --git a/contrib/groff/doc/groff-8 b/contrib/groff/doc/groff-8
deleted file mode 100644
index 5217828..0000000
--- a/contrib/groff/doc/groff-8
+++ /dev/null
@@ -1,1416 +0,0 @@
-This is groff, produced by makeinfo version 4.3d from ./groff.texinfo.
-
-This manual documents GNU `troff' version 1.19.
-
-   Copyright (C) 1994-2000, 2001, 2002, 2003 Free Software Foundation,
-Inc.
-
-     Permission is granted to copy, distribute and/or modify this
-     document under the terms of the GNU Free Documentation License,
-     Version 1.1 or any later version published by the Free Software
-     Foundation; with no Invariant Sections, with the Front-Cover texts
-     being `A GNU Manual," and with the Back-Cover Texts as in (a)
-     below.  A copy of the license is included in the section entitled
-     `GNU Free Documentation License."
-
-     (a) The FSF's Back-Cover Text is: `You have freedom to copy and
-     modify this GNU Manual, like GNU software.  Copies published by
-     the Free Software Foundation raise funds for GNU development."
-   
-INFO-DIR-SECTION Typesetting
-START-INFO-DIR-ENTRY
-* Groff: (groff).               The GNU troff document formatting system.
-END-INFO-DIR-ENTRY
-
-
-File: groff,  Node: Warnings,  Prev: Debugging,  Up: Debugging
-
-Warnings
---------
-
-   The warnings that can be given to `gtroff' are divided into the
-following categories.  The name associated with each warning is used by
-the `-w' and `-W' options; the number is used by the `warn' request and
-by the `.warn' register.
-
-`char'
-`1'
-     Non-existent glyphs.(1) (*note Warnings-Footnote-1::)  This is
-     enabled by default.
-
-`number'
-`2'
-     Invalid numeric expressions.  This is enabled by default.  *Note
-     Expressions::.
-
-`break'
-`4'
-     In fill mode, lines which could not be broken so that their length
-     was less than the line length.  This is enabled by default.
-
-`delim'
-`8'
-     Missing or mismatched closing delimiters.
-
-`el'
-`16'
-     Use of the `el' request with no matching `ie' request.  *Note
-     if-else::.
-
-`scale'
-`32'
-     Meaningless scaling indicators.
-
-`range'
-`64'
-     Out of range arguments.
-
-`syntax'
-`128'
-     Dubious syntax in numeric expressions.
-
-`di'
-`256'
-     Use of `di' or `da' without an argument when there is no current
-     diversion.
-
-`mac'
-`512'
-     Use of undefined strings, macros and diversions.  When an undefined
-     string, macro, or diversion is used, that string is automatically
-     defined as empty.  So, in most cases, at most one warning is given
-     for each name.
-
-`reg'
-`1024'
-     Use of undefined number registers.  When an undefined number
-     register is used, that register is automatically defined to have a
-     value of 0.  So, in most cases, at most one warning is given for
-     use of a particular name.
-
-`tab'
-`2048'
-     Use of a tab character where a number was expected.
-
-`right-brace'
-`4096'
-     Use of `\}' where a number was expected.
-
-`missing'
-`8192'
-     Requests that are missing non-optional arguments.
-
-`input'
-`16384'
-     Invalid input characters.
-
-`escape'
-`32768'
-     Unrecognized escape sequences.  When an unrecognized escape
-     sequence `\X' is encountered, the escape character is ignored, and
-     X is printed.
-
-`space'
-`65536'
-     Missing space between a request or macro and its argument.  This
-     warning is given when an undefined name longer than two characters
-     is encountered, and the first two characters of the name make a
-     defined name.  The request or macro is not invoked.  When this
-     warning is given, no macro is automatically defined.  This is
-     enabled by default.  This warning never occurs in compatibility
-     mode.
-
-`font'
-`131072'
-     Non-existent fonts.  This is enabled by default.
-
-`ig'
-`262144'
-     Invalid escapes in text ignored with the `ig' request.  These are
-     conditions that are errors when they do not occur in ignored text.
-
-`color'
-`524288'
-     Color related warnings.
-
-`all'
-     All warnings except `di', `mac' and `reg'.  It is intended that
-     this covers all warnings that are useful with traditional macro
-     packages.
-
-`w'
-     All warnings.
-
-
-File: groff,  Node: Warnings-Footnotes,  Up: Warnings
-
-   (1) `char' is a misnomer since it reports missing glyphs - there
-aren't missing input characters, only invalid ones.
-
-
-File: groff,  Node: Implementation Differences,  Prev: Debugging,  Up: gtroff Reference
-
-Implementation Differences
-==========================
-
-   GNU `troff' has a number of features which cause incompatibilities
-with documents written with old versions of `troff'.
-
-   Long names cause some incompatibilities.  UNIX `troff' interprets
-
-
-     .dsabcd
-
-as defining a string `ab' with contents `cd'.  Normally, GNU `troff'
-interprets this as a call of a macro named `dsabcd'.  Also UNIX `troff'
-interprets `\*[' or `\n[' as references to a string or number register
-called `['.  In GNU `troff', however, this is normally interpreted as
-the start of a long name.  In compatibility mode GNU `troff' interprets
-long names in the traditional way (which means that they are not
-recognized as names).
-
- - Request: .cp [n]
- - Request: .do cmd
- - Register: \n[.C]
-     If N is missing or non-zero, turn on compatibility mode;
-     otherwise, turn it off.
-
-     The read-only number register `.C' is 1 if compatibility mode is
-     on, 0 otherwise.
-
-     Compatibility mode can be also turned on with the `-C' command line
-     option.
-
-     The `do' request turns off compatibility mode while executing its
-     arguments as a `gtroff' command.
-
-
-          .do fam T
-
-     executes the `fam' request when compatibility mode is enabled.
-
-     `gtroff' restores the previous compatibility setting before
-     interpreting any files sourced by the CMD.
-
-   Two other features are controlled by `-C'.  If not in compatibility
-mode, GNU `troff' preserves the input level in delimited arguments:
-
-
-     .ds xx '
-     \w'abc\*(xxdef'
-
-In compatibility mode, the string `72def'' is returned; without `-C'
-the resulting string is `168' (assuming a TTY output device).
-
-   Finally, the escapes `\f', `\H', `\m', `\M', `\R', `\s', and `\S'
-are transparent for recognizing the beginning of a line only in
-compatibility mode (this is a rather obscure feature).  For example,
-the code
-
-
-     .de xx
-     Hallo!
-     ..
-     \fB.xx\fP
-
-prints `Hallo!' in bold face if in compatibility mode, and `.xx' in
-bold face otherwise.
-
-   GNU `troff' does not allow the use of the escape sequences `\|',
-`\^', `\&', `\{', `\}', `\<SP>', `\'', `\`', `\-', `\_', `\!', `\%',
-and `\c' in names of strings, macros, diversions, number registers,
-fonts or environments; UNIX `troff' does.  The `\A' escape sequence
-(*note Identifiers::) may be helpful in avoiding use of these escape
-sequences in names.
-
-   Fractional point sizes cause one noteworthy incompatibility.  In
-UNIX `troff' the `ps' request ignores scale indicators and thus
-
-
-     .ps 10u
-
-sets the point size to 10 points, whereas in GNU `troff' it sets the
-point size to 10 scaled points.  *Note Fractional Type Sizes::, for
-more information.
-
-   In GNU `troff' there is a fundamental difference between
-(unformatted) input characters and (formatted) output glyphs.
-Everything that affects how a glyph is output is stored with the glyph
-node; once a glyph node has been constructed it is unaffected by any
-subsequent requests that are executed, including `bd', `cs', `tkf',
-`tr', or `fp' requests.  Normally glyphs are constructed from input
-characters at the moment immediately before the glyph is added to the
-current output line.  Macros, diversions and strings are all, in fact,
-the same type of object; they contain lists of input characters and
-glyph nodes in any combination.  A glyph node does not behave like an
-input character for the purposes of macro processing; it does not
-inherit any of the special properties that the input character from
-which it was constructed might have had.  For example,
-
-
-     .di x
-     \\\\
-     .br
-     .di
-     .x
-
-prints `\\' in GNU `troff'; each pair of input backslashes is turned
-into one output backslash and the resulting output backslashes are not
-interpreted as escape characters when they are reread.  UNIX `troff'
-would interpret them as escape characters when they were reread and
-would end up printing one `\'.  The correct way to obtain a printable
-backslash is to use the `\e' escape sequence: This always prints a
-single instance of the current escape character, regardless of whether
-or not it is used in a diversion; it also works in both GNU `troff' and
-UNIX `troff'.(1) (*note Implementation Differences-Footnote-1::)  To
-store, for some reason, an escape sequence in a diversion that will be
-interpreted when the diversion is reread, either use the traditional
-`\!' transparent output facility, or, if this is unsuitable, the new
-`\?' escape sequence.
-
-   *Note Diversions::, and *Note Gtroff Internals::, for more
-information.
-
-
-File: groff,  Node: Implementation Differences-Footnotes,  Up: Implementation Differences
-
-   (1) To be completely independent of the current escape character,
-use `\(rs' which represents a reverse solidus (backslash) glyph.
-
-
-File: groff,  Node: Preprocessors,  Next: Output Devices,  Prev: gtroff Reference,  Up: Top
-
-Preprocessors
-*************
-
-   This chapter describes all preprocessors that come with `groff' or
-which are freely available.
-
-* Menu:
-
-* geqn::
-* gtbl::
-* gpic::
-* ggrn::
-* grap::
-* grefer::
-* gsoelim::
-
-
-File: groff,  Node: geqn,  Next: gtbl,  Prev: Preprocessors,  Up: Preprocessors
-
-`geqn'
-======
-
-* Menu:
-
-* Invoking geqn::
-
-
-File: groff,  Node: Invoking geqn,  Prev: geqn,  Up: geqn
-
-Invoking `geqn'
----------------
-
-
-File: groff,  Node: gtbl,  Next: gpic,  Prev: geqn,  Up: Preprocessors
-
-`gtbl'
-======
-
-* Menu:
-
-* Invoking gtbl::
-
-
-File: groff,  Node: Invoking gtbl,  Prev: gtbl,  Up: gtbl
-
-Invoking `gtbl'
----------------
-
-
-File: groff,  Node: gpic,  Next: ggrn,  Prev: gtbl,  Up: Preprocessors
-
-`gpic'
-======
-
-* Menu:
-
-* Invoking gpic::
-
-
-File: groff,  Node: Invoking gpic,  Prev: gpic,  Up: gpic
-
-Invoking `gpic'
----------------
-
-
-File: groff,  Node: ggrn,  Next: grap,  Prev: gpic,  Up: Preprocessors
-
-`ggrn'
-======
-
-* Menu:
-
-* Invoking ggrn::
-
-
-File: groff,  Node: Invoking ggrn,  Prev: ggrn,  Up: ggrn
-
-Invoking `ggrn'
----------------
-
-
-File: groff,  Node: grap,  Next: grefer,  Prev: ggrn,  Up: Preprocessors
-
-`grap'
-======
-
-   A free implementation of `grap', written by Ted Faber, is available
-as an extra package from the following address:
-
-     `http://www.lunabase.org/~faber/Vault/software/grap/'
-
-
-File: groff,  Node: grefer,  Next: gsoelim,  Prev: grap,  Up: Preprocessors
-
-`grefer'
-========
-
-* Menu:
-
-* Invoking grefer::
-
-
-File: groff,  Node: Invoking grefer,  Prev: grefer,  Up: grefer
-
-Invoking `grefer'
------------------
-
-
-File: groff,  Node: gsoelim,  Prev: grefer,  Up: Preprocessors
-
-`gsoelim'
-=========
-
-* Menu:
-
-* Invoking gsoelim::
-
-
-File: groff,  Node: Invoking gsoelim,  Prev: gsoelim,  Up: gsoelim
-
-Invoking `gsoelim'
-------------------
-
-
-File: groff,  Node: Output Devices,  Next: File formats,  Prev: Preprocessors,  Up: Top
-
-Output Devices
-**************
-
-* Menu:
-
-* Special Characters::
-* grotty::
-* grops::
-* grodvi::
-* grolj4::
-* grolbp::
-* grohtml::
-* gxditview::
-
-
-File: groff,  Node: Special Characters,  Next: grotty,  Prev: Output Devices,  Up: Output Devices
-
-Special Characters
-==================
-
-   *Note Font Files::.
-
-
-File: groff,  Node: grotty,  Next: grops,  Prev: Special Characters,  Up: Output Devices
-
-`grotty'
-========
-
-* Menu:
-
-* Invoking grotty::
-
-
-File: groff,  Node: Invoking grotty,  Prev: grotty,  Up: grotty
-
-Invoking `grotty'
------------------
-
-
-File: groff,  Node: grops,  Next: grodvi,  Prev: grotty,  Up: Output Devices
-
-`grops'
-=======
-
-* Menu:
-
-* Invoking grops::
-* Embedding PostScript::
-
-
-File: groff,  Node: Invoking grops,  Next: Embedding PostScript,  Prev: grops,  Up: grops
-
-Invoking `grops'
-----------------
-
-
-File: groff,  Node: Embedding PostScript,  Prev: Invoking grops,  Up: grops
-
-Embedding POSTSCRIPT
---------------------
-
-
-File: groff,  Node: grodvi,  Next: grolj4,  Prev: grops,  Up: Output Devices
-
-`grodvi'
-========
-
-* Menu:
-
-* Invoking grodvi::
-
-
-File: groff,  Node: Invoking grodvi,  Prev: grodvi,  Up: grodvi
-
-Invoking `grodvi'
------------------
-
-
-File: groff,  Node: grolj4,  Next: grolbp,  Prev: grodvi,  Up: Output Devices
-
-`grolj4'
-========
-
-* Menu:
-
-* Invoking grolj4::
-
-
-File: groff,  Node: Invoking grolj4,  Prev: grolj4,  Up: grolj4
-
-Invoking `grolj4'
------------------
-
-
-File: groff,  Node: grolbp,  Next: grohtml,  Prev: grolj4,  Up: Output Devices
-
-`grolbp'
-========
-
-* Menu:
-
-* Invoking grolbp::
-
-
-File: groff,  Node: Invoking grolbp,  Prev: grolbp,  Up: grolbp
-
-Invoking `grolbp'
------------------
-
-
-File: groff,  Node: grohtml,  Next: gxditview,  Prev: grolbp,  Up: Output Devices
-
-`grohtml'
-=========
-
-* Menu:
-
-* Invoking grohtml::
-* grohtml specific registers and strings::
-
-
-File: groff,  Node: Invoking grohtml,  Next: grohtml specific registers and strings,  Prev: grohtml,  Up: grohtml
-
-Invoking `grohtml'
-------------------
-
-
-File: groff,  Node: grohtml specific registers and strings,  Prev: Invoking grohtml,  Up: grohtml
-
-`grohtml' specific registers and strings
-----------------------------------------
-
- - Register: \n[ps4html]
- - String: \*[www-image-template]
-     The registers `ps4html' and `www-image-template' are defined by
-     the `pre-grohtml' preprocessor.  `pre-grohtml' reads in the
-     `troff' input, marks up the inline equations and passes the result
-     firstly to
-
-
-          troff -Tps -rps4html=1 -dwww-image-template=TEMPLATE
-
-     and secondly to
-
-
-          troff -Thtml
-
-     The PostScript device is used to create all the image files, and
-     the register `ps4html' enables the macro sets to ignore floating
-     keeps, footers, and headings.
-
-     The register `www-image-template' is set to the user specified
-     template name or the default name.
-
-
-File: groff,  Node: gxditview,  Prev: grohtml,  Up: Output Devices
-
-`gxditview'
-===========
-
-* Menu:
-
-* Invoking gxditview::
-
-
-File: groff,  Node: Invoking gxditview,  Prev: gxditview,  Up: gxditview
-
-Invoking `gxditview'
---------------------
-
-
-File: groff,  Node: File formats,  Next: Installation,  Prev: Output Devices,  Up: Top
-
-File formats
-************
-
-   All files read and written by `gtroff' are text files.  The
-following two sections describe their format.
-
-* Menu:
-
-* gtroff Output::
-* Font Files::
-
-
-File: groff,  Node: gtroff Output,  Next: Font Files,  Prev: File formats,  Up: File formats
-
-`gtroff' Output
-===============
-
-   This section describes the intermediate output format of GNU
-`troff'.  This output is produced by a run of `gtroff' before it is fed
-into a device postprocessor program.
-
-   As `groff' is a wrapper program around `gtroff' that automatically
-calls a postprocessor, this output does not show up normally.  This is
-why it is called "intermediate".  `groff' provides the option `-Z' to
-inhibit postprocessing, such that the produced intermediate output is
-sent to standard output just like calling `gtroff' manually.
-
-   Here, the term "troff output" describes what is output by `gtroff',
-while "intermediate output" refers to the language that is accepted by
-the parser that prepares this output for the postprocessors.  This
-parser is smarter on whitespace and implements obsolete elements for
-compatibility, otherwise both formats are the same.(1) (*note gtroff
-Output-Footnote-1::)
-
-   The main purpose of the intermediate output concept is to facilitate
-the development of postprocessors by providing a common programming
-interface for all devices.  It has a language of its own that is
-completely different from the `gtroff' language.  While the `gtroff'
-language is a high-level programming language for text processing, the
-intermediate output language is a kind of low-level assembler language
-by specifying all positions on the page for writing and drawing.
-
-   The intermediate output produced by `gtroff' is fairly readable,
-while output from AT&T `troff' is rather hard to understand because of
-strange habits that are still supported, but not used any longer by
-`gtroff'.
-
-* Menu:
-
-* Language Concepts::
-* Command Reference::
-* Intermediate Output Examples::
-* Output Language Compatibility::
-
-
-File: groff,  Node: gtroff Output-Footnotes,  Up: gtroff Output
-
-   (1) The parser and postprocessor for intermediate output can be
-found in the file
-`GROFF-SOURCE-DIR/src/libs/libdriver/input.cpp'.
-
-
-File: groff,  Node: Language Concepts,  Next: Command Reference,  Prev: gtroff Output,  Up: gtroff Output
-
-Language Concepts
------------------
-
-   During the run of `gtroff', the input data is cracked down to the
-information on what has to be printed at what position on the intended
-device.  So the language of the intermediate output format can be quite
-small.  Its only elements are commands with and without arguments.  In
-this section, the term "command" always refers to the intermediate
-output language, and never to the `gtroff' language used for document
-formatting.  There are commands for positioning and text writing, for
-drawing, and for device controlling.
-
-* Menu:
-
-* Separation::
-* Argument Units::
-* Document Parts::
-
-
-File: groff,  Node: Separation,  Next: Argument Units,  Prev: Language Concepts,  Up: Language Concepts
-
-Separation
-..........
-
-   AT&T `troff' output has strange requirements on whitespace.  The
-`gtroff' output parser, however, is smart about whitespace by making it
-maximally optional.  The whitespace characters, i.e., the tab, space,
-and newline characters, always have a syntactical meaning.  They are
-never printable because spacing within the output is always done by
-positioning commands.
-
-   Any sequence of space or tab characters is treated as a single
-"syntactical space".  It separates commands and arguments, but is only
-required when there would occur a clashing between the command code and
-the arguments without the space.  Most often, this happens when
-variable-length command names, arguments, argument lists, or command
-clusters meet.  Commands and arguments with a known, fixed length need
-not be separated by syntactical space.
-
-   A line break is a syntactical element, too.  Every command argument
-can be followed by whitespace, a comment, or a newline character.  Thus
-a "syntactical line break" is defined to consist of optional
-syntactical space that is optionally followed by a comment, and a
-newline character.
-
-   The normal commands, those for positioning and text, consist of a
-single letter taking a fixed number of arguments.  For historical
-reasons, the parser allows to stack such commands on the same line, but
-fortunately, in `gtroff''s intermediate output, every command with at
-least one argument is followed by a line break, thus providing
-excellent readability.
-
-   The other commands - those for drawing and device controlling - have
-a more complicated structure; some recognize long command names, and
-some take a variable number of arguments.  So all `D' and `x' commands
-were designed to request a syntactical line break after their last
-argument.  Only one command, `x X', has an argument that can stretch
-over several lines; all other commands must have all of their arguments
-on the same line as the command, i.e., the arguments may not be
-splitted by a line break.
-
-   Empty lines (these are lines containing only space and/or a
-comment), can occur everywhere.  They are just ignored.
-
-
-File: groff,  Node: Argument Units,  Next: Document Parts,  Prev: Separation,  Up: Language Concepts
-
-Argument Units
-..............
-
-   Some commands take integer arguments that are assumed to represent
-values in a measurement unit, but the letter for the corresponding
-scale indicator is not written with the output command arguments.  Most
-commands assume the scale indicator `u', the basic unit of the device,
-some use `z', the scaled point unit of the device, while others, such
-as the color commands, expect plain integers.
-
-   Note that single characters can have the eighth bit set, as can the
-names of fonts and special characters.  The names of characters and
-fonts can be of arbitrary length.  A character that is to be printed
-will always be in the current font.
-
-   A string argument is always terminated by the next whitespace
-character (space, tab, or newline); an embedded `#' character is
-regarded as part of the argument, not as the beginning of a comment
-command.  An integer argument is already terminated by the next
-non-digit character, which then is regarded as the first character of
-the next argument or command.
-
-
-File: groff,  Node: Document Parts,  Prev: Argument Units,  Up: Language Concepts
-
-Document Parts
-..............
-
-   A correct intermediate output document consists of two parts, the
-"prologue" and the "body".
-
-   The task of the prologue is to set the general device parameters
-using three exactly specified commands.  `gtroff''s prologue is
-guaranteed to consist of the following three lines (in that order):
-
-
-     x T DEVICE
-     x res N H V
-     x init
-
-with the arguments set as outlined in *Note Device Control Commands::.
-Note that the parser for the intermediate output format is able to
-swallow additional whitespace and comments as well even in the prologue.
-
-   The body is the main section for processing the document data.
-Syntactically, it is a sequence of any commands different from the ones
-used in the prologue.  Processing is terminated as soon as the first
-`x stop' command is encountered; the last line of any `gtroff'
-intermediate output always contains such a command.
-
-   Semantically, the body is page oriented.  A new page is started by a
-`p' command.  Positioning, writing, and drawing commands are always
-done within the current page, so they cannot occur before the first `p'
-command.  Absolute positioning (by the `H' and `V' commands) is done
-relative to the current page; all other positioning is done relative to
-the current location within this page.
-
-
-File: groff,  Node: Command Reference,  Next: Intermediate Output Examples,  Prev: Language Concepts,  Up: gtroff Output
-
-Command Reference
------------------
-
-   This section describes all intermediate output commands, both from
-AT&T `troff' as well as the `gtroff' extensions.
-
-* Menu:
-
-* Comment Command::
-* Simple Commands::
-* Graphics Commands::
-* Device Control Commands::
-* Obsolete Command::
-
-
-File: groff,  Node: Comment Command,  Next: Simple Commands,  Prev: Command Reference,  Up: Command Reference
-
-Comment Command
-...............
-
-`#ANYTHING<end of line>'
-     A comment.  Ignore any characters from the `#' character up to the
-     next newline character.
-
-     This command is the only possibility for commenting in the
-     intermediate output.  Each comment can be preceded by arbitrary
-     syntactical space; every command can be terminated by a comment.
-
-
-File: groff,  Node: Simple Commands,  Next: Graphics Commands,  Prev: Comment Command,  Up: Command Reference
-
-Simple Commands
-...............
-
-   The commands in this subsection have a command code consisting of a
-single character, taking a fixed number of arguments.  Most of them are
-commands for positioning and text writing.  These commands are smart
-about whitespace.  Optionally, syntactical space can be inserted
-before, after, and between the command letter and its arguments.  All
-of these commands are stackable, i.e., they can be preceded by other
-simple commands or followed by arbitrary other commands on the same
-line.  A separating syntactical space is only necessary when two
-integer arguments would clash or if the preceding argument ends with a
-string argument.
-
-`C XXX<whitespace>'
-     Print a special character named XXX.  The trailing syntactical
-     space or line break is necessary to allow glyph names of arbitrary
-     length.  The glyph is printed at the current print position; the
-     glyph's size is read from the font file.  The print position is
-     not changed.
-
-`c G'
-     Print glyph G at the current print position;(1) (*note Simple
-     Commands-Footnote-1::) the glyph's size is read from the font
-     file.  The print position is not changed.
-
-`f N'
-     Set font to font number N (a non-negative integer).
-
-`H N'
-     Move right to the absolute vertical position N (a non-negative
-     integer in basic units `u' relative to left edge of current page.
-
-`h N'
-     Move N (a non-negative integer) basic units `u' horizontally to
-     the right.  The original UNIX troff manual allows negative values
-     for N also, but `gtroff' doesn't use this.
-
-`m COLOR-SCHEME [COMPONENT ...]'
-     Set the color for text (glyphs), line drawing, and the outline of
-     graphic objects using different color schemes; the analoguous
-     command for the filling color of graphic objects is `DF'.  The
-     color components are specified as integer arguments between 0 and
-     65536.  The number of color components and their meaning vary for
-     the different color schemes.  These commands are generated by
-     `gtroff''s escape sequence `\m'.  No position changing.  These
-     commands are a `gtroff' extension.
-
-    `mc CYAN MAGENTA YELLOW'
-          Set color using the CMY color scheme, having the 3 color
-          components CYAN, MAGENTA, and YELLOW.
-
-    `md'
-          Set color to the default color value (black in most cases).
-          No component arguments.
-
-    `mg GRAY'
-          Set color to the shade of gray given by the argument, an
-          integer between 0 (black) and 65536 (white).
-
-    `mk CYAN MAGENTA YELLOW BLACK'
-          Set color using the CMYK color scheme, having the 4 color
-          components CYAN, MAGENTA, YELLOW, and BLACK.
-
-    `mr RED GREEN BLUE'
-          Set color using the RGB color scheme, having the 3 color
-          components RED, GREEN, and BLUE.
-
-
-`N N'
-     Print glyph with index N (a non-negative integer) of the current
-     font.  This command is a `gtroff' extension.
-
-`n B A'
-     Inform the device about a line break, but no positioning is done by
-     this command.  In AT&T `troff', the integer arguments B and A
-     informed about the space before and after the current line to make
-     the intermediate output more human readable without performing any
-     action.  In `groff', they are just ignored, but they must be
-     provided for compatibility reasons.
-
-`p N'
-     Begin a new page in the outprint.  The page number is set to N.
-     This page is completely independent of pages formerly processed
-     even if those have the same page number.  The vertical position on
-     the outprint is automatically set to 0.  All positioning, writing,
-     and drawing is always done relative to a page, so a `p' command
-     must be issued before any of these commands.
-
-`s N'
-     Set point size to N scaled points (this is unit `z').  AT&T
-     `troff' used the unit points (`p') instead.  *Note Output Language
-     Compatibility::.
-
-`t XXX<whitespace>'
-`t XXX DUMMY-ARG<whitespace>'
-     Print a word, i.e., a sequence of characters XXX representing
-     output glyphs which names are single characters, terminated by a
-     space character or a line break; an optional second integer
-     argument is ignored (this allows the formatter to generate an even
-     number of arguments).  The first glyph should be printed at the
-     current position, the current horizontal position should then be
-     increased by the width of the first glyph, and so on for each
-     glyph.  The widths of the glyphs are read from the font file,
-     scaled for the current point size, and rounded to a multiple of
-     the horizontal resolution.  Special characters cannot be printed
-     using this command (use the `C' command for special characters).
-     This command is a `gtroff' extension; it is only used for devices
-     whose `DESC' file contains the `tcommand' keyword (*note DESC File
-     Format::).
-
-`u N XXX<whitespace>'
-     Print word with track kerning.  This is the same as the `t'
-     command except that after printing each glyph, the current
-     horizontal position is increased by the sum of the width of that
-     glyph and N (an integer in basic units `u').  This command is a
-     `gtroff' extension; it is only used for devices whose `DESC' file
-     contains the `tcommand' keyword (*note DESC File Format::).
-
-`V N'
-     Move down to the absolute vertical position N (a non-negative
-     integer in basic units `u') relative to upper edge of current page.
-
-`v N'
-     Move N basic units `u' down (N is a non-negative integer).  The
-     original UNIX troff manual allows negative values for N also, but
-     `gtroff' doesn't use this.
-
-`w'
-     Informs about a paddable white space to increase readability.  The
-     spacing itself must be performed explicitly by a move command.
-
-
-
-File: groff,  Node: Simple Commands-Footnotes,  Up: Simple Commands
-
-   (1) `c' is actually a misnomer since it outputs a glyph.
-
-
-File: groff,  Node: Graphics Commands,  Next: Device Control Commands,  Prev: Simple Commands,  Up: Command Reference
-
-Graphics Commands
-.................
-
-   Each graphics or drawing command in the intermediate output starts
-with the letter `D', followed by one or two characters that specify a
-subcommand; this is followed by a fixed or variable number of integer
-arguments that are separated by a single space character.  A `D'
-command may not be followed by another command on the same line (apart
-from a comment), so each `D' command is terminated by a syntactical
-line break.
-
-   `gtroff' output follows the classical spacing rules (no space
-between command and subcommand, all arguments are preceded by a single
-space character), but the parser allows optional space between the
-command letters and makes the space before the first argument optional.
-As usual, each space can be any sequence of tab and space characters.
-
-   Some graphics commands can take a variable number of arguments.  In
-this case, they are integers representing a size measured in basic
-units `u'.  The arguments called H1, H2, ..., HN stand for horizontal
-distances where positive means right, negative left.  The arguments
-called V1, V2, ..., VN stand for vertical distances where positive
-means down, negative up.  All these distances are offsets relative to
-the current location.
-
-   Each graphics command directly corresponds to a similar `gtroff'
-`\D' escape sequence.  *Note Drawing Requests::.
-
-   Unknown `D' commands are assumed to be device-specific.  Its
-arguments are parsed as strings; the whole information is then sent to
-the postprocessor.
-
-   In the following command reference, the syntax element <line break>
-means a syntactical line break as defined above.
-
-`D~ H1 V1 H2 V2 ... HN VN<line break>'
-     Draw B-spline from current position to offset (H1,V1), then to
-     offset (H2,V2), if given, etc. up to (HN,VN).  This command takes
-     a variable number of argument pairs; the current position is moved
-     to the terminal point of the drawn curve.
-
-`Da H1 V1 H2 V2<line break>'
-     Draw arc from current position to (H1,V1)+(H2,V2) with center at
-     (H1,V1); then move the current position to the final point of the
-     arc.
-
-`DC D<line break>'
-`DC D DUMMY-ARG<line break>'
-     Draw a solid circle using the current fill color with diameter D
-     (integer in basic units `u') with leftmost point at the current
-     position; then move the current position to the rightmost point of
-     the circle.  An optional second integer argument is ignored (this
-     allows the formatter to generate an even number of arguments).
-     This command is a `gtroff' extension.
-
-`Dc D<line break>'
-     Draw circle line with diameter D (integer in basic units `u') with
-     leftmost point at the current position; then move the current
-     position to the rightmost point of the circle.
-
-`DE H V<line break>'
-     Draw a solid ellipse in the current fill color with a horizontal
-     diameter of H and a vertical diameter of V (both integers in basic
-     units `u') with the leftmost point at the current position; then
-     move to the rightmost point of the ellipse.  This command is a
-     `gtroff' extension.
-
-`De H V<line break>'
-     Draw an outlined ellipse with a horizontal diameter of H and a
-     vertical diameter of V (both integers in basic units `u') with the
-     leftmost point at current position; then move to the rightmost
-     point of the ellipse.
-
-`DF COLOR-SCHEME [COMPONENT ...]<line break>'
-     Set fill color for solid drawing objects using different color
-     schemes; the analoguous command for setting the color of text, line
-     graphics, and the outline of graphic objects is `m'.  The color
-     components are specified as integer arguments between 0 and 65536.
-     The number of color components and their meaning vary for the
-     different color schemes.  These commands are generated by
-     `gtroff''s escape sequences `\D'F ...'' and `\M' (with no other
-     corresponding graphics commands).  No position changing.  This
-     command is a `gtroff' extension.
-
-    `DFc CYAN MAGENTA YELLOW<line break>'
-          Set fill color for solid drawing objects using the CMY color
-          scheme, having the 3 color components CYAN, MAGENTA, and
-          YELLOW.
-
-    `DFd<line break>'
-          Set fill color for solid drawing objects to the default fill
-          color value (black in most cases).  No component arguments.
-
-    `DFg GRAY<line break>'
-          Set fill color for solid drawing objects to the shade of gray
-          given by the argument, an integer between 0 (black) and 65536
-          (white).
-
-    `DFk CYAN MAGENTA YELLOW BLACK<line break>'
-          Set fill color for solid drawing objects using the CMYK color
-          scheme, having the 4 color components CYAN, MAGENTA, YELLOW,
-          and BLACK.
-
-    `DFr RED GREEN BLUE<line break>'
-          Set fill color for solid drawing objects using the RGB color
-          scheme, having the 3 color components RED, GREEN, and BLUE.
-
-
-`Df N<line break>'
-     The argument N must be an integer in the range -32767 to 32767.
-
-    0 <= N <= 1000
-          Set the color for filling solid drawing objects to a shade of
-          gray, where 0 corresponds to solid white, 1000 (the default)
-          to solid black, and values in between to intermediate shades
-          of gray; this is obsoleted by command `DFg'.
-
-    N < 0 or N > 1000
-          Set the filling color to the color that is currently being
-          used for the text and the outline, see command `m'.  For
-          example, the command sequence
-
-
-               mg 0 0 65536
-               Df -1
-
-          sets all colors to blue.
-
-
-     No position changing.  This command is a `gtroff' extension.
-
-`Dl H V<line break>'
-     Draw line from current position to offset (H,V) (integers in basic
-     units `u'); then set current position to the end of the drawn line.
-
-`Dp H1 V1 H2 V2 ... HN VN<line break>'
-     Draw a polygon line from current position to offset (H1,V1), from
-     there to offset (H2,V2), etc. up to offset (HN,VN), and from there
-     back to the starting position.  For historical reasons, the
-     position is changed by adding the sum of all arguments with odd
-     index to the actual horizontal position and the even ones to the
-     vertical position.  Although this doesn't make sense it is kept
-     for compatibility.  This command is a `gtroff' extension.
-
-`Dp H1 V1 H2 V2 ... HN VN<line break>'
-     Draw a solid polygon in the current fill color rather than an
-     outlined polygon, using the same arguments and positioning as the
-     corresponding `Dp' command.  This command is a `gtroff' extension.
-
-`Dt N<line break>'
-     Set the current line thickness to N (an integer in basic units
-     `u') if N>0; if N=0 select the smallest available line thickness;
-     if N<0 set the line thickness proportional to the point size (this
-     is the default before the first `Dt' command was specified).  For
-     historical reasons, the horizontal position is changed by adding
-     the argument to the actual horizontal position, while the vertical
-     position is not changed.  Although this doesn't make sense it is
-     kept for compatibility.  This command is a `gtroff' extension.
-
-
-
-File: groff,  Node: Device Control Commands,  Next: Obsolete Command,  Prev: Graphics Commands,  Up: Command Reference
-
-Device Control Commands
-.......................
-
-   Each device control command starts with the letter `x', followed by
-a space character (optional or arbitrary space or tab in `gtroff') and
-a subcommand letter or word; each argument (if any) must be preceded by
-a syntactical space.  All `x' commands are terminated by a syntactical
-line break; no device control command can be followed by another
-command on the same line (except a comment).
-
-   The subcommand is basically a single letter, but to increase
-readability, it can be written as a word, i.e., an arbitrary sequence
-of characters terminated by the next tab, space, or newline character.
-All characters of the subcommand word but the first are simply ignored.
-For example, `gtroff' outputs the initialization command `x i' as
-`x init' and the resolution command `x r' as `x res'.
-
-   In the following, the syntax element <line break> means a
-syntactical line break (*note Separation::).
-
-`xF NAME<line break>'
-     The `F' stands for FILENAME.
-
-     Use NAME as the intended name for the current file in error
-     reports.  This is useful for remembering the original file name
-     when `gtroff' uses an internal piping mechanism.  The input file is
-     not changed by this command.  This command is a `gtroff' extension.
-
-`xf N S<line break>'
-     The `f' stands for FONT.
-
-     Mount font position N (a non-negative integer) with font named S
-     (a text word).  *Note Font Positions::.
-
-`xH N<line break>'
-     The `H' stands for HEIGHT.
-
-     Set glyph height to N (a positive integer in scaled points `z').
-     AT&T `troff' uses the unit points (`p') instead.  *Note Output
-     Language Compatibility::.
-
-`xi<line break>'
-     The `i' stands for INIT.
-
-     Initialize device.  This is the third command of the prologue.
-
-`xp<line break>'
-     The `p' stands for PAUSE.
-
-     Parsed but ignored.  The original UNIX troff manual writes
-
-          pause device, can be restarted
-
-`xr N H V<line break>'
-     The `r' stands for RESOLUTION.
-
-     Resolution is N, while H is the minimal horizontal motion, and V
-     the minimal vertical motion possible with this device; all
-     arguments are positive integers in basic units `u' per inch.  This
-     is the second command of the prologue.
-
-`xS N<line break>'
-     The `S' stands for SLANT.
-
-     Set slant to N (an integer in basic units `u').
-
-`xs<line break>'
-     The `s' stands for STOP.
-
-     Terminates the processing of the current file; issued as the last
-     command of any intermediate troff output.
-
-`xt<line break>'
-     The `t' stands for TRAILER.
-
-     Generate trailer information, if any.  In GTROFF, this is actually
-     just ignored.
-
-`xT XXX<line break>'
-     The `T' stands for TYPESETTER.
-
-     Set name of device to word XXX, a sequence of characters ended by
-     the next white space character.  The possible device names coincide
-     with those from the `groff' `-T' option.  This is the first
-     command of the prologue.
-
-`xu N<line break>'
-     The `u' stands for UNDERLINE.
-
-     Configure underlining of spaces.  If N is 1, start underlining of
-     spaces; if N is 0, stop underlining of spaces.  This is needed for
-     the `cu' request in nroff mode and is ignored otherwise.  This
-     command is a `gtroff' extension.
-
-`xX ANYTHING<line break>'
-     The `x' stands for X-ESCAPE.
-
-     Send string ANYTHING uninterpreted to the device.  If the line
-     following this command starts with a `+' character this line is
-     interpreted as a continuation line in the following sense.  The
-     `+' is ignored, but a newline character is sent instead to the
-     device, the rest of the line is sent uninterpreted.  The same
-     applies to all following lines until the first character of a line
-     is not a `+' character.  This command is generated by the `gtroff'
-     escape sequence `\X'.  The line-continuing feature is a `gtroff'
-     extension.
-
-
-
-File: groff,  Node: Obsolete Command,  Prev: Device Control Commands,  Up: Command Reference
-
-Obsolete Command
-................
-
-   In AT&T `troff' output, the writing of a single glyph is mostly done
-by a very strange command that combines a horizontal move and a single
-character giving the glyph name.  It doesn't have a command code, but
-is represented by a 3-character argument consisting of exactly 2 digits
-and a character.
-
-DDG
-     Move right DD (exactly two decimal digits) basic units `u', then
-     print glyph G (represented as a single character).
-
-     In `gtroff', arbitrary syntactical space around and within this
-     command is allowed to be added.  Only when a preceding command on
-     the same line ends with an argument of variable length a
-     separating space is obligatory.  In AT&T `troff', large clusters
-     of these and other commands are used, mostly without spaces; this
-     made such output almost unreadable.
-
-
-   For modern high-resolution devices, this command does not make sense
-because the width of the glyphs can become much larger than two decimal
-digits.  In `gtroff', this is only used for the devices `X75',
-`X75-12', `X100', and `X100-12'.  For other devices, the commands `t'
-and `u' provide a better functionality.
-
-
-File: groff,  Node: Intermediate Output Examples,  Next: Output Language Compatibility,  Prev: Command Reference,  Up: gtroff Output
-
-Intermediate Output Examples
-----------------------------
-
-   This section presents the intermediate output generated from the same
-input for three different devices.  The input is the sentence `hell
-world' fed into `gtroff' on the command line.
-
-High-resolution device `ps'
-     This is the standard output of `gtroff' if no `-T' option is given.
-
-          shell> echo "hell world" | groff -Z -T ps
-          
-          x T ps
-          x res 72000 1 1
-          x init
-          p1
-          x font 5 TR
-          f5
-          s10000
-          V12000
-          H72000
-          thell
-          wh2500
-          tw
-          H96620
-          torld
-          n12000 0
-          x trailer
-          V792000
-          x stop
-
-     This output can be fed into `grops' to get its representation as a
-     PostScript file.
-
-Low-resolution device `latin1'
-     This is similar to the high-resolution device except that the
-     positioning is done at a minor scale.  Some comments (lines
-     starting with `#') were added for clarification; they were not
-     generated by the formatter.
-
-          shell> echo "hell world" | groff -Z -T latin1
-          
-          # prologue
-          x T latin1
-          x res 240 24 40
-          x init
-          # begin a new page
-          p1
-          # font setup
-          x font 1 R
-          f1
-          s10
-          # initial positioning on the page
-          V40
-          H0
-          # write text `hell'
-          thell
-          # inform about space, and issue a horizontal jump
-          wh24
-          # write text `world'
-          tworld
-          # announce line break, but do nothing because ...
-          n40 0
-          # ... the end of the document has been reached
-          x trailer
-          V2640
-          x stop
-
-     This output can be fed into `grotty' to get a formatted text
-     document.
-
-AT&T `troff' output
-     Since a computer monitor has a very low resolution compared to
-     modern printers the intermediate output for the X Window devices
-     can use the jump-and-write command with its 2-digit displacements.
-
-          shell> echo "hell world" | groff -Z -T X100
-          
-          x T X100
-          x res 100 1 1
-          x init
-          p1
-          x font 5 TR
-          f5
-          s10
-          V16
-          H100
-          # write text with jump-and-write commands
-          ch07e07l03lw06w11o07r05l03dh7
-          n16 0
-          x trailer
-          V1100
-          x stop
-
-     This output can be fed into `xditview' or `gxditview' for
-     displaying in X.
-
-     Due to the obsolete jump-and-write command, the text clusters in
-     the AT&T `troff' output are almost unreadable.
-
-
-
-File: groff,  Node: Output Language Compatibility,  Prev: Intermediate Output Examples,  Up: gtroff Output
-
-Output Language Compatibility
------------------------------
-
-   The intermediate output language of AT&T `troff' was first
-documented in the UNIX troff manual, with later additions documented in
-`A Typesetter-indenpendent TROFF', written by Brian Kernighan.
-
-   The `gtroff' intermediate output format is compatible with this
-specification except for the following features.
-
-   * The classical quasi device independence is not yet implemented.
-
-   * The old hardware was very different from what we use today.  So the
-     `groff' devices are also fundamentally different from the ones in
-     AT&T `troff'.  For example, the AT&T PostScript device is called
-     `post' and has a resolution of only 720 units per inch, suitable
-     for printers 20 years ago, while `groff''s `ps' device has a
-     resolution of 72000 units per inch.  Maybe, by implementing some
-     rescaling mechanism similar to the classical quasi device
-     independence, `groff' could emulate AT&T's `post' device.
-
-   * The B-spline command `D~' is correctly handled by the intermediate
-     output parser, but the drawing routines aren't implemented in some
-     of the postprocessor programs.
-
-   * The argument of the commands `s' and `x H' has the implicit unit
-     scaled point `z' in `gtroff', while AT&T `troff' has point (`p').
-     This isn't an incompatibility but a compatible extension, for both
-     units coincide for all devices without a `sizescale' parameter in
-     the `DESC' file, including all postprocessors from AT&T and
-     `groff''s text devices.  The few `groff' devices with a
-     `sizescale' parameter either do not exist for AT&T `troff', have a
-     different name, or seem to have a different resolution.  So
-     conflicts are very unlikely.
-
-   * The position changing after the commands `Dp', `DP', and `Dt' is
-     illogical, but as old versions of `gtroff' used this feature it is
-     kept for compatibility reasons.
-
-
-
-File: groff,  Node: Font Files,  Prev: gtroff Output,  Up: File formats
-
-Font Files
-==========
-
-   The `gtroff' font format is roughly a superset of the `ditroff' font
-format (as used in later versions of AT&T `troff' and its descendants).
-Unlike the `ditroff' font format, there is no associated binary
-format; all files are text files.(1) (*note Font Files-Footnote-1::)
-The font files for device NAME are stored in a directory `devNAME'.
-There are two types of file: a device description file called `DESC'
-and for each font F a font file called `F'.
-
-* Menu:
-
-* DESC File Format::
-* Font File Format::
-
-
-File: groff,  Node: Font Files-Footnotes,  Up: Font Files
-
-   (1) Plan 9 `troff' has also abandoned the binary format.
-
diff --git a/contrib/groff/doc/groff-9 b/contrib/groff/doc/groff-9
deleted file mode 100644
index 3f653d3..0000000
--- a/contrib/groff/doc/groff-9
+++ /dev/null
@@ -1,985 +0,0 @@
-This is groff, produced by makeinfo version 4.3d from ./groff.texinfo.
-
-This manual documents GNU `troff' version 1.19.
-
-   Copyright (C) 1994-2000, 2001, 2002, 2003 Free Software Foundation,
-Inc.
-
-     Permission is granted to copy, distribute and/or modify this
-     document under the terms of the GNU Free Documentation License,
-     Version 1.1 or any later version published by the Free Software
-     Foundation; with no Invariant Sections, with the Front-Cover texts
-     being `A GNU Manual," and with the Back-Cover Texts as in (a)
-     below.  A copy of the license is included in the section entitled
-     `GNU Free Documentation License."
-
-     (a) The FSF's Back-Cover Text is: `You have freedom to copy and
-     modify this GNU Manual, like GNU software.  Copies published by
-     the Free Software Foundation raise funds for GNU development."
-   
-INFO-DIR-SECTION Typesetting
-START-INFO-DIR-ENTRY
-* Groff: (groff).               The GNU troff document formatting system.
-END-INFO-DIR-ENTRY
-
-
-File: groff,  Node: DESC File Format,  Next: Font File Format,  Prev: Font Files,  Up: Font Files
-
-`DESC' File Format
-------------------
-
-   The `DESC' file can contain the following types of line.  Except for
-the `charset' keyword which must comes last (if at all), the order of
-the lines is not important.
-
-`res N'
-     There are N machine units per inch.
-
-`hor N'
-     The horizontal resolution is N machine units.  All horizontal
-     quantities are rounded to be multiples of this value.
-
-`vert N'
-     The vertical resolution is N machine units.  All vertical
-     quantities are rounded to be multiples of this value.
-
-`sizescale N'
-     The scale factor for point sizes.  By default this has a value
-     of 1.  One scaled point is equal to one point/N.  The arguments to
-     the `unitwidth' and `sizes' commands are given in scaled points.
-     *Note Fractional Type Sizes::, for more information.
-
-`unitwidth N'
-     Quantities in the font files are given in machine units for fonts
-     whose point size is N scaled points.
-
-`prepro PROGRAM'
-     Call PROGRAM as a preprocessor.  Currently, this keyword is used
-     by `groff' with option `-Thtml' only.
-
-`postpro PROGRAM'
-     Call PROGRAM as a postprocessor.  For example, the line
-
-
-          postpro grodvi
-
-     in the file `devdvi/DESC' makes `groff' call `grodvi' if option
-     `-Tdvi' is given (and `-Z' isn't used).
-
-`tcommand'
-     This means that the postprocessor can handle the `t' and `u'
-     intermediate output commands.
-
-`sizes S1 S2 ... SN 0'
-     This means that the device has fonts at S1, S2, ...  SN scaled
-     points.  The list of sizes must be terminated by 0 (this is digit
-     zero).  Each SI can also be a range of sizes M-N.  The list can
-     extend over more than one line.
-
-`styles S1 S2 ... SM'
-     The first M font positions are associated with styles S1 ... SM.
-
-`fonts N F1 F2 F3 ... FN'
-     Fonts F1 ... FN are mounted in the font positions M+1, ..., M+N
-     where M is the number of styles.  This command may extend over
-     more than one line.  A font name of 0 means no font is mounted on
-     the corresponding font position.
-
-`family FAM'
-     The default font family is FAM.
-
-`use_charnames_in_special'
-     This command indicates that `gtroff' should encode special
-     characters inside special commands.  Currently, this is only used
-     by the HTML output device.  *Note Postprocessor Access::.
-
-`papersize STRING ...'
-     Select a paper size.  Valid values for STRING are the ISO paper
-     types `A0'-`A7', `B0'-`B7', `C0'-`C7', `D0'-`D7', `DL', and the US
-     paper types `letter', `legal', `tabloid', `ledger', `statement',
-     `executive', `com10', and `monarch'.  Case is not significant for
-     STRING if it holds predefined paper types.  Alternatively, STRING
-     can be a file name (e.g. `/etc/papersize'); if the file can be
-     opened, `groff' reads the first line and tests for the above paper
-     sizes.  Finally, STRING can be a custom paper size in the format
-     `LENGTH,WIDTH' (no spaces before and after the comma).  Both
-     LENGTH and WIDTH must have a unit appended; valid values are `i'
-     for inches, `C' for centimeters, `p' for points, and `P' for
-     picas.  Example: `12c,235p'.  An argument which starts with a
-     digit is always treated as a custom paper format.  `papersize'
-     sets both the vertical and horizontal dimension of the output
-     medium.
-
-     More than one argument can be specified; `groff' scans from left to
-     right and uses the first valid paper specification.
-
-`pass_filenames'
-     Tell `gtroff' to emit the name of the source file currently being
-     processed.  This is achieved by the intermediate output command
-     `F'.  Currently, this is only used by the HTML output device.
-
-`print PROGRAM'
-     Use PROGRAM as a spooler program for printing.  If omitted, the
-     `-l' and `-L' options of `groff' are ignored.
-
-`charset'
-     This line and everything following in the file are ignored.  It is
-     allowed for the sake of backwards compatibility.
-
-   The `res', `unitwidth', `fonts', and `sizes' lines are mandatory.
-Other commands are ignored by `gtroff' but may be used by
-postprocessors to store arbitrary information about the device in the
-`DESC' file.
-
-   Here a list of obsolete keywords which are recognized by `groff' but
-completely ignored: `spare1', `spare2', `biggestfont'.
-
-
-File: groff,  Node: Font File Format,  Prev: DESC File Format,  Up: Font Files
-
-Font File Format
-----------------
-
-   A "font file", also (and probably better) called a "font description
-file", has two sections.  The first section is a sequence of lines each
-containing a sequence of blank delimited words; the first word in the
-line is a key, and subsequent words give a value for that key.
-
-`name F'
-     The name of the font is F.
-
-`spacewidth N'
-     The normal width of a space is N.
-
-`slant N'
-     The glyphs of the font have a slant of N degrees.  (Positive means
-     forward.)
-
-`ligatures LIG1 LIG2 ... LIGN [0]'
-     Glyphs LIG1, LIG2, ..., LIGN are ligatures; possible ligatures are
-     `ff', `fi', `fl', `ffi' and `ffl'.  For backwards compatibility,
-     the list of ligatures may be terminated with a 0.  The list of
-     ligatures may not extend over more than one line.
-
-`special'
-     The font is "special"; this means that when a glyph is requested
-     that is not present in the current font, it is searched for in any
-     special fonts that are mounted.
-
-   Other commands are ignored by `gtroff' but may be used by
-postprocessors to store arbitrary information about the font in the font
-file.
-
-   The first section can contain comments which start with the `#'
-character and extend to the end of a line.
-
-   The second section contains one or two subsections.  It must contain
-a `charset' subsection and it may also contain a `kernpairs'
-subsection.  These subsections can appear in any order.  Each
-subsection starts with a word on a line by itself.
-
-   The word `charset' starts the character set subsection.(1) (*note
-Font File Format-Footnote-1::)  The `charset' line is followed by a
-sequence of lines.  Each line gives information for one glyph.  A line
-comprises a number of fields separated by blanks or tabs.  The format is
-
-     NAME METRICS TYPE CODE [ENTITY-NAME] [`--' COMMENT]
-
-NAME identifies the glyph name(2) (*note Font File Format-Footnote-2::):
-If NAME is a single character C then it corresponds to the `gtroff'
-input character C; if it is of the form `\C' where C is a single
-character, then it corresponds to the special character `\[C]';
-otherwise it corresponds to the special character `\[NAME]'.  If it is
-exactly two characters XX it can be entered as `\(XX'.  Note that
-single-letter special characters can't be accessed as `\C'; the only
-exception is `\-' which is identical to `\[-]'.
-
-   `gtroff' supports 8-bit input characters; however some utilities
-have difficulties with eight-bit characters.  For this reason, there is
-a convention that the entity name `charN' is equivalent to the single
-input character whose code is N.  For example, `char163' would be
-equivalent to the character with code 163 which is the pounds sterling
-sign in the ISO Latin-1 character set.  You shouldn't use `charN'
-entities in font description files since they are related to input, not
-output.  Otherwise, you get hard-coded connections between input and
-output encoding which prevents use of different (input) character sets.
-
-   The name `---' is special and indicates that the glyph is unnamed;
-such glyphs can only be used by means of the `\N' escape sequence in
-`gtroff'.
-
-   The TYPE field gives the glyph type:
-
-`1'
-     the glyph has a descender, for example, `p';
-
-`2'
-     the glyph has an ascender, for example, `b';
-
-`3'
-     the glyph has both an ascender and a descender, for example, `('.
-
-   The CODE field gives the code which the postprocessor uses to print
-the glyph.  The glyph can also be input to `gtroff' using this code by
-means of the `\N' escape sequence.  CODE can be any integer.  If it
-starts with `0' it is interpreted as octal; if it starts with `0x' or
-`0X' it is interpreted as hexadecimal.  Note, however, that the `\N'
-escape sequence only accepts a decimal integer.
-
-   The ENTITY-NAME field gives an ASCII string identifying the glyph
-which the postprocessor uses to print the `gtroff' glyph NAME.  This
-field is optional and has been introduced so that the HTML device
-driver can encode its character set.  For example, the glyph `\[Po]' is
-represented as `&pound;' in HTML 4.0.
-
-   Anything on the line after the ENTITY-NAME field resp. after `--'
-will be ignored.
-
-   The METRICS field has the form:
-
-     WIDTH[`,'HEIGHT[`,'DEPTH[`,'ITALIC-CORRECTION
-       [`,'LEFT-ITALIC-CORRECTION[`,'SUBSCRIPT-CORRECTION]]]]]
-
-There must not be any spaces between these subfields (it has been split
-here into two lines for better legibility only).  Missing subfields are
-assumed to be 0.  The subfields are all decimal integers.  Since there
-is no associated binary format, these values are not required to fit
-into a variable of type `char' as they are in `ditroff'.  The WIDTH
-subfield gives the width of the glyph.  The HEIGHT subfield gives the
-height of the glyph (upwards is positive); if a glyph does not extend
-above the baseline, it should be given a zero height, rather than a
-negative height.  The DEPTH subfield gives the depth of the glyph, that
-is, the distance from the baseline to the lowest point below the
-baseline to which the glyph extends (downwards is positive); if a glyph
-does not extend below the baseline, it should be given a zero depth,
-rather than a negative depth.  The ITALIC-CORRECTION subfield gives the
-amount of space that should be added after the glyph when it is
-immediately to be followed by a glyph from a roman font.  The
-LEFT-ITALIC-CORRECTION subfield gives the amount of space that should
-be added before the glyph when it is immediately to be preceded by a
-glyph from a roman font.  The SUBSCRIPT-CORRECTION gives the amount of
-space that should be added after a glyph before adding a subscript.
-This should be less than the italic correction.
-
-   A line in the `charset' section can also have the format
-
-
-     NAME "
-
-This indicates that NAME is just another name for the glyph mentioned
-in the preceding line.
-
-   The word `kernpairs' starts the kernpairs section.  This contains a
-sequence of lines of the form:
-
-
-     C1 C2 N
-
-This means that when glyph C1 appears next to glyph C2 the space
-between them should be increased by N.  Most entries in the kernpairs
-section have a negative value for N.
-
-
-File: groff,  Node: Font File Format-Footnotes,  Up: Font File Format
-
-   (1) This keyword is misnamed since it starts a list of ordered
-glyphs, not characters.
-
-   (2) The distinction between input, characters, and output, glyphs,
-is not clearly separated in the terminology of `groff'; for example,
-the `char' request should be called `glyph' since it defines an output
-entity.
-
-
-File: groff,  Node: Installation,  Next: Copying This Manual,  Prev: File formats,  Up: Top
-
-Installation
-************
-
-
-File: groff,  Node: Copying This Manual,  Next: Request Index,  Prev: Installation,  Up: Top
-
-Copying This Manual
-*******************
-
-* Menu:
-
-* GNU Free Documentation License::  License for copying this manual.
-
-
-File: groff,  Node: GNU Free Documentation License,  Up: Copying This Manual
-
-GNU Free Documentation License
-==============================
-
-                        Version 1.1, March 2000
-     Copyright (C) 2000 Free Software Foundation, Inc.
-     59 Temple Place, Suite 330, Boston, MA  02111-1307, USA
-     
-     Everyone is permitted to copy and distribute verbatim copies
-     of this license document, but changing it is not allowed.
-
-  0. PREAMBLE
-
-     The purpose of this License is to make a manual, textbook, or other
-     written document "free" in the sense of freedom: to assure everyone
-     the effective freedom to copy and redistribute it, with or without
-     modifying it, either commercially or noncommercially.  Secondarily,
-     this License preserves for the author and publisher a way to get
-     credit for their work, while not being considered responsible for
-     modifications made by others.
-
-     This License is a kind of "copyleft", which means that derivative
-     works of the document must themselves be free in the same sense.
-     It complements the GNU General Public License, which is a copyleft
-     license designed for free software.
-
-     We have designed this License in order to use it for manuals for
-     free software, because free software needs free documentation: a
-     free program should come with manuals providing the same freedoms
-     that the software does.  But this License is not limited to
-     software manuals; it can be used for any textual work, regardless
-     of subject matter or whether it is published as a printed book.
-     We recommend this License principally for works whose purpose is
-     instruction or reference.
-
-  1. APPLICABILITY AND DEFINITIONS
-
-     This License applies to any manual or other work that contains a
-     notice placed by the copyright holder saying it can be distributed
-     under the terms of this License.  The "Document", below, refers to
-     any such manual or work.  Any member of the public is a licensee,
-     and is addressed as "you".
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-     The "Invariant Sections" are certain Secondary Sections whose
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-     listed, as Front-Cover Texts or Back-Cover Texts, in the notice
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-  2. VERBATIM COPYING
-
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-     commercially or noncommercially, provided that this License, the
-     copyright notices, and the license notice saying this License
-     applies to the Document are reproduced in all copies, and that you
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-  3. COPYING IN QUANTITY
-
-     If you publish printed copies of the Document numbering more than
-     100, and the Document's license notice requires Cover Texts, you
-     must enclose the copies in covers that carry, clearly and legibly,
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-     satisfy these conditions, can be treated as verbatim copying in
-     other respects.
-
-     If the required texts for either cover are too voluminous to fit
-     legibly, you should put the first ones listed (as many as fit
-     reasonably) on the actual cover, and continue the rest onto
-     adjacent pages.
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-     If you publish or distribute Opaque copies of the Document
-     numbering more than 100, you must either include a
-     machine-readable Transparent copy along with each Opaque copy, or
-     state in or with each Opaque copy a publicly-accessible
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-     of the Document, free of added material, which the general
-     network-using public has access to download anonymously at no
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-     begin distribution of Opaque copies in quantity, to ensure that
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-     location until at least one year after the last time you
-     distribute an Opaque copy (directly or through your agents or
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-
-     It is requested, but not required, that you contact the authors of
-     the Document well before redistributing any large number of
-     copies, to give them a chance to provide you with an updated
-     version of the Document.
-
-  4. MODIFICATIONS
-
-     You may copy and distribute a Modified Version of the Document
-     under the conditions of sections 2 and 3 above, provided that you
-     release the Modified Version under precisely this License, with
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-     licensing distribution and modification of the Modified Version to
-     whoever possesses a copy of it.  In addition, you must do these
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-
-       A. Use in the Title Page (and on the covers, if any) a title
-          distinct from that of the Document, and from those of
-          previous versions (which should, if there were any, be listed
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-
-       B. List on the Title Page, as authors, one or more persons or
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-          authors, if it has less than five).
-
-       C. State on the Title page the name of the publisher of the
-          Modified Version, as the publisher.
-
-       D. Preserve all the copyright notices of the Document.
-
-       E. Add an appropriate copyright notice for your modifications
-          adjacent to the other copyright notices.
-
-       F. Include, immediately after the copyright notices, a license
-          notice giving the public permission to use the Modified
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-          the Addendum below.
-
-       G. Preserve in that license notice the full lists of Invariant
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-          license notice.
-
-       H. Include an unaltered copy of this License.
-
-       I. Preserve the section entitled "History", and its title, and
-          add to it an item stating at least the title, year, new
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-          the Title Page.  If there is no section entitled "History" in
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-       J. Preserve the network location, if any, given in the Document
-          for public access to a Transparent copy of the Document, and
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-          it refers to gives permission.
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-       K. In any section entitled "Acknowledgments" or "Dedications",
-          preserve the section's title, and preserve in the section all
-          the substance and tone of each of the contributor
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-       L. Preserve all the Invariant Sections of the Document,
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-          or the equivalent are not considered part of the section
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-       M. Delete any section entitled "Endorsements".  Such a section
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-          conflict in title with any Invariant Section.
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-  5. COMBINING DOCUMENTS
-
-     You may combine the Document with other documents released under
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-     must delete all sections entitled "Endorsements."
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-  6. COLLECTIONS OF DOCUMENTS
-
-     You may make a collection consisting of the Document and other
-     documents released under this License, and replace the individual
-     copies of this License in the various documents with a single copy
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-     You may extract a single document from such a collection, and
-     distribute it individually under this License, provided you insert
-     a copy of this License into the extracted document, and follow
-     this License in all other respects regarding verbatim copying of
-     that document.
-
-  7. AGGREGATION WITH INDEPENDENT WORKS
-
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-     separate and independent documents or works, in or on a volume of
-     a storage or distribution medium, does not as a whole count as a
-     Modified Version of the Document, provided no compilation
-     copyright is claimed for the compilation.  Such a compilation is
-     called an "aggregate", and this License does not apply to the
-     other self-contained works thus compiled with the Document, on
-     account of their being thus compiled, if they are not themselves
-     derivative works of the Document.
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-     If the Cover Text requirement of section 3 is applicable to these
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-  8. TRANSLATION
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-     Translation is considered a kind of modification, so you may
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-
-  9. TERMINATION
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-     You may not copy, modify, sublicense, or distribute the Document
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-     void, and will automatically terminate your rights under this
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-     from you under this License will not have their licenses
-     terminated so long as such parties remain in full compliance.
-
- 10. FUTURE REVISIONS OF THIS LICENSE
-
-     The Free Software Foundation may publish new, revised versions of
-     the GNU Free Documentation License from time to time.  Such new
-     versions will be similar in spirit to the present version, but may
-     differ in detail to address new problems or concerns.  See
-     `http://www.gnu.org/copyleft/'.
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-     Each version of the License is given a distinguishing version
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-     you may choose any version ever published (not as a draft) by the
-     Free Software Foundation.
-
-ADDENDUM: How to use this License for your documents
-----------------------------------------------------
-
-   To use this License in a document you have written, include a copy of
-the License in the document and put the following copyright and license
-notices just after the title page:
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-       Copyright (C)  YEAR  YOUR NAME.
-       Permission is granted to copy, distribute and/or modify this document
-       under the terms of the GNU Free Documentation License, Version 1.1
-       or any later version published by the Free Software Foundation;
-       with the Invariant Sections being LIST THEIR TITLES, with the
-       Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST.
-       A copy of the license is included in the section entitled ``GNU
-       Free Documentation License''.
-
-   If you have no Invariant Sections, write "with no Invariant Sections"
-instead of saying which ones are invariant.  If you have no Front-Cover
-Texts, write "no Front-Cover Texts" instead of "Front-Cover Texts being
-LIST"; likewise for Back-Cover Texts.
-
-   If your document contains nontrivial examples of program code, we
-recommend releasing these examples in parallel under your choice of
-free software license, such as the GNU General Public License, to
-permit their use in free software.
-
-
-File: groff,  Node: Request Index,  Next: Escape Index,  Prev: Copying This Manual,  Up: Top
-
-Request Index
-*************
-
-   Requests appear without the leading control character (normally
-either `.' or `'').
-
-* Menu:
-
-* ab:                                    Debugging.
-* ad:                                    Manipulating Filling and Adjusting.
-* af:                                    Assigning Formats.
-* aln:                                   Setting Registers.
-* als:                                   Strings.
-* am:                                    Writing Macros.
-* am1:                                   Writing Macros.
-* ami:                                   Writing Macros.
-* as:                                    Strings.
-* as1:                                   Strings.
-* asciify:                               Diversions.
-* backtrace:                             Debugging.
-* bd:                                    Artificial Fonts.
-* blm:                                   Blank Line Traps.
-* box:                                   Diversions.
-* boxa:                                  Diversions.
-* bp:                                    Page Control.
-* br:                                    Manipulating Filling and Adjusting.
-* break:                                 while.
-* brp:                                   Manipulating Filling and Adjusting.
-* c2:                                    Character Translations.
-* cc:                                    Character Translations.
-* ce:                                    Manipulating Filling and Adjusting.
-* cf:                                    I/O.
-* cflags:                                Using Symbols.
-* ch:                                    Page Location Traps.
-* char:                                  Using Symbols.
-* chop:                                  Strings.
-* close:                                 I/O.
-* color:                                 Colors.
-* composite:                             Using Symbols.
-* continue:                              while.
-* cp:                                    Implementation Differences.
-* cs:                                    Artificial Fonts.
-* cu:                                    Artificial Fonts.
-* da:                                    Diversions.
-* de:                                    Writing Macros.
-* de1:                                   Writing Macros.
-* defcolor:                              Colors.
-* dei:                                   Writing Macros.
-* di:                                    Diversions.
-* do:                                    Implementation Differences.
-* ds:                                    Strings.
-* ds1:                                   Strings.
-* dt:                                    Diversion Traps.
-* ec:                                    Character Translations.
-* ecr:                                   Character Translations.
-* ecs:                                   Character Translations.
-* el:                                    if-else.
-* em:                                    End-of-input Traps.
-* eo:                                    Character Translations.
-* ev:                                    Environments.
-* evc:                                   Environments.
-* ex:                                    Debugging.
-* fam:                                   Font Families.
-* fc:                                    Fields.
-* fchar:                                 Using Symbols.
-* fi:                                    Manipulating Filling and Adjusting.
-* fl:                                    Debugging.
-* fp:                                    Font Positions.
-* fschar:                                Using Symbols.
-* fspecial:                              Special Fonts.
-* ft <1>:                                Font Positions.
-* ft:                                    Changing Fonts.
-* ftr:                                   Changing Fonts.
-* hc:                                    Manipulating Hyphenation.
-* hcode:                                 Manipulating Hyphenation.
-* hla:                                   Manipulating Hyphenation.
-* hlm:                                   Manipulating Hyphenation.
-* hpf:                                   Manipulating Hyphenation.
-* hpfa:                                  Manipulating Hyphenation.
-* hpfcode:                               Manipulating Hyphenation.
-* hw:                                    Manipulating Hyphenation.
-* hy:                                    Manipulating Hyphenation.
-* hym:                                   Manipulating Hyphenation.
-* hys:                                   Manipulating Hyphenation.
-* ie:                                    if-else.
-* if:                                    if-else.
-* ig:                                    Comments.
-* in:                                    Line Layout.
-* it:                                    Input Line Traps.
-* itc:                                   Input Line Traps.
-* kern:                                  Ligatures and Kerning.
-* lc:                                    Leaders.
-* length:                                Strings.
-* lf:                                    Debugging.
-* lg:                                    Ligatures and Kerning.
-* linetabs:                              Tabs and Fields.
-* ll:                                    Line Layout.
-* ls:                                    Manipulating Spacing.
-* lt:                                    Page Layout.
-* mc:                                    Miscellaneous.
-* mk:                                    Page Motions.
-* mso:                                   I/O.
-* na:                                    Manipulating Filling and Adjusting.
-* ne:                                    Page Control.
-* nf:                                    Manipulating Filling and Adjusting.
-* nh:                                    Manipulating Hyphenation.
-* nm:                                    Miscellaneous.
-* nn:                                    Miscellaneous.
-* nop:                                   if-else.
-* nr <1>:                                Auto-increment.
-* nr:                                    Setting Registers.
-* nroff:                                 Troff and Nroff Mode.
-* ns:                                    Manipulating Spacing.
-* nx:                                    I/O.
-* open:                                  I/O.
-* opena:                                 I/O.
-* os:                                    Page Control.
-* output:                                Diversions.
-* pc:                                    Page Layout.
-* pi:                                    I/O.
-* pl:                                    Page Layout.
-* pm:                                    Debugging.
-* pn:                                    Page Layout.
-* pnr:                                   Debugging.
-* po:                                    Line Layout.
-* ps:                                    Changing Type Sizes.
-* psbb:                                  Miscellaneous.
-* pso:                                   I/O.
-* ptr:                                   Debugging.
-* pvs:                                   Changing Type Sizes.
-* rchar:                                 Using Symbols.
-* rd:                                    I/O.
-* return:                                Writing Macros.
-* rfschar:                               Using Symbols.
-* rj:                                    Manipulating Filling and Adjusting.
-* rm:                                    Strings.
-* rn:                                    Strings.
-* rnn:                                   Setting Registers.
-* rr:                                    Setting Registers.
-* rs:                                    Manipulating Spacing.
-* rt:                                    Page Motions.
-* schar:                                 Using Symbols.
-* shc:                                   Manipulating Hyphenation.
-* shift:                                 Parameters.
-* sizes:                                 Changing Type Sizes.
-* so:                                    I/O.
-* sp:                                    Manipulating Spacing.
-* special:                               Special Fonts.
-* spreadwarn:                            Debugging.
-* ss:                                    Manipulating Filling and Adjusting.
-* sty:                                   Font Families.
-* substring:                             Strings.
-* sv:                                    Page Control.
-* sy:                                    I/O.
-* ta:                                    Tabs and Fields.
-* tc:                                    Tabs and Fields.
-* ti:                                    Line Layout.
-* tkf:                                   Ligatures and Kerning.
-* tl:                                    Page Layout.
-* tm:                                    Debugging.
-* tm1:                                   Debugging.
-* tmc:                                   Debugging.
-* tr:                                    Character Translations.
-* trf:                                   I/O.
-* trin:                                  Character Translations.
-* trnt:                                  Character Translations.
-* troff:                                 Troff and Nroff Mode.
-* uf:                                    Artificial Fonts.
-* ul:                                    Artificial Fonts.
-* unformat:                              Diversions.
-* vpt:                                   Page Location Traps.
-* vs:                                    Changing Type Sizes.
-* warn:                                  Debugging.
-* warnscale:                             Debugging.
-* wh:                                    Page Location Traps.
-* while:                                 while.
-* write:                                 I/O.
-* writec:                                I/O.
-* writem:                                I/O.
-
-
-File: groff,  Node: Escape Index,  Next: Operator Index,  Prev: Request Index,  Up: Top
-
-Escape Index
-************
-
-   Any escape sequence `\X' with X not in the list below emits a
-warning, printing glyph X.
-
-* Menu:
-
-* \:                                     Using Symbols.
-* \!:                                    Diversions.
-* \":                                    Comments.
-* \#:                                    Comments.
-* \$:                                    Parameters.
-* \$*:                                   Parameters.
-* \$0:                                   Parameters.
-* \$@:                                   Parameters.
-* \%:                                    Manipulating Hyphenation.
-* \&:                                    Ligatures and Kerning.
-* \':                                    Using Symbols.
-* \):                                    Ligatures and Kerning.
-* \*:                                    Strings.
-* \,:                                    Ligatures and Kerning.
-* \-:                                    Using Symbols.
-* \.:                                    Character Translations.
-* \/:                                    Ligatures and Kerning.
-* \0:                                    Page Motions.
-* \<colon>:                              Manipulating Hyphenation.
-* \<RET>:                                Line Control.
-* \<SP>:                                 Page Motions.
-* \?:                                    Diversions.
-* \\:                                    Character Translations.
-* \^:                                    Page Motions.
-* \`:                                    Using Symbols.
-* \a:                                    Leaders.
-* \A:                                    Identifiers.
-* \b:                                    Drawing Requests.
-* \B:                                    Expressions.
-* \C:                                    Using Symbols.
-* \c:                                    Line Control.
-* \D:                                    Drawing Requests.
-* \d:                                    Page Motions.
-* \E:                                    Character Translations.
-* \e:                                    Character Translations.
-* \f:                                    Font Positions.
-* \F:                                    Font Families.
-* \f:                                    Changing Fonts.
-* \g:                                    Assigning Formats.
-* \h:                                    Page Motions.
-* \H:                                    Artificial Fonts.
-* \k:                                    Page Motions.
-* \L:                                    Drawing Requests.
-* \l:                                    Drawing Requests.
-* \M:                                    Colors.
-* \m:                                    Colors.
-* \N:                                    Using Symbols.
-* \n <1>:                                Auto-increment.
-* \n:                                    Interpolating Registers.
-* \O:                                    Suppressing output.
-* \o:                                    Page Motions.
-* \p:                                    Manipulating Filling and Adjusting.
-* \r:                                    Page Motions.
-* \R:                                    Setting Registers.
-* \s:                                    Changing Type Sizes.
-* \S:                                    Artificial Fonts.
-* \t:                                    Tabs and Fields.
-* \u:                                    Page Motions.
-* \V:                                    I/O.
-* \v:                                    Page Motions.
-* \w:                                    Page Motions.
-* \X:                                    Postprocessor Access.
-* \x:                                    Manipulating Spacing.
-* \Y:                                    Postprocessor Access.
-* \Z:                                    Page Motions.
-* \z:                                    Page Motions.
-* \{:                                    if-else.
-* \|:                                    Page Motions.
-* \}:                                    if-else.
-* \~:                                    Page Motions.
-
-
-File: groff,  Node: Operator Index,  Next: Register Index,  Prev: Escape Index,  Up: Top
-
-Operator Index
-**************
-
-* Menu:
-
-* !:                                     Expressions.
-* %:                                     Expressions.
-* &:                                     Expressions.
-* (:                                     Expressions.
-* ):                                     Expressions.
-* *:                                     Expressions.
-* +:                                     Expressions.
-* -:                                     Expressions.
-* /:                                     Expressions.
-* <:                                     Expressions.
-* <=:                                    Expressions.
-* <?:                                    Expressions.
-* <colon>:                               Expressions.
-* =:                                     Expressions.
-* ==:                                    Expressions.
-* >:                                     Expressions.
-* >=:                                    Expressions.
-* >?:                                    Expressions.
-
diff --git a/contrib/groff/src/include/groff-getopt.h b/contrib/groff/src/include/groff-getopt.h
deleted file mode 100644
index a30e197..0000000
--- a/contrib/groff/src/include/groff-getopt.h
+++ /dev/null
@@ -1,68 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
-     Written by Werner Lemberg (wl@gnu.org)
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING.  If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-/*
-   This file has to be included from within lib.h instead of getopt.h
-   to avoid problems with picky C++ compilers.
-*/
-
-#ifndef _GROFF_GETOPT_H
-#define _GROFF_GETOPT_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern char *optarg;
-extern int optind;
-extern int opterr;
-extern int optopt;
-
-struct option
-{
-  const char *name;
-  int has_arg;
-  int *flag;
-  int val;
-};
-
-#define no_argument       0
-#define required_argument 1
-#define optional_argument 2
-
-extern int getopt(int, 			// __argc
-		  char *const *,	// __argv
-		  const char *);	// __shortopts
-extern int getopt_long(int,			// __argc
-		       char *const *,		// __argv
-		       const char *,		// __shortopts
-		       const struct option *,	// __longopts
-		       int *);			// __longind
-extern int getopt_long_only(int, 			// __argc
-			    char *const *,		// __argv
-			    const char *,		// __shortopts
-			    const struct option *,	// __longopts
-			    int *);			// __longind
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _GROFF_GETOPT_H */
diff --git a/contrib/groff/src/libs/libgroff/progname.cpp b/contrib/groff/src/libs/libgroff/progname.cpp
deleted file mode 100644
index a70e341..0000000
--- a/contrib/groff/src/libs/libgroff/progname.cpp
+++ /dev/null
@@ -1 +0,0 @@
-const char *program_name = 0;
diff --git a/contrib/groff/src/roff/troff/glyphuni.cpp b/contrib/groff/src/roff/troff/glyphuni.cpp
deleted file mode 100644
index 7e242ce..0000000
--- a/contrib/groff/src/roff/troff/glyphuni.cpp
+++ /dev/null
@@ -1,503 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 2002, 2003
-   Free Software Foundation, Inc.
-     Written by Werner Lemberg <wl@gnu.org>
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING.  If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "lib.h"
-#include "stringclass.h"
-#include "ptable.h"
-
-#include "unicode.h"
-
-struct glyph_to_unicode {
-  char *value;
-};
-
-declare_ptable(glyph_to_unicode)
-implement_ptable(glyph_to_unicode)
-
-PTABLE(glyph_to_unicode) glyph_to_unicode_table;
-
-struct {
-  const char *key;
-  const char *value;
-} glyph_to_unicode_list[] = {
-  { "!", "0021" },
-  { "\"", "0022" },
-  { "dq", "0022" },
-  { "#", "0023" },
-  { "sh", "0023" },
-  { "$", "0024" },
-  { "Do", "0024" },
-  { "%", "0025" },
-  { "&", "0026" },
-  { "aq", "0027" },
-  { "(", "0028" },
-  { ")", "0029" },
-  { "*", "002A" },
-  { "+", "002B" },
-  { "pl", "002B" },
-  { ",", "002C" },
-  { ".", "002E" },
-  { "/", "002F" },
-  { "sl", "002F" },
-  { "0", "0030" },
-  { "1", "0031" },
-  { "2", "0032" },
-  { "3", "0033" },
-  { "4", "0034" },
-  { "5", "0035" },
-  { "6", "0036" },
-  { "7", "0037" },
-  { "8", "0038" },
-  { "9", "0039" },
-  { ":", "003A" },
-  { ";", "003B" },
-  { "<", "003C" },
-  { "=", "003D" },
-  { "eq", "003D" },
-  { ">", "003E" },
-  { "?", "003F" },
-  { "@", "0040" },
-  { "at", "0040" },
-  { "A", "0041" },
-  { "B", "0042" },
-  { "C", "0043" },
-  { "D", "0044" },
-  { "E", "0045" },
-  { "F", "0046" },
-  { "G", "0047" },
-  { "H", "0048" },
-  { "I", "0049" },
-  { "J", "004A" },
-  { "K", "004B" },
-  { "L", "004C" },
-  { "M", "004D" },
-  { "N", "004E" },
-  { "O", "004F" },
-  { "P", "0050" },
-  { "Q", "0051" },
-  { "R", "0052" },
-  { "S", "0053" },
-  { "T", "0054" },
-  { "U", "0055" },
-  { "V", "0056" },
-  { "W", "0057" },
-  { "X", "0058" },
-  { "Y", "0059" },
-  { "Z", "005A" },
-//{ "[", "005B" },
-  { "lB", "005B" },
-//{ "\\", "005C" },
-  { "rs", "005C" },
-//{ "]", "005D" },
-  { "rB", "005D" },
-  { "a^", "005E" },
-  { "^", "005E" },
-  { "ha", "005E" },
-  { "_", "005F" },
-  { "ru", "005F" },
-  { "ul", "005F" },
-//{ "\\`", "0060" },
-  { "ga", "0060" },
-  { "a", "0061" },
-  { "b", "0062" },
-  { "c", "0063" },
-  { "d", "0064" },
-  { "e", "0065" },
-  { "f", "0066" },
-  { "ff", "0066_0066" },
-  { "Fi", "0066_0066_0069" },
-  { "Fl", "0066_0066_006C" },
-  { "fi", "0066_0069" },
-  { "fl", "0066_006C" },
-  { "g", "0067" },
-  { "h", "0068" },
-  { "i", "0069" },
-  { "j", "006A" },
-  { "k", "006B" },
-  { "l", "006C" },
-  { "m", "006D" },
-  { "n", "006E" },
-  { "o", "006F" },
-  { "p", "0070" },
-  { "q", "0071" },
-  { "r", "0072" },
-  { "s", "0073" },
-  { "t", "0074" },
-  { "u", "0075" },
-  { "v", "0076" },
-  { "w", "0077" },
-  { "x", "0078" },
-  { "y", "0079" },
-  { "z", "007A" },
-  { "lC", "007B" },
-  { "{", "007B" },
-  { "ba", "007C" },
-  { "or", "007C" },
-  { "|", "007C" },
-  { "rC", "007D" },
-  { "}", "007D" },
-  { "a~", "007E" },
-  { "~", "007E" },
-  { "ti", "007E" },
-  { "r!", "00A1" },
-  { "ct", "00A2" },
-  { "Po", "00A3" },
-  { "Cs", "00A4" },
-  { "Ye", "00A5" },
-  { "bb", "00A6" },
-  { "sc", "00A7" },
-  { "ad", "00A8" },
-  { "co", "00A9" },
-  { "Of", "00AA" },
-  { "Fo", "00AB" },
-  { "no", "00AC" },
-  { "tno", "00AC" },
-  { "shc", "00AD" },
-  { "rg", "00AE" },
-  { "a-", "00AF" },
-  { "de", "00B0" },
-  { "+-", "00B1" },
-  { "t+-", "00B1" },
-  { "S2", "00B2" },
-  { "S3", "00B3" },
-  { "aa", "00B4" },
-//{ "\\'", "00B4" },
-  { "mc", "00B5" },
-  { "ps", "00B6" },
-  { "pc", "00B7" },
-  { "ac", "00B8" },
-  { "S1", "00B9" },
-  { "Om", "00BA" },
-  { "Fc", "00BB" },
-  { "14", "00BC" },
-  { "12", "00BD" },
-  { "34", "00BE" },
-  { "r?", "00BF" },
-  { "`A", "00C0" },
-  { "'A", "00C1" },
-  { "^A", "00C2" },
-  { "~A", "00C3" },
-  { ":A", "00C4" },
-  { "oA", "00C5" },
-  { "AE", "00C6" },
-  { ",C", "00C7" },
-  { "`E", "00C8" },
-  { "'E", "00C9" },
-  { "^E", "00CA" },
-  { ":E", "00CB" },
-  { "`I", "00CC" },
-  { "'I", "00CD" },
-  { "^I", "00CE" },
-  { ":I", "00CF" },
-  { "-D", "00D0" },
-  { "~N", "00D1" },
-  { "`O", "00D2" },
-  { "'O", "00D3" },
-  { "^O", "00D4" },
-  { "~O", "00D5" },
-  { ":O", "00D6" },
-  { "mu", "00D7" },
-  { "tmu", "00D7" },
-  { "/O", "00D8" },
-  { "`U", "00D9" },
-  { "'U", "00DA" },
-  { "^U", "00DB" },
-  { ":U", "00DC" },
-  { "'Y", "00DD" },
-  { "TP", "00DE" },
-  { "ss", "00DF" },
-  { "`a", "00E0" },
-  { "'a", "00E1" },
-  { "^a", "00E2" },
-  { "~a", "00E3" },
-  { ":a", "00E4" },
-  { "oa", "00E5" },
-  { "ae", "00E6" },
-  { ",c", "00E7" },
-  { "`e", "00E8" },
-  { "'e", "00E9" },
-  { "^e", "00EA" },
-  { ":e", "00EB" },
-  { "`i", "00EC" },
-  { "'i", "00ED" },
-  { "^i", "00EE" },
-  { ":i", "00EF" },
-  { "Sd", "00F0" },
-  { "~n", "00F1" },
-  { "`o", "00F2" },
-  { "'o", "00F3" },
-  { "^o", "00F4" },
-  { "~o", "00F5" },
-  { ":o", "00F6" },
-  { "di", "00F7" },
-  { "tdi", "00F7" },
-  { "/o", "00F8" },
-  { "`u", "00F9" },
-  { "'u", "00FA" },
-  { "^u", "00FB" },
-  { ":u", "00FC" },
-  { "'y", "00FD" },
-  { "Tp", "00FE" },
-  { ":y", "00FF" },
-  { "'C", "0106" },
-  { "'c", "0107" },
-  { ".i", "0131" },
-  { "IJ", "0132" },
-  { "ij", "0133" },
-  { "/L", "0141" },
-  { "/l", "0142" },
-  { "OE", "0152" },
-  { "oe", "0153" },
-  { "vS", "0160" },
-  { "vs", "0161" },
-  { ":Y", "0178" },
-  { "vZ", "017D" },
-  { "vz", "017E" },
-  { "Fn", "0192" },
-  { "ah", "02C7" },
-  { "ab", "02D8" },
-  { "a.", "02D9" },
-  { "ao", "02DA" },
-  { "ho", "02DB" },
-  { "a\"", "02DD" },
-  { "*A", "0391" },
-  { "*B", "0392" },
-  { "*G", "0393" },
-  { "*D", "0394" },
-  { "*E", "0395" },
-  { "*Z", "0396" },
-  { "*Y", "0397" },
-  { "*H", "0398" },
-  { "*I", "0399" },
-  { "*K", "039A" },
-  { "*L", "039B" },
-  { "*M", "039C" },
-  { "*N", "039D" },
-  { "*C", "039E" },
-  { "*O", "039F" },
-  { "*P", "03A0" },
-  { "*R", "03A1" },
-  { "*S", "03A3" },
-  { "*T", "03A4" },
-  { "*U", "03A5" },
-  { "*F", "03A6" },
-  { "*X", "03A7" },
-  { "*Q", "03A8" },
-  { "*W", "03A9" },
-  { "*a", "03B1" },
-  { "*b", "03B2" },
-  { "*g", "03B3" },
-  { "*d", "03B4" },
-  { "*e", "03B5" },
-  { "*z", "03B6" },
-  { "*y", "03B7" },
-  { "*h", "03B8" },
-  { "*i", "03B9" },
-  { "*k", "03BA" },
-  { "*l", "03BB" },
-  { "*m", "03BC" },
-  { "*n", "03BD" },
-  { "*c", "03BE" },
-  { "*o", "03BF" },
-  { "*p", "03C0" },
-  { "*r", "03C1" },
-  { "ts", "03C2" },
-  { "*s", "03C3" },
-  { "*t", "03C4" },
-  { "*u", "03C5" },
-  { "*f", "03C6" },
-  { "*x", "03C7" },
-  { "*q", "03C8" },
-  { "*w", "03C9" },
-  { "+h", "03D1" },
-  { "+f", "03D5" },
-  { "+p", "03D6" },
-  { "+e", "03F5" },
-  { "-", "2010" },
-  { "hy", "2010" },
-  { "en", "2013" },
-  { "em", "2014" },
-  { "`", "2018" },
-  { "oq", "2018" },
-  { "'", "2019" },
-  { "cq", "2019" },
-  { "bq", "201A" },
-  { "lq", "201C" },
-  { "rq", "201D" },
-  { "Bq", "201E" },
-  { "dg", "2020" },
-  { "dd", "2021" },
-  { "bu", "2022" },
-  { "%0", "2030" },
-  { "fm", "2032" },
-  { "sd", "2033" },
-  { "fo", "2039" },
-  { "fc", "203A" },
-  { "rn", "203E" },
-  { "f/", "2044" },
-  { "eu", "20AC" },
-  { "Eu", "20AC" },
-  { "-h", "210F" },
-  { "hbar", "210F" },
-  { "Im", "2111" },
-  { "wp", "2118" },
-  { "Re", "211C" },
-  { "tm", "2122" },
-  { "Ah", "2135" },
-  { "18", "215B" },
-  { "38", "215C" },
-  { "58", "215D" },
-  { "78", "215E" },
-  { "<-", "2190" },
-  { "ua", "2191" },
-  { "->", "2192" },
-  { "da", "2193" },
-  { "<>", "2194" },
-  { "va", "2195" },
-  { "CR", "21B5" },
-  { "lA", "21D0" },
-  { "uA", "21D1" },
-  { "rA", "21D2" },
-  { "dA", "21D3" },
-  { "hA", "21D4" },
-  { "vA", "21D5" },
-  { "fa", "2200" },
-  { "pd", "2202" },
-  { "te", "2203" },
-  { "es", "2205" },
-  { "gr", "2207" },
-  { "mo", "2208" },
-  { "nm", "2209" },
-  { "st", "220B" },
-  { "product", "220F" },
-  { "sum", "2211" },
-//{ "\\-", "2212" },
-  { "mi", "2212" },
-  { "-+", "2213" },
-  { "**", "2217" },
-  { "sr", "221A" },
-  { "pt", "221D" },
-  { "if", "221E" },
-  { "/_", "2220" },
-  { "AN", "2227" },
-  { "OR", "2228" },
-  { "ca", "2229" },
-  { "cu", "222A" },
-  { "is", "222B" },
-  { "integral", "222B" },
-  { "tf", "2234" },
-  { "3d", "2234" },
-  { "ap", "223C" },
-  { "|=", "2243" },
-  { "=~", "2245" },
-  { "~~", "2248" },
-  { "~=", "2248" },
-  { "!=", "2260" },
-  { "==", "2261" },
-  { "ne", "2262" },
-  { "<=", "2264" },
-  { ">=", "2265" },
-  { ">>", "226A" },
-  { "<<", "226B" },
-  { "sb", "2282" },
-  { "sp", "2283" },
-  { "nb", "2284" },
-  { "nc", "2285" },
-  { "ib", "2286" },
-  { "ip", "2287" },
-  { "c+", "2295" },
-  { "c*", "2297" },
-  { "pp", "22A5" },
-  { "md", "22C5" },
-  { "lc", "2308" },
-  { "rc", "2309" },
-  { "lf", "230A" },
-  { "rf", "230B" },
-  { "parenlefttp", "239B" },
-  { "parenleftex", "239C" },
-  { "parenleftbt", "239D" },
-  { "parenrighttp", "239E" },
-  { "parenrightex", "239F" },
-  { "parenrightbt", "23A0" },
-  { "bracketlefttp", "23A1" },
-  { "bracketleftex", "23A2" },
-  { "bracketleftbt", "23A3" },
-  { "bracketrighttp", "23A4" },
-  { "bracketrightex", "23A5" },
-  { "bracketrightbt", "23A6" },
-  { "lt", "23A7" },
-  { "bracelefttp", "23A7" },
-  { "lk", "23A8" },
-  { "braceleftmid", "23A8" },
-  { "lb", "23A9" },
-  { "braceleftbt", "23A9" },
-  { "bv", "23AA" },
-  { "braceex", "23AA" },
-  { "braceleftex", "23AA" },
-  { "bracerightex", "23AA" },
-  { "rt", "23AB" },
-  { "bracerighttp", "23AB" },
-  { "rk", "23AC" },
-  { "bracerightmid", "23AC" },
-  { "rb", "23AD" },
-  { "bracerightbt", "23AD" },
-  { "an", "23AF" },
-  { "br", "2502" },
-  { "rk", "251D" },
-  { "lk", "2525" },
-  { "lt", "256D" },
-  { "rt", "256E" },
-  { "rb", "256F" },
-  { "lb", "2570" },
-  { "sq", "25A1" },
-  { "lz", "25CA" },
-  { "ci", "25CB" },
-  { "lh", "261C" },
-  { "rh", "261E" },
-  { "SP", "2660" },
-  { "CL", "2663" },
-  { "HE", "2665" },
-  { "DI", "2666" },
-  { "OK", "2713" },
-  { "la", "27E8" },
-  { "ra", "27E9" },
-};
-
-// global constructor
-static struct glyph_to_unicode_init {
-  glyph_to_unicode_init();
-} _glyph_to_unicode_init;
-
-glyph_to_unicode_init::glyph_to_unicode_init() {
-  for (unsigned int i = 0;
-       i < sizeof(glyph_to_unicode_list)/sizeof(glyph_to_unicode_list[0]);
-       i++) {
-    glyph_to_unicode *gtu = new glyph_to_unicode[1];
-    gtu->value = (char *)glyph_to_unicode_list[i].value;
-    glyph_to_unicode_table.define(glyph_to_unicode_list[i].key, gtu);
-  }
-}
-
-const char *glyph_name_to_unicode(const char *s)
-{
-  glyph_to_unicode *result = glyph_to_unicode_table.lookup(s);
-  return result ? result->value : 0;
-}
diff --git a/contrib/groff/src/roff/troff/symbol.cpp b/contrib/groff/src/roff/troff/symbol.cpp
deleted file mode 100644
index 09f4c98..0000000
--- a/contrib/groff/src/roff/troff/symbol.cpp
+++ /dev/null
@@ -1,154 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 1989, 1990, 1991, 1992, 2002 Free Software Foundation, Inc.
-     Written by James Clark (jjc@jclark.com)
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING.  If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-
-#include "troff.h"
-#include "symbol.h"
-
-const char **symbol::table = 0;
-int symbol::table_used = 0;
-int symbol::table_size = 0;
-char *symbol::block = 0;
-int symbol::block_size = 0;
-
-const symbol NULL_SYMBOL;
-const symbol EMPTY_SYMBOL("");
-
-#ifdef BLOCK_SIZE
-#undef BLOCK_SIZE
-#endif
-
-const int BLOCK_SIZE = 1024;
-// the table will increase in size as necessary
-// the size will be chosen from the following array
-// add some more if you want
-static const unsigned int table_sizes[] = { 
-  101, 503, 1009, 2003, 3001, 4001, 5003, 10007, 20011, 40009, 80021,
-  160001, 500009, 1000003, 1500007, 2000003, 0 
-};
-const double FULL_MAX = 0.3;	// don't let the table get more than this full
-
-static unsigned int hash_string(const char *p)
-{
-  // compute a hash code; this assumes 32-bit unsigned ints
-  // see p436 of  Compilers by Aho, Sethi & Ullman
-  // give special treatment to two-character names
-  unsigned int hc = 0, g;
-  if (*p != 0) {
-    hc = *p++;
-    if (*p != 0) {
-      hc <<= 7;
-      hc += *p++;
-      for (; *p != 0; p++) {
-	hc <<= 4;
-	hc += *p;
-	if ((g = (hc & 0xf0000000)) == 0) {
-	  hc ^= g >> 24;
-	  hc ^= g;
-	}
-      }
-    }
-  }
-  return hc;
-}
-
-// Tell compiler that a variable is intentionally unused.
-inline void unused(void *) { }
-
-symbol::symbol(const char *p, int how)
-{
-  if (p == 0) {
-    s = 0;
-    return;
-  }
-  if (*p == 0) {
-    s = "";
-    return;
-  }
-  if (table == 0) {
-    table_size = table_sizes[0];
-    table = (const char **)new char*[table_size];
-    for (int i = 0; i < table_size; i++)
-      table[i] = 0;
-    table_used = 0;
-  }
-  unsigned int hc = hash_string(p);
-  const char **pp;
-  for (pp = table + hc % table_size; 
-       *pp != 0; 
-       (pp == table ? pp = table + table_size - 1 : --pp))
-    if (strcmp(p, *pp) == 0) {
-      s = *pp;
-      return;
-    }
-  if (how == MUST_ALREADY_EXIST) {
-    s = 0;
-    return;
-  }
-  if (table_used  >= table_size - 1 || table_used >= table_size*FULL_MAX) {
-    const char **old_table = table;
-    unsigned int old_table_size = table_size;
-    int i;
-    for (i = 1; table_sizes[i] <= old_table_size; i++)
-      if (table_sizes[i] == 0)
-	fatal("too many symbols");
-    table_size = table_sizes[i];
-    table_used = 0;
-    table = (const char **)new char*[table_size];
-    for (i = 0; i < table_size; i++)
-      table[i] = 0;
-    for (pp = old_table + old_table_size - 1; 
-	 pp >= old_table;
-	 --pp) {
-	   symbol temp(*pp, 1); /* insert it into the new table */
-	   unused(&temp);
-	 }
-    a_delete old_table;
-    for (pp = table + hc % table_size;
-	 *pp != 0; 
-	 (pp == table ? pp = table + table_size - 1 : --pp))
-      ;
-  }
-  ++table_used;
-  if (how == DONT_STORE) {
-    s = *pp = p;
-  }
-  else {
-    int len = strlen(p)+1;
-    if (block == 0 || block_size < len) {
-      block_size = len > BLOCK_SIZE ? len : BLOCK_SIZE;
-      block = new char [block_size];
-    }
-    (void)strcpy(block, p);
-    s = *pp = block;
-    block += len;
-    block_size -= len;
-  }
-}
-
-symbol concat(symbol s1, symbol s2)
-{
-  char *buf = new char [strlen(s1.contents()) + strlen(s2.contents()) + 1];
-  strcpy(buf, s1.contents());
-  strcat(buf, s2.contents());
-  symbol res(buf);
-  a_delete buf;
-  return res;
-}
diff --git a/contrib/groff/src/roff/troff/symbol.h b/contrib/groff/src/roff/troff/symbol.h
deleted file mode 100644
index 5b7c9b1..0000000
--- a/contrib/groff/src/roff/troff/symbol.h
+++ /dev/null
@@ -1,80 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 1989, 1990, 1991, 1992, 2002 Free Software Foundation, Inc.
-     Written by James Clark (jjc@jclark.com)
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING.  If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#define DONT_STORE 1
-#define MUST_ALREADY_EXIST 2
-
-class symbol {
-  static const char **table;
-  static int table_used;
-  static int table_size;
-  static char *block;
-  static int block_size;
-  const char *s;
-public:
-  symbol(const char *p, int how = 0);
-  symbol();
-  unsigned long hash() const;
-  int operator ==(symbol) const;
-  int operator !=(symbol) const;
-  const char *contents() const;
-  int is_null() const;
-  int is_empty() const;
-};
-
-
-extern const symbol NULL_SYMBOL;
-extern const symbol EMPTY_SYMBOL;
-
-inline symbol::symbol() : s(0)
-{
-}
-
-inline int symbol::operator==(symbol p) const
-{
-  return s == p.s;
-}
-
-inline int symbol::operator!=(symbol p) const
-{
-  return s != p.s;
-}
-
-inline unsigned long symbol::hash() const
-{
-  return (unsigned long)s;
-}
-
-inline const char *symbol::contents() const
-{
-  return s;
-}
-
-inline int symbol::is_null() const
-{
-  return s == 0;
-}
-
-inline int symbol::is_empty() const
-{
-  return s != 0 && *s == 0;
-}
-
-symbol concat(symbol, symbol);
diff --git a/contrib/groff/src/roff/troff/unicode.cpp b/contrib/groff/src/roff/troff/unicode.cpp
deleted file mode 100644
index 2117463..0000000
--- a/contrib/groff/src/roff/troff/unicode.cpp
+++ /dev/null
@@ -1,67 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 2002
-   Free Software Foundation, Inc.
-     Written by Werner Lemberg <wl@gnu.org>
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING.  If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "lib.h"
-#include "cset.h"
-#include "stringclass.h"
-
-#include "unicode.h"
-
-const char *check_unicode_name(const char *u)
-{
-  if (*u != 'u')
-    return 0;
-  const char *p = ++u;
-  for (;;) {
-    int val = 0;
-    const char *start = p;
-    for (;;) {
-      // only uppercase hex digits allowed
-      if (!csxdigit(*p))
-	return 0;
-      if (csdigit(*p))
-	val = val*0x10 + (*p-'0');
-      else if (csupper(*p))
-	val = val*0x10 + (*p-'A'+10);
-      else
-	return 0;
-      // biggest Unicode value is U+10FFFF
-      if (val > 0x10FFFF)
-	return 0;
-      p++;
-      if (*p == '\0' || *p == '_')
-	break;
-    }
-    // surrogates not allowed
-    if ((val >= 0xD800 && val <= 0xDBFF) || (val >= 0xDC00 && val <= 0xDFFF))
-      return 0;
-    if (val > 0xFFFF) {
-      if (*start == '0')	// no leading zeros allowed if > 0xFFFF
-	return 0;
-    }
-    else if (p - start != 4)	// otherwise, check for exactly 4 hex digits
-      return 0;
-    if (*p == '\0')
-      break;
-    p++;
-  }
-  return u;
-}
diff --git a/contrib/groff/src/roff/troff/unicode.h b/contrib/groff/src/roff/troff/unicode.h
deleted file mode 100644
index 846a70e..0000000
--- a/contrib/groff/src/roff/troff/unicode.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 2002
-   Free Software Foundation, Inc.
-     Written by Werner Lemberg <wl@gnu.org>
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING.  If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-extern const char *glyph_name_to_unicode(const char *);
-extern const char *unicode_to_glyph_name(const char *);
-extern const char *decompose_unicode(const char *);
-
-extern const char *check_unicode_name(const char *);
diff --git a/contrib/groff/src/roff/troff/uniglyph.cpp b/contrib/groff/src/roff/troff/uniglyph.cpp
deleted file mode 100644
index 3428605..0000000
--- a/contrib/groff/src/roff/troff/uniglyph.cpp
+++ /dev/null
@@ -1,503 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 2002, 2003
-   Free Software Foundation, Inc.
-     Written by Werner Lemberg <wl@gnu.org>
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING.  If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "lib.h"
-#include "stringclass.h"
-#include "ptable.h"
-
-#include "unicode.h"
-
-struct unicode_to_glyph {
-  char *value;
-};
-
-declare_ptable(unicode_to_glyph)
-implement_ptable(unicode_to_glyph)
-
-PTABLE(unicode_to_glyph) unicode_to_glyph_table;
-
-struct {
-  const char *key;
-  const char *value;
-} unicode_to_glyph_list[] = {
-  { "0021", "!" },
-//{ "0022", "\"" },
-  { "0022", "dq" },
-//{ "0023", "#" },
-  { "0023", "sh" },
-//{ "0024", "$" },
-  { "0024", "Do" },
-  { "0025", "%" },
-  { "0026", "&" },
-  { "0027", "aq" },
-  { "0028", "(" },
-  { "0029", ")" },
-  { "002A", "*" },
-//{ "002B", "+" },
-  { "002B", "pl" },
-  { "002C", "," },
-  { "002E", "." },
-//{ "002F", "/" },
-  { "002F", "sl" },
-  { "0030", "0" },
-  { "0031", "1" },
-  { "0032", "2" },
-  { "0033", "3" },
-  { "0034", "4" },
-  { "0035", "5" },
-  { "0036", "6" },
-  { "0037", "7" },
-  { "0038", "8" },
-  { "0039", "9" },
-  { "003A", ":" },
-  { "003B", ";" },
-  { "003C", "<" },
-//{ "003D", "=" },
-  { "003D", "eq" },
-  { "003D_0338", "!=" },
-  { "003E", ">" },
-  { "003F", "?" },
-//{ "0040", "@" },
-  { "0040", "at" },
-  { "0041", "A" },
-  { "0041_0300", "`A" },
-  { "0041_0301", "'A" },
-  { "0041_0302", "^A" },
-  { "0041_0303", "~A" },
-  { "0041_0308", ":A" },
-  { "0041_030A", "oA" },
-  { "0042", "B" },
-  { "0043", "C" },
-  { "0043_0301", "'C" },
-  { "0043_0327", ",C" },
-  { "0044", "D" },
-  { "0045", "E" },
-  { "0045_0300", "`E" },
-  { "0045_0301", "'E" },
-  { "0045_0302", "^E" },
-  { "0045_0308", ":E" },
-  { "0046", "F" },
-  { "0047", "G" },
-  { "0048", "H" },
-  { "0049", "I" },
-  { "0049_0300", "`I" },
-  { "0049_0301", "'I" },
-  { "0049_0302", "^I" },
-  { "0049_0308", ":I" },
-  { "004A", "J" },
-  { "004B", "K" },
-  { "004C", "L" },
-  { "004D", "M" },
-  { "004E", "N" },
-  { "004E_0303", "~N" },
-  { "004F", "O" },
-  { "004F_0300", "`O" },
-  { "004F_0301", "'O" },
-  { "004F_0302", "^O" },
-  { "004F_0303", "~O" },
-  { "004F_0308", ":O" },
-  { "0050", "P" },
-  { "0051", "Q" },
-  { "0052", "R" },
-  { "0053", "S" },
-  { "0053_030C", "vS" },
-  { "0054", "T" },
-  { "0055", "U" },
-  { "0055_0300", "`U" },
-  { "0055_0301", "'U" },
-  { "0055_0302", "^U" },
-  { "0055_0308", ":U" },
-  { "0056", "V" },
-  { "0057", "W" },
-  { "0058", "X" },
-  { "0059", "Y" },
-  { "0059_0301", "'Y" },
-  { "0059_0308", ":Y" },
-  { "005A", "Z" },
-  { "005A_030C", "vZ" },
-  { "005B", "lB" },
-//{ "005B", "[" },
-  { "005C", "rs" },
-//{ "005C", "\\" },
-  { "005D", "rB" },
-//{ "005D", "]" },
-//{ "005E", "^" },
-//{ "005E", "a^" },
-  { "005E", "ha" },
-//{ "005F", "_" },
-//{ "005F", "ru" },
-  { "005F", "ul" },
-  { "0060", "ga" },
-//{ "0060", "\\`" },
-  { "0061", "a" },
-  { "0061_0300", "`a" },
-  { "0061_0301", "'a" },
-  { "0061_0302", "^a" },
-  { "0061_0303", "~a" },
-  { "0061_0308", ":a" },
-  { "0061_030A", "oa" },
-  { "0062", "b" },
-  { "0063", "c" },
-  { "0063_0301", "'c" },
-  { "0063_0327", ",c" },
-  { "0064", "d" },
-  { "0065", "e" },
-  { "0065_0300", "`e" },
-  { "0065_0301", "'e" },
-  { "0065_0302", "^e" },
-  { "0065_0308", ":e" },
-  { "0066", "f" },
-  { "0066_0066", "ff" },
-  { "0066_0066_0069", "Fi" },
-  { "0066_0066_006C", "Fl" },
-  { "0066_0069", "fi" },
-  { "0066_006C", "fl" },
-  { "0067", "g" },
-  { "0068", "h" },
-  { "0069", "i" },
-  { "0069_0300", "`i" },
-  { "0069_0301", "'i" },
-  { "0069_0302", "^i" },
-  { "0069_0308", ":i" },
-  { "006A", "j" },
-  { "006B", "k" },
-  { "006C", "l" },
-  { "006D", "m" },
-  { "006E", "n" },
-  { "006E_0303", "~n" },
-  { "006F", "o" },
-  { "006F_0300", "`o" },
-  { "006F_0301", "'o" },
-  { "006F_0302", "^o" },
-  { "006F_0303", "~o" },
-  { "006F_0308", ":o" },
-  { "0070", "p" },
-  { "0071", "q" },
-  { "0072", "r" },
-  { "0073", "s" },
-  { "0073_030C", "vs" },
-  { "0074", "t" },
-  { "0075", "u" },
-  { "0075_0300", "`u" },
-  { "0075_0301", "'u" },
-  { "0075_0302", "^u" },
-  { "0075_0308", ":u" },
-  { "0076", "v" },
-  { "0077", "w" },
-  { "0078", "x" },
-  { "0079", "y" },
-  { "0079_0301", "'y" },
-  { "0079_0308", ":y" },
-  { "007A", "z" },
-  { "007A_030C", "vz" },
-  { "007B", "lC" },
-//{ "007B", "{" },
-  { "007C", "ba" },
-//{ "007C", "or" },
-//{ "007C", "|" },
-  { "007D", "rC" },
-//{ "007D", "}" },
-//{ "007E", "a~" },
-  { "007E", "ti" },
-//{ "007E", "~" },
-  { "00A1", "r!" },
-  { "00A2", "ct" },
-  { "00A3", "Po" },
-  { "00A4", "Cs" },
-  { "00A5", "Ye" },
-  { "00A6", "bb" },
-  { "00A7", "sc" },
-  { "00A8", "ad" },
-  { "00A9", "co" },
-  { "00AA", "Of" },
-  { "00AB", "Fo" },
-  { "00AC", "no" },
-//{ "00AC", "tno" },
-  { "00AD", "shc" },
-  { "00AE", "rg" },
-  { "00AF", "a-" },
-  { "00B0", "de" },
-  { "00B1", "+-" },
-//{ "00B1", "t+-" },
-  { "00B2", "S2" },
-  { "00B3", "S3" },
-  { "00B4", "aa" },
-//{ "00B4", "\\'" },
-  { "00B5", "mc" },
-  { "00B6", "ps" },
-  { "00B7", "pc" },
-  { "00B8", "ac" },
-  { "00B9", "S1" },
-  { "00BA", "Om" },
-  { "00BB", "Fc" },
-  { "00BC", "14" },
-  { "00BD", "12" },
-  { "00BE", "34" },
-  { "00BF", "r?" },
-  { "00C6", "AE" },
-  { "00D0", "-D" },
-  { "00D7", "mu" },
-//{ "00D7", "tmu" },
-  { "00D8", "/O" },
-  { "00DE", "TP" },
-  { "00DF", "ss" },
-  { "00E6", "ae" },
-  { "00F0", "Sd" },
-  { "00F7", "di" },
-//{ "00F7", "tdi" },
-  { "00F8", "/o" },
-  { "00FE", "Tp" },
-  { "0131", ".i" },
-  { "0132", "IJ" },
-  { "0133", "ij" },
-  { "0141", "/L" },
-  { "0142", "/l" },
-  { "0152", "OE" },
-  { "0153", "oe" },
-  { "0192", "Fn" },
-  { "02C7", "ah" },
-  { "02D8", "ab" },
-  { "02D9", "a." },
-  { "02DA", "ao" },
-  { "02DB", "ho" },
-  { "02DD", "a\"" },
-  { "0391", "*A" },
-  { "0392", "*B" },
-  { "0393", "*G" },
-  { "0394", "*D" },
-  { "0395", "*E" },
-  { "0396", "*Z" },
-  { "0397", "*Y" },
-  { "0398", "*H" },
-  { "0399", "*I" },
-  { "039A", "*K" },
-  { "039B", "*L" },
-  { "039C", "*M" },
-  { "039D", "*N" },
-  { "039E", "*C" },
-  { "039F", "*O" },
-  { "03A0", "*P" },
-  { "03A1", "*R" },
-  { "03A3", "*S" },
-  { "03A4", "*T" },
-  { "03A5", "*U" },
-  { "03A6", "*F" },
-  { "03A7", "*X" },
-  { "03A8", "*Q" },
-  { "03A9", "*W" },
-  { "03B1", "*a" },
-  { "03B2", "*b" },
-  { "03B3", "*g" },
-  { "03B4", "*d" },
-  { "03B5", "*e" },
-  { "03B6", "*z" },
-  { "03B7", "*y" },
-  { "03B8", "*h" },
-  { "03B9", "*i" },
-  { "03BA", "*k" },
-  { "03BB", "*l" },
-  { "03BC", "*m" },
-  { "03BD", "*n" },
-  { "03BE", "*c" },
-  { "03BF", "*o" },
-  { "03C0", "*p" },
-  { "03C1", "*r" },
-  { "03C2", "ts" },
-  { "03C3", "*s" },
-  { "03C4", "*t" },
-  { "03C5", "*u" },
-  { "03C6", "*f" },
-  { "03C7", "*x" },
-  { "03C8", "*q" },
-  { "03C9", "*w" },
-  { "03D1", "+h" },
-  { "03D5", "+f" },
-  { "03D6", "+p" },
-  { "03F5", "+e" },
-//{ "2010", "-" },
-  { "2010", "hy" },
-  { "2013", "en" },
-  { "2014", "em" },
-//{ "2018", "`" },
-  { "2018", "oq" },
-//{ "2019", "'" },
-  { "2019", "cq" },
-  { "201A", "bq" },
-  { "201C", "lq" },
-  { "201D", "rq" },
-  { "201E", "Bq" },
-  { "2020", "dg" },
-  { "2021", "dd" },
-  { "2022", "bu" },
-  { "2030", "%0" },
-  { "2032", "fm" },
-  { "2033", "sd" },
-  { "2039", "fo" },
-  { "203A", "fc" },
-  { "203E", "rn" },
-  { "2044", "f/" },
-  { "20AC", "Eu" },
-//{ "20AC", "eu" },
-  { "210F", "-h" },
-//{ "210F", "hbar" },
-  { "2111", "Im" },
-  { "2118", "wp" },
-  { "211C", "Re" },
-  { "2122", "tm" },
-  { "2135", "Ah" },
-  { "215B", "18" },
-  { "215C", "38" },
-  { "215D", "58" },
-  { "215E", "78" },
-  { "2190", "<-" },
-  { "2191", "ua" },
-  { "2192", "->" },
-  { "2193", "da" },
-  { "2194", "<>" },
-  { "2195", "va" },
-  { "21B5", "CR" },
-  { "21D0", "lA" },
-  { "21D1", "uA" },
-  { "21D2", "rA" },
-  { "21D3", "dA" },
-  { "21D4", "hA" },
-  { "21D5", "vA" },
-  { "2200", "fa" },
-  { "2202", "pd" },
-  { "2203", "te" },
-  { "2205", "es" },
-  { "2207", "gr" },
-  { "2208", "mo" },
-  { "2208_0338", "nm" },
-  { "220B", "st" },
-  { "220F", "product" },
-  { "2211", "sum" },
-  { "2212", "mi" },
-//{ "2212", "\\-" },
-  { "2213", "-+" },
-  { "2217", "**" },
-  { "221A", "sr" },
-  { "221D", "pt" },
-  { "221E", "if" },
-  { "2220", "/_" },
-  { "2227", "AN" },
-  { "2228", "OR" },
-  { "2229", "ca" },
-  { "222A", "cu" },
-  { "222B", "is" },
-//{ "222B", "integral" },
-//{ "2234", "3d" },
-  { "2234", "tf" },
-  { "223C", "ap" },
-  { "2243", "|=" },
-  { "2245", "=~" },
-//{ "2248", "~=" },
-  { "2248", "~~" },
-  { "2261", "==" },
-  { "2261_0338", "ne" },
-  { "2264", "<=" },
-  { "2265", ">=" },
-  { "226A", ">>" },
-  { "226B", "<<" },
-  { "2282", "sb" },
-  { "2282_0338", "nb" },
-  { "2283", "sp" },
-  { "2283_0338", "nc" },
-  { "2286", "ib" },
-  { "2287", "ip" },
-  { "2295", "c+" },
-  { "2297", "c*" },
-  { "22A5", "pp" },
-  { "22C5", "md" },
-  { "2308", "lc" },
-  { "2309", "rc" },
-  { "230A", "lf" },
-  { "230B", "rf" },
-  { "239B", "parenlefttp" },
-  { "239C", "parenleftex" },
-  { "239D", "parenleftbt" },
-  { "239E", "parenrighttp" },
-  { "239F", "parenrightex" },
-  { "23A0", "parenrightbt" },
-//{ "23A1", "bracketlefttp" },
-  { "23A2", "bracketleftex" },
-//{ "23A3", "bracketleftbt" },
-//{ "23A4", "bracketrighttp" },
-  { "23A5", "bracketrightex" },
-//{ "23A6", "bracketrightbt" },
-  { "23A7", "lt" },
-//{ "23A7", "bracelefttp" },
-  { "23A8", "lk" },
-//{ "23A8", "braceleftmid" },
-  { "23A9", "lb" },
-//{ "23A9", "braceleftbt" },
-  { "23AA", "bv" },
-//{ "23AA", "braceex" },
-//{ "23AA", "braceleftex" },
-//{ "23AA", "bracerightex" },
-  { "23AB", "rt" },
-//{ "23AB", "bracerighttp" },
-  { "23AC", "rk" },
-//{ "23AC", "bracerightmid" },
-  { "23AD", "rb" },
-//{ "23AD", "bracerightbt" },
-  { "23AF", "an" },
-  { "2502", "br" },
-  { "251D", "rk" },
-  { "2525", "lk" },
-  { "256D", "lt" },
-  { "256E", "rt" },
-  { "256F", "rb" },
-  { "2570", "lb" },
-  { "25A1", "sq" },
-  { "25CA", "lz" },
-  { "25CB", "ci" },
-  { "261C", "lh" },
-  { "261E", "rh" },
-  { "2660", "SP" },
-  { "2663", "CL" },
-  { "2665", "HE" },
-  { "2666", "DI" },
-  { "2713", "OK" },
-  { "27E8", "la" },
-  { "27E9", "ra" },
-};
-
-// global constructor
-static struct unicode_to_glyph_init {
-  unicode_to_glyph_init();
-} _unicode_to_glyph_init;
-
-unicode_to_glyph_init::unicode_to_glyph_init() {
-  for (unsigned int i = 0;
-       i < sizeof(unicode_to_glyph_list)/sizeof(unicode_to_glyph_list[0]);
-       i++) {
-    unicode_to_glyph *utg = new unicode_to_glyph[1];
-    utg->value = (char *)unicode_to_glyph_list[i].value;
-    unicode_to_glyph_table.define(unicode_to_glyph_list[i].key, utg);
-  }
-}
-
-const char *unicode_to_glyph_name(const char *s)
-{
-  unicode_to_glyph *result = unicode_to_glyph_table.lookup(s);
-  return result ? result->value : 0;
-}
diff --git a/contrib/groff/src/roff/troff/uniuni.cpp b/contrib/groff/src/roff/troff/uniuni.cpp
deleted file mode 100644
index 3f4baa4..0000000
--- a/contrib/groff/src/roff/troff/uniuni.cpp
+++ /dev/null
@@ -1,1994 +0,0 @@
-// -*- C++ -*-
-/* Copyright (C) 2002, 2003
-   Free Software Foundation, Inc.
-     Written by Werner Lemberg <wl@gnu.org>
-
-This file is part of groff.
-
-groff is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-groff is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License along
-with groff; see the file COPYING.  If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-// This code has been algorithmically derived from the file
-// UnicodeData-3.2.0.txt, available from unicode.org.
-
-#include "lib.h"
-#include "stringclass.h"
-#include "ptable.h"
-
-#include "unicode.h"
-
-struct unicode_decompose {
-  char *value;
-};
-
-declare_ptable(unicode_decompose)
-implement_ptable(unicode_decompose)
-
-PTABLE(unicode_decompose) unicode_decompose_table;
-
-// the first digit in the composite string gives the number of composites
-
-struct {
-  const char *key;
-  const char *value;
-} unicode_decompose_list[] = {
-  { "00C0", "20041_0300" },
-  { "00C1", "20041_0301" },
-  { "00C2", "20041_0302" },
-  { "00C3", "20041_0303" },
-  { "00C4", "20041_0308" },
-  { "00C5", "20041_030A" },
-  { "00C7", "20043_0327" },
-  { "00C8", "20045_0300" },
-  { "00C9", "20045_0301" },
-  { "00CA", "20045_0302" },
-  { "00CB", "20045_0308" },
-  { "00CC", "20049_0300" },
-  { "00CD", "20049_0301" },
-  { "00CE", "20049_0302" },
-  { "00CF", "20049_0308" },
-  { "00D1", "2004E_0303" },
-  { "00D2", "2004F_0300" },
-  { "00D3", "2004F_0301" },
-  { "00D4", "2004F_0302" },
-  { "00D5", "2004F_0303" },
-  { "00D6", "2004F_0308" },
-  { "00D9", "20055_0300" },
-  { "00DA", "20055_0301" },
-  { "00DB", "20055_0302" },
-  { "00DC", "20055_0308" },
-  { "00DD", "20059_0301" },
-  { "00E0", "20061_0300" },
-  { "00E1", "20061_0301" },
-  { "00E2", "20061_0302" },
-  { "00E3", "20061_0303" },
-  { "00E4", "20061_0308" },
-  { "00E5", "20061_030A" },
-  { "00E7", "20063_0327" },
-  { "00E8", "20065_0300" },
-  { "00E9", "20065_0301" },
-  { "00EA", "20065_0302" },
-  { "00EB", "20065_0308" },
-  { "00EC", "20069_0300" },
-  { "00ED", "20069_0301" },
-  { "00EE", "20069_0302" },
-  { "00EF", "20069_0308" },
-  { "00F1", "2006E_0303" },
-  { "00F2", "2006F_0300" },
-  { "00F3", "2006F_0301" },
-  { "00F4", "2006F_0302" },
-  { "00F5", "2006F_0303" },
-  { "00F6", "2006F_0308" },
-  { "00F9", "20075_0300" },
-  { "00FA", "20075_0301" },
-  { "00FB", "20075_0302" },
-  { "00FC", "20075_0308" },
-  { "00FD", "20079_0301" },
-  { "00FF", "20079_0308" },
-  { "0100", "20041_0304" },
-  { "0101", "20061_0304" },
-  { "0102", "20041_0306" },
-  { "0103", "20061_0306" },
-  { "0104", "20041_0328" },
-  { "0105", "20061_0328" },
-  { "0106", "20043_0301" },
-  { "0107", "20063_0301" },
-  { "0108", "20043_0302" },
-  { "0109", "20063_0302" },
-  { "010A", "20043_0307" },
-  { "010B", "20063_0307" },
-  { "010C", "20043_030C" },
-  { "010D", "20063_030C" },
-  { "010E", "20044_030C" },
-  { "010F", "20064_030C" },
-  { "0112", "20045_0304" },
-  { "0113", "20065_0304" },
-  { "0114", "20045_0306" },
-  { "0115", "20065_0306" },
-  { "0116", "20045_0307" },
-  { "0117", "20065_0307" },
-  { "0118", "20045_0328" },
-  { "0119", "20065_0328" },
-  { "011A", "20045_030C" },
-  { "011B", "20065_030C" },
-  { "011C", "20047_0302" },
-  { "011D", "20067_0302" },
-  { "011E", "20047_0306" },
-  { "011F", "20067_0306" },
-  { "0120", "20047_0307" },
-  { "0121", "20067_0307" },
-  { "0122", "20047_0327" },
-  { "0123", "20067_0327" },
-  { "0124", "20048_0302" },
-  { "0125", "20068_0302" },
-  { "0128", "20049_0303" },
-  { "0129", "20069_0303" },
-  { "012A", "20049_0304" },
-  { "012B", "20069_0304" },
-  { "012C", "20049_0306" },
-  { "012D", "20069_0306" },
-  { "012E", "20049_0328" },
-  { "012F", "20069_0328" },
-  { "0130", "20049_0307" },
-  { "0134", "2004A_0302" },
-  { "0135", "2006A_0302" },
-  { "0136", "2004B_0327" },
-  { "0137", "2006B_0327" },
-  { "0139", "2004C_0301" },
-  { "013A", "2006C_0301" },
-  { "013B", "2004C_0327" },
-  { "013C", "2006C_0327" },
-  { "013D", "2004C_030C" },
-  { "013E", "2006C_030C" },
-  { "0143", "2004E_0301" },
-  { "0144", "2006E_0301" },
-  { "0145", "2004E_0327" },
-  { "0146", "2006E_0327" },
-  { "0147", "2004E_030C" },
-  { "0148", "2006E_030C" },
-  { "014C", "2004F_0304" },
-  { "014D", "2006F_0304" },
-  { "014E", "2004F_0306" },
-  { "014F", "2006F_0306" },
-  { "0150", "2004F_030B" },
-  { "0151", "2006F_030B" },
-  { "0154", "20052_0301" },
-  { "0155", "20072_0301" },
-  { "0156", "20052_0327" },
-  { "0157", "20072_0327" },
-  { "0158", "20052_030C" },
-  { "0159", "20072_030C" },
-  { "015A", "20053_0301" },
-  { "015B", "20073_0301" },
-  { "015C", "20053_0302" },
-  { "015D", "20073_0302" },
-  { "015E", "20053_0327" },
-  { "015F", "20073_0327" },
-  { "0160", "20053_030C" },
-  { "0161", "20073_030C" },
-  { "0162", "20054_0327" },
-  { "0163", "20074_0327" },
-  { "0164", "20054_030C" },
-  { "0165", "20074_030C" },
-  { "0168", "20055_0303" },
-  { "0169", "20075_0303" },
-  { "016A", "20055_0304" },
-  { "016B", "20075_0304" },
-  { "016C", "20055_0306" },
-  { "016D", "20075_0306" },
-  { "016E", "20055_030A" },
-  { "016F", "20075_030A" },
-  { "0170", "20055_030B" },
-  { "0171", "20075_030B" },
-  { "0172", "20055_0328" },
-  { "0173", "20075_0328" },
-  { "0174", "20057_0302" },
-  { "0175", "20077_0302" },
-  { "0176", "20059_0302" },
-  { "0177", "20079_0302" },
-  { "0178", "20059_0308" },
-  { "0179", "2005A_0301" },
-  { "017A", "2007A_0301" },
-  { "017B", "2005A_0307" },
-  { "017C", "2007A_0307" },
-  { "017D", "2005A_030C" },
-  { "017E", "2007A_030C" },
-  { "01A0", "2004F_031B" },
-  { "01A1", "2006F_031B" },
-  { "01AF", "20055_031B" },
-  { "01B0", "20075_031B" },
-  { "01CD", "20041_030C" },
-  { "01CE", "20061_030C" },
-  { "01CF", "20049_030C" },
-  { "01D0", "20069_030C" },
-  { "01D1", "2004F_030C" },
-  { "01D2", "2006F_030C" },
-  { "01D3", "20055_030C" },
-  { "01D4", "20075_030C" },
-  { "01D5", "30055_0308_0304" },
-  { "01D6", "30075_0308_0304" },
-  { "01D7", "30055_0308_0301" },
-  { "01D8", "30075_0308_0301" },
-  { "01D9", "30055_0308_030C" },
-  { "01DA", "30075_0308_030C" },
-  { "01DB", "30055_0308_0300" },
-  { "01DC", "30075_0308_0300" },
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-  { "2F893", "18201" },
-  { "2F894", "15F22" },
-  { "2F895", "15F22" },
-  { "2F896", "138C7" },
-  { "2F897", "1232B8" },
-  { "2F898", "1261DA" },
-  { "2F899", "15F62" },
-  { "2F89A", "15F6B" },
-  { "2F89B", "138E3" },
-  { "2F89C", "15F9A" },
-  { "2F89D", "15FCD" },
-  { "2F89E", "15FD7" },
-  { "2F89F", "15FF9" },
-  { "2F8A0", "16081" },
-  { "2F8A1", "1393A" },
-  { "2F8A2", "1391C" },
-  { "2F8A3", "16094" },
-  { "2F8A4", "1226D4" },
-  { "2F8A5", "160C7" },
-  { "2F8A6", "16148" },
-  { "2F8A7", "1614C" },
-  { "2F8A8", "1614E" },
-  { "2F8A9", "1614C" },
-  { "2F8AA", "1617A" },
-  { "2F8AB", "1618E" },
-  { "2F8AC", "161B2" },
-  { "2F8AD", "161A4" },
-  { "2F8AE", "161AF" },
-  { "2F8AF", "161DE" },
-  { "2F8B0", "161F2" },
-  { "2F8B1", "161F6" },
-  { "2F8B2", "16210" },
-  { "2F8B3", "1621B" },
-  { "2F8B4", "1625D" },
-  { "2F8B5", "162B1" },
-  { "2F8B6", "162D4" },
-  { "2F8B7", "16350" },
-  { "2F8B8", "122B0C" },
-  { "2F8B9", "1633D" },
-  { "2F8BA", "162FC" },
-  { "2F8BB", "16368" },
-  { "2F8BC", "16383" },
-  { "2F8BD", "163E4" },
-  { "2F8BE", "122BF1" },
-  { "2F8BF", "16422" },
-  { "2F8C0", "163C5" },
-  { "2F8C1", "163A9" },
-  { "2F8C2", "13A2E" },
-  { "2F8C3", "16469" },
-  { "2F8C4", "1647E" },
-  { "2F8C5", "1649D" },
-  { "2F8C6", "16477" },
-  { "2F8C7", "13A6C" },
-  { "2F8C8", "1654F" },
-  { "2F8C9", "1656C" },
-  { "2F8CA", "12300A" },
-  { "2F8CB", "165E3" },
-  { "2F8CC", "166F8" },
-  { "2F8CD", "16649" },
-  { "2F8CE", "13B19" },
-  { "2F8CF", "16691" },
-  { "2F8D0", "13B08" },
-  { "2F8D1", "13AE4" },
-  { "2F8D2", "15192" },
-  { "2F8D3", "15195" },
-  { "2F8D4", "16700" },
-  { "2F8D5", "1669C" },
-  { "2F8D6", "180AD" },
-  { "2F8D7", "143D9" },
-  { "2F8D8", "16717" },
-  { "2F8D9", "1671B" },
-  { "2F8DA", "16721" },
-  { "2F8DB", "1675E" },
-  { "2F8DC", "16753" },
-  { "2F8DD", "1233C3" },
-  { "2F8DE", "13B49" },
-  { "2F8DF", "167FA" },
-  { "2F8E0", "16785" },
-  { "2F8E1", "16852" },
-  { "2F8E2", "16885" },
-  { "2F8E3", "12346D" },
-  { "2F8E4", "1688E" },
-  { "2F8E5", "1681F" },
-  { "2F8E6", "16914" },
-  { "2F8E7", "13B9D" },
-  { "2F8E8", "16942" },
-  { "2F8E9", "169A3" },
-  { "2F8EA", "169EA" },
-  { "2F8EB", "16AA8" },
-  { "2F8EC", "1236A3" },
-  { "2F8ED", "16ADB" },
-  { "2F8EE", "13C18" },
-  { "2F8EF", "16B21" },
-  { "2F8F0", "1238A7" },
-  { "2F8F1", "16B54" },
-  { "2F8F2", "13C4E" },
-  { "2F8F3", "16B72" },
-  { "2F8F4", "16B9F" },
-  { "2F8F5", "16BBA" },
-  { "2F8F6", "16BBB" },
-  { "2F8F7", "123A8D" },
-  { "2F8F8", "121D0B" },
-  { "2F8F9", "123AFA" },
-  { "2F8FA", "16C4E" },
-  { "2F8FB", "123CBC" },
-  { "2F8FC", "16CBF" },
-  { "2F8FD", "16CCD" },
-  { "2F8FE", "16C67" },
-  { "2F8FF", "16D16" },
-  { "2F900", "16D3E" },
-  { "2F901", "16D77" },
-  { "2F902", "16D41" },
-  { "2F903", "16D69" },
-  { "2F904", "16D78" },
-  { "2F905", "16D85" },
-  { "2F906", "123D1E" },
-  { "2F907", "16D34" },
-  { "2F908", "16E2F" },
-  { "2F909", "16E6E" },
-  { "2F90A", "13D33" },
-  { "2F90B", "16ECB" },
-  { "2F90C", "16EC7" },
-  { "2F90D", "123ED1" },
-  { "2F90E", "16DF9" },
-  { "2F90F", "16F6E" },
-  { "2F910", "123F5E" },
-  { "2F911", "123F8E" },
-  { "2F912", "16FC6" },
-  { "2F913", "17039" },
-  { "2F914", "1701E" },
-  { "2F915", "1701B" },
-  { "2F916", "13D96" },
-  { "2F917", "1704A" },
-  { "2F918", "1707D" },
-  { "2F919", "17077" },
-  { "2F91A", "170AD" },
-  { "2F91B", "120525" },
-  { "2F91C", "17145" },
-  { "2F91D", "124263" },
-  { "2F91E", "1719C" },
-  { "2F91F", "143AB" },
-  { "2F920", "17228" },
-  { "2F921", "17235" },
-  { "2F922", "17250" },
-  { "2F923", "124608" },
-  { "2F924", "17280" },
-  { "2F925", "17295" },
-  { "2F926", "124735" },
-  { "2F927", "124814" },
-  { "2F928", "1737A" },
-  { "2F929", "1738B" },
-  { "2F92A", "13EAC" },
-  { "2F92B", "173A5" },
-  { "2F92C", "13EB8" },
-  { "2F92D", "13EB8" },
-  { "2F92E", "17447" },
-  { "2F92F", "1745C" },
-  { "2F930", "17471" },
-  { "2F931", "17485" },
-  { "2F932", "174CA" },
-  { "2F933", "13F1B" },
-  { "2F934", "17524" },
-  { "2F935", "124C36" },
-  { "2F936", "1753E" },
-  { "2F937", "124C92" },
-  { "2F938", "17570" },
-  { "2F939", "12219F" },
-  { "2F93A", "17610" },
-  { "2F93B", "124FA1" },
-  { "2F93C", "124FB8" },
-  { "2F93D", "125044" },
-  { "2F93E", "13FFC" },
-  { "2F93F", "14008" },
-  { "2F940", "176F4" },
-  { "2F941", "1250F3" },
-  { "2F942", "1250F2" },
-  { "2F943", "125119" },
-  { "2F944", "125133" },
-  { "2F945", "1771E" },
-  { "2F946", "1771F" },
-  { "2F947", "1771F" },
-  { "2F948", "1774A" },
-  { "2F949", "14039" },
-  { "2F94A", "1778B" },
-  { "2F94B", "14046" },
-  { "2F94C", "14096" },
-  { "2F94D", "12541D" },
-  { "2F94E", "1784E" },
-  { "2F94F", "1788C" },
-  { "2F950", "178CC" },
-  { "2F951", "140E3" },
-  { "2F952", "125626" },
-  { "2F953", "17956" },
-  { "2F954", "12569A" },
-  { "2F955", "1256C5" },
-  { "2F956", "1798F" },
-  { "2F957", "179EB" },
-  { "2F958", "1412F" },
-  { "2F959", "17A40" },
-  { "2F95A", "17A4A" },
-  { "2F95B", "17A4F" },
-  { "2F95C", "12597C" },
-  { "2F95D", "125AA7" },
-  { "2F95E", "125AA7" },
-  { "2F95F", "17AAE" },
-  { "2F960", "14202" },
-  { "2F961", "125BAB" },
-  { "2F962", "17BC6" },
-  { "2F963", "17BC9" },
-  { "2F964", "14227" },
-  { "2F965", "125C80" },
-  { "2F966", "17CD2" },
-  { "2F967", "142A0" },
-  { "2F968", "17CE8" },
-  { "2F969", "17CE3" },
-  { "2F96A", "17D00" },
-  { "2F96B", "125F86" },
-  { "2F96C", "17D63" },
-  { "2F96D", "14301" },
-  { "2F96E", "17DC7" },
-  { "2F96F", "17E02" },
-  { "2F970", "17E45" },
-  { "2F971", "14334" },
-  { "2F972", "126228" },
-  { "2F973", "126247" },
-  { "2F974", "14359" },
-  { "2F975", "1262D9" },
-  { "2F976", "17F7A" },
-  { "2F977", "12633E" },
-  { "2F978", "17F95" },
-  { "2F979", "17FFA" },
-  { "2F97A", "18005" },
-  { "2F97B", "1264DA" },
-  { "2F97C", "126523" },
-  { "2F97D", "18060" },
-  { "2F97E", "1265A8" },
-  { "2F97F", "18070" },
-  { "2F980", "12335F" },
-  { "2F981", "143D5" },
-  { "2F982", "180B2" },
-  { "2F983", "18103" },
-  { "2F984", "1440B" },
-  { "2F985", "1813E" },
-  { "2F986", "15AB5" },
-  { "2F987", "1267A7" },
-  { "2F988", "1267B5" },
-  { "2F989", "123393" },
-  { "2F98A", "12339C" },
-  { "2F98B", "18201" },
-  { "2F98C", "18204" },
-  { "2F98D", "18F9E" },
-  { "2F98E", "1446B" },
-  { "2F98F", "18291" },
-  { "2F990", "1828B" },
-  { "2F991", "1829D" },
-  { "2F992", "152B3" },
-  { "2F993", "182B1" },
-  { "2F994", "182B3" },
-  { "2F995", "182BD" },
-  { "2F996", "182E6" },
-  { "2F997", "126B3C" },
-  { "2F998", "182E5" },
-  { "2F999", "1831D" },
-  { "2F99A", "18363" },
-  { "2F99B", "183AD" },
-  { "2F99C", "18323" },
-  { "2F99D", "183BD" },
-  { "2F99E", "183E7" },
-  { "2F99F", "18457" },
-  { "2F9A0", "18353" },
-  { "2F9A1", "183CA" },
-  { "2F9A2", "183CC" },
-  { "2F9A3", "183DC" },
-  { "2F9A4", "126C36" },
-  { "2F9A5", "126D6B" },
-  { "2F9A6", "126CD5" },
-  { "2F9A7", "1452B" },
-  { "2F9A8", "184F1" },
-  { "2F9A9", "184F3" },
-  { "2F9AA", "18516" },
-  { "2F9AB", "1273CA" },
-  { "2F9AC", "18564" },
-  { "2F9AD", "126F2C" },
-  { "2F9AE", "1455D" },
-  { "2F9AF", "14561" },
-  { "2F9B0", "126FB1" },
-  { "2F9B1", "1270D2" },
-  { "2F9B2", "1456B" },
-  { "2F9B3", "18650" },
-  { "2F9B4", "1865C" },
-  { "2F9B5", "18667" },
-  { "2F9B6", "18669" },
-  { "2F9B7", "186A9" },
-  { "2F9B8", "18688" },
-  { "2F9B9", "1870E" },
-  { "2F9BA", "186E2" },
-  { "2F9BB", "18779" },
-  { "2F9BC", "18728" },
-  { "2F9BD", "1876B" },
-  { "2F9BE", "18786" },
-  { "2F9BF", "14D57" },
-  { "2F9C0", "187E1" },
-  { "2F9C1", "18801" },
-  { "2F9C2", "145F9" },
-  { "2F9C3", "18860" },
-  { "2F9C4", "18863" },
-  { "2F9C5", "127667" },
-  { "2F9C6", "188D7" },
-  { "2F9C7", "188DE" },
-  { "2F9C8", "14635" },
-  { "2F9C9", "188FA" },
-  { "2F9CA", "134BB" },
-  { "2F9CB", "1278AE" },
-  { "2F9CC", "127966" },
-  { "2F9CD", "146BE" },
-  { "2F9CE", "146C7" },
-  { "2F9CF", "18AA0" },
-  { "2F9D0", "18AED" },
-  { "2F9D1", "18B8A" },
-  { "2F9D2", "18C55" },
-  { "2F9D3", "127CA8" },
-  { "2F9D4", "18CAB" },
-  { "2F9D5", "18CC1" },
-  { "2F9D6", "18D1B" },
-  { "2F9D7", "18D77" },
-  { "2F9D8", "127F2F" },
-  { "2F9D9", "120804" },
-  { "2F9DA", "18DCB" },
-  { "2F9DB", "18DBC" },
-  { "2F9DC", "18DF0" },
-  { "2F9DD", "1208DE" },
-  { "2F9DE", "18ED4" },
-  { "2F9DF", "18F38" },
-  { "2F9E0", "1285D2" },
-  { "2F9E1", "1285ED" },
-  { "2F9E2", "19094" },
-  { "2F9E3", "190F1" },
-  { "2F9E4", "19111" },
-  { "2F9E5", "12872E" },
-  { "2F9E6", "1911B" },
-  { "2F9E7", "19238" },
-  { "2F9E8", "192D7" },
-  { "2F9E9", "192D8" },
-  { "2F9EA", "1927C" },
-  { "2F9EB", "193F9" },
-  { "2F9EC", "19415" },
-  { "2F9ED", "128BFA" },
-  { "2F9EE", "1958B" },
-  { "2F9EF", "14995" },
-  { "2F9F0", "195B7" },
-  { "2F9F1", "128D77" },
-  { "2F9F2", "149E6" },
-  { "2F9F3", "196C3" },
-  { "2F9F4", "15DB2" },
-  { "2F9F5", "19723" },
-  { "2F9F6", "129145" },
-  { "2F9F7", "12921A" },
-  { "2F9F8", "14A6E" },
-  { "2F9F9", "14A76" },
-  { "2F9FA", "197E0" },
-  { "2F9FB", "12940A" },
-  { "2F9FC", "14AB2" },
-  { "2F9FD", "129496" },
-  { "2F9FE", "1980B" },
-  { "2F9FF", "1980B" },
-  { "2FA00", "19829" },
-  { "2FA01", "1295B6" },
-  { "2FA02", "198E2" },
-  { "2FA03", "14B33" },
-  { "2FA04", "19929" },
-  { "2FA05", "199A7" },
-  { "2FA06", "199C2" },
-  { "2FA07", "199FE" },
-  { "2FA08", "14BCE" },
-  { "2FA09", "129B30" },
-  { "2FA0A", "19B12" },
-  { "2FA0B", "19C40" },
-  { "2FA0C", "19CFD" },
-  { "2FA0D", "14CCE" },
-  { "2FA0E", "14CED" },
-  { "2FA0F", "19D67" },
-  { "2FA10", "12A0CE" },
-  { "2FA11", "14CF8" },
-  { "2FA12", "12A105" },
-  { "2FA13", "12A20E" },
-  { "2FA14", "12A291" },
-  { "2FA15", "19EBB" },
-  { "2FA16", "14D56" },
-  { "2FA17", "19EF9" },
-  { "2FA18", "19EFE" },
-  { "2FA19", "19F05" },
-  { "2FA1A", "19F0F" },
-  { "2FA1B", "19F16" },
-  { "2FA1C", "19F3B" },
-  { "2FA1D", "12A600" },
-};
-
-// global constructor
-
-static struct unicode_decompose_init {
-  unicode_decompose_init();
-} _unicode_decompose_init;
-
-unicode_decompose_init::unicode_decompose_init() {
-  for (unsigned int i = 0;
-       i < sizeof(unicode_decompose_list)/sizeof(unicode_decompose_list[0]);
-       i++) {
-    unicode_decompose *dec = new unicode_decompose[1];
-    dec->value = (char *)unicode_decompose_list[i].value;
-    unicode_decompose_table.define(unicode_decompose_list[i].key, dec);
-  }
-}
-
-const char *decompose_unicode(const char *s)
-{
-  unicode_decompose *result = unicode_decompose_table.lookup(s);
-  return result ? result->value : 0;
-}
diff --git a/contrib/groff/src/xditview/ChangeLog b/contrib/groff/src/xditview/ChangeLog
deleted file mode 100644
index a63d984..0000000
--- a/contrib/groff/src/xditview/ChangeLog
+++ /dev/null
@@ -1,520 +0,0 @@
-Version 1.19 released
-=====================
-
-2003-03-03  Werner LEMBERG  <wl@gnu.org>
-
-	* Imakefile.in (extraclean): Added gxditview._man.
-
-2003-01-28  Werner LEMBERG  <wl@gnu.org>
-
-	* Imakefile.in (SEP): New variable; set to @PATH_SEPARATOR@.
-	(GROFF_FONTPATH): Use it.
-
-2003-01-07  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c (Adobe_Symbol_map): Add `sqrt'.
-
-2003-01-06  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c (Adobe_Symbol_map): Add `integral'.
-
-2002-12-29  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c (ISO_8859_1_map): Remove `ap' and `eq'.
-
-2002-12-20  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c (Adobe_Symbol_map): Don't include `or'.
-	* draw.c (AdjustCharDeltas): Apply correction only if nadj > 1.
-	(DoCharacter): Call FlushCharCache if font size and font number
-	differ.
-	Reset `dw->dvi.cache.adjustable' properly.
-
-2002-12-09  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c (ISO_8859_1_map): Use `tno' symbol instead of `no'.
-
-2002-12-01  Werner LEMBERG  <wl@gnu.org>
-
-	* Imakefile.in: Use `InstallAppDefaultsLong' instead of
-	`InstallAppDefaults' to make it work if build directory isn't
-	$srcdir.
-
-2002-11-24  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c (Adobe_Symbol_map): Add glyph `braceex'.
-
-2002-11-14  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c (ISO_8859_1_map): Don't include `or'.
-
-Version 1.18.1 released
-=======================
-
-2002-09-16  Werner LEMBERG  <wl@gnu.org>
-
-	* Imakefile.in (GROFF_LOCALFONTDIR): New variable.
-	(GROFF_FONTPATH): Use it.
-	Remove /usr/local/lib/font.
-
-Version 1.18.0 released
-=======================
-
-2002-06-22  Werner LEMBERG  <wl@gnu.org>
-
-	* gxditview.c (main): Handle `-help' and `--help' correctly.
-
-2002-06-17  Colin Watson  <cjwatson@debian.org>
-
-	* Imakefile.in: s/@top_builddir@/@groff_top_builddir@/.
-
-2002-04-06  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c (ISO_8859_1_map, Adobe_Symbol_map): Remove all
-	characters > 0x80.
-	* parse.c (ParseInput): Ignore `m' command.
-	(ParseDrawFunction): Don't move for unknown drawing functions.
-	Don't move for `f' drawing function.
-
-2002-03-25  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c (ISO_8859_1_map): Use `t+-', `tmu', and `tdi' symbols
-	instead of `+-', `mu', and `di', respectively.
-
-2002-02-23  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c (ISO_8859_1_map): Add `mc' symbol.
-
-2001-09-22  Werner LEMBERG  <wl@gnu.org>
-
-	* Imakefile.in: Redefine `ProgramTargetHelper' as
-	`ProgramTargetHelperNoMan' and add a call to `InstallManPageLong'
-	to make the `install.man' target work if the build directory isn't
-	$srcdir.
-
-Version 1.17.2 released
-=======================
-
-Version 1.17.1 released
-=======================
-
-2001-04-21  Albert Chin-A-Young  <china@thewrittenword.com>
-
-	* Imakefile.in: Add support for recent HP architectures.
-
-Version 1.17 released
-=====================
-
-2001-01-04  Rob Daasch  <daasch@ece.pdx.edu>
-
-	* parse.c (ParseInput): Added 'F' to command switch to swallow
-	filename strings as ignored comments.
-
-2000-12-02  Werner LEMBERG  <wl@gnu.org>
-
-	* device.c (find_file): Remove home directory in search path.
-
-2000-11-14  Werner LEMBERG  <wl@gnu.org>
-
-	* device.c (open_device_file): Remove `path' parameter.
-	(find_file): Construct font path similar to groff: First the contents
-	of GROFF_FONT_PATH, then the home directory, and finally the default
-	font path.
-	* Imakefile.in: Fix GROFF_DATAPROGRAMDIR and GROFF_FONTPATH.
-
-2000-10-23  Werner LEMBERG  <wl@gnu.org>
-
-	Change installation structure for data files from .../groff/... to
-	.../groff/<version><revision>/... to be conform with other GNU
-	programs.
-
-	* Imakefile.in: Implement it.
-
-Version 1.16.1 released
-=======================
-
-Version 1.16 released
-=====================
-
-2000-05-18  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c: Adding `cq' as an alias for "'" in latin-1 map.
-
-2000-05-03  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c: Adding `dq' as an alias for `"' in latin-1 map.
-
-2000-04-28  Werner LEMBERG  <wl@gnu.org>
-
-	* DviChar.c: Replacing `md' glyph name with `pc' in latin-1 map to
-	make it distinct from the `md' glyph in the symbol font.
-
-2000-03-03  Werner LEMBERG  <wl@gnu.org>
-
-	* Imakefile replaced with Imakefile.in which will be configured by
-	the main configure script of groff.  This will set the correct font
-	path, and it will make it possible to build xditview in a directory
-	different from $srcdir.
-
-2000-03-01  Colin Phipps  <crp22@cam.ac.uk>
-
-	* Dvi.c (OpenFile): Use tmpdir() for security reasons.
-	* xtotroff.c (MapFont): Avoid race while opening file.
-
-2000-02-06  Werner LEMBERG  <wl@gnu.org>
-
-	* Imakefile: Adapted to new directory structure.
-
-	* README: Updated.
-
-Version 1.15 released
-=====================
-
-1999-12-21  Werner LEMBERG  <wl@gnu.org>
-
-	* README: Fixed ftp GNU address.
-
-1999-12-13  Werner LEMBERG  <wl@gnu.org>
-
-	* device.c: Use extern declarations of strtok(), strchr(), and
-	getenv() only if not defined as macros.
-
-1999-11-18  Larry Jones  <larry.jones@sdrc.com>
-
-	* xditview.c: Add fallback_resources to allow running without
-	access to the app-defaults file.
-
-	* Imakefile: Added rule to create app-defaults to a C header file.
-
-	* GXditview-ad.h: New file containing fallback default resources.
-
-	* ad2c: New file to do the app-defaults -> C header file
-	conversion.
-
-1999-10-27  Larry Jones  <larry.jones@sdrc.com>
-
-	* font.c (DisposeFontSizes): If there's a problem loading a font,
-	xditview will fall-back and use the default font, but it hasn't
-	checked before unloading fonts which could result in unloading the
-	default font (possibly multiple times) and then X errors.
-
-1999-09-13  Werner LEMBERG  <wl@gnu.org>
-
-	* Imakefile (extraclean): Added Makefile.
-
-	* xditview.c (main, MakePrompt): Fixing compilation warnings.
-
-	* TODO: Imakefile should be replaced with a configure script.
-
-1999-09-13  Werner LEMBERG  <wl@gnu.org>
-
-	* Makefile: Removed.
-
-1999-09-12  Werner LEMBERG  <wl@gnu.org>
-
-	* Imakefile (GROFF_FONTPATH): Another addition.
-
-	* device.c (FONTPATH): Update to match current groff version.
-
-1999-09-11  Larry Jones  <larry.jones@sdrc.com>
-
-	* Imakefile (GROFF_LIBDIR, GROFF_FONTPATH): Update to match
-	current groff version.
-
-	* Dvi.c (Realize, Destroy), DviP.h, draw.c (setFillGC), gray*.bm:
-	Allow 8 levels of gray rather than just 1.
-
-	* draw.c (DrawFilledCircle, DrawFilledEllipse, DrawFilledPolygon):
-	Draw outlines to prevent gaps between abutting figures.
-
-1999-05-27  Werner LEMBERG  <wl@gnu.org>
-
-	* xtotroff.c (usage): Fixed typo.
-
-Mon Sep 11 10:40:33 1995  James Clark  <jjc@jclark.com>
-
-	* device.c (INT_MIN, INT_MAX): Don't define if already defined.
-
-Mon Aug  8 11:14:11 1994  James Clark  (jjc@jclark.com)
-
-	* DviChar.c (Adobe_Symbol_map): Use \(nb for notsubset.
-
-Tue Apr 19 04:41:16 1994  James Clark  (jjc@jclark.com)
-
-	* Dvi.c (resources): Change default for background and foreground
-	to "XtDefaultBackground" and "XtDefaultForeground".
-
-Sat Feb 12 10:38:47 1994  James Clark  (jjc@jclark.com)
-
-	* DviChar.c (Adobe_Symbol_map): Rename radicalex to rn.
-
-Thu May 27 20:30:12 1993  James Clark  (jjc@jclark.com)
-
-	* device.c (isascii): Define if necessary.
-	(canonicalize_name): Cast argument to isdigit() to unsigned char.
-
-Thu Apr 29 18:36:57 1993  James Clark  (jjc at jclark.com)
-
-	* xditview.c: Include <X11/Xos.h>.
-	(NewFile): Don't declare rindex(). Use strrchr() rather than
-	rindex().
-
-Tue Mar 30 15:12:09 1993  James Clark  (jjc at jclark)
-
-	* draw.c (charExists): Check that fi->per_char is not NULL.
-
-Sat Dec 12 17:42:40 1992  James Clark  (jjc at jclark)
-
-	* Dvi.c (SetGeometry): Cast XtMakeGeometryRequest arguments.
-
-	* draw.c (DrawPolygon, DrawFilledPolygon): Cast Xtfree argument.
-
-	* font.c (DisposeFontSizes): Add declaration.
-
-	* draw.c (FakeCharacter): Add declaration.
-
-Wed Oct 28 13:24:00 1992  James Clark  (jjc at jclark)
-
-	* Imakefile (install.dev): Deleted.
-	(fonts): New target.
-
-Mon Oct 12 10:50:44 1992  James Clark  (jjc at jclark)
-
-	* Imakefile (install.dev): Say when we're installing devX*-12.
-
-	* Imakefile (install.dev): Depends on DESC and FontMap.
-
-Thu Oct  1 20:03:45 1992  James Clark  (jjc at jclark)
-
-	* xditview.c (Syntax): Mention -filename option.
-
-Sat Aug 15 12:56:39 1992  James Clark  (jjc at jclark)
-
-	* GXditview.ad: Bind space and return to NextPage. Bind backspace
-	and delete to previous page.
-
-	* DviChar.c (Adobe_Symbol_map): Add `an'.
-
-	* DviChar.c (Adobe_Symbol_map): Add arrowvertex, arrowverttp, and
-	arrowvertbt.
-
-Mon Aug 10 11:54:27 1992  James Clark  (jjc at jclark)
-
-	* FontMap: Add m/p fields to the fonts names.
-
-Sat Aug  8 12:00:28 1992  James Clark  (jjc at jclark)
-
-	* DESC: Leave font positions 5-9 blank.
-
-Tue Jul 28 11:37:05 1992  James Clark  (jjc at jclark)
-
-	* Imakefile: Don't use gendef.  Pass definition of FONTPATH using
-	DEFINES.
-	(path.h): Deleted.
-	(device.c): Don't include path.h.  Provide default definition of
-	FONTPATH.
-
-Mon Jul  6 14:06:53 1992  James Clark  (jjc at jclark)
-
-	* Imakefile: Don't install tmac.X and tmac.Xps.
-	* tmac.X, tmac.Xps: Moved to ../macros.
-
-	* Imakefile: Don't install eqnchar.
-	* eqnchar: Deleted.
-
-Sun Jun 14 12:55:02 1992  James Clark  (jjc@jclark)
-
-	* tmac.Xps: Handle OE, oe, lq, rq.
-	* draw.c (FakeCharacter): Don't handle these.
-
-	* draw.c (FakeCharacter): Don't handle f/. 
-
-Mon Jun  8 11:46:37 1992  James Clark  (jjc@jclark)
-
-	* tmac.X: Translate char160 to space.
-
-Sun Jun  7 14:39:53 1992  James Clark  (jjc@jclark)
-
-	* tmac.X: Do `mso tmac.psic' before restoring compatibility mode.
-
-	* tmac.X: Add \(OE, \(oe, \(ah, \(ao, \(ho.
-
-	* tmac.Xps: Make it work in compatibility mode.
-	Redo existing character definitions with .Xps-char.
-	Add more character definitions.
-	(Xps-char): New macro.
-
-Sat Jun  6 21:46:03 1992  James Clark  (jjc@jclark)
-
-	* DviChar.c (Adobe_Symbol_map): Add +h, +f, +p, Fn, lz.
-	* tmac.X: Add \(bq, \(Bq, \(aq.
-	* tmac.Xps: Handle \(aq, \(bq, \(Bq, \(Fn.
-
-Wed Jun  3 11:11:15 1992  James Clark  (jjc@jclark)
-
-	* DviChar.c (Adobe_Symbol_map): Add wp.
-
-Tue Apr 21 09:21:59 1992  James Clark  (jjc at jclark)
-
-	* GXditview.ad: Bind n, p, q keys to NextPage, PreviousPage and
-	Quit actions.
-
-	* xditview.c (RerasterizeAction): New function.
-	(xditview_actions): Add RerasterizeAction.
-	* GXditview.ad: Bind r key to Rerasterize action.
-
-Fri Apr 17 08:25:36 1992  James Clark  (jjc at jclark)
-
-	* xditview.c: Add -filename option.
-	(main): Copy any -filename argument into current_file_name.
-
-Mon Mar 16 10:21:58 1992  James Clark  (jjc at jclark)
-
-	* tmac.X: Load tmac.pspic.
-
-Sun Mar  8 11:27:19 1992  James Clark  (jjc at jclark)
-
-	* Lex.c (GetLine, GetWord, GetNumber): Rewrite.
-
-Sat Oct 12 22:58:52 1991  James Clark  (jjc at jclark)
-
-	* Dvi.c (SetDevice): If the size change request is refused but a
-	larger geometry is offered, request that.
-
-Wed Oct  9 12:27:48 1991  James Clark  (jjc at jclark)
-
-	* font.c (InstallFontSizes): Ignore FontNameAverageWidth component.
-
-	* Dvi.c (default_font_map): Add `adobe' to font names to avoid
-	ambiguity.
-
-	* FontMap: New file.
-	* FontMap.X100, FontMap.X75: Deleted.
-	* xtotroff.c (main, usage): Add -s and -r options.
-	(MapFont): Change the font pattern to have the selected resolution and
-	size.
-	* Imakefile (install.dev): Use FontMap and supply appropriate -s
-	and -r options.
-
-	* xtotroff.c (MapFont): Check for ambiguity by comparing canonicalized
-	font names.
-
-	* DviP.h (DviFontList): Add initialized and scalable members.
-	(font.c):  Add support for scalable fonts based on R5 xditview.
-
-	* DviChar.c: Use xmalloc rather than malloc.
-	* xditview.c (xmalloc): New function.
-	* xtotroff.c (xmalloc): New function.
-	* other files: Use XtMalloc and XtFree instead of malloc and free.
-
-Thu Aug 29 20:15:31 1991  James Clark  (jjc at jclark)
-
-	* draw.c (setGC): Do multiplication in floating point to avoid
-	overflow.
-
-Tue Aug 13 12:04:41 1991  James Clark  (jjc at jclark)
-
-	* draw.c (FakeCharacter): Remove casts in defintion of pack2.
-
-Tue Jul 30 11:42:39 1991  James Clark  (jjc at jclark)
-
-	* tmac.Xps: New file.
-	* Imakefile (install): Install tmac.Xps.
-
-Tue Jul  2 09:31:37 1991  James Clark  (jjc at jclark)
-
-	* xtotroff.c (main): Pass argv[0] to usage().
-
-Sun Jun 30 12:34:06 1991  James Clark  (jjc at jclark)
-
-	* xtotroff.c (MapFont): Handle the case where XLoadQueryFont
-	returns NULL.
-
-Sat Jun 29 12:32:52 1991  James Clark  (jjc at jclark)
-
-	* Imakefile: Use ../gendef to generate path.h.
-
-Sun Jun 16 13:26:34 1991  James Clark  (jjc at jclark)
-
-	* Imakefile (depend.o): Change to device.o.
-
-Sun Jun  2 12:17:56 1991  James Clark  (jjc at jclark)
-
-	* Imakefile: Remove spaces from the beginning of variable
-	assignment lines.
-
-Sun May 26 14:14:01 1991  James Clark  (jjc at jclark)
-
-	* xditview.c (Syntax): Update.
-
-	* Dvi.c (DviSaveToFile, SaveToFile): New functions.
-	(FindPage): Check that we're not readingTmp before checking for
-	end of file of normal input file.
-	(ClassPartInitialize): New function.
-	* Dvi.h: Add declaration of DviSaveToFile.
-	* DviP.h: Add save method to DviClassPart. Declare
-	InheritSaveToFile.
-	* xditview.c (DoPrint, Print, PrintAction): New functions.
-	* xditview.c: Add print menu entry.
-	* xditview.c: Provide printCommand application resource.
-	* lex.c: Don't output EOF to temporary file.
-
-	* Dvi.c (QueryGeometry): Check request->request_mode.
-
-	* Dvi.c (SetDevice): New function.
-	(SetDeviceResolution): Deleted.
-
-	* Dvi.c: Add resolution resource.
-	* DviP.h: Add definitions of XtNResolution and XtCResolution.
-	* xditview.c: Add -resolution argument.
-	* GXditview.ad: Add default for GXditview.height.
-	* Dvi.c (Initialize, SetDevice): Use default_resolution.
-
-	* Dvi.c: Make MY_HEIGHT and MY_WIDTH use the paperlength and
-	paperwidth commands in the DESC file.
-	
-	* Dvi.c: Add SS font to default font map.
-
-	* draw.c: Rewritten so as not to assume device and display
-	resolution is the same.
-	* DviP.h: Include device.h. Add device_font member to DviFontList.
-	Add adjustable array to DviCharCache. Add text_x_width,
-	text_device_width, word_flag, device_font, device_font_number,
-	device, native, device_resolution, display_resolution,
-	paperlength, paperwidth, scale_factor, sizescale members.
-	* Dvi.c (Initialize): Initialize new variable used by draw.c.
-	(Destroy): Call device_destroy.
-	* font.c (MaxFontPosition): New function.
-	(LookupFontSizeBySize): Handle sizescale.
-	(InstallFont): Load the device font.
-	(ForgetFonts): New function.
-	(QueryDeviceFont): New function.
-	* parse.c (ParseInput): Handle t and u commands. Split off
-	character output into draw.c.
-	(ParseDeviceControl): Ignore res command. Use the device argument
-	to the T command.
-
-	* font.c (MapXNameToDviName): Ifdefed out.
-
-	* path.h: New file.
-	* device.c, device.h: New files.
-
-	* DviChar.c: Add entries for lB, rB, oq, lC, rC, md.
-
-	* INSTALL: New file.
-
-	* libxdvi: Merged into main directory.
-	* xtotroff.c, xditview.c: Change includes accordingly.	
-
-	* devX75, devX100: Merged into main directory.
-	* xditview.man: Renamed to gxditview.man.
-
-	* Xditview.ad: Renamed to GXditview.ad.
-	* xditview.c (main): Use class of GXditview rather than xditview.
-
-	* Imakefile: New file.
-	* Makefile: Deleted.
-
-	* xtotroff.c (MapFont): Unlink output file before opening it.
-
-	* Started separate ChangeLog.
diff --git a/contrib/groff/src/xditview/DESC b/contrib/groff/src/xditview/DESC
deleted file mode 100644
index 172170c..0000000
--- a/contrib/groff/src/xditview/DESC
+++ /dev/null
@@ -1,9 +0,0 @@
-styles R I B BI
-fonts 6 0 0 0 0 0 S
-sizes 8 10 12 14 18 24 0
-res 75
-X11
-hor 1
-vert 1
-unitwidth 10
-postpro gxditview
diff --git a/contrib/groff/src/xditview/Dvi.c b/contrib/groff/src/xditview/Dvi.c
deleted file mode 100644
index 08eb810..0000000
--- a/contrib/groff/src/xditview/Dvi.c
+++ /dev/null
@@ -1,573 +0,0 @@
-#ifndef SABER
-#ifndef lint
-static char Xrcsid[] = "$XConsortium: Dvi.c,v 1.9 89/12/10 16:12:25 rws Exp $";
-#endif /* lint */
-#endif /* SABER */
-
-/*
- * Dvi.c - Dvi display widget
- *
- */
-
-#define XtStrlen(s)	((s) ? strlen(s) : 0)
-
-  /* The following are defined for the reader's convenience.  Any
-     Xt..Field macro in this code just refers to some field in
-     one of the substructures of the WidgetRec.  */
-
-#include <X11/IntrinsicP.h>
-#include <X11/StringDefs.h>
-#include <X11/Xmu/Converters.h>
-#include <stdio.h>
-#include <ctype.h>
-#include "DviP.h"
-
-/****************************************************************
- *
- * Full class record constant
- *
- ****************************************************************/
-
-/* Private Data */
-
-static char default_font_map[] =  "\
-TR	-adobe-times-medium-r-normal--*-100-*-*-*-*-iso8859-1\n\
-TI	-adobe-times-medium-i-normal--*-100-*-*-*-*-iso8859-1\n\
-TB	-adobe-times-bold-r-normal--*-100-*-*-*-*-iso8859-1\n\
-TBI	-adobe-times-bold-i-normal--*-100-*-*-*-*-iso8859-1\n\
-CR	-adobe-courier-medium-r-normal--*-100-*-*-*-*-iso8859-1\n\
-CI	-adobe-courier-medium-o-normal--*-100-*-*-*-*-iso8859-1\n\
-CB	-adobe-courier-bold-r-normal--*-100-*-*-*-*-iso8859-1\n\
-CBI	-adobe-courier-bold-o-normal--*-100-*-*-*-*-iso8859-1\n\
-HR	-adobe-helvetica-medium-r-normal--*-100-*-*-*-*-iso8859-1\n\
-HI	-adobe-helvetica-medium-o-normal--*-100-*-*-*-*-iso8859-1\n\
-HB	-adobe-helvetica-bold-r-normal--*-100-*-*-*-*-iso8859-1\n\
-HBI	-adobe-helvetica-bold-o-normal--*-100-*-*-*-*-iso8859-1\n\
-NR	-adobe-new century schoolbook-medium-r-normal--*-100-*-*-*-*-iso8859-1\n\
-NI	-adobe-new century schoolbook-medium-i-normal--*-100-*-*-*-*-iso8859-1\n\
-NB	-adobe-new century schoolbook-bold-r-normal--*-100-*-*-*-*-iso8859-1\n\
-NBI	-adobe-new century schoolbook-bold-i-normal--*-100-*-*-*-*-iso8859-1\n\
-S	-adobe-symbol-medium-r-normal--*-100-*-*-*-*-adobe-fontspecific\n\
-SS	-adobe-symbol-medium-r-normal--*-100-*-*-*-*-adobe-fontspecific\n\
-";
-
-#define offset(field) XtOffset(DviWidget, field)
-
-#define MY_WIDTH(dw) ((int)(dw->dvi.paperwidth * dw->dvi.scale_factor + .5))
-#define MY_HEIGHT(dw) ((int)(dw->dvi.paperlength * dw->dvi.scale_factor + .5))
-
-static XtResource resources[] = { 
-	{XtNfontMap, XtCFontMap, XtRString, sizeof (char *),
-	 offset(dvi.font_map_string), XtRString, default_font_map},
-	{XtNforeground, XtCForeground, XtRPixel, sizeof (unsigned long),
-	 offset(dvi.foreground), XtRString, "XtDefaultForeground"},
-	{XtNbackground, XtCBackground, XtRPixel, sizeof (unsigned long),
-	 offset(dvi.background), XtRString, "XtDefaultBackground"},
-	{XtNpageNumber, XtCPageNumber, XtRInt, sizeof (int),
-	 offset(dvi.requested_page), XtRString, "1"},
-	{XtNlastPageNumber, XtCLastPageNumber, XtRInt, sizeof (int),
-	 offset (dvi.last_page), XtRString, "0"},
-	{XtNfile, XtCFile, XtRFile, sizeof (FILE *),
-	 offset (dvi.file), XtRFile, (char *) 0},
-	{XtNseek, XtCSeek, XtRBoolean, sizeof (Boolean),
-	 offset(dvi.seek), XtRString, "false"},
-	{XtNfont, XtCFont, XtRFontStruct, sizeof (XFontStruct *),
-	 offset(dvi.default_font), XtRString, "xtdefaultfont"},
-	{XtNbackingStore, XtCBackingStore, XtRBackingStore, sizeof (int),
-	 offset(dvi.backing_store), XtRString, "default"},
-	{XtNnoPolyText, XtCNoPolyText, XtRBoolean, sizeof (Boolean),
-	 offset(dvi.noPolyText), XtRString, "false"},
-	{XtNresolution, XtCResolution, XtRInt, sizeof(int),
-	 offset(dvi.default_resolution), XtRString, "75"},
-};
-
-#undef offset
-
-static void		ClassInitialize ();
-static void		ClassPartInitialize();
-static void		Initialize(), Realize (), Destroy (), Redisplay ();
-static Boolean		SetValues (), SetValuesHook ();
-static XtGeometryResult	QueryGeometry ();
-static void		ShowDvi ();
-static void		CloseFile (), OpenFile ();
-static void		FindPage ();
-
-static void		SaveToFile ();
-
-DviClassRec dviClassRec = {
-{
-	&widgetClassRec,		/* superclass		  */	
-	"Dvi",				/* class_name		  */
-	sizeof(DviRec),			/* size			  */
-	ClassInitialize,		/* class_initialize	  */
-	ClassPartInitialize,		/* class_part_initialize  */
-	FALSE,				/* class_inited		  */
-	Initialize,			/* initialize		  */
-	NULL,				/* initialize_hook	  */
-	Realize,			/* realize		  */
-	NULL,				/* actions		  */
-	0,				/* num_actions		  */
-	resources,			/* resources		  */
-	XtNumber(resources),		/* resource_count	  */
-	NULLQUARK,			/* xrm_class		  */
-	FALSE,				/* compress_motion	  */
-	TRUE,				/* compress_exposure	  */
-	TRUE,				/* compress_enterleave    */
-	FALSE,				/* visible_interest	  */
-	Destroy,			/* destroy		  */
-	NULL,				/* resize		  */
-	Redisplay,			/* expose		  */
-	SetValues,			/* set_values		  */
-	SetValuesHook,			/* set_values_hook	  */
-	NULL,				/* set_values_almost	  */
-	NULL,				/* get_values_hook	  */
-	NULL,				/* accept_focus		  */
-	XtVersion,			/* version		  */
-	NULL,				/* callback_private	  */
-	0,				/* tm_table		  */
-	QueryGeometry,			/* query_geometry	  */
-	NULL,				/* display_accelerator	  */
-	NULL				/* extension		  */
-},{
-	SaveToFile,			/* save    */
-},
-};
-
-WidgetClass dviWidgetClass = (WidgetClass) &dviClassRec;
-
-static void ClassInitialize ()
-{
-	XtAddConverter( XtRString, XtRBackingStore, XmuCvtStringToBackingStore,
-			NULL, 0 );
-}
-
-/****************************************************************
- *
- * Private Procedures
- *
- ****************************************************************/
-
-/* ARGSUSED */
-static void Initialize(request, new)
-	Widget request, new;
-{
-	DviWidget	dw = (DviWidget) new;
-
-	dw->dvi.current_page = 0;
-	dw->dvi.font_map = 0;
-	dw->dvi.cache.index = 0;
-	dw->dvi.text_x_width = 0;
-	dw->dvi.text_device_width = 0;
-	dw->dvi.word_flag = 0;
-	dw->dvi.file = 0;
-	dw->dvi.tmpFile = 0;
-	dw->dvi.state = 0;
-	dw->dvi.readingTmp = 0;
-	dw->dvi.cache.char_index = 0;
-	dw->dvi.cache.font_size = -1;
-	dw->dvi.cache.font_number = -1;
-	dw->dvi.cache.adjustable[0] = 0;
-	dw->dvi.file_map = 0;
-	dw->dvi.fonts = 0;
-	dw->dvi.seek = False;
-	dw->dvi.device_resolution = dw->dvi.default_resolution;
-	dw->dvi.display_resolution = dw->dvi.default_resolution;
-	dw->dvi.paperlength = dw->dvi.default_resolution*11;
-	dw->dvi.paperwidth = (dw->dvi.default_resolution*8
-			      + dw->dvi.default_resolution/2);
-	dw->dvi.scale_factor = 1.0;
-	dw->dvi.sizescale = 1;
-	dw->dvi.line_thickness = -1;
-	dw->dvi.line_width = 1;
-	dw->dvi.fill = DVI_FILL_MAX;
-	dw->dvi.device_font = 0;
-	dw->dvi.device_font_number = -1;
-	dw->dvi.device = 0;
-	dw->dvi.native = 0;
-}
-
-#include "gray1.bm"
-#include "gray2.bm"
-#include "gray3.bm"
-#include "gray4.bm"
-#include "gray5.bm"
-#include "gray6.bm"
-#include "gray7.bm"
-#include "gray8.bm"
-
-static void
-Realize (w, valueMask, attrs)
-	Widget			w;
-	XtValueMask		*valueMask;
-	XSetWindowAttributes	*attrs;
-{
-	DviWidget	dw = (DviWidget) w;
-	XGCValues	values;
-
-	if (dw->dvi.backing_store != Always + WhenMapped + NotUseful) {
-		attrs->backing_store = dw->dvi.backing_store;
-		*valueMask |= CWBackingStore;
-	}
-	XtCreateWindow (w, (unsigned)InputOutput, (Visual *) CopyFromParent,
-			*valueMask, attrs);
-	values.foreground = dw->dvi.foreground;
-	values.cap_style = CapRound;
-	values.join_style = JoinRound;
-	values.line_width = dw->dvi.line_width;
-	dw->dvi.normal_GC = XCreateGC (XtDisplay (w), XtWindow (w),
-				       GCForeground|GCCapStyle|GCJoinStyle
-				       |GCLineWidth,
-				       &values);
-	dw->dvi.gray[0] = XCreateBitmapFromData(XtDisplay (w), XtWindow (w),
-					     gray1_bits,
-					     gray1_width, gray1_height);
-	dw->dvi.gray[1] = XCreateBitmapFromData(XtDisplay (w), XtWindow (w),
-					     gray2_bits,
-					     gray2_width, gray2_height);
-	dw->dvi.gray[2] = XCreateBitmapFromData(XtDisplay (w), XtWindow (w),
-					     gray3_bits,
-					     gray3_width, gray3_height);
-	dw->dvi.gray[3] = XCreateBitmapFromData(XtDisplay (w), XtWindow (w),
-					     gray4_bits,
-					     gray4_width, gray4_height);
-	dw->dvi.gray[4] = XCreateBitmapFromData(XtDisplay (w), XtWindow (w),
-					     gray5_bits,
-					     gray5_width, gray5_height);
-	dw->dvi.gray[5] = XCreateBitmapFromData(XtDisplay (w), XtWindow (w),
-					     gray6_bits,
-					     gray6_width, gray6_height);
-	dw->dvi.gray[6] = XCreateBitmapFromData(XtDisplay (w), XtWindow (w),
-					     gray7_bits,
-					     gray7_width, gray7_height);
-	dw->dvi.gray[7] = XCreateBitmapFromData(XtDisplay (w), XtWindow (w),
-					     gray8_bits,
-					     gray8_width, gray8_height);
-	values.background = dw->dvi.background;
-	values.stipple = dw->dvi.gray[5];
-	dw->dvi.fill_GC = XCreateGC (XtDisplay (w), XtWindow (w),
-				     GCForeground|GCBackground|GCStipple,
-				     &values);
-
-	dw->dvi.fill_type = 9;
-
-	if (dw->dvi.file)
-		OpenFile (dw);
-	ParseFontMap (dw);
-}
-
-static void
-Destroy(w)
-	Widget w;
-{
-	DviWidget	dw = (DviWidget) w;
-
-	XFreeGC (XtDisplay (w), dw->dvi.normal_GC);
-	XFreeGC (XtDisplay (w), dw->dvi.fill_GC);
-	XFreePixmap (XtDisplay (w), dw->dvi.gray[0]);
-	XFreePixmap (XtDisplay (w), dw->dvi.gray[1]);
-	XFreePixmap (XtDisplay (w), dw->dvi.gray[2]);
-	XFreePixmap (XtDisplay (w), dw->dvi.gray[3]);
-	XFreePixmap (XtDisplay (w), dw->dvi.gray[4]);
-	XFreePixmap (XtDisplay (w), dw->dvi.gray[5]);
-	XFreePixmap (XtDisplay (w), dw->dvi.gray[6]);
-	XFreePixmap (XtDisplay (w), dw->dvi.gray[7]);
-	DestroyFontMap (dw->dvi.font_map);
-	DestroyFileMap (dw->dvi.file_map);
-	device_destroy (dw->dvi.device);
-}
-
-/*
- * Repaint the widget window
- */
-
-/* ARGSUSED */
-static void
-Redisplay(w, event, region)
-	Widget w;
-	XEvent *event;
-	Region region;
-{
-	DviWidget	dw = (DviWidget) w;
-	XRectangle	extents;
-	
-	XClipBox (region, &extents);
-	dw->dvi.extents.x1 = extents.x;
-	dw->dvi.extents.y1 = extents.y;
-	dw->dvi.extents.x2 = extents.x + extents.width;
-	dw->dvi.extents.y2 = extents.y + extents.height;
-	ShowDvi (dw);
-}
-
-/*
- * Set specified arguments into widget
- */
-/* ARGSUSED */
-static Boolean
-SetValues (current, request, new)
-	DviWidget current, request, new;
-{
-	Boolean		redisplay = FALSE;
-	char		*new_map;
-	int		cur, req;
-
-	if (current->dvi.font_map_string != request->dvi.font_map_string) {
-		new_map = XtMalloc (strlen (request->dvi.font_map_string) + 1);
-		if (new_map) {
-			redisplay = TRUE;
-			strcpy (new_map, request->dvi.font_map_string);
-			new->dvi.font_map_string = new_map;
-			if (current->dvi.font_map_string)
-				XtFree (current->dvi.font_map_string);
-			current->dvi.font_map_string = 0;
-			ParseFontMap (new);
-		}
-	}
-
-	req = request->dvi.requested_page;
-	cur = current->dvi.requested_page;
-	if (cur != req) {
-		if (!request->dvi.file)
-		    req = 0;
-		else {
-		    if (req < 1)
-			    req = 1;
-		    if (current->dvi.last_page != 0 &&
-			req > current->dvi.last_page)
-			    req = current->dvi.last_page;
-		}
-		if (cur != req)
-	    	    redisplay = TRUE;
-		new->dvi.requested_page = req;
-		if (current->dvi.last_page == 0 && req > cur)
-			FindPage (new);
-	}
-
-	return redisplay;
-}
-
-/*
- * use the set_values_hook entry to check when
- * the file is set
- */
-
-static Boolean
-SetValuesHook (dw, args, num_argsp)
-	DviWidget	dw;
-	ArgList		args;
-	Cardinal	*num_argsp;
-{
-	Cardinal	i;
-
-	for (i = 0; i < *num_argsp; i++) {
-		if (!strcmp (args[i].name, XtNfile)) {
-			CloseFile (dw);
-			OpenFile (dw);
-			return TRUE;
-		}
-	}
-	return FALSE;
-}
-
-static void CloseFile (dw)
-	DviWidget	dw;
-{
-	if (dw->dvi.tmpFile)
-		fclose (dw->dvi.tmpFile);
-	ForgetPagePositions (dw);
-}
-
-static void OpenFile (dw)
-	DviWidget	dw;
-{
-	dw->dvi.tmpFile = 0;
-	if (!dw->dvi.seek)
-		dw->dvi.tmpFile = tmpfile();
-	dw->dvi.requested_page = 1;
-	dw->dvi.last_page = 0;
-}
-
-static XtGeometryResult
-QueryGeometry (w, request, geometry_return)
-	Widget			w;
-	XtWidgetGeometry	*request, *geometry_return;
-{
-	XtGeometryResult	ret;
-	DviWidget		dw = (DviWidget) w;
-
-	ret = XtGeometryYes;
-	if (((request->request_mode & CWWidth)
-	     && request->width < MY_WIDTH(dw))
-	    || ((request->request_mode & CWHeight)
-		&& request->height < MY_HEIGHT(dw)))
-		ret = XtGeometryAlmost;
-	geometry_return->width = MY_WIDTH(dw);
-	geometry_return->height = MY_HEIGHT(dw);
-	geometry_return->request_mode = CWWidth|CWHeight;
-	return ret;
-}
-
-SetDevice (dw, name)
-	DviWidget	dw;
-	char 		*name;
-{
-	XtWidgetGeometry	request, reply;
-	XtGeometryResult ret;
-
-	ForgetFonts (dw);
-	dw->dvi.device = device_load (name);
-	if (!dw->dvi.device)
-		return;
-	dw->dvi.sizescale = dw->dvi.device->sizescale;
-	dw->dvi.device_resolution = dw->dvi.device->res;
-	dw->dvi.native = dw->dvi.device->X11;
-	dw->dvi.paperlength = dw->dvi.device->paperlength;
-	dw->dvi.paperwidth = dw->dvi.device->paperwidth;
-	if (dw->dvi.native) {
-		dw->dvi.display_resolution = dw->dvi.device_resolution;
-		dw->dvi.scale_factor = 1.0;
-	}
-	else {
-		dw->dvi.display_resolution = dw->dvi.default_resolution;
-		dw->dvi.scale_factor = ((double)dw->dvi.display_resolution
-					/ dw->dvi.device_resolution);
-	}
-	request.request_mode = CWWidth|CWHeight;
-	request.width = MY_WIDTH(dw);
-	request.height = MY_HEIGHT(dw);
-	ret = XtMakeGeometryRequest ((Widget)dw, &request, &reply);
-	if (ret == XtGeometryAlmost
-	    && reply.height >= request.height
-	    && reply.width >= request.width) {
-		request.width = reply.width;
-		request.height = reply.height;
-		XtMakeGeometryRequest ((Widget)dw, &request, &reply);
-	}
-}
-
-static void
-ShowDvi (dw)
-	DviWidget	dw;
-{
-	if (!dw->dvi.file) {
-		static char Error[] = "No file selected";
-
-		XSetFont (XtDisplay(dw), dw->dvi.normal_GC,
-			  dw->dvi.default_font->fid);
-		XDrawString (XtDisplay (dw), XtWindow (dw), dw->dvi.normal_GC,
-			     20, 20, Error, strlen (Error));
-		return;
-	}
-
-	FindPage (dw);
-	
-	dw->dvi.display_enable = 1;
-	ParseInput (dw);
-	if (dw->dvi.last_page && dw->dvi.requested_page > dw->dvi.last_page)
-		dw->dvi.requested_page = dw->dvi.last_page;
-}
-
-static void
-FindPage (dw)
-	DviWidget	dw;
-{
-	int	i;
-	long	file_position;
-
-	if (dw->dvi.requested_page < 1)
-		dw->dvi.requested_page = 1;
-
-	if (dw->dvi.last_page != 0 && dw->dvi.requested_page > dw->dvi.last_page)
-		dw->dvi.requested_page = dw->dvi.last_page;
-
-	file_position = SearchPagePosition (dw, dw->dvi.requested_page);
-	if (file_position != -1) {
-		FileSeek(dw, file_position);
-		dw->dvi.current_page = dw->dvi.requested_page;
-	} else {
-		for (i=dw->dvi.requested_page; i > 0; i--) {
-			file_position = SearchPagePosition (dw, i);
-			if (file_position != -1)
-				break;
-		}
-		if (file_position == -1)
-			file_position = 0;
-		FileSeek (dw, file_position);
-
-		dw->dvi.current_page = i;
-		
-		dw->dvi.display_enable = 0;
-		while (dw->dvi.current_page != dw->dvi.requested_page) {
-			dw->dvi.current_page = ParseInput (dw);
-			/*
-			 * at EOF, seek back to the beginning of this page.
-			 */
-			if (!dw->dvi.readingTmp && feof (dw->dvi.file)) {
-				file_position = SearchPagePosition (dw,
-						dw->dvi.current_page);
-				if (file_position != -1)
-					FileSeek (dw, file_position);
-				dw->dvi.requested_page = dw->dvi.current_page;
-				break;
-			}
-		}
-	}
-}
-
-void DviSaveToFile(w, fp)
-	Widget w;
-	FILE *fp;
-{
-	XtCheckSubclass(w, dviWidgetClass, NULL);
-	(*((DviWidgetClass) XtClass(w))->command_class.save)(w, fp);
-}
-
-static
-void SaveToFile(w, fp)
-	Widget w;
-	FILE *fp;
-{
-	DviWidget dw = (DviWidget)w;
-	long pos;
-	int c;
-
-	if (dw->dvi.tmpFile) {
-		pos = ftell(dw->dvi.tmpFile);
-		if (dw->dvi.ungot) {
-			pos--;
-			dw->dvi.ungot = 0;
-			/* The ungot character is in the tmpFile, so we don't
-			   want to read it from file. */
-			(void)getc(dw->dvi.file);
-		}
-	}
-	else
-		pos = ftell(dw->dvi.file);
-	FileSeek(dw, 0L);
-	while (DviGetC(dw, &c) != EOF)
-		if (putc(c, fp) == EOF) {
-			/* XXX print error message */
-			break;
-		}
-	FileSeek(dw, pos);
-}
-
-static
-void ClassPartInitialize(widget_class)
-	WidgetClass widget_class;
-{
-	DviWidgetClass wc = (DviWidgetClass)widget_class;
-	DviWidgetClass super = (DviWidgetClass) wc->core_class.superclass;
-	if (wc->command_class.save == InheritSaveToFile)
-		wc->command_class.save = super->command_class.save;
-}
-	
-/*
-Local Variables:
-c-indent-level: 8
-c-continued-statement-offset: 8
-c-brace-offset: -8
-c-argdecl-indent: 8
-c-label-offset: -8
-c-tab-always-indent: nil
-End:
-*/
diff --git a/contrib/groff/src/xditview/Dvi.h b/contrib/groff/src/xditview/Dvi.h
deleted file mode 100644
index 5aab7d8..0000000
--- a/contrib/groff/src/xditview/Dvi.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
-* $XConsortium: Dvi.h,v 1.4 89/07/21 14:22:06 jim Exp $
-*/
-
-#ifndef _XtDvi_h
-#define _XtDvi_h
-
-/***********************************************************************
- *
- * Dvi Widget
- *
- ***********************************************************************/
-
-/* Parameters:
-
- Name		     Class		RepType		Default Value
- ----		     -----		-------		-------------
- background	     Background		pixel		White
- foreground	     Foreground		Pixel		Black
- fontMap	     FontMap		char *		...
- pageNumber	     PageNumber		int		1
-*/
-
-#define XtNfontMap	"fontMap"
-#define XtNpageNumber	"pageNumber"
-#define XtNlastPageNumber   "lastPageNumber"
-#define XtNnoPolyText	"noPolyText"
-#define XtNseek		"seek"
-#define XtNresolution	"resolution"
-
-#define XtCFontMap	"FontMap"
-#define XtCPageNumber	"PageNumber"
-#define XtCLastPageNumber   "LastPageNumber"
-#define XtCNoPolyText	"NoPolyText"
-#define XtCSeek		"Seek"
-#define XtCResolution	"Resolution"
-
-typedef struct _DviRec *DviWidget;  /* completely defined in DviPrivate.h */
-typedef struct _DviClassRec *DviWidgetClass;    /* completely defined in DviPrivate.h */
-
-extern WidgetClass dviWidgetClass;
-
-extern void DviSaveToFile();
-
-#endif /* _XtDvi_h */
-/* DON'T ADD STUFF AFTER THIS #endif */
diff --git a/contrib/groff/src/xditview/DviChar.c b/contrib/groff/src/xditview/DviChar.c
deleted file mode 100644
index ac4d7ce..0000000
--- a/contrib/groff/src/xditview/DviChar.c
+++ /dev/null
@@ -1,662 +0,0 @@
-/*
- * DviChar.c
- *
- * Map DVI (ditroff output) character names to
- * font indexes and back
- */
-
-#include   "DviChar.h"
-
-extern char *xmalloc();
-
-#define allocHash() ((DviCharNameHash *) xmalloc (sizeof (DviCharNameHash)))
-
-struct map_list {
-	struct map_list	*next;
-	DviCharNameMap	*map;
-};
-
-static struct map_list	*world;
-
-static int	standard_maps_loaded = 0;
-static void	load_standard_maps ();
-static int	hash_name ();
-static		dispose_hash(), compute_hash();
-
-DviCharNameMap *
-DviFindMap (encoding)
-	char	*encoding;
-{
-	struct map_list	*m;
-
-	if (!standard_maps_loaded)
-		load_standard_maps ();
-	for (m = world; m; m=m->next)
-		if (!strcmp (m->map->encoding, encoding))
-			return m->map;
-	return 0;
-}
-
-void
-DviRegisterMap (map)
-	DviCharNameMap	*map;
-{
-	struct map_list	*m;
-
-	if (!standard_maps_loaded)
-		load_standard_maps ();
-	for (m = world; m; m = m->next)
-		if (!strcmp (m->map->encoding, map->encoding))
-			break;
-	if (!m) {
-		m = (struct map_list *) xmalloc (sizeof *m);
-		m->next = world;
-		world = m;
-	}
-	dispose_hash (map);
-	m->map = map;
-	compute_hash (map);
-}
-
-static
-dispose_hash (map)
-	DviCharNameMap	*map;
-{
-	DviCharNameHash	**buckets;
-	DviCharNameHash	*h, *next;
-	int		i;
-
-	buckets = map->buckets;
-	for (i = 0; i < DVI_HASH_SIZE; i++) {
-		for (h = buckets[i]; h; h=next) {
-			next = h->next;
-			free (h);
-		}
-	}
-}
-
-static int
-hash_name (name)
-	char	*name;
-{
-	int	i = 0;
-
-	while (*name)
-		i = (i << 1) ^ *name++;
-	if (i < 0)
-		i = -i;
-	return i;
-}
-
-static
-compute_hash (map)
-	DviCharNameMap	*map;
-{
-	DviCharNameHash	**buckets;
-	int		c, s, i;
-	DviCharNameHash	*h;
-
-	buckets = map->buckets;
-	for (i = 0; i < DVI_HASH_SIZE; i++)
-		buckets[i] = 0;
-	for (c = 0; c < DVI_MAP_SIZE; c++)
-		for (s = 0; s < DVI_MAX_SYNONYMS; s++) {
-			if (!map->dvi_names[c][s])
-				break;
-			i = hash_name (map->dvi_names[c][s]) % DVI_HASH_SIZE;
-			h = allocHash ();
-			h->next = buckets[i];
-			buckets[i] = h;
-			h->name = map->dvi_names[c][s];
-			h->position = c;
-		}
-	
-}
-
-int
-DviCharIndex (map, name)
-	DviCharNameMap	*map;
-	char		*name;
-{
-	int		i;
-	DviCharNameHash	*h;
-
-	i = hash_name (name) % DVI_HASH_SIZE;
-	for (h = map->buckets[i]; h; h=h->next)
-		if (!strcmp (h->name, name))
-			return h->position;
-	return -1;
-}
-
-static DviCharNameMap ISO8859_1_map = {
-	"iso8859-1",
-	0,
-{
-{	0,			/* 0 */},
-{	0,			/* 1 */},
-{	0,			/* 2 */},
-{	0,			/* 3 */},
-{	0,			/* 4 */},
-{	0,			/* 5 */},
-{	0,			/* 6 */},
-{	0,			/* 7 */},
-{	0,			/* 8 */},
-{	0,			/* 9 */},
-{	0,			/* 10 */},
-{	0,			/* 11 */},
-{	0,			/* 12 */},
-{	0,			/* 13 */},
-{	0,			/* 14 */},
-{	0,			/* 15 */},
-{	0,			/* 16 */},
-{	0,			/* 17 */},
-{	0,			/* 18 */},
-{	0,			/* 19 */},
-{	0,			/* 20 */},
-{	0,			/* 21 */},
-{	0,			/* 22 */},
-{	0,			/* 23 */},
-{	0,			/* 24 */},
-{	0,			/* 25 */},
-{	0,			/* 26 */},
-{	0,			/* 27 */},
-{	0,			/* 28 */},
-{	0,			/* 29 */},
-{	0,			/* 30 */},
-{	0,			/* 31 */},
-{	0,			/* 32 */},
-{	"!",			/* 33 */},
-{	"\"", "dq",		/* 34 */},
-{	"#", "sh",		/* 35 */},
-{	"$", "Do",		/* 36 */},
-{	"%",			/* 37 */},
-{	"&",			/* 38 */},
-{	"'", "cq",		/* 39 */},
-{	"(",			/* 40 */},
-{	")",			/* 41 */},
-{	"*",			/* 42 */},
-{	"+",			/* 43 */},
-{	",",			/* 44 */},
-{	"\\-",			/* 45 */},
-{	".",			/* 46 */},
-{	"/", "sl",		/* 47 */},
-{	"0",			/* 48 */},
-{	"1",			/* 49 */},
-{	"2",			/* 50 */},
-{	"3",			/* 51 */},
-{	"4",			/* 52 */},
-{	"5",			/* 53 */},
-{	"6",			/* 54 */},
-{	"7",			/* 55 */},
-{	"8",			/* 56 */},
-{	"9",			/* 57 */},
-{	":",			/* 58 */},
-{	";",			/* 59 */},
-{	"<",			/* 60 */},
-{	"=",			/* 61 */},
-{	">",			/* 62 */},
-{	"?",			/* 63 */},
-{	"@", "at",		/* 64 */},
-{	"A",			/* 65 */},
-{	"B",			/* 66 */},
-{	"C",			/* 67 */},
-{	"D",			/* 68 */},
-{	"E",			/* 69 */},
-{	"F",			/* 70 */},
-{	"G",			/* 71 */},
-{	"H",			/* 72 */},
-{	"I",			/* 73 */},
-{	"J",			/* 74 */},
-{	"K",			/* 75 */},
-{	"L",			/* 76 */},
-{	"M",			/* 77 */},
-{	"N",			/* 78 */},
-{	"O",			/* 79 */},
-{	"P",			/* 80 */},
-{	"Q",			/* 81 */},
-{	"R",			/* 82 */},
-{	"S",			/* 83 */},
-{	"T",			/* 84 */},
-{	"U",			/* 85 */},
-{	"V",			/* 86 */},
-{	"W",			/* 87 */},
-{	"X",			/* 88 */},
-{	"Y",			/* 89 */},
-{	"Z",			/* 90 */},
-{	"[", "lB",		/* 91 */},
-{	"\\", "rs",		/* 92 */},
-{	"]", "rB",		/* 93 */},
-{	"^", "a^", "ha",	/* 94 */},
-{	"_",			/* 95 */},
-{	"`", "oq",		/* 96 */},
-{	"a",			/* 97 */},
-{	"b",			/* 98 */},
-{	"c",			/* 99 */},
-{	"d",			/* 100 */},
-{	"e",			/* 101 */},
-{	"f",			/* 102 */},
-{	"g",			/* 103 */},
-{	"h",			/* 104 */},
-{	"i",			/* 105 */},
-{	"j",			/* 106 */},
-{	"k",			/* 107 */},
-{	"l",			/* 108 */},
-{	"m",			/* 109 */},
-{	"n",			/* 110 */},
-{	"o",			/* 111 */},
-{	"p",			/* 112 */},
-{	"q",			/* 113 */},
-{	"r",			/* 114 */},
-{	"s",			/* 115 */},
-{	"t",			/* 116 */},
-{	"u",			/* 117 */},
-{	"v",			/* 118 */},
-{	"w",			/* 119 */},
-{	"x",			/* 120 */},
-{	"y",			/* 121 */},
-{	"z",			/* 122 */},
-{	"{", "lC",		/* 123 */},
-{	"|", "ba",		/* 124 */},
-{	"}", "rC",		/* 125 */},
-{	"~", "a~", "ti",	/* 126 */},
-{	0,			/* 127 */},
-{	0,			/* 128 */},
-{	0,			/* 129 */},
-{	0,			/* 130 */},
-{	0,			/* 131 */},
-{	0,			/* 132 */},
-{	0,			/* 133 */},
-{	0,			/* 134 */},
-{	0,			/* 135 */},
-{	0,			/* 136 */},
-{	0,			/* 137 */},
-{	0,			/* 138 */},
-{	0,			/* 139 */},
-{	0,			/* 140 */},
-{	0,			/* 141 */},
-{	0,			/* 142 */},
-{	0,			/* 143 */},
-{	0,			/* 144 */},
-{	0,			/* 145 */},
-{	0,			/* 146 */},
-{	0,			/* 147 */},
-{	0,			/* 148 */},
-{	0,			/* 149 */},
-{	0,			/* 150 */},
-{	0,			/* 151 */},
-{	0,			/* 152 */},
-{	0,			/* 153 */},
-{	0,			/* 154 */},
-{	0,			/* 155 */},
-{	0,			/* 156 */},
-{	0,			/* 157 */},
-{	0,			/* 158 */},
-{	0,			/* 159 */},
-{	0,			/* 160 */},
-{	"r!",			/* 161 */},
-{	"ct",			/* 162 */},
-{	"Po",			/* 163 */},
-{	"Cs",			/* 164 */},
-{	"Ye",			/* 165 */},
-{	"bb",			/* 166 */},
-{	"sc",			/* 167 */},
-{	"ad",			/* 168 */},
-{	"co",			/* 169 */},
-{	"Of",			/* 170 */},
-{	"Fo",			/* 171 */},
-{	"tno",			/* 172 */},
-{	"-", "hy",		/* 173 */},
-{	"rg",			/* 174 */},
-{	"a-",			/* 175 */},
-{	"de",			/* 176 */},
-{	"t+-",			/* 177 */},
-{	"S2",			/* 178 */},
-{	"S3",			/* 179 */},
-{	"aa",			/* 180 */},
-{	"mc",			/* 181 */},
-{	"ps",			/* 182 */},
-{	"pc",			/* 183 */},
-{	"ac",			/* 184 */},
-{	"S1",			/* 185 */},
-{	"Om",			/* 186 */},
-{	"Fc",			/* 187 */},
-{	"14",			/* 188 */},
-{	"12",			/* 189 */},
-{	"34",			/* 190 */},
-{	"r?",			/* 191 */},
-{	"`A",			/* 192 */},
-{	"'A",			/* 193 */},
-{	"^A",			/* 194 */},
-{	"~A",			/* 195 */},
-{	":A",			/* 196 */},
-{	"oA",			/* 197 */},
-{	"AE",			/* 198 */},
-{	",C",			/* 199 */},
-{	"`E",			/* 200 */},
-{	"'E",			/* 201 */},
-{	"^E",			/* 202 */},
-{	":E",			/* 203 */},
-{	"`I",			/* 204 */},
-{	"'I",			/* 205 */},
-{	"^I",			/* 206 */},
-{	":I",			/* 207 */},
-{	"-D",			/* 208 */},
-{	"~N",			/* 209 */},
-{	"`O",			/* 210 */},
-{	"'O",			/* 211 */},
-{	"^O",			/* 212 */},
-{	"~O",			/* 213 */},
-{	":O",			/* 214 */},
-{	"tmu",			/* 215 */},
-{	"/O",			/* 216 */},
-{	"`U",			/* 217 */},
-{	"'U",			/* 218 */},
-{	"^U",			/* 219 */},
-{	":U",			/* 220 */},
-{	"'Y",			/* 221 */},
-{	"TP",			/* 222 */},
-{	"ss",			/* 223 */},
-{	"`a",			/* 224 */},
-{	"'a",			/* 225 */},
-{	"^a",			/* 226 */},
-{	"~a",			/* 227 */},
-{	":a",			/* 228 */},
-{	"oa",			/* 229 */},
-{	"ae",			/* 230 */},
-{	",c",			/* 231 */},
-{	"`e",			/* 232 */},
-{	"'e",			/* 233 */},
-{	"^e",			/* 234 */},
-{	":e",			/* 235 */},
-{	"`i",			/* 236 */},
-{	"'i",			/* 237 */},
-{	"^i",			/* 238 */},
-{	":i",			/* 239 */},
-{	"Sd",			/* 240 */},
-{	"~n",			/* 241 */},
-{	"`o",			/* 242 */},
-{	"'o",			/* 243 */},
-{	"^o",			/* 244 */},
-{	"~o",			/* 245 */},
-{	":o",			/* 246 */},
-{	"tdi",			/* 247 */},
-{	"/o",			/* 248 */},
-{	"`u",			/* 249 */},
-{	"'u",			/* 250 */},
-{	"^u",			/* 251 */},
-{	":u",			/* 252 */},
-{	"'y",			/* 253 */},
-{	"Tp",			/* 254 */},
-{	":y",			/* 255 */},
-}};
-
-static DviCharNameMap Adobe_Symbol_map = {
-	"adobe-fontspecific",
-	1,
-{
-{	0,						/* 0 */},
-{	0,						/* 1 */},
-{	0,						/* 2 */},
-{	0,						/* 3 */},
-{	0,						/* 4 */},
-{	0,						/* 5 */},
-{	0,						/* 6 */},
-{	0,						/* 7 */},
-{	0,						/* 8 */},
-{	0,						/* 9 */},
-{	0,						/* 10 */},
-{	0,						/* 11 */},
-{	0,						/* 12 */},
-{	0,						/* 13 */},
-{	0,						/* 14 */},
-{	0,						/* 15 */},
-{	0,						/* 16 */},
-{	0,						/* 17 */},
-{	0,						/* 18 */},
-{	0,						/* 19 */},
-{	0,						/* 20 */},
-{	0,						/* 21 */},
-{	0,						/* 22 */},
-{	0,						/* 23 */},
-{	0,						/* 24 */},
-{	0,						/* 25 */},
-{	0,						/* 26 */},
-{	0,						/* 27 */},
-{	0,						/* 28 */},
-{	0,						/* 29 */},
-{	0,						/* 30 */},
-{	0,						/* 31 */},
-{	0,						/* 32 */},
-{	"!",						/* 33 */},
-{	"fa",						/* 34 */},
-{	"#", "sh",					/* 35 */},
-{	"te",						/* 36 */},
-{	"%",						/* 37 */},
-{	"&",						/* 38 */},
-{	"st",						/* 39 */},
-{	"(",						/* 40 */},
-{	")",						/* 41 */},
-{	"**",						/* 42 */},
-{	"+", "pl",					/* 43 */},
-{	",",						/* 44 */},
-{	"\\-", "mi",					/* 45 */},
-{	".",						/* 46 */},
-{	"/", "sl",					/* 47 */},
-{	"0",						/* 48 */},
-{	"1",						/* 49 */},
-{	"2",						/* 50 */},
-{	"3",						/* 51 */},
-{	"4",						/* 52 */},
-{	"5",						/* 53 */},
-{	"6",						/* 54 */},
-{	"7",						/* 55 */},
-{	"8",						/* 56 */},
-{	"9",						/* 57 */},
-{	":",						/* 58 */},
-{	";",						/* 59 */},
-{	"<",						/* 60 */},
-{	"=", "eq",					/* 61 */},
-{	">",						/* 62 */},
-{	"?",						/* 63 */},
-{	"=~",						/* 64 */},
-{	"*A",						/* 65 */},
-{	"*B",						/* 66 */},
-{	"*X",						/* 67 */},
-{	"*D",						/* 68 */},
-{	"*E",						/* 69 */},
-{	"*F",						/* 70 */},
-{	"*G",						/* 71 */},
-{	"*Y",						/* 72 */},
-{	"*I",						/* 73 */},
-{	"+h",						/* 74 */},
-{	"*K",						/* 75 */},
-{	"*L",						/* 76 */},
-{	"*M",						/* 77 */},
-{	"*N",						/* 78 */},
-{	"*O",						/* 79 */},
-{	"*P",						/* 80 */},
-{	"*H",						/* 81 */},
-{	"*R",						/* 82 */},
-{	"*S",						/* 83 */},
-{	"*T",						/* 84 */},
-{	0,						/* 85 */},
-{	"ts",						/* 86 */},
-{	"*W",						/* 87 */},
-{	"*C",						/* 88 */},
-{	"*Q",						/* 89 */},
-{	"*Z",						/* 90 */},
-{	"[", "lB",					/* 91 */},
-{	"tf", "3d",					/* 92 */},
-{	"]", "rB",					/* 93 */},
-{	"pp",						/* 94 */},
-{	"_",						/* 95 */},
-{	"radicalex",					/* 96 */},
-{	"*a",						/* 97 */},
-{	"*b",						/* 98 */},
-{	"*x",						/* 99 */},
-{	"*d",						/* 100 */},
-{	"*e",						/* 101 */},
-{	"*f",						/* 102 */},
-{	"*g",						/* 103 */},
-{	"*y",						/* 104 */},
-{	"*i",						/* 105 */},
-{	"+f",						/* 106 */},
-{	"*k",						/* 107 */},
-{	"*l",						/* 108 */},
-{	"*m",						/* 109 */},
-{	"*n",						/* 110 */},
-{	"*o",						/* 111 */},
-{	"*p",						/* 112 */},
-{	"*h",						/* 113 */},
-{	"*r",						/* 114 */},
-{	"*s",						/* 115 */},
-{	"*t",						/* 116 */},
-{	"*u",						/* 117 */},
-{	"+p",						/* 118 */},
-{	"*w",						/* 119 */},
-{	"*c",						/* 120 */},
-{	"*q",						/* 121 */},
-{	"*z",						/* 122 */},
-{	"lC", "{",					/* 123 */},
-{	"ba", "|",					/* 124 */},
-{	"rC", "}",					/* 125 */},
-{	"ap",						/* 126 */},
-{	0,						/* 127 */},
-{	0,						/* 128 */},
-{	0,						/* 129 */},
-{	0,						/* 130 */},
-{	0,						/* 131 */},
-{	0,						/* 132 */},
-{	0,						/* 133 */},
-{	0,						/* 134 */},
-{	0,						/* 135 */},
-{	0,						/* 136 */},
-{	0,						/* 137 */},
-{	0,						/* 138 */},
-{	0,						/* 139 */},
-{	0,						/* 140 */},
-{	0,						/* 141 */},
-{	0,						/* 142 */},
-{	0,						/* 143 */},
-{	0,						/* 144 */},
-{	0,						/* 145 */},
-{	0,						/* 146 */},
-{	0,						/* 147 */},
-{	0,						/* 148 */},
-{	0,						/* 149 */},
-{	0,						/* 150 */},
-{	0,						/* 151 */},
-{	0,						/* 152 */},
-{	0,						/* 153 */},
-{	0,						/* 154 */},
-{	0,						/* 155 */},
-{	0,						/* 156 */},
-{	0,						/* 157 */},
-{	0,						/* 158 */},
-{	0,						/* 159 */},
-{	0,						/* 160 */},
-{	"*U",						/* 161 */},
-{	"fm",						/* 162 */},
-{	"<=",						/* 163 */},
-{	"f/",						/* 164 */},
-{	"if",						/* 165 */},
-{	"Fn",						/* 166 */},
-{	"CL",						/* 167 */},
-{	"DI",						/* 168 */},
-{	"HE",						/* 169 */},
-{	"SP",						/* 170 */},
-{	"<>",						/* 171 */},
-{	"<-",						/* 172 */},
-{	"ua", "arrowverttp",				/* 173 */},
-{	"->",						/* 174 */},
-{	"da", "arrowvertbt",				/* 175 */},
-{	"de",						/* 176 */},
-{	"+-",						/* 177 */},
-{	"sd",						/* 178 */},
-{	">=",						/* 179 */},
-{	"mu",						/* 180 */},
-{	"pt",						/* 181 */},
-{	"pd",						/* 182 */},
-{	"bu",						/* 183 */},
-{	"di",						/* 184 */},
-{	"!=",						/* 185 */},
-{	"==",						/* 186 */},
-{	"~=", "~~",					/* 187 */},
-{	0,						/* 188 */},
-{	"arrowvertex",					/* 189 */},
-{	"an",						/* 190 */},
-{	"CR",						/* 191 */},
-{	"Ah",						/* 192 */},
-{	"Im",						/* 193 */},
-{	"Re",						/* 194 */},
-{	"wp",						/* 195 */},
-{	"c*",						/* 196 */},
-{	"c+",						/* 197 */},
-{	"es",						/* 198 */},
-{	"ca",						/* 199 */},
-{	"cu",						/* 200 */},
-{	"sp",						/* 201 */},
-{	"ip",						/* 202 */},
-{	"nb",						/* 203 */},
-{	"sb",						/* 204 */},
-{	"ib",						/* 205 */},
-{	"mo",						/* 206 */},
-{	"nm",						/* 207 */},
-{	"/_",						/* 208 */},
-{	"gr",						/* 209 */},
-{	"rg",						/* 210 */},
-{	"co",						/* 211 */},
-{	"tm",						/* 212 */},
-{	0,						/* 213 */},
-{	"sr", "sqrt",					/* 214 */},
-{	"md",						/* 215 */},
-{	"no",						/* 216 */},
-{	"AN",						/* 217 */},
-{	"OR",						/* 218 */},
-{	"hA",						/* 219 */},
-{	"lA",						/* 220 */},
-{	"uA",						/* 221 */},
-{	"rA",						/* 222 */},
-{	"dA",						/* 223 */},
-{	"lz",						/* 224 */},
-{	"la",						/* 225 */},
-{	0,						/* 226 */},
-{	0,						/* 227 */},
-{	0,						/* 228 */},
-{	0,						/* 229 */},
-{	"parenlefttp",					/* 230 */},
-{	"parenleftex",					/* 231 */},
-{	"parenleftbt",					/* 232 */},
-{	"bracketlefttp", "lc",				/* 233 */},
-{	"bracketleftex",				/* 234 */},
-{	"bracketleftbt", "lf",				/* 235 */},
-{	"bracelefttp", "lt",				/* 236 */},
-{	"braceleftmid", "lk",				/* 237 */},
-{	"braceleftbt", "lb",				/* 238 */},
-{	"bracerightex", "braceleftex", "braceex", "bv",	/* 239 */},
-{	0,						/* 240 */},
-{	"ra",						/* 241 */},
-{	"is", "integral",				/* 242 */},
-{	0,						/* 243 */},
-{	0,						/* 244 */},
-{	0,						/* 245 */},
-{	"parenrighttp",					/* 246 */},
-{	"parenrightex",					/* 247 */},
-{	"parenrightbt",					/* 248 */},
-{	"bracketrighttp", "rc",				/* 249 */},
-{	"bracketrightex",				/* 250 */},
-{	"bracketrightbt", "rf",				/* 251 */},
-{	"bracerighttp", "rt",				/* 252 */},
-{	"bracerightmid", "rk",				/* 253 */},
-{	"bracerightbt", "rb",				/* 254 */},
-{	0,						/* 255 */},
-}};
-
-
-static void
-load_standard_maps ()
-{
-	standard_maps_loaded = 1;
-	DviRegisterMap (&ISO8859_1_map);
-	DviRegisterMap (&Adobe_Symbol_map);
-}
diff --git a/contrib/groff/src/xditview/DviChar.h b/contrib/groff/src/xditview/DviChar.h
deleted file mode 100644
index b075240..0000000
--- a/contrib/groff/src/xditview/DviChar.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * DviChar.h
- *
- * descriptions for mapping dvi names to
- * font indexes and back.  Dvi fonts are all
- * 256 elements (actually only 256-32 are usable).
- *
- * The encoding names are taken from X -
- * case insensitive, a dash separating the
- * CharSetRegistry from the CharSetEncoding
- */
-
-# define DVI_MAX_SYNONYMS	10
-# define DVI_MAP_SIZE		256
-# define DVI_HASH_SIZE		256
-
-typedef struct _dviCharNameHash {
-	struct _dviCharNameHash	*next;
-	char			*name;
-	int			position;
-} DviCharNameHash;
-
-typedef struct _dviCharNameMap {
-    char		*encoding;
-    int			special;
-    char		*dvi_names[DVI_MAP_SIZE][DVI_MAX_SYNONYMS];
-    DviCharNameHash	*buckets[DVI_HASH_SIZE];
-} DviCharNameMap;
-
-extern DviCharNameMap	*DviFindMap ( /* char *encoding */ );
-extern void		DviRegisterMap ( /* DviCharNameMap *map */ );
-#ifdef NOTDEF
-extern char		*DviCharName ( /* DviCharNameMap *map, int index, int synonym */ );
-#else
-#define DviCharName(map,index,synonym)	((map)->dvi_names[index][synonym])
-#endif
-extern int		DviCharIndex ( /* DviCharNameMap *map, char *name */ );
diff --git a/contrib/groff/src/xditview/DviP.h b/contrib/groff/src/xditview/DviP.h
deleted file mode 100644
index 851fdfe..0000000
--- a/contrib/groff/src/xditview/DviP.h
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * $XConsortium: DviP.h,v 1.5 89/07/22 19:44:08 keith Exp $
- */
-
-/* 
- * DviP.h - Private definitions for Dvi widget
- */
-
-#ifndef _XtDviP_h
-#define _XtDviP_h
-
-#include "Dvi.h"
-#include "DviChar.h"
-#include "device.h"
-
-/***********************************************************************
- *
- * Dvi Widget Private Data
- *
- ***********************************************************************/
-
-/************************************
- *
- *  Class structure
- *
- ***********************************/
-
-/* Type for save method. */
-
-typedef void (*DviSaveProc)();
-
-/*
- * New fields for the Dvi widget class record
- */
-
-
-typedef struct _DviClass {
-      DviSaveProc	save;
-} DviClassPart;
-
-/*
- * Full class record declaration
- */
-
-typedef struct _DviClassRec {
-	CoreClassPart	core_class;
-	DviClassPart	command_class;
-} DviClassRec;
-
-extern DviClassRec dviClassRec;
-
-/***************************************
- *
- *  Instance (widget) structure 
- *
- **************************************/
-
-/*
- * a list of fonts we've used for this widget
- */
-
-typedef struct _dviFontSizeList {
-	struct _dviFontSizeList	*next;
-	int			size;
-	char			*x_name;
-	XFontStruct		*font;
-	int			doesnt_exist;
-} DviFontSizeList;
-
-typedef struct _dviFontList {
-	struct _dviFontList	*next;
-	char			*dvi_name;
-	char			*x_name;
-	int			dvi_number;
-	Boolean			initialized;
-	Boolean			scalable;
-	DviFontSizeList		*sizes;
-	DviCharNameMap		*char_map;
-	DeviceFont		*device_font;
-} DviFontList;
-
-typedef struct _dviFontMap {
-	struct _dviFontMap	*next;
-	char			*dvi_name;
-	char			*x_name;
-} DviFontMap;
-
-#define DVI_TEXT_CACHE_SIZE	256
-#define DVI_CHAR_CACHE_SIZE	1024
-
-typedef struct _dviCharCache {
-	XTextItem	cache[DVI_TEXT_CACHE_SIZE];
-	char		adjustable[DVI_TEXT_CACHE_SIZE];
-	char		char_cache[DVI_CHAR_CACHE_SIZE];
-	int		index;
-	int		max;
-	int		char_index;
-	int		font_size;
-	int		font_number;
-	XFontStruct	*font;
-	int		start_x, start_y;
-	int		x, y;
-} DviCharCache;
-
-typedef struct _dviState {
-	struct _dviState	*next;
-	int			font_size;
-	int			font_number;
-	int			x;
-	int			y;
-} DviState;
-
-typedef struct _dviFileMap {
-	struct _dviFileMap	*next;
-	long			position;
-	int			page_number;
-} DviFileMap;
-
-/*
- * New fields for the Dvi widget record
- */
-
-typedef struct {
-	/*
-	 * resource specifiable items
-	 */
-	char		*font_map_string;
-	unsigned long	foreground;
-	unsigned long	background;
-	int		requested_page;
-	int		last_page;
-	XFontStruct	*default_font;
-	FILE		*file;
-	Boolean		noPolyText;
-	Boolean		seek;		/* file is "seekable" */
-	int		default_resolution;
-	/*
- 	 * private state
- 	 */
-	FILE		*tmpFile;	/* used when reading stdin */
-	char		readingTmp;	/* reading now from tmp */
-	char		ungot;		/* have ungetc'd a char */
-	GC		normal_GC;
-	GC		fill_GC;
-	DviFileMap	*file_map;
-	DviFontList	*fonts;
-	DviFontMap	*font_map;
-	int		current_page;
-	int		font_size;
-	int		font_number;
-	DeviceFont	*device_font;
-	int		device_font_number;
-	Device		*device;
-	int		native;
-	int		device_resolution;
-	int		display_resolution;
-	int		paperlength;
-	int		paperwidth;
-	double		scale_factor;	/* display res / device res */
-	int		sizescale;
-	int		line_thickness;
-	int		line_width;
-
-#define DVI_FILL_MAX 1000
-
-	int		fill;
-#define DVI_FILL_WHITE 0
-#define DVI_FILL_GRAY 1
-#define DVI_FILL_BLACK 2
-	int		fill_type;
-	Pixmap		gray[8];
-	int		backing_store;
-	XFontStruct	*font;
-	int		display_enable;
-	struct ExposedExtents {
-	    int x1, y1, x2, y2;
-	}		extents;
-	DviState	*state;
-	DviCharCache	cache;
-	int		text_x_width;
-	int		text_device_width;
-	int		word_flag;
-} DviPart;
-
-#define DviGetIn(dw,cp)\
-    (dw->dvi.tmpFile ? (\
-	DviGetAndPut (dw, cp) \
-    ) :\
-	(*cp = getc (dw->dvi.file))\
-)
-
-#define DviGetC(dw, cp)\
-    (dw->dvi.readingTmp ? (\
-	((*cp = getc (dw->dvi.tmpFile)) == EOF) ? (\
-	    fseek (dw->dvi.tmpFile, 0l, 2),\
-	    (dw->dvi.readingTmp = 0),\
-	    DviGetIn (dw,cp)\
-	) : (\
-	    *cp\
-	)\
-    ) : (\
-	DviGetIn(dw,cp)\
-    )\
-)
-
-#define DviUngetC(dw, c)\
-    (dw->dvi.readingTmp ? (\
-	ungetc (c, dw->dvi.tmpFile)\
-    ) : ( \
-	(dw->dvi.ungot = 1),\
-	ungetc (c, dw->dvi.file)))
-
-/*
- * Full widget declaration
- */
-
-typedef struct _DviRec {
-	CorePart	core;
-	DviPart		dvi;
-} DviRec;
-
-#define InheritSaveToFile ((DviSaveProc)_XtInherit)
-
-extern XFontStruct	*QueryFont ();
-
-extern DviCharNameMap	*QueryFontMap ();
-
-extern DeviceFont	*QueryDeviceFont ();
-
-extern char *GetWord(), *GetLine();
-#endif /* _XtDviP_h */
-
-
diff --git a/contrib/groff/src/xditview/FontMap b/contrib/groff/src/xditview/FontMap
deleted file mode 100644
index 90911f0..0000000
--- a/contrib/groff/src/xditview/FontMap
+++ /dev/null
@@ -1,17 +0,0 @@
-TR	-adobe-times-medium-r-normal--*-*-*-*-p-*-iso8859-1
-TI	-adobe-times-medium-i-normal--*-*-*-*-p-*-iso8859-1
-TB	-adobe-times-bold-r-normal--*-*-*-*-p-*-iso8859-1
-TBI	-adobe-times-bold-i-normal--*-*-*-*-p-*-iso8859-1
-CR	-adobe-courier-medium-r-normal--*-*-*-*-m-*-iso8859-1
-CI	-adobe-courier-medium-o-normal--*-*-*-*-m-*-iso8859-1
-CB	-adobe-courier-bold-r-normal--*-*-*-*-m-*-iso8859-1
-CBI	-adobe-courier-bold-o-normal--*-*-*-*-m-*-iso8859-1
-HR	-adobe-helvetica-medium-r-normal--*-*-*-*-p-*-iso8859-1
-HI	-adobe-helvetica-medium-o-normal--*-*-*-*-p-*-iso8859-1
-HB	-adobe-helvetica-bold-r-normal--*-*-*-*-p-*-iso8859-1
-HBI	-adobe-helvetica-bold-o-normal--*-*-*-*-p-*-iso8859-1
-NR	-adobe-new century schoolbook-medium-r-normal--*-*-*-*-p-*-iso8859-1
-NI	-adobe-new century schoolbook-medium-i-normal--*-*-*-*-p-*-iso8859-1
-NB	-adobe-new century schoolbook-bold-r-normal--*-*-*-*-p-*-iso8859-1
-NBI	-adobe-new century schoolbook-bold-i-normal--*-*-*-*-p-*-iso8859-1
-S	-adobe-symbol-medium-r-normal--*-*-*-*-p-*-adobe-fontspecific
diff --git a/contrib/groff/src/xditview/GXditview-ad.h b/contrib/groff/src/xditview/GXditview-ad.h
deleted file mode 100644
index d9be3da..0000000
--- a/contrib/groff/src/xditview/GXditview-ad.h
+++ /dev/null
@@ -1,52 +0,0 @@
-"GXditview.height: 840",
-"GXditview.paned.allowResize:		true",
-"GXditview.paned.viewport.allowVert:	true",
-"GXditview.paned.viewport.allowHoriz:	true",
-"GXditview.paned.viewport.skipAdjust:	false",
-"GXditview.paned.viewport.width:		600",
-"GXditview.paned.viewport.height:	800",
-"GXditview.paned.viewport.showGrip:	false",
-"GXditview.paned.label.skipAdjust:	true",
-"GXditview.paned.viewport.dvi.translations: #augment \
-	<Btn1Down>:	XawPositionSimpleMenu(menu) MenuPopup(menu)\\n\
-	<Key>Next:	NextPage()\\n\
-	<Key>n:		NextPage()\\n\
-	<Key>space:	NextPage()\\n\
-	<Key>Return:	NextPage()\\n\
-	<Key>Prior:	PreviousPage()\\n\
-	<Key>p:		PreviousPage()\\n\
-	<Key>BackSpace:	PreviousPage()\\n\
-	<Key>Delete:	PreviousPage()\\n\
-	<Key>Select:	SelectPage()\\n\
-	<Key>Find:	OpenFile()\\n\
-	<Key>r:		Rerasterize()\\n\
-	<Key>q:		Quit()",
-"GXditview.paned.label.translations: #augment \
-	<Btn1Down>:	XawPositionSimpleMenu(menu) MenuPopup(menu)\\n\
-	<Key>Next:	NextPage()\\n\
-	<Key>n:		NextPage()\\n\
-	<Key>space:	NextPage()\\n\
-	<Key>Return:	NextPage()\\n\
-	<Key>Prior:	PreviousPage()\\n\
-	<Key>p:		PreviousPage()\\n\
-	<Key>BackSpace:	PreviousPage()\\n\
-	<Key>Delete:	PreviousPage()\\n\
-	<Key>Select:	SelectPage()\\n\
-	<Key>Find:	OpenFile()\\n\
-	<Key>r:		Rerasterize()\\n\
-	<Key>q:		Quit()",
-"GXditview.menu.nextPage.label:		Next Page",
-"GXditview.menu.previousPage.label:	Previous Page",
-"GXditview.menu.selectPage.label:	Select Page",
-"GXditview.menu.print.label:		Print",
-"GXditview.menu.openFile.label:		Open",
-"GXditview.menu.quit.label:		Quit",
-"GXditview.promptShell.allowShellResize:	true",
-"GXditview.promptShell.promptDialog.value.translations: #override \
-	<Key>Return:	Accept()",
-"GXditview.promptShell.promptDialog.accept.label: Accept",
-"GXditview.promptShell.promptDialog.accept.translations: #override \
-	<BtnUp>:	Accept() unset()",
-"GXditview.promptShell.promptDialog.cancel.label: Cancel",
-"GXditview.promptShell.promptDialog.cancel.translations: #override \
-	<BtnUp>:	Cancel() unset()",
diff --git a/contrib/groff/src/xditview/GXditview.ad b/contrib/groff/src/xditview/GXditview.ad
deleted file mode 100644
index e99ff5e..0000000
--- a/contrib/groff/src/xditview/GXditview.ad
+++ /dev/null
@@ -1,57 +0,0 @@
-GXditview.height: 840
-
-GXditview.paned.allowResize:		true
-GXditview.paned.viewport.allowVert:	true
-GXditview.paned.viewport.allowHoriz:	true
-GXditview.paned.viewport.skipAdjust:	false
-GXditview.paned.viewport.width:		600
-GXditview.paned.viewport.height:	800
-GXditview.paned.viewport.showGrip:	false
-GXditview.paned.label.skipAdjust:	true
-
-GXditview.paned.viewport.dvi.translations: #augment \
-	<Btn1Down>:	XawPositionSimpleMenu(menu) MenuPopup(menu)\n\
-	<Key>Next:	NextPage()\n\
-	<Key>n:		NextPage()\n\
-	<Key>space:	NextPage()\n\
-	<Key>Return:	NextPage()\n\
-	<Key>Prior:	PreviousPage()\n\
-	<Key>p:		PreviousPage()\n\
-	<Key>BackSpace:	PreviousPage()\n\
-	<Key>Delete:	PreviousPage()\n\
-	<Key>Select:	SelectPage()\n\
-	<Key>Find:	OpenFile()\n\
-	<Key>r:		Rerasterize()\n\
-	<Key>q:		Quit()
-GXditview.paned.label.translations: #augment \
-	<Btn1Down>:	XawPositionSimpleMenu(menu) MenuPopup(menu)\n\
-	<Key>Next:	NextPage()\n\
-	<Key>n:		NextPage()\n\
-	<Key>space:	NextPage()\n\
-	<Key>Return:	NextPage()\n\
-	<Key>Prior:	PreviousPage()\n\
-	<Key>p:		PreviousPage()\n\
-	<Key>BackSpace:	PreviousPage()\n\
-	<Key>Delete:	PreviousPage()\n\
-	<Key>Select:	SelectPage()\n\
-	<Key>Find:	OpenFile()\n\
-	<Key>r:		Rerasterize()\n\
-	<Key>q:		Quit()
-GXditview.menu.nextPage.label:		Next Page
-GXditview.menu.previousPage.label:	Previous Page
-GXditview.menu.selectPage.label:	Select Page
-GXditview.menu.print.label:		Print
-GXditview.menu.openFile.label:		Open
-GXditview.menu.quit.label:		Quit
-
-GXditview.promptShell.allowShellResize:	true
-GXditview.promptShell.promptDialog.value.translations: #override \
-	<Key>Return:	Accept()
-
-GXditview.promptShell.promptDialog.accept.label: Accept
-GXditview.promptShell.promptDialog.accept.translations: #override \
-	<BtnUp>:	Accept() unset()
-
-GXditview.promptShell.promptDialog.cancel.label: Cancel
-GXditview.promptShell.promptDialog.cancel.translations: #override \
-	<BtnUp>:	Cancel() unset()
diff --git a/contrib/groff/src/xditview/INSTALL b/contrib/groff/src/xditview/INSTALL
deleted file mode 100644
index 144118f..0000000
--- a/contrib/groff/src/xditview/INSTALL
+++ /dev/null
@@ -1,20 +0,0 @@
-This version of gxditview uses imake.
-
-Here are the steps needed to install gxditview:
-
-- edit the Imakefile if necessary
-
-- xmkmf
-
-- make depend
-
-- make
-
-- make install
-
-- make install.man (installs the man page)
-
-The gxditview binary will be installed in the usual place for X
-binaries (eg /usr/bin/X11).  Previous versions of gxditview were
-installed along with the other groff binaries (eg in /usr/local/bin);
-you will need to remove these by hand.
diff --git a/contrib/groff/src/xditview/Imakefile.in b/contrib/groff/src/xditview/Imakefile.in
deleted file mode 100644
index 1f64fe0..0000000
--- a/contrib/groff/src/xditview/Imakefile.in
+++ /dev/null
@@ -1,120 +0,0 @@
-srcdir=@srcdir@
-top_srcdir=@top_srcdir@
-VPATH=@srcdir@
-top_builddir=@groff_top_builddir@
-SEP=@PATH_SEPARATOR@
-
-version=`cat $(top_srcdir)/VERSION`
-# No additional number if revision is zero
-revision=`sed -e 's/^0$$//' -e 's/^[1-9].*$$/.&/' $(top_srcdir)/REVISION`
-
-GROFF_PREFIX = @prefix@
-GROFF_DATADIR = $(GROFF_PREFIX)/share
-GROFF_DATAPROGRAMDIR = $(GROFF_DATADIR)/groff
-GROFF_DATASUBDIR = $(GROFF_DATAPROGRAMDIR)/$(version)$(revision)
-GROFF_FONTDIR = $(GROFF_DATASUBDIR)/font
-GROFF_LOCALFONTDIR = $(GROFF_DATAPROGRAMDIR)/site-font
-GROFF_FONTPATH = $(GROFF_FONTDIR)$(SEP)$(GROFF_LOCALFONTDIR)$(SEP)/usr/lib/font
-DPIS = 75 100
-
-PROGRAMS = \
-  gxditview \
-  xtotroff
-DEPLIBS = XawClientDepLibs
-#if defined(HPArchitecture) && (OSMajorVersion > 9)
-LOCAL_LIBRARIES = -L/usr/contrib/X11R6/lib XawClientLibs
-#else
-LOCAL_LIBRARIES = XawClientLibs
-#endif
-SRCS1 = \
-  $(srcdir)/xditview.c \
-  $(srcdir)/Dvi.c \
-  $(srcdir)/draw.c \
-  $(srcdir)/font.c \
-  $(srcdir)/lex.c \
-  $(srcdir)/page.c \
-  $(srcdir)/parse.c \
-  $(srcdir)/XFontName.c \
-  $(srcdir)/DviChar.c \
-  $(srcdir)/device.c
-OBJS1 = \
-  xditview.o \
-  Dvi.o \
-  draw.o \
-  font.o \
-  lex.o \
-  page.o \
-  parse.o \
-  XFontName.o \
-  DviChar.o \
-  device.o
-SRCS2 = \
-  $(srcdir)/xtotroff.c \
-  $(srcdir)/XFontName.c \
-  $(srcdir)/DviChar.c
-OBJS2 = \
-  xtotroff.o \
-  XFontName.o \
-  DviChar.o
-#if defined(HPArchitecture) && (OSMajorVersion > 9)
-INCLUDES = \
-  -I/usr/contrib/X11R6/include \
-  -I$(TOOLKITSRC) \
-  -I$(TOP)
-#else
-INCLUDES = \
-  -I$(TOOLKITSRC) \
-  -I$(TOP)
-#endif
-MATHLIB = -lm
-DEFINES = \
-  $(SIGNAL_DEFINES) \
-  -DFONTPATH=\"$(GROFF_FONTPATH)\" # -DX_NOT_STDC_ENV
-
-DEVDIR = $(top_builddir)/font
-MKINSTALLDIRS = $(top_srcdir)/mkinstalldirs
-
-#undef ProgramTargetHelper
-#define ProgramTargetHelper ProgramTargetHelperNoMan
-ComplexProgramTarget_1(gxditview,$(LOCAL_LIBRARIES),$(MATHLIB))
-InstallManPageLong($(srcdir)/gxditview,$(MANDIR),gxditview)
-NormalProgramTarget(xtotroff,$(OBJS2),$(DEPXLIB),$(XLIB), /**/)
-
-InstallAppDefaultsLong($(srcdir)/GXditview,GXditview)
-
-fonts: xtotroff $(srcdir)/DESC $(srcdir)/FontMap
-	@dir=`pwd`; \
-	fonts=`sed -e 's/[	 ].*//' $(srcdir)/FontMap`; \
-	for dpi in $(DPIS); do \
-	  echo Making devX$$dpi; \
-	  test -d $(DEVDIR)/devX$$dpi || \
-	    $(MKINSTALLDIRS) $(DEVDIR)/devX$$dpi; \
-	  rm -f $(DEVDIR)/devX$$dpi/DESC; \
-	  sed -e "s/res 75/res $$dpi/" $(srcdir)/DESC \
-	    >$(DEVDIR)/devX$$dpi/DESC; \
-	  (cd $(DEVDIR)/devX$$dpi; \
-	  rm -f Makefile.sub; \
-	  echo DEV=X$$dpi >Makefile.sub; \
-	  echo DEVFILES=DESC $$fonts >>Makefile.sub; \
-	  $$dir/xtotroff -g -r $$dpi -s 10 $(srcdir)/FontMap); \
-	  echo Making devX$$dpi-12; \
-	  test -d $(DEVDIR)/devX$$dpi-12 || \
-	    $(MKINSTALLDIRS) $(DEVDIR)/devX$$dpi-12; \
-	  rm -f $(DEVDIR)/devX$$dpi-12/DESC; \
-	  sed -e "s/res 75/res $$dpi/" \
-	      -e 's/unitwidth 10/unitwidth 12/' $(srcdir)/DESC \
-	    >$(DEVDIR)/devX$$dpi-12/DESC; \
-	  (cd $(DEVDIR)/devX$$dpi-12; \
-	  rm -f Makefile.sub; \
-	  echo DEV=X$$dpi-12 >Makefile.sub; \
-	  echo DEVFILES=DESC $$fonts >>Makefile.sub; \
-	  $$dir/xtotroff -g -r $$dpi -s 12 $(srcdir)/FontMap); \
-	done
-
-GXditview-ad.h: $(srcdir)/GXditview.ad
-	/bin/sh $(srcdir)/ad2c $(srcdir)/GXditview.ad >GXditview-ad.h
-
-extraclean: clean
-	-rm -f junk tmp grot old Makefile Imakefile $(srcdir)/gxditview._man
-
-FORCE:
diff --git a/contrib/groff/src/xditview/Menu.h b/contrib/groff/src/xditview/Menu.h
deleted file mode 100644
index c306b27..0000000
--- a/contrib/groff/src/xditview/Menu.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * $XConsortium: Menu.h,v 1.2 89/07/21 14:22:10 jim Exp $
- */
-
-#ifndef _XtMenu_h
-#define _XtMenu_h
-
-/***********************************************************************
- *
- * Menu Widget
- *
- ***********************************************************************/
-
-/* Parameters:
-
- Name		     Class		RepType		Default Value
- ----		     -----		-------		-------------
- background	     Background		pixel		White
- border		     BorderColor	pixel		Black
- borderWidth	     BorderWidth	int		1
- height		     Height		int		120
- mappedWhenManaged   MappedWhenManaged	Boolean		True
- reverseVideo	     ReverseVideo	Boolean		False
- width		     Width		int		120
- x		     Position		int		0
- y		     Position		int		0
-
-*/
-
-#define XtNmenuEntries		"menuEntries"
-#define XtNhorizontalPadding	"horizontalPadding"
-#define XtNverticalPadding	"verticalPadding"
-#define XtNselection		"Selection"
-
-#define XtCMenuEntries		"MenuEntries"
-#define XtCPadding		"Padding"
-#define XtCSelection		"Selection"
-
-typedef struct _MenuRec *MenuWidget;  /* completely defined in MenuPrivate.h */
-typedef struct _MenuClassRec *MenuWidgetClass;    /* completely defined in MenuPrivate.h */
-
-extern WidgetClass menuWidgetClass;
-
-extern Widget	XawMenuCreate ();
-#endif /* _XtMenu_h */
-/* DON'T ADD STUFF AFTER THIS #endif */
diff --git a/contrib/groff/src/xditview/README b/contrib/groff/src/xditview/README
deleted file mode 100644
index b18f64a..0000000
--- a/contrib/groff/src/xditview/README
+++ /dev/null
@@ -1,14 +0,0 @@
-This is gxditview, a X11 previewer for groff based on MIT's xditview.
-This version can be used with the output of gtroff -Tps as well as
-with -TX75 and -TX100.  You will need X11R5 or newer to install it (it
-might work on X11R4, but I haven't tested it.)
-
-See the file INSTALL in this directory for installation instructions.
-
-xditview is copyrighted by MIT under the usual X terms (see
-gxditview.man); my changes to it are in the public domain.
-
-Please report bugs to bug-groff@gnu.org.
-
-James Clark
-jjc@jclark.com
diff --git a/contrib/groff/src/xditview/TODO b/contrib/groff/src/xditview/TODO
deleted file mode 100644
index 161a7cf..0000000
--- a/contrib/groff/src/xditview/TODO
+++ /dev/null
@@ -1,17 +0,0 @@
-Replace Imakefile with a configure script.
-
-Better error handling.
-
-Resource and command-line option to specify font path.
-
-Resource to specify name of environment variable from which to get the
-font path.
-
-Have character substitutions (currently done in draw.c:FakeCharacter)
-specified in a resource (similar format to FontMap).
-
-The initial width of the dialog box should expand to accommodate the
-default value.
-
-Option in Print dialog to specify that only the current page should be
-printed.
diff --git a/contrib/groff/src/xditview/XFontName.c b/contrib/groff/src/xditview/XFontName.c
deleted file mode 100644
index 5ca9bb8..0000000
--- a/contrib/groff/src/xditview/XFontName.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- * XFontName.c
- *
- * build/parse X Font name strings
- */
-
-#include <X11/Xlib.h>
-#include <X11/Xos.h>
-#include "XFontName.h"
-#include <ctype.h>
-
-static char *
-extractStringField (name, buffer, size, attrp, bit)
-	char		*name;
-	char		*buffer;
-	int		size;
-	unsigned int	*attrp;
-	unsigned int	bit;
-{
-	char	*buf = buffer;
-
-	if (!*name)
-		return 0;
-	while (*name && *name != '-' && size > 0) {
-		*buf++ = *name++;
-		--size;
-	}
-	if (size <= 0)
-		return 0;
-	*buf = '\0';
-	if (buffer[0] != '*' || buffer[1] != '\0')
-		*attrp |= bit;
-	if (*name == '-')
-		return name+1;
-	return name;
-}
-
-static char *
-extractUnsignedField (name, result, attrp, bit)
-	char		*name;
-	unsigned int	*result;
-	unsigned int	*attrp;
-	unsigned int	bit;
-{
-	char		buf[256];
-	char		*c;
-	unsigned int	i;
-
-	name = extractStringField (name, buf, sizeof (buf), attrp, bit);
-	if (!name)
-		return 0;
-	if (!(*attrp & bit))
-		return name;
-	i = 0;
-	for (c = buf; *c; c++) {
-		if (!isdigit (*c))
-			return 0;
-		i = i * 10 + (*c - '0');
-	}
-	*result = i;
-	return name;
-}
-
-Bool
-XParseFontName (fontNameString, fontName, fontNameAttributes)
-	XFontNameString	fontNameString;
-	XFontName	*fontName;
-	unsigned int	*fontNameAttributes;
-{
-	char		*name = fontNameString;
-	XFontName	temp;
-	unsigned int	attributes = 0;
-
-#define GetString(field,bit)\
-	if (!(name = extractStringField \
-		(name, temp.field, sizeof (temp.field),\
-		&attributes, bit))) \
-		return False;
-
-#define GetUnsigned(field,bit)\
-	if (!(name = extractUnsignedField \
-		(name, &temp.field, \
-		&attributes, bit))) \
-		return False;
-
-	GetString (Registry, FontNameRegistry)
-	GetString (Foundry, FontNameFoundry)
-	GetString (FamilyName, FontNameFamilyName)
-	GetString (WeightName, FontNameWeightName)
-	GetString (Slant, FontNameSlant)
-	GetString (SetwidthName, FontNameSetwidthName)
-	GetString (AddStyleName, FontNameAddStyleName)
-	GetUnsigned (PixelSize, FontNamePixelSize)
-	GetUnsigned (PointSize, FontNamePointSize)
-	GetUnsigned (ResolutionX, FontNameResolutionX)
-	GetUnsigned (ResolutionY, FontNameResolutionY)
-	GetString (Spacing, FontNameSpacing)
-	GetUnsigned (AverageWidth, FontNameAverageWidth)
-	GetString (CharSetRegistry, FontNameCharSetRegistry)
-	if (!*name) {
-		temp.CharSetEncoding[0] = '\0';
-		attributes |= FontNameCharSetEncoding;
-	} else {
-		GetString (CharSetEncoding, FontNameCharSetEncoding)
-	}
-	*fontName = temp;
-	*fontNameAttributes = attributes;
-	return True;
-}
-
-static char *
-utoa (u, s, size)
-	unsigned int	u;
-	char		*s;
-	int		size;
-{
-	char	*t;
-
-	t = s + size;
-	*--t = '\0';
-	do
-		*--t = (u % 10) + '0';
-	while (u /= 10);
-	return t;
-}
-
-Bool
-XFormatFontName (fontName, fontNameAttributes, fontNameString)
-	XFontName	*fontName;
-	unsigned int	fontNameAttributes;
-	XFontNameString	fontNameString;
-{
-	XFontNameString	tmp;
-	char		*name = tmp, *f;
-	int		left = sizeof (tmp) - 1;
-	char		number[32];
-
-#define PutString(field, bit)\
-	f = (fontNameAttributes & bit) ? \
-		fontName->field \
-		: "*"; \
-	if ((left -= strlen (f)) < 0) \
-		return False; \
-	while (*f) \
-		if ((*name++ = *f++) == '-') \
-			return False; 
-#define PutHyphen()\
-	if (--left < 0) \
-		return False; \
-	*name++ = '-';
-
-#define PutUnsigned(field, bit) \
-	f = (fontNameAttributes & bit) ? \
-		utoa (fontName->field, number, sizeof (number)) \
-		: "*"; \
-	if ((left -= strlen (f)) < 0) \
-		return False; \
-	while (*f) \
-		*name++ = *f++;
-
-	PutString (Registry, FontNameRegistry)
-	PutHyphen ();
-	PutString (Foundry, FontNameFoundry)
-	PutHyphen ();
-	PutString (FamilyName, FontNameFamilyName)
-	PutHyphen ();
-	PutString (WeightName, FontNameWeightName)
-	PutHyphen ();
-	PutString (Slant, FontNameSlant)
-	PutHyphen ();
-	PutString (SetwidthName, FontNameSetwidthName)
-	PutHyphen ();
-	PutString (AddStyleName, FontNameAddStyleName)
-	PutHyphen ();
-	PutUnsigned (PixelSize, FontNamePixelSize)
-	PutHyphen ();
-	PutUnsigned (PointSize, FontNamePointSize)
-	PutHyphen ();
-	PutUnsigned (ResolutionX, FontNameResolutionX)
-	PutHyphen ();
-	PutUnsigned (ResolutionY, FontNameResolutionY)
-	PutHyphen ();
-	PutString (Spacing, FontNameSpacing)
-	PutHyphen ();
-	PutUnsigned (AverageWidth, FontNameAverageWidth)
-	PutHyphen ();
-	PutString (CharSetRegistry, FontNameCharSetRegistry)
-	PutHyphen ();
-	PutString (CharSetEncoding, FontNameCharSetEncoding)
-	*name = '\0';
-	strcpy (fontNameString, tmp);
-	return True;
-}
-
-Bool
-XCompareFontName (name1, name2, fontNameAttributes)
-	XFontName	*name1, *name2;
-	unsigned int	fontNameAttributes;
-{
-#define CompareString(field,bit) \
-	if (fontNameAttributes & bit) \
-		if (strcmp (name1->field, name2->field)) \
-			return False;
-
-#define CompareUnsigned(field,bit) \
-	if (fontNameAttributes & bit) \
-		if (name1->field != name2->field) \
-			return False;
-
-	CompareString (Registry, FontNameRegistry)
-	CompareString (Foundry, FontNameFoundry)
-	CompareString (FamilyName, FontNameFamilyName)
-	CompareString (WeightName, FontNameWeightName)
-	CompareString (Slant, FontNameSlant)
-	CompareString (SetwidthName, FontNameSetwidthName)
-	CompareString (AddStyleName, FontNameAddStyleName)
-	CompareUnsigned (PixelSize, FontNamePixelSize)
-	CompareUnsigned (PointSize, FontNamePointSize)
-	CompareUnsigned (ResolutionX, FontNameResolutionX)
-	CompareUnsigned (ResolutionY, FontNameResolutionY)
-	CompareString (Spacing, FontNameSpacing)
-	CompareUnsigned (AverageWidth, FontNameAverageWidth)
-	CompareString (CharSetRegistry, FontNameCharSetRegistry)
-	CompareString (CharSetEncoding, FontNameCharSetEncoding)
-	return True;
-}
-
-XCopyFontName (name1, name2, fontNameAttributes)
-	XFontName	*name1, *name2;
-	unsigned int	fontNameAttributes;
-{
-#define CopyString(field,bit) \
-	if (fontNameAttributes & bit) \
-		strcpy (name2->field, name1->field);
-
-#define CopyUnsigned(field,bit) \
-	if (fontNameAttributes & bit) \
-		name2->field = name1->field;
-
-	CopyString (Registry, FontNameRegistry)
-	CopyString (Foundry, FontNameFoundry)
-	CopyString (FamilyName, FontNameFamilyName)
-	CopyString (WeightName, FontNameWeightName)
-	CopyString (Slant, FontNameSlant)
-	CopyString (SetwidthName, FontNameSetwidthName)
-	CopyString (AddStyleName, FontNameAddStyleName)
-	CopyUnsigned (PixelSize, FontNamePixelSize)
-	CopyUnsigned (PointSize, FontNamePointSize)
-	CopyUnsigned (ResolutionX, FontNameResolutionX)
-	CopyUnsigned (ResolutionY, FontNameResolutionY)
-	CopyString (Spacing, FontNameSpacing)
-	CopyUnsigned (AverageWidth, FontNameAverageWidth)
-	CopyString (CharSetRegistry, FontNameCharSetRegistry)
-	CopyString (CharSetEncoding, FontNameCharSetEncoding)
-	return True;
-}
diff --git a/contrib/groff/src/xditview/XFontName.h b/contrib/groff/src/xditview/XFontName.h
deleted file mode 100644
index efe9eb1..0000000
--- a/contrib/groff/src/xditview/XFontName.h
+++ /dev/null
@@ -1,45 +0,0 @@
-typedef struct _xFontName {
-	char		Registry[256];
-	char		Foundry[256];
-	char		FamilyName[256];
-	char		WeightName[256];
-	char		Slant[3];
-	char		SetwidthName[256];
-	char		AddStyleName[256];
-	unsigned int	PixelSize;
-	unsigned int	PointSize;
-	unsigned int	ResolutionX;
-	unsigned int	ResolutionY;
-	char		Spacing[2];
-	unsigned int	AverageWidth;
-	char		CharSetRegistry[256];
-	char		CharSetEncoding[256];
-} XFontName;
-
-#define FontNameRegistry	(1<<0)
-#define FontNameFoundry		(1<<1)
-#define FontNameFamilyName	(1<<2)
-#define FontNameWeightName	(1<<3)
-#define FontNameSlant		(1<<4)
-#define FontNameSetwidthName	(1<<5)
-#define FontNameAddStyleName	(1<<6)
-#define FontNamePixelSize	(1<<7)
-#define FontNamePointSize	(1<<8)
-#define FontNameResolutionX	(1<<9)
-#define FontNameResolutionY	(1<<10)
-#define FontNameSpacing		(1<<11)
-#define FontNameAverageWidth	(1<<12)
-#define FontNameCharSetRegistry	(1<<13)
-#define FontNameCharSetEncoding	(1<<14)
-
-#define SlantRoman		"R"
-#define SlantItalic		"I"
-#define SlantOblique		"O"
-#define SlantReverseItalic	"RI"
-#define SlantReverseOblique	"RO"
-
-#define SpacingMonoSpaced	"M"
-#define SpacingProportional	"P"
-#define SpacingCharacterCell	"C"
-
-typedef char	XFontNameString[256];
diff --git a/contrib/groff/src/xditview/ad2c b/contrib/groff/src/xditview/ad2c
deleted file mode 100644
index 651ab8c..0000000
--- a/contrib/groff/src/xditview/ad2c
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/bin/sh
-#
-#	ad2c : Convert app-defaults file to C strings decls.
-#
-#	George Ferguson, ferguson@cs.rcohester.edu, 12 Nov 1990.
-#	19 Mar 1991: gf
-#		Made it self-contained.
-#	6 Jan 1992: mycroft@gnu.ai.mit.edu (Charles Hannum)
-#		Removed use of "-n" and ":read" label since Gnu and
-#		IBM sed print pattern space on "n" command. Still works
-#		with Sun sed, of course.
-#	7 Jan 1992: matthew@sunpix.East.Sun.COM (Matthew Stier)
-#		Escape quotes after escaping backslashes.
-#	8 Jul 1992: Version 1.6
-#		Manpage fixes.
-#	19 Apr 1993: Version 1.7
-#		Remove comments that were inside the sed command since
-#		some versions of sed don't like them. The comments are
-#		now given here in the header.
-#
-# Comments on the script by line:
-# /^!/d		Remove comments
-# /^$/d		Remove blanks
-# s/\\/\\\\/g	Escape backslashes...
-# s/\\$//g	...except the line continuation ones
-# s/"/\\"/g	Escape quotes
-# s/^/"/	Add leading quote
-# : test	Establish label for later branch
-# /\\$/b slash	Branch to label "slash" if line ends in backslash
-# s/$/",/	Otherwise add closing quote and comma...
-# p		...output the line...
-# d		...and clear the pattern space so it's not printed again
-# : slash	Branch comes here if line ends in backslash
-# n		Read next line, append to pattern space
-# [...]		The "d" and "s" commands that follow just delete
-#		comments and blank lines and escape control sequences
-# b test	Branch up to see if the line ends in backslash or not
-#
-
-sed '
-/^!/d
-/^$/d
-s/\\/\\\\/g
-s/\\$//g
-s/"/\\"/g
-s/^/"/
-: test
-/\\$/b slash
-s/$/",/
-p
-d
-: slash
-n
-/^!/d
-/^$/d
-s/"/\\"/g
-s/\\\\/\\/g
-s/\\n/\\\\n/g
-s/\\t/\\\\t/g
-s/\\f/\\\\f/g
-s/\\b/\\\\b/g
-b test' "$@"
diff --git a/contrib/groff/src/xditview/device.c b/contrib/groff/src/xditview/device.c
deleted file mode 100644
index 264f681..0000000
--- a/contrib/groff/src/xditview/device.c
+++ /dev/null
@@ -1,600 +0,0 @@
-/* device.c */
-
-#include <stdio.h>
-#include <ctype.h>
-
-#include <X11/Xos.h>
-#include <X11/Intrinsic.h>
-
-#include "device.h"
-
-#ifndef FONTPATH
-#define FONTPATH "/usr/local/share/groff/font:/usr/local/lib/font:/usr/lib/font"
-#endif
-
-#ifndef isascii
-#define isascii(c) (1)
-#endif
-
-extern void exit();
-#ifndef strtok
-extern char *strtok();
-#endif
-#ifndef strchr
-extern char *strchr();
-#endif
-#ifndef getenv
-extern char *getenv();
-#endif
-
-/* Name of environment variable containing path to be used for
-searching for device and font description files. */
-#define FONTPATH_ENV_VAR  "GROFF_FONT_PATH"
-
-#define WS " \t\r\n"
-
-#ifndef INT_MIN
-/* Minimum and maximum values a `signed int' can hold.  */
-#define INT_MIN (-INT_MAX-1)
-#define INT_MAX 2147483647
-#endif
-
-#define CHAR_TABLE_SIZE 307
-
-struct _DeviceFont {
-    char *name;
-    int special;
-    DeviceFont *next;
-    Device *dev;
-    struct charinfo *char_table[CHAR_TABLE_SIZE];
-    struct charinfo *code_table[256];
-};
-
-struct charinfo {
-    int width;
-    int code;
-    struct charinfo *next;
-    struct charinfo *code_next;
-    char name[1];
-};
-
-static char *current_filename = 0;
-static int current_lineno = -1;
-
-static void error();
-static FILE *open_device_file();
-static DeviceFont *load_font();
-static Device *new_device();
-static DeviceFont *new_font();
-static void delete_font();
-static unsigned hash_name();
-static struct charinfo *add_char();
-static int read_charset_section();
-static char *canonicalize_name();
-
-static
-Device *new_device(name)
-    char *name;
-{
-    Device *dev;
-
-    dev = XtNew(Device);
-    dev->sizescale = 1;
-    dev->res = 0;
-    dev->unitwidth = 0;
-    dev->fonts = 0;
-    dev->X11 = 0;
-    dev->paperlength = 0;
-    dev->paperwidth = 0;
-    dev->name = XtNewString(name);
-    return dev;
-}
-
-void device_destroy(dev)
-    Device *dev;
-{
-    DeviceFont *f;
-    
-    if (!dev)
-	return;
-    f = dev->fonts;
-    while (f) {
-	DeviceFont *tem = f;
-	f = f->next;
-	delete_font(tem);
-    }
-    
-    XtFree(dev->name);
-    XtFree((char *)dev);
-}
-
-Device *device_load(name)
-    char *name;
-{
-    Device *dev;
-    FILE *fp;
-    int err = 0;
-    char buf[256];
-
-    fp = open_device_file(name, "DESC", &current_filename);
-    if (!fp)
-	return 0;
-    dev = new_device(name);
-    current_lineno = 0;
-    while (fgets(buf, sizeof(buf), fp)) {
-	char *p;
-	current_lineno++;
-	p = strtok(buf, WS);
-	if (p) {
-	    int *np = 0;
-	    char *q;
-
-	    if (strcmp(p, "charset") == 0)
-		break;
-	    if (strcmp(p, "X11") == 0)
-		dev->X11 = 1;
-	    else if (strcmp(p, "sizescale") == 0)
-		np = &dev->sizescale;
- 	    else if (strcmp(p, "res") == 0)
-		np = &dev->res;
- 	    else if (strcmp(p, "unitwidth") == 0)
-		np = &dev->unitwidth;
- 	    else if (strcmp(p, "paperwidth") == 0)
-		np = &dev->paperwidth;
- 	    else if (strcmp(p, "paperlength") == 0)
-		np = &dev->paperlength;
-	    
-	    if (np) {
-		q = strtok((char *)0, WS);
-		if (!q || sscanf(q, "%d", np) != 1 || *np <= 0) {
-		    error("bad argument");
-		    err = 1;
-		    break;
-		}
-	    }	
-	}
-    }
-    fclose(fp);
-    current_lineno = -1;
-    if (!err) {
-	if (dev->res == 0) {
-	    error("missing res line");
-	    err = 1;
-	}
-	else if (dev->unitwidth == 0) {
-	    error("missing unitwidth line");
-	    err = 1;
-	}
-    }
-    if (dev->paperlength == 0)
-	dev->paperlength = dev->res*11;
-    if (dev->paperwidth == 0)
-	dev->paperwidth = dev->res*8 + dev->res/2;
-    if (err) {
-	device_destroy(dev);
-	dev = 0;
-    }
-    XtFree(current_filename);
-    current_filename = 0;
-    return dev;
-}
-
-
-DeviceFont *device_find_font(dev, name)
-    Device *dev;
-    char *name;
-{
-    DeviceFont *f;
-
-    if (!dev)
-	return 0;
-    for (f = dev->fonts; f; f = f->next)
-	if (strcmp(f->name, name) == 0)
-	    return f;
-    return load_font(dev, name);
-}
-
-static
-DeviceFont *load_font(dev, name)
-    Device *dev;
-    char *name;
-{
-    FILE *fp;
-    char buf[256];
-    DeviceFont *f;
-    int special = 0;
-
-    fp = open_device_file(dev->name, name, &current_filename);
-    if (!fp)
-	return 0;
-    current_lineno = 0;
-    for (;;) {
-	char *p;
-
-	if (!fgets(buf, sizeof(buf), fp)) {
-	    error("no charset line");
-	    return 0;
-	}
-	current_lineno++;
-	p = strtok(buf, WS);
-	/* charset must be on a line by itself */
-	if (p && strcmp(p, "charset") == 0 && strtok((char *)0, WS) == 0)
-	    break;
-	if (p && strcmp(p, "special") == 0)
-	    special = 1;
-    }
-    f = new_font(name, dev);
-    f->special = special;
-    if (!read_charset_section(f, fp)) {
-	delete_font(f);
-	f = 0;
-    }
-    else {
-	f->next = dev->fonts;
-	dev->fonts = f;
-    }
-    fclose(fp);
-    XtFree(current_filename);
-    current_filename = 0;
-    return f;
-}
-
-static
-DeviceFont *new_font(name, dev)
-    char *name;
-    Device *dev;
-{
-    int i;
-    DeviceFont *f;
-
-    f = XtNew(DeviceFont);
-    f->name = XtNewString(name);
-    f->dev = dev;
-    f->special = 0;
-    f->next = 0;
-    for (i = 0; i < CHAR_TABLE_SIZE; i++)
-	f->char_table[i] = 0;
-    for (i = 0; i < 256; i++)
-	f->code_table[i] = 0;
-    return f;
-}
-
-static
-void delete_font(f)
-    DeviceFont *f;
-{
-    int i;
-
-    if (!f)
-	return;
-    XtFree(f->name);
-    for (i = 0; i < CHAR_TABLE_SIZE; i++) {
-	struct charinfo *ptr = f->char_table[i];
-	while (ptr) {
-	    struct charinfo *tem = ptr;
-	    ptr = ptr->next;
-	    XtFree((char *)tem);
-	}
-    }
-    XtFree((char *)f);
-}
-
-
-static
-unsigned hash_name(name)
-    char *name;
-{
-    unsigned n = 0;
-    /* XXX do better than this */
-    while (*name)
-	n = (n << 1) ^ *name++;
-
-    return n;
-}
-
-static
-int scale_round(n, x, y)
-    int n, x, y;
-{
-  int y2;
-
-  if (x == 0)
-    return 0;
-  y2 = y/2;
-  if (n >= 0) {
-    if (n <= (INT_MAX - y2)/x)
-      return (n*x + y2)/y;
-  }
-  else if (-(unsigned)n <= (-(unsigned)INT_MIN - y2)/x)
-      return (n*x - y2)/y;
-  return (int)(n*(double)x/(double)y + .5);
-}
-
-static
-char *canonicalize_name(s)
-    char *s;
-{
-    static char ch[2];
-    if (s[0] == 'c' && s[1] == 'h' && s[2] == 'a' && s[3] == 'r') {
-	char *p;
-	int n;
-
-	for (p = s + 4; *p; p++)
-	    if (!isascii(*p) || !isdigit((unsigned char)*p))
-		return s;
-	n = atoi(s + 4);
-	if (n >= 0 && n <= 0xff) {
-	    ch[0] = (char)n;
-	    return ch;
-	}
-    }
-    return s;
-}
-
-/* Return 1 if the character is present in the font; widthp gets the
-width if non-null. */
-
-int device_char_width(f, ps, name, widthp)
-    DeviceFont *f;
-    int ps;
-    char *name;
-    int *widthp;
-{
-    struct charinfo *p;
-
-    name = canonicalize_name(name);
-    for (p = f->char_table[hash_name(name) % CHAR_TABLE_SIZE];; p = p->next) {
-	if (!p)
-	    return 0;
-	if (strcmp(p->name, name) == 0)
-	    break;
-    }
-    *widthp = scale_round(p->width, ps, f->dev->unitwidth);
-    return 1;
-}
-
-int device_code_width(f, ps, code, widthp)
-    DeviceFont *f;
-    int ps;
-    int code;
-    int *widthp;
-{
-    struct charinfo *p;
-
-    for (p = f->code_table[code & 0xff];; p = p->code_next) {
-	if (!p)
-	    return 0;
-	if (p->code == code)
-	    break;
-    }
-    *widthp = scale_round(p->width, ps, f->dev->unitwidth);
-    return 1;
-}
-
-char *device_name_for_code(f, code)
-    DeviceFont *f;
-    int code;
-{
-    static struct charinfo *state = 0;
-    if (f)
-	state = f->code_table[code & 0xff];
-    for (; state; state = state->code_next)
-	if (state->code == code && state->name[0] != '\0') {
-	    char *name = state->name;
-	    state = state->code_next;
-	    return name;
-	}
-    return 0;
-}
-
-int device_font_special(f)
-    DeviceFont *f;
-{
-    return f->special;
-}
-    
-static
-struct charinfo *add_char(f, name, width, code)
-    DeviceFont *f;
-    char *name;
-    int width, code;
-{
-    struct charinfo **pp;
-    struct charinfo *ci;
-    
-    name = canonicalize_name(name);
-    if (strcmp(name, "---") == 0)
-	name = "";
-
-    ci = (struct charinfo *)XtMalloc(XtOffsetOf(struct charinfo, name[0])
-				     + strlen(name) + 1);
-    
-    strcpy(ci->name, name);
-    ci->width = width;
-    ci->code = code;
-    
-    if (*name != '\0') {
-	pp = &f->char_table[hash_name(name) % CHAR_TABLE_SIZE];
-	ci->next = *pp;
-	*pp = ci;
-    }
-    pp = &f->code_table[code & 0xff];
-    ci->code_next = *pp;
-    *pp = ci;
-    return ci;
-}
-
-/* Return non-zero for success. */
-
-static
-int read_charset_section(f, fp)
-    DeviceFont *f;
-    FILE *fp;
-{
-    struct charinfo *last_charinfo = 0;
-    char buf[256];
-
-    while (fgets(buf, sizeof(buf), fp)) {
-	char *name;
-	int width;
-	int code;
-	char *p;
-
-	current_lineno++;
-	name = strtok(buf, WS);
-	if (!name)
-	    continue;		/* ignore blank lines */
-	p = strtok((char *)0, WS);
-	if (!p)			/* end of charset section */
-	    break;
-	if (strcmp(p, "\"") == 0) {
-	    if (!last_charinfo) {
-		error("first line of charset section cannot use `\"'");
-		return 0;
-	    }
-	    else
-		(void)add_char(f, name,
-			       last_charinfo->width, last_charinfo->code);
-	}
-	else {
-	    char *q;
-	    if (sscanf(p, "%d", &width) != 1) {
-		error("bad width field");
-		return 0;
-	    }
-	    p = strtok((char *)0, WS);
-	    if (!p) {
-		error("missing type field");
-		return 0;
-	    }
-	    p = strtok((char *)0, WS);
-	    if (!p) {
-		error("missing code field");
-		return 0;
-	    }
-	    code = (int)strtol(p, &q, 0);
-	    if (q == p) {
-		error("bad code field");
-		return 0;
-	    }
-	    last_charinfo = add_char(f, name, width, code);
-	}
-    }
-    return 1;
-}
-
-static
-FILE *find_file(file, result)
-    char *file, **result;
-{
-  char *buf = NULL;
-  int bufsiz = 0;
-  int flen;
-  FILE *fp;
-  char *path;
-  char *env;
-
-  env = getenv(FONTPATH_ENV_VAR);
-  path = XtMalloc(((env && *env) ? strlen(env) + 1 : 0)
-		  + strlen(FONTPATH) + 1);
-  *path = '\0';
-  if (env && *env) {
-    strcat(path, env);
-    strcat(path, ":");
-  }
-  strcat(path, FONTPATH);
-
-  *result = NULL;
-  
-  if (file == NULL)
-    return NULL;
-  if (*file == '\0')
-    return NULL;
-  
-  if (*file == '/') {
-    fp = fopen(file, "r");
-    if (fp)
-      *result = XtNewString(file);
-    return fp;
-  }
-  
-  flen = strlen(file);
-  
-  while (*path) {
-    int len;
-    char *start, *end;
-    
-    start = path;
-    end = strchr(path, ':');
-    if (end)
-      path = end + 1;
-    else
-      path = end = strchr(path, '\0');
-    if (start >= end)
-      continue;
-    if (end[-1] == '/')
-      --end;
-    len = (end - start) + 1 + flen + 1;
-    if (len > bufsiz) {
-      if (buf)
-	buf = XtRealloc(buf, len);
-      else
-	buf = XtMalloc(len);
-      bufsiz = len;
-    }
-    memcpy(buf, start, end - start);
-    buf[end - start] = '/';
-    strcpy(buf + (end - start) + 1, file);
-    fp = fopen(buf, "r");
-    if (fp) {
-      *result = buf;
-      return fp;
-    }
-  }
-  XtFree(buf);
-  return NULL;
-}
-
-static
-FILE *open_device_file(device_name, file_name, result)
-     char *device_name, *file_name, **result;
-{
-  char *buf, *path;
-  FILE *fp;
-
-  buf = XtMalloc(3 + strlen(device_name) + 1 + strlen(file_name) + 1);
-  sprintf(buf, "dev%s/%s", device_name, file_name);
-  fp = find_file(buf, result);
-  if (!fp) {
-      fprintf(stderr, "can't find device file `%s'\n", file_name);
-      fflush(stderr);
-  }
-  XtFree(buf);
-  return fp;
-}
-
-static
-void error(s)
-    char *s;
-{
-    if (current_filename) {
-	fprintf(stderr, "%s:", current_filename);
-	if (current_lineno > 0)
-	    fprintf(stderr, "%d:", current_lineno);
-	putc(' ', stderr);
-    }
-    fputs(s, stderr);
-    putc('\n', stderr);
-    fflush(stderr);
-}
-
-/*
-Local Variables:
-c-indent-level: 4
-c-continued-statement-offset: 4
-c-brace-offset: -4
-c-argdecl-indent: 4
-c-label-offset: -4
-c-tab-always-indent: nil
-End:
-*/
diff --git a/contrib/groff/src/xditview/device.h b/contrib/groff/src/xditview/device.h
deleted file mode 100644
index 2b9a64b..0000000
--- a/contrib/groff/src/xditview/device.h
+++ /dev/null
@@ -1,21 +0,0 @@
-
-typedef struct _DeviceFont DeviceFont;
-
-typedef struct _Device {
-    char *name;
-    int sizescale;
-    int res;
-    int unitwidth;
-    int paperlength;
-    int paperwidth;
-    int X11;
-    DeviceFont *fonts;
-} Device;
-
-extern void device_destroy();
-extern Device *device_load();
-extern DeviceFont *device_find_font();
-extern int device_char_width();
-extern char *device_name_for_code();
-extern int device_code_width();
-extern int device_font_special();
diff --git a/contrib/groff/src/xditview/draw.c b/contrib/groff/src/xditview/draw.c
deleted file mode 100644
index fe7c80f..0000000
--- a/contrib/groff/src/xditview/draw.c
+++ /dev/null
@@ -1,725 +0,0 @@
-/*
- * draw.c
- *
- * accept dvi function calls and translate to X
- */
-
-#include <X11/Xos.h>
-#include <X11/IntrinsicP.h>
-#include <X11/StringDefs.h>
-#include <stdio.h>
-#include <ctype.h>
-#include <math.h>
-
-/* math.h on a Sequent doesn't define M_PI, apparently */
-#ifndef M_PI
-#define M_PI	3.14159265358979323846
-#endif
-
-#include "DviP.h"
-
-#define DeviceToX(dw, n) ((int)((n) * (dw)->dvi.scale_factor + .5))
-#define XPos(dw) (DeviceToX((dw), (dw)->dvi.state->x - \
-                  (dw)->dvi.text_device_width) + (dw)->dvi.text_x_width)
-#define YPos(dw) (DeviceToX((dw), (dw)->dvi.state->y))
-
-static int FakeCharacter();
-
-HorizontalMove(dw, delta)
-	DviWidget	dw;
-	int		delta;
-{
-	dw->dvi.state->x += delta;
-}
-
-HorizontalGoto(dw, NewPosition)
-	DviWidget	dw;
-	int		NewPosition;
-{
-	dw->dvi.state->x = NewPosition;
-}
-
-VerticalMove(dw, delta)
-	DviWidget	dw;
-	int		delta;
-{
-	dw->dvi.state->y += delta;
-}
-
-VerticalGoto(dw, NewPosition)
-	DviWidget	dw;
-	int		NewPosition;
-{
-	dw->dvi.state->y = NewPosition;
-}
-
-AdjustCacheDeltas (dw)
-	DviWidget	dw;
-{
-	int extra;
-	int nadj;
-	int i;
-
-	nadj = 0;
-	extra = DeviceToX(dw, dw->dvi.text_device_width)
-		- dw->dvi.text_x_width;
-	if (extra == 0)
-		return;
-	for (i = 0; i <= dw->dvi.cache.index; i++)
-		if (dw->dvi.cache.adjustable[i])
-			++nadj;
-	dw->dvi.text_x_width += extra;
-	if (nadj <= 1)
-		return;
-	for (i = 0; i <= dw->dvi.cache.index; i++)
-		if (dw->dvi.cache.adjustable[i]) {
-			int x;
-			int *deltap;
-
-			x = extra/nadj;
-			deltap = &dw->dvi.cache.cache[i].delta;
-#define MIN_DELTA 2
-			if (*deltap > 0 && x + *deltap < MIN_DELTA) {
-				x = MIN_DELTA - *deltap;
-				if (x <= 0)
-					*deltap = MIN_DELTA;
-				else
-					x = 0;
-			}
-			else
-				*deltap += x;
-			extra -= x;
-			--nadj;
-			dw->dvi.cache.adjustable[i] = 0;
-		}
-}
-
-FlushCharCache (dw)
-	DviWidget	dw;
-{
-	if (dw->dvi.cache.char_index != 0) {
-		AdjustCacheDeltas (dw);
-		XDrawText (XtDisplay (dw), XtWindow (dw), dw->dvi.normal_GC,
-			   dw->dvi.cache.start_x, dw->dvi.cache.start_y,
-			   dw->dvi.cache.cache, dw->dvi.cache.index + 1);
-	}	
-	dw->dvi.cache.index = 0;
-	dw->dvi.cache.max = DVI_TEXT_CACHE_SIZE;
-#if 0
-	if (dw->dvi.noPolyText)
-	    dw->dvi.cache.max = 1;
-#endif
-	dw->dvi.cache.char_index = 0;
-	dw->dvi.cache.cache[0].nchars = 0;
-	dw->dvi.cache.start_x = dw->dvi.cache.x	= XPos (dw);
-	dw->dvi.cache.start_y = dw->dvi.cache.y = YPos (dw);
-}
-
-Newline (dw)
-	DviWidget	dw;
-{
-	FlushCharCache (dw);
-	dw->dvi.text_x_width = dw->dvi.text_device_width = 0;
-	dw->dvi.word_flag = 0;
-}
-
-Word (dw)
-	DviWidget	dw;
-{
-	dw->dvi.word_flag = 1;
-}
-
-#define charWidth(fi,c) (\
-    (fi)->per_char ?\
-	(fi)->per_char[(c) - (fi)->min_char_or_byte2].width\
-    :\
-	(fi)->max_bounds.width\
-)
- 
-
-static
-int charExists (fi, c)
-	XFontStruct	*fi;
-	int		c;
-{
-	XCharStruct *p;
-
-	if (fi->per_char == NULL ||
-	    c < fi->min_char_or_byte2 || c > fi->max_char_or_byte2)
-		return 0;
-	p = fi->per_char + (c - fi->min_char_or_byte2);
-	return (p->lbearing != 0 || p->rbearing != 0 || p->width != 0
-		|| p->ascent != 0 || p->descent != 0 || p->attributes != 0);
-}
-
-static
-DoCharacter (dw, c, wid)
-	DviWidget dw;
-	int c;
-	int wid;    /* width in device units */
-{
-	register XFontStruct	*font;
-	register XTextItem	*text;
-	int	x, y;
-	
-	x = XPos(dw);
-	y = YPos(dw);
-
-	/*
-	 * quick and dirty extents calculation:
-	 */
-	if (!(y + 24 >= dw->dvi.extents.y1
-	      && y - 24 <= dw->dvi.extents.y2
-#if 0
-	      && x + 24 >= dw->dvi.extents.x1
-	      && x - 24 <= dw->dvi.extents.x2
-#endif
-	    ))
-		return;
-	
-	if (y != dw->dvi.cache.y
-	    || dw->dvi.cache.char_index >= DVI_CHAR_CACHE_SIZE) {
-		FlushCharCache (dw);
-		x = dw->dvi.cache.x;
-		dw->dvi.cache.adjustable[dw->dvi.cache.index] = 0;
-	}
-	/*
-	 * load a new font, if the current block is not empty,
-	 * step to the next.
-	 */
-	if (dw->dvi.cache.font_size != dw->dvi.state->font_size ||
-	    dw->dvi.cache.font_number != dw->dvi.state->font_number)
-	{
-		FlushCharCache (dw);
-		x = dw->dvi.cache.x;
-		dw->dvi.cache.font_size = dw->dvi.state->font_size;
-		dw->dvi.cache.font_number = dw->dvi.state->font_number;
-		dw->dvi.cache.font = QueryFont (dw,
-						dw->dvi.cache.font_number,
-						dw->dvi.cache.font_size);
-		if (dw->dvi.cache.cache[dw->dvi.cache.index].nchars != 0) {
-			++dw->dvi.cache.index;
-			if (dw->dvi.cache.index >= dw->dvi.cache.max)
-				FlushCharCache (dw);
-			dw->dvi.cache.cache[dw->dvi.cache.index].nchars = 0;
-			dw->dvi.cache.adjustable[dw->dvi.cache.index] = 0;
-		}
-	}
-	if (x != dw->dvi.cache.x || dw->dvi.word_flag) {
-		if (dw->dvi.cache.cache[dw->dvi.cache.index].nchars != 0) {
-			++dw->dvi.cache.index;
-			if (dw->dvi.cache.index >= dw->dvi.cache.max)
-				FlushCharCache (dw);
-			dw->dvi.cache.cache[dw->dvi.cache.index].nchars = 0;
-			dw->dvi.cache.adjustable[dw->dvi.cache.index] = 0;
-		}
-		dw->dvi.cache.adjustable[dw->dvi.cache.index]
-			= dw->dvi.word_flag;
-		dw->dvi.word_flag = 0;
-	}
-	font = dw->dvi.cache.font;
-	text = &dw->dvi.cache.cache[dw->dvi.cache.index];
-	if (text->nchars == 0) {
-		text->chars = &dw->dvi.cache.char_cache[dw->dvi.cache.char_index];
-		text->delta = x - dw->dvi.cache.x;
-		if (font != dw->dvi.font) {
-			text->font = font->fid;
-			dw->dvi.font = font;
-		} else
-			text->font = None;
-		dw->dvi.cache.x += text->delta;
-	}
-	if (charExists(font, c)) {
-		int w;
-		dw->dvi.cache.char_cache[dw->dvi.cache.char_index++] = (char) c;
-		++text->nchars;
-		w = charWidth(font, c);
-		dw->dvi.cache.x += w;
-		if (wid != 0) {
-			dw->dvi.text_x_width += w;
-			dw->dvi.text_device_width += wid;
-		}
-	}
-}
-
-static
-int FindCharWidth (dw, buf, widp)
-	DviWidget dw;
-	char *buf;
-	int *widp;
-{
-	int maxpos;
-	int i;
-
-	if (dw->dvi.device_font == 0
-	    || dw->dvi.state->font_number != dw->dvi.device_font_number) {
-		dw->dvi.device_font_number = dw->dvi.state->font_number;
-		dw->dvi.device_font
-			= QueryDeviceFont (dw, dw->dvi.device_font_number);
-	}
-	if (dw->dvi.device_font
-	    && device_char_width (dw->dvi.device_font,
-				  dw->dvi.state->font_size, buf, widp))
-		return 1;
-
-	maxpos = MaxFontPosition (dw);
-	for (i = 1; i <= maxpos; i++) {
-		DeviceFont *f = QueryDeviceFont (dw, i);
-		if (f && device_font_special (f)
-		    && device_char_width (f, dw->dvi.state->font_size,
-					  buf, widp)) {
-			dw->dvi.state->font_number = i;
-			return 1;
-		}
-	}
-	return 0;
-}
-
-/* Return the width of the character in device units. */
-
-int PutCharacter (dw, buf)
-	DviWidget dw;
-	char *buf;
-{
-	int		prevFont;
-	int		c = -1;
-	int		wid = 0;
-	DviCharNameMap	*map;
-
-	if (!dw->dvi.display_enable)
-		return 0;	/* The width doesn't matter in this case. */
-	prevFont = dw->dvi.state->font_number;
-	if (!FindCharWidth (dw, buf, &wid))
-		return 0;
-	map = QueryFontMap (dw, dw->dvi.state->font_number);
-	if (map)
-		c = DviCharIndex (map, buf);
-	if (c >= 0)
-		DoCharacter (dw, c, wid);
-	else
-		(void) FakeCharacter (dw, buf, wid);
-	dw->dvi.state->font_number = prevFont;
-	return wid;
-}
-
-/* Return 1 if we can fake it; 0 otherwise. */
-
-static
-int FakeCharacter (dw, buf, wid)
-	DviWidget dw;
-	char *buf;
-	int wid;
-{
-	int oldx, oldw;
-	char ch[2];
-	char *chars = 0;
-
-	if (buf[0] == '\0' || buf[1] == '\0' || buf[2] != '\0')
-		return 0;
-#define pack2(c1, c2) (((c1) << 8) | (c2))
-
-	switch (pack2(buf[0], buf[1])) {
-	case pack2('f', 'i'):
-		chars = "fi";
-		break;
-	case pack2('f', 'l'):
-		chars = "fl";
-		break;
-	case pack2('f', 'f'):
-		chars = "ff";
-		break;
-	case pack2('F', 'i'):
-		chars = "ffi";
-		break;
-	case pack2('F', 'l'):
-		chars = "ffl";
-		break;
-	}
-	if (!chars)
-		return 0;
-	oldx = dw->dvi.state->x;
-	oldw = dw->dvi.text_device_width;
-	ch[1] = '\0';
-	for (; *chars; chars++) {
-		ch[0] = *chars;
-		dw->dvi.state->x += PutCharacter (dw, ch);
-	}
-	dw->dvi.state->x = oldx;
-	dw->dvi.text_device_width = oldw + wid;
-	return 1;
-}
-
-PutNumberedCharacter (dw, c)
-	DviWidget dw;
-	int c;
-{
-	char *name;
-	int wid;
-	DviCharNameMap	*map;
-
-	if (!dw->dvi.display_enable)
-		return;
-
-	if (dw->dvi.device_font == 0
-	    || dw->dvi.state->font_number != dw->dvi.device_font_number) {
-		dw->dvi.device_font_number = dw->dvi.state->font_number;
-		dw->dvi.device_font
-			= QueryDeviceFont (dw, dw->dvi.device_font_number);
-	}
-	
-	if (dw->dvi.device_font == 0
-	    || !device_code_width (dw->dvi.device_font,
-				   dw->dvi.state->font_size, c, &wid))
-		return;
-	if (dw->dvi.native) {
-		DoCharacter (dw, c, wid);
-		return;
-	}
-	map = QueryFontMap (dw, dw->dvi.state->font_number);
-	if (!map)
-		return;
-	for (name = device_name_for_code (dw->dvi.device_font, c);
-	     name;
-	     name = device_name_for_code ((DeviceFont *)0, c)) {
-		int code = DviCharIndex (map, name);
-		if (code >= 0) {
-			DoCharacter (dw, code, wid);
-			break;
-		}
-		if (FakeCharacter (dw, name, wid))
-			break;
-	}
-}
-
-ClearPage (dw)
-	DviWidget	dw;
-{
-	XClearWindow (XtDisplay (dw), XtWindow (dw));
-}
-
-static
-setGC (dw)
-	DviWidget	dw;
-{
-	int desired_line_width;
-	
-	if (dw->dvi.line_thickness < 0)
-		desired_line_width = (int)(((double)dw->dvi.device_resolution
-					    * dw->dvi.state->font_size)
-					   / (10.0*72.0*dw->dvi.sizescale));
-	else
-		desired_line_width = dw->dvi.line_thickness;
-	
-	if (desired_line_width != dw->dvi.line_width) {
-		XGCValues values;
-		values.line_width = DeviceToX(dw, desired_line_width);
-		if (values.line_width == 0)
-			values.line_width = 1;
-		XChangeGC(XtDisplay (dw), dw->dvi.normal_GC,
-			  GCLineWidth, &values);
-		dw->dvi.line_width = desired_line_width;
-	}
-}
-
-static
-setFillGC (dw)
-	DviWidget	dw;
-{
-	int fill_type;
-	unsigned long mask = GCFillStyle | GCForeground;
-
-	fill_type = (dw->dvi.fill * 10) / (DVI_FILL_MAX + 1);
-	if (dw->dvi.fill_type != fill_type) {
-		XGCValues values;
-		if (fill_type <= 0) {
-			values.foreground = dw->dvi.background;
-			values.fill_style = FillSolid;
-		} else if (fill_type >= 9) {
-			values.foreground = dw->dvi.foreground;
-			values.fill_style = FillSolid;
-		} else {
-			values.foreground = dw->dvi.foreground;
-			values.fill_style = FillOpaqueStippled;
-			values.stipple = dw->dvi.gray[fill_type - 1];
-			mask |= GCStipple;
-		}
-		XChangeGC(XtDisplay (dw), dw->dvi.fill_GC, mask, &values);
-		dw->dvi.fill_type = fill_type;
-	}
-}
-
-DrawLine (dw, x, y)
-	DviWidget	dw;
-	int		x, y;
-{
-	int xp, yp;
-
-	AdjustCacheDeltas (dw);
-	setGC (dw);
-	xp = XPos (dw);
-	yp = YPos (dw);
-	XDrawLine (XtDisplay (dw), XtWindow (dw), dw->dvi.normal_GC,
-		   xp, yp,
-		   xp + DeviceToX (dw, x), yp + DeviceToX (dw, y));
-}
-
-DrawCircle (dw, diam)
-	DviWidget	dw;
-	int		diam;
-{
-	int d;
-
-	AdjustCacheDeltas (dw);
-	setGC (dw);
-	d = DeviceToX (dw, diam);
-	XDrawArc (XtDisplay (dw), XtWindow (dw), dw->dvi.normal_GC,
-		  XPos (dw), YPos (dw) - d/2,
-		  d, d, 0, 64*360);
-}
-
-DrawFilledCircle (dw, diam)
-	DviWidget	dw;
-	int		diam;
-{
-	int d;
-
-	AdjustCacheDeltas (dw);
-	setFillGC (dw);
-	d = DeviceToX (dw, diam);
-	XFillArc (XtDisplay (dw), XtWindow (dw), dw->dvi.fill_GC,
-		  XPos (dw), YPos (dw) - d/2,
-		  d, d, 0, 64*360);
-	XDrawArc (XtDisplay (dw), XtWindow (dw), dw->dvi.fill_GC,
-		  XPos (dw), YPos (dw) - d/2,
-		  d, d, 0, 64*360);
-}
-
-DrawEllipse (dw, a, b)
-	DviWidget	dw;
-	int		a, b;
-{
-	AdjustCacheDeltas (dw);
-	setGC (dw);
-	XDrawArc (XtDisplay (dw), XtWindow (dw), dw->dvi.normal_GC,
-		  XPos (dw), YPos (dw) - DeviceToX (dw, b/2),
-		  DeviceToX (dw, a), DeviceToX (dw, b), 0, 64*360);
-}
-
-DrawFilledEllipse (dw, a, b)
-	DviWidget	dw;
-	int		a, b;
-{
-	AdjustCacheDeltas (dw);
-	setFillGC (dw);
-	XFillArc (XtDisplay (dw), XtWindow (dw), dw->dvi.fill_GC,
-		  XPos (dw), YPos (dw) - DeviceToX (dw, b/2),
-		  DeviceToX (dw, a), DeviceToX (dw, b), 0, 64*360);
-	XDrawArc (XtDisplay (dw), XtWindow (dw), dw->dvi.fill_GC,
-		  XPos (dw), YPos (dw) - DeviceToX (dw, b/2),
-		  DeviceToX (dw, a), DeviceToX (dw, b), 0, 64*360);
-}
-
-DrawArc (dw, x0, y0, x1, y1)
-	DviWidget	dw;
-	int		x0, y0, x1, y1;
-{
-	int angle1, angle2;
-	int rad = (int)((sqrt ((double)x0*x0 + (double)y0*y0)
-			+ sqrt ((double)x1*x1 + (double)y1*y1) + 1.0)/2.0);
-	if ((x0 == 0 && y0 == 0) || (x1 == 0 && y1 == 0))
-		return;
-	angle1 = (int)(atan2 ((double)y0, (double)-x0)*180.0*64.0/M_PI);
-	angle2 = (int)(atan2 ((double)-y1, (double)x1)*180.0*64.0/M_PI);
-	
-	angle2 -= angle1;
-	if (angle2 < 0)
-		angle2 += 64*360;
-	
-	AdjustCacheDeltas (dw);
-	setGC (dw);
-
-	rad = DeviceToX (dw, rad);
-	XDrawArc (XtDisplay (dw), XtWindow (dw), dw->dvi.normal_GC,
-		  XPos (dw) + DeviceToX (dw, x0) - rad,
-		  YPos (dw) + DeviceToX (dw, y0) - rad,
-		  rad*2, rad*2, angle1, angle2);
-}
-
-DrawPolygon (dw, v, n)
-	DviWidget	dw;
-	int		*v;
-	int		n;
-{
-	XPoint *p;
-	int i;
-	int dx, dy;
-	
-	n /= 2;
-	
-	AdjustCacheDeltas (dw);
-	setGC (dw);
-	p = (XPoint *)XtMalloc((n + 2)*sizeof(XPoint));
-	p[0].x = XPos (dw);
-	p[0].y = YPos (dw);
-	dx = 0;
-	dy = 0;
-	for (i = 0; i < n; i++) {
-		dx += v[2*i];
-		p[i + 1].x = DeviceToX (dw, dx) + p[0].x;
-		dy += v[2*i + 1];
-		p[i + 1].y = DeviceToX (dw, dy) + p[0].y;
-	}
-	p[n+1].x = p[0].x;
-	p[n+1].y = p[0].y;
-	XDrawLines (XtDisplay (dw), XtWindow (dw), dw->dvi.normal_GC,
-		   p, n + 2, CoordModeOrigin);
-	XtFree((char *)p);
-}
-
-
-DrawFilledPolygon (dw, v, n)
-	DviWidget	dw;
-	int		*v;
-	int		n;
-{
-	XPoint *p;
-	int i;
-	int dx, dy;
-	
-	n /= 2;
-	if (n < 2)
-		return;
-	
-	AdjustCacheDeltas (dw);
-	setFillGC (dw);
-	p = (XPoint *)XtMalloc((n + 2)*sizeof(XPoint));
-	p[0].x = p[n+1].x = XPos (dw);
-	p[0].y = p[n+1].y = YPos (dw);
-	dx = 0;
-	dy = 0;
-	for (i = 0; i < n; i++) {
-		dx += v[2*i];
-		p[i + 1].x = DeviceToX (dw, dx) + p[0].x;
-		dy += v[2*i + 1];
-		p[i + 1].y = DeviceToX (dw, dy) + p[0].y;
-	}
-	XFillPolygon (XtDisplay (dw), XtWindow (dw), dw->dvi.fill_GC,
-		      p, n + 1, Complex, CoordModeOrigin);
-	XDrawLines (XtDisplay (dw), XtWindow (dw), dw->dvi.fill_GC,
-		      p, n + 2, CoordModeOrigin);
-	XtFree((char *)p);
-}
-
-#define POINTS_MAX 10000
-
-static
-appendPoint(points, pointi, x, y)
-	XPoint	*points;
-	int	*pointi;
-	int	x, y;
-{
-	if (*pointi < POINTS_MAX) {
-		points[*pointi].x = x;
-		points[*pointi].y = y;
-		*pointi += 1;
-	}
-}
-
-#define FLATNESS 1
-
-static
-flattenCurve(points, pointi, x2, y2, x3, y3, x4, y4)
-	XPoint	*points;
-	int	*pointi;
-	int	x2, y2, x3, y3, x4, y4;
-{
-	int x1, y1, dx, dy, n1, n2, n;
-
-	x1 = points[*pointi - 1].x;
-	y1 = points[*pointi - 1].y;
-	
-	dx = x4 - x1;
-	dy = y4 - y1;
-	
-	n1 = dy*(x2 - x1) - dx*(y2 - y1);
-	n2 = dy*(x3 - x1) - dx*(y3 - y1);
-	if (n1 < 0)
-		n1 = -n1;
-	if (n2 < 0)
-		n2 = -n2;
-	n = n1 > n2 ? n1 : n2;
-
-	if (n*n / (dy*dy + dx*dx) <= FLATNESS*FLATNESS)
-		appendPoint (points, pointi, x4, y4);
-	else {
-		flattenCurve (points, pointi,
-			      (x1 + x2)/2, (y1 + y2)/2,
-			      (x1 + x2*2 + x3)/4, (y1 + y2*2 + y3)/4,
-			      (x1 +3*x2 + 3*x3 + x4)/8, (y1 +3*y2 + 3*y3 + y4)/8);
-		flattenCurve (points, pointi,
-			      (x2 + x3*2 + x4)/4, (y2 + y3*2 + y4)/4,
-			      (x3 + x4)/2, (y3 + y4)/2,
-			      x4, y4);
-	}
-}
-
-
-DrawSpline (dw, v, n)
-	DviWidget	dw;
-	int		*v;
-	int		n;
-{
-	int sx, sy, tx, ty;
-	int ox, oy, dx, dy;
-	int i;
-	int pointi;
-	XPoint points[POINTS_MAX];
-	
-	if (n == 0 || (n & 1) != 0)
-		return;
-	AdjustCacheDeltas (dw);
-	setGC (dw);
-	ox = XPos (dw);
-	oy = YPos (dw);
-	dx = v[0];
-	dy = v[1];
-	sx = ox;
-	sy = oy;
-	tx = sx + DeviceToX (dw, dx);
-	ty = sy + DeviceToX (dw, dy);
-	
-	pointi = 0;
-	
-	appendPoint (points, &pointi, sx, sy);
-	appendPoint (points, &pointi, (sx + tx)/2, (sy + ty)/2);
-	
-	for (i = 2; i < n; i += 2) {
-		int ux = ox + DeviceToX (dw, dx += v[i]);
-		int uy = oy + DeviceToX (dw, dy += v[i+1]);
-		flattenCurve (points, &pointi,
-			       (sx + tx*5)/6, (sy + ty*5)/6,
-			       (tx*5 + ux)/6, (ty*5 + uy)/6,
-			       (tx + ux)/2, (ty + uy)/2);
-		sx = tx;
-		sy = ty;
-		tx = ux;
-		ty = uy;
-	}
-	
-	appendPoint (points, &pointi, tx, ty);
-	
-	XDrawLines (XtDisplay (dw), XtWindow (dw), dw->dvi.normal_GC,
-		   points, pointi, CoordModeOrigin);
-}
-
-
-/*
-Local Variables:
-c-indent-level: 8
-c-continued-statement-offset: 8
-c-brace-offset: -8
-c-argdecl-indent: 8
-c-label-offset: -8
-c-tab-always-indent: nil
-End:
-*/
diff --git a/contrib/groff/src/xditview/font.c b/contrib/groff/src/xditview/font.c
deleted file mode 100644
index 2e028aa..0000000
--- a/contrib/groff/src/xditview/font.c
+++ /dev/null
@@ -1,471 +0,0 @@
-/*
- * font.c
- *
- * map dvi fonts to X fonts
- */
-
-#include <X11/Xos.h>
-#include <X11/IntrinsicP.h>
-#include <X11/StringDefs.h>
-#include <stdio.h>
-#include <ctype.h>
-#include "DviP.h"
-#include "XFontName.h"
-
-static DisposeFontSizes();
-
-static char *
-savestr (s)
-	char	*s;
-{
-	char	*n;
-
-	if (!s)
-		return 0;
-	n = XtMalloc (strlen (s) + 1);
-	if (n)
-		strcpy (n, s);
-	return n;
-}
-
-static DviFontList *
-LookupFontByPosition (dw, position)
-	DviWidget	dw;
-	int		position;
-{
-	DviFontList	*f;
-
-	for (f = dw->dvi.fonts; f; f = f->next)
-		if (f->dvi_number == position)
-			break;
-	return f;
-}
-
-int
-MaxFontPosition (dw)
-	DviWidget dw;
-{
-	DviFontList	*f;
-	int n = -1;
-
-	for (f = dw->dvi.fonts; f; f = f->next)
-		if (f->dvi_number > n)
-			n = f->dvi_number;
-	return n;
-}
-
-static DviFontSizeList *
-LookupFontSizeBySize (dw, f, size)
-	DviWidget	dw;
-	DviFontList	*f;
-	int		size;
-{
-	DviFontSizeList	*fs, *best = 0, *smallest = 0;
-	int		bestsize = 0;
-	XFontName	fontName;
-	unsigned int    fontNameAttributes;
-	char	    	fontNameString[2048];
-	int		decipointsize;
-	
-	if (f->scalable) {
-		decipointsize = (10*size)/dw->dvi.sizescale;
-		for (best = f->sizes; best; best = best->next)
-			if (best->size == decipointsize)
-				return best;
-		best = (DviFontSizeList *) XtMalloc(sizeof *best);
-		best->next = f->sizes;
-		best->size = decipointsize;
-		f->sizes = best;
-		XParseFontName (f->x_name, &fontName, &fontNameAttributes);
-		fontNameAttributes &= ~(FontNamePixelSize|FontNameAverageWidth);
-		fontNameAttributes |= FontNameResolutionX;
-		fontNameAttributes |= FontNameResolutionY;
-		fontNameAttributes |= FontNamePointSize;
-		fontName.ResolutionX = dw->dvi.display_resolution;
-		fontName.ResolutionY = dw->dvi.display_resolution;
-		fontName.PointSize = decipointsize;
-		XFormatFontName (&fontName, fontNameAttributes, fontNameString);
-		best->x_name = savestr (fontNameString);
-		best->doesnt_exist = 0;
-		best->font = 0;
-		return best;
-	}
-	for (fs = f->sizes; fs; fs=fs->next) {
-		if (dw->dvi.sizescale*fs->size <= 10*size
-		    && fs->size >= bestsize) {
-			best = fs;
-			bestsize = fs->size;
-		}
-		if (smallest == 0 || fs->size < smallest->size)
-			smallest = fs;
-	}
-	return best ? best : smallest;
-}
-
-static char *
-SkipFontNameElement (n)
-	char	*n;
-{
-	while (*n != '-')
-		if (!*++n)
-			return 0;
-	return n+1;
-}
-
-# define SizePosition		8
-# define EncodingPosition	13
-
-static
-ConvertFontNameToSize (n)
-	char	*n;
-{
-	int	i, size;
-
-	for (i = 0; i < SizePosition; i++) {
-		n = SkipFontNameElement (n);
-		if (!n)
-			return -1;
-	}
-	size = atoi (n);
-	return size;
-}
-
-static char *
-ConvertFontNameToEncoding (n)
-	char	*n;
-{
-        int i;
-	for (i = 0; i < EncodingPosition; i++) {
-		n = SkipFontNameElement (n);
-		if (!n)
-			return 0;
-	}
-	return n;
-}
-
-DviFontSizeList *
-InstallFontSizes (dw, x_name, scalablep)
-	DviWidget	dw;
-	char		*x_name;
-	Boolean		*scalablep;
-{
-	char	fontNameString[2048];
-	char	**fonts;
-	int	i, count;
-	int	size;
-	DviFontSizeList	*sizes, *new;
-	XFontName	fontName;
-	unsigned int	fontNameAttributes;
-
-	*scalablep = FALSE;
-	if (!XParseFontName (x_name, &fontName, &fontNameAttributes))
-		return 0;
-	fontNameAttributes &= ~(FontNamePixelSize|FontNamePointSize
-				|FontNameAverageWidth);
-	fontNameAttributes |= FontNameResolutionX;
-	fontNameAttributes |= FontNameResolutionY;
-	fontName.ResolutionX = dw->dvi.display_resolution;
-	fontName.ResolutionY = dw->dvi.display_resolution;
-	XFormatFontName (&fontName, fontNameAttributes, fontNameString);
-	fonts = XListFonts (XtDisplay (dw), fontNameString, 10000000, &count);
-	sizes = 0;
-	for (i = 0; i < count; i++) {
-		size = ConvertFontNameToSize (fonts[i]);
-		if (size == 0) {
-			DisposeFontSizes (dw, sizes);
-			sizes = 0;
-			*scalablep = TRUE;
-			break;
-		}
-		if (size != -1) {
-			new = (DviFontSizeList *) XtMalloc (sizeof *new);
-			new->next = sizes;
-			new->size = size;
-			new->x_name = savestr (fonts[i]);
-			new->doesnt_exist = 0;
-			new->font = 0;
-			sizes = new;
-		}
-	}
-	XFreeFontNames (fonts);
-	return sizes;
-}
-
-static
-DisposeFontSizes (dw, fs)
-	DviWidget	dw;
-	DviFontSizeList	*fs;
-{
-	DviFontSizeList	*next;
-
-	for (; fs; fs=next) {
-		next = fs->next;
-		if (fs->x_name)
-			XtFree (fs->x_name);
-		if (fs->font && fs->font != dw->dvi.default_font) {
-			XUnloadFont (XtDisplay (dw), fs->font->fid);
-			XFree ((char *)fs->font);
-		}
-		XtFree ((char *) fs);
-	}
-}
-
-static DviFontList *
-InstallFont (dw, position, dvi_name, x_name)
-	DviWidget	dw;
-	int		position;
-	char		*dvi_name;
-	char		*x_name;
-{
-	DviFontList	*f;
-	char		*encoding;
-
-	if ((f = LookupFontByPosition (dw, position)) != NULL) {
-		/*
-		 * ignore gratuitous font loading
-		 */
-		if (!strcmp (f->dvi_name, dvi_name) &&
-		    !strcmp (f->x_name, x_name))
-			return f;
-
-		DisposeFontSizes (dw, f->sizes);
-		if (f->dvi_name)
-			XtFree (f->dvi_name);
-		if (f->x_name)
-			XtFree (f->x_name);
-		f->device_font = 0;
-	} else {
-		f = (DviFontList *) XtMalloc (sizeof (*f));
-		f->next = dw->dvi.fonts;
-		dw->dvi.fonts = f;
-	}
-	f->initialized = FALSE;
-	f->dvi_name = savestr (dvi_name);
-	f->device_font = device_find_font (dw->dvi.device, dvi_name);
-	f->x_name = savestr (x_name);
-	f->dvi_number = position;
-	f->sizes = 0;
-	f->scalable = FALSE;
-	if (f->x_name) {
-		encoding = ConvertFontNameToEncoding (f->x_name);
-		f->char_map = DviFindMap (encoding);
-	} else
-		f->char_map = 0;
-	/* 
-	 * force requery of fonts
-	 */
-	dw->dvi.font = 0;
-	dw->dvi.font_number = -1;
-	dw->dvi.cache.font = 0;
-	dw->dvi.cache.font_number = -1;
-	dw->dvi.device_font = 0;
-	dw->dvi.device_font_number = -1;
-	return f;
-}
-
-ForgetFonts (dw)
-	DviWidget dw;
-{
-	DviFontList *f = dw->dvi.fonts;
-	
-	while (f) {
-		DviFontList *tem = f;
-
-		if (f->sizes)
-			DisposeFontSizes (dw, f->sizes);
-		if (f->dvi_name)
-			XtFree (f->dvi_name);
-		if (f->x_name)
-			XtFree (f->x_name);
-		f = f->next;
-		XtFree ((char *) tem);
-	}
-	
-	/* 
-	 * force requery of fonts
-	 */
-	dw->dvi.font = 0;
-	dw->dvi.font_number = -1;
-	dw->dvi.cache.font = 0;
-	dw->dvi.cache.font_number = -1;
-	dw->dvi.device_font = 0;
-	dw->dvi.device_font_number = -1;
-	dw->dvi.fonts = 0;
-}
-
-
-static char *
-MapDviNameToXName (dw, dvi_name)
-	DviWidget	dw;
-	char		*dvi_name;
-{
-	DviFontMap	*fm;
-	
-	for (fm = dw->dvi.font_map; fm; fm=fm->next)
-		if (!strcmp (fm->dvi_name, dvi_name))
-			return fm->x_name;
-	return 0;
-}
-
-#if 0
-static char *
-MapXNameToDviName (dw, x_name)
-	DviWidget	dw;
-	char		*x_name;
-{
-	DviFontMap	*fm;
-	
-	for (fm = dw->dvi.font_map; fm; fm=fm->next)
-		if (!strcmp (fm->x_name, x_name))
-			return fm->dvi_name;
-	return 0;
-}
-#endif
-
-ParseFontMap (dw)
-	DviWidget	dw;
-{
-	char		dvi_name[1024];
-	char		x_name[2048];
-	char		*m, *s;
-	DviFontMap	*fm, *new;
-
-	if (dw->dvi.font_map)
-		DestroyFontMap (dw->dvi.font_map);
-	fm = 0;
-	m = dw->dvi.font_map_string;
-	while (*m) {
-		s = m;
-		while (*m && !isspace (*m))
-			++m;
-		strncpy (dvi_name, s, m-s);
-		dvi_name[m-s] = '\0';
-		while (isspace (*m))
-			++m;
-		s = m;
-		while (*m && *m != '\n')
-			++m;
-		strncpy (x_name, s, m-s);
-		x_name[m-s] = '\0';
-		new = (DviFontMap *) XtMalloc (sizeof *new);
-		new->x_name = savestr (x_name);
-		new->dvi_name = savestr (dvi_name);
-		new->next = fm;
-		fm = new;
-		++m;
-	}
-	dw->dvi.font_map = fm;
-}
-
-DestroyFontMap (font_map)
-	DviFontMap	*font_map;
-{
-	DviFontMap	*next;
-
-	for (; font_map; font_map = next) {
-		next = font_map->next;
-		if (font_map->x_name)
-			XtFree (font_map->x_name);
-		if (font_map->dvi_name)
-			XtFree (font_map->dvi_name);
-		XtFree ((char *) font_map);
-	}
-}
-
-/* ARGSUSED */
-
-SetFontPosition (dw, position, dvi_name, extra)
-	DviWidget	dw;
-	int		position;
-	char		*dvi_name;
-	char		*extra;	/* unused */
-{
-	char	*x_name;
-
-	x_name = MapDviNameToXName (dw, dvi_name);
-	if (x_name)
-		(void) InstallFont (dw, position, dvi_name, x_name);
-}
-
-XFontStruct *
-QueryFont (dw, position, size)
-	DviWidget	dw;
-	int		position;
-	int		size;
-{
-	DviFontList	*f;
-	DviFontSizeList	*fs;
-
-	f = LookupFontByPosition (dw, position);
-	if (!f)
-		return dw->dvi.default_font;
-	if (!f->initialized) {
-		f->sizes = InstallFontSizes (dw, f->x_name, &f->scalable);
-		f->initialized = TRUE;
-	}
-	fs = LookupFontSizeBySize (dw, f, size);
-	if (!fs)
-		return dw->dvi.default_font;
-	if (!fs->font) {
-		if (fs->x_name)
-			fs->font = XLoadQueryFont (XtDisplay (dw), fs->x_name);
-		if (!fs->font)
-			fs->font = dw->dvi.default_font;
-	}
-	return fs->font;
-}
-
-DeviceFont *
-QueryDeviceFont (dw, position)
-	DviWidget	dw;
-	int		position;
-{
-	DviFontList	*f;
-
-	f = LookupFontByPosition (dw, position);
-	if (!f)
-		return 0;
-	return f->device_font;
-}
-
-DviCharNameMap *
-QueryFontMap (dw, position)
-	DviWidget	dw;
-	int		position;
-{
-	DviFontList	*f;
-
-	f = LookupFontByPosition (dw, position);
-	if (f)
-	    return f->char_map;
-	else
-	    return 0;
-}
-
-#if 0
-LoadFont (dw, position, size)
-	DviWidget	dw;
-	int		position;
-	int		size;
-{
-	XFontStruct	*font;
-
-	font = QueryFont (dw, position, size);
-	dw->dvi.font_number = position;
-	dw->dvi.font_size = size;
-	dw->dvi.font = font;
-	XSetFont (XtDisplay (dw), dw->dvi.normal_GC, font->fid);
-	return;
-}
-#endif
-
-/*
-Local Variables:
-c-indent-level: 8
-c-continued-statement-offset: 8
-c-brace-offset: -8
-c-argdecl-indent: 8
-c-label-offset: -8
-c-tab-always-indent: nil
-End:
-*/
diff --git a/contrib/groff/src/xditview/gray1.bm b/contrib/groff/src/xditview/gray1.bm
deleted file mode 100644
index c40a95e..0000000
--- a/contrib/groff/src/xditview/gray1.bm
+++ /dev/null
@@ -1,4 +0,0 @@
-#define gray1_width 3
-#define gray1_height 3
-static char gray1_bits[] = {
-   0x00, 0x02, 0x00};
diff --git a/contrib/groff/src/xditview/gray2.bm b/contrib/groff/src/xditview/gray2.bm
deleted file mode 100644
index e87a1bc..0000000
--- a/contrib/groff/src/xditview/gray2.bm
+++ /dev/null
@@ -1,4 +0,0 @@
-#define gray2_width 3
-#define gray2_height 3
-static char gray2_bits[] = {
-   0x00, 0x03, 0x00};
diff --git a/contrib/groff/src/xditview/gray3.bm b/contrib/groff/src/xditview/gray3.bm
deleted file mode 100644
index d9313eb..0000000
--- a/contrib/groff/src/xditview/gray3.bm
+++ /dev/null
@@ -1,4 +0,0 @@
-#define gray3_width 3
-#define gray3_height 3
-static char gray3_bits[] = {
-   0x00, 0x03, 0x02};
diff --git a/contrib/groff/src/xditview/gray4.bm b/contrib/groff/src/xditview/gray4.bm
deleted file mode 100644
index dad142a..0000000
--- a/contrib/groff/src/xditview/gray4.bm
+++ /dev/null
@@ -1,4 +0,0 @@
-#define gray4_width 3
-#define gray4_height 3
-static char gray4_bits[] = {
-   0x00, 0x07, 0x02};
diff --git a/contrib/groff/src/xditview/gray5.bm b/contrib/groff/src/xditview/gray5.bm
deleted file mode 100644
index 5f57618..0000000
--- a/contrib/groff/src/xditview/gray5.bm
+++ /dev/null
@@ -1,4 +0,0 @@
-#define gray5_width 3
-#define gray5_height 3
-static char gray5_bits[] = {
-   0x04, 0x07, 0x02};
diff --git a/contrib/groff/src/xditview/gray6.bm b/contrib/groff/src/xditview/gray6.bm
deleted file mode 100644
index b76701d..0000000
--- a/contrib/groff/src/xditview/gray6.bm
+++ /dev/null
@@ -1,4 +0,0 @@
-#define gray6_width 3
-#define gray6_height 3
-static char gray6_bits[] = {
-   0x04, 0x07, 0x03};
diff --git a/contrib/groff/src/xditview/gray7.bm b/contrib/groff/src/xditview/gray7.bm
deleted file mode 100644
index ef47bc6..0000000
--- a/contrib/groff/src/xditview/gray7.bm
+++ /dev/null
@@ -1,4 +0,0 @@
-#define gray7_width 3
-#define gray7_height 3
-static char gray7_bits[] = {
-   0x05, 0x07, 0x03};
diff --git a/contrib/groff/src/xditview/gray8.bm b/contrib/groff/src/xditview/gray8.bm
deleted file mode 100644
index 12de7cb..0000000
--- a/contrib/groff/src/xditview/gray8.bm
+++ /dev/null
@@ -1,4 +0,0 @@
-#define gray8_width 3
-#define gray8_height 3
-static char gray8_bits[] = {
-   0x05, 0x07, 0x07};
diff --git a/contrib/groff/src/xditview/gxditview.man b/contrib/groff/src/xditview/gxditview.man
deleted file mode 100644
index 8680001..0000000
--- a/contrib/groff/src/xditview/gxditview.man
+++ /dev/null
@@ -1,249 +0,0 @@
-.TH GXDITVIEW 1 "Release 5" "X Version 11"
-.SH NAME
-gxditview \- display gtroff output files
-.SH SYNOPSIS
-.B gxditview
-.RI [\fB\- toolkitoption\  .\|.\|.\|]
-.RI [\fB\- option\  .\|.\|.\|]
-.RI [ filename ]
-.SH DESCRIPTION
-The
-.I gxditview 
-program displays gtroff output on an X display.
-It uses the standard X11 fonts,
-so it does not require access to the server machine for font loading.
-.PP
-If
-.I filename
-is
-.BR \- ,
-.I gxditview
-will read the standard input.
-.PP
-The left mouse button brings up a menu with the following entries:
-.TP 8
-.B "Next Page"
-Display the next page.
-.TP
-.B "Previous Page"
-Display the previous page.
-.TP
-.B "Select Page"
-Select a particular numbered page specified by a dialog box.
-.TP
-.B Print
-Print the gtroff output using a command specified by a dialog box.
-The default command initially displayed is controlled by the
-.B printCommand
-application resource, and by the
-.B \-printCommand
-option.
-.TP
-.B Open
-Open for display a new file specified by a dialog box.
-The file should contain gtroff output.
-If the filename starts with
-.B |
-it will be taken to be a command to read from.
-.TP
-.B Quit
-Exit from
-.IR gxditview .
-.PP
-The
-.BR n ,
-Space
-and Return keys are bound to the
-.B Next\ Page
-action.
-The
-.BR p ,
-BackSpace
-and
-Delete
-keys are bound to the
-.B Previous\ Page
-action.
-The
-.B q
-key is bound to the
-.B Quit
-action.
-The
-.B r
-key is bound to the
-.B Rerasterize
-action which rereads the current file, and redisplays the current page;
-if the current file is a command, the command will be reexecuted.
-.PP
-The
-.B paperlength
-and
-.B paperwidth
-commands in the DESC file specify the length and width in machine units
-of the virtual page displayed by
-.IR gxditview .
-.SH OPTIONS
-.I Gxditview
-accepts all of the standard X Toolkit command line options along with the 
-additional options listed below:
-.TP 8
-.B \-help
-This option indicates that a brief summary of the allowed options should be
-printed.
-.TP
-.B \-page
-This option specifies the page number of the document to be displayed.
-.TP
-.BI \-backingStore\  backing-store-type
-Redisplay of the gtroff output window can take upto a second or so,
-this option causes the server to save the window contents so that when
-it is scrolled around the viewport, the window is painted from
-contents saved in backing store.
-.I backing-store-type
-can be one of
-.BR Always ,
-.B WhenMapped
-or 
-.BR NotUseful .
-.TP
-.BI \-printCommand\  command
-The default command displayed in the dialog box for the
-.B Print
-menu entry will be
-.IR command .
-.TP
-.BI \-resolution\  res
-The gtroff output file will be displayed at a resolution of
-.I res
-dpi,
-unless the DESC file contains the
-.B X11
-command, in which case the device resolution will be used.
-This corresponds the
-.I Dvi
-widget's
-.B resolution
-resource.
-The default is 75.
-.TP
-.BI \-filename\  string
-The default filename displayed in the dialog box for the
-.B Open
-menu entry will be
-.IR string .
-This can be either a filename, or a command starting with
-.BR | .
-.PP
-The following standard X Toolkit command line arguments are commonly used with 
-.IR gxditview :
-.TP 8
-.BI \-bg\  color
-This option specifies the color to use for the background of the window.  
-The default is \fIwhite\fP.
-.TP
-.BI \-bd\  color
-This option specifies the color to use for the border of the window.
-The default is \fIblack\fP.
-.TP
-.BI \-bw\  number
-This option specifies the width in pixels of the border surrounding the window.
-.TP
-.BI \-fg\  color
-This option specifies the color to use for displaying text.  The default is 
-\fIblack\fP.
-.TP
-.BI \-fn\  font
-This option specifies the font to be used for displaying widget text.  The
-default is \fIfixed\fP.
-.TP
-.B \-rv
-This option indicates that reverse video should be simulated by swapping
-the foreground and background colors.
-.TP
-.BI \-geometry\  geometry
-This option specifies the preferred size and position of the window.
-.TP
-.BI \-display\  host : display
-This option specifies the X server to contact.
-.TP
-.BI \-xrm\  resourcestring
-This option specifies a resource string to be used.
-.SH X DEFAULTS
-This program uses the 
-.I Dvi
-widget in the X Toolkit.  It understands all of the core resource names and
-classes as well as:
-.PP
-.TP 8
-.BR width\  (class\  Width )
-Specifies the width of the window.
-.TP
-.BR height\  (class\  Height )
-Specifies the height of the window.
-.TP
-.BR foreground\  (class\  Foreground )
-Specifies the default foreground color.
-.TP
-.BR font\  (class\  Font )
-Specifies the font to be used for error messages.
-.TP
-.BR fontMap\  (class\  FontMap )
-Specifies the mapping from groff font names to X font names.  This
-must be a string containing a sequence of lines.  Each line contains
-two whitespace separated fields: first the groff font name, and
-secondly the X font name.  The default is
-.nf
-"\e
-TR	-adobe-times-medium-r-normal--*-100-*-*-*-*-iso8859-1\en\e
-TI	-adobe-times-medium-i-normal--*-100-*-*-*-*-iso8859-1\en\e
-TB	-adobe-times-bold-r-normal--*-100-*-*-*-*-iso8859-1\en\e
-TBI	-adobe-times-bold-i-normal--*-100-*-*-*-*-iso8859-1\en\e
-CR	-adobe-courier-medium-r-normal--*-100-*-*-*-*-iso8859-1\en\e
-CI	-adobe-courier-medium-o-normal--*-100-*-*-*-*-iso8859-1\en\e
-CB	-adobe-courier-bold-r-normal--*-100-*-*-*-*-iso8859-1\en\e
-CBI	-adobe-courier-bold-o-normal--*-100-*-*-*-*-iso8859-1\en\e
-HR	-adobe-helvetica-medium-r-normal--*-100-*-*-*-*-iso8859-1\en\e
-HI	-adobe-helvetica-medium-o-normal--*-100-*-*-*-*-iso8859-1\en\e
-HB	-adobe-helvetica-bold-r-normal--*-100-*-*-*-*-iso8859-1\en\e
-HBI	-adobe-helvetica-bold-o-normal--*-100-*-*-*-*-iso8859-1\en\e
-NR	-adobe-new century schoolbook-medium-r-normal--*-100-*-*-*-*-iso8859-1\en\e
-NI	-adobe-new century schoolbook-medium-i-normal--*-100-*-*-*-*-iso8859-1\en\e
-NB	-adobe-new century schoolbook-bold-r-normal--*-100-*-*-*-*-iso8859-1\en\e
-NBI	-adobe-new century schoolbook-bold-i-normal--*-100-*-*-*-*-iso8859-1\en\e
-S	-adobe-symbol-medium-r-normal--*-100-*-*-*-*-adobe-fontspecific\en\e
-SS	-adobe-symbol-medium-r-normal--*-100-*-*-*-*-adobe-fontspecific\en\e
-"
-.fi
-
-.SH "SEE ALSO"
-.IR X (1),
-.IR xrdb (1),
-.IR gtroff (1),
-.IR groff (1)
-.SH ORIGIN
-This program is derived from xditview;
-portions of xditview originated in xtroff which was derived
-from suntroff.  
-.SH COPYRIGHT
-Copyright 1989, Massachusetts Institute of Technology.
-.br
-See
-.IR X (1)
-for a full statement of rights and permissions.
-.SH AUTHORS
-Keith Packard (MIT X Consortium)
-.br
-Richard L. Hyde (Purdue)
-.br
-David Slattengren (Berkeley)
-.br
-Malcolm Slaney (Schlumberger Palo Alto Research)
-.br
-Mark Moraes (University of Toronto)
-.br
-James Clark
-.
-.\" Local Variables:
-.\" mode: nroff
-.\" End:
diff --git a/contrib/groff/src/xditview/lex.c b/contrib/groff/src/xditview/lex.c
deleted file mode 100644
index 32831bd..0000000
--- a/contrib/groff/src/xditview/lex.c
+++ /dev/null
@@ -1,103 +0,0 @@
-#include <X11/Xos.h>
-#include <X11/IntrinsicP.h>
-#include <X11/StringDefs.h>
-#include <stdio.h>
-#include "DviP.h"
-
-DviGetAndPut(dw, cp)
-    DviWidget	dw;
-    int		*cp;
-{
-	if (dw->dvi.ungot) {
-		dw->dvi.ungot =	0;
-		*cp = getc (dw->dvi.file);
-	}
-	else {
-		*cp = getc (dw->dvi.file);
-		if (*cp != EOF)
-			putc (*cp, dw->dvi.tmpFile);
-	}
-	return *cp;
-}
-
-char *
-GetLine(dw, Buffer, Length)
-	DviWidget	dw;
-	char	*Buffer;
-	int	Length;
-{
-	int 	i = 0, c;
-	
-	Length--;		     /* Save room for final '\0' */
-	
-	while (DviGetC (dw, &c) != EOF) {
-		if (Buffer && i < Length)
-			Buffer[i++] = c;
-		if (c == '\n') {
-			DviUngetC(dw, c);
-			break;
-		}
-	}
-	if (Buffer)
-		Buffer[i] = '\0';
-	return Buffer;
-} 
-
-char *
-GetWord(dw, Buffer, Length)
-	DviWidget	dw;
-	char	*Buffer;
-	int	Length;
-{
-	int 	i = 0, c;
-	
-	Length--;			    /* Save room for final '\0' */
-	while (DviGetC(dw, &c) == ' ' || c == '\n')
-		;
-	while (c != EOF) {
-		if (Buffer && i < Length)
-			Buffer[i++] = c;
-		if (DviGetC(dw, &c) == ' ' || c == '\n') {
-			DviUngetC(dw, c);
-			break;
-		}
-	}
-	if (Buffer)
-		Buffer[i] = '\0';
-	return Buffer;
-} 
-
-GetNumber(dw)
-	DviWidget	dw;
-{
-	int	i = 0,  c;
-	int	negative = 0;
-
-	while (DviGetC(dw, &c) == ' ' || c == '\n')
-		;
-	if (c == '-') {
-		negative = 1;
-		DviGetC(dw, &c);
-	}
-
-	for (; c >= '0' && c <= '9'; DviGetC(dw, &c)) {
-		if (negative)
-			i = i*10 - (c - '0');
-		else
-			i = i*10 + c - '0';
-	}
-	if (c != EOF)
-		DviUngetC(dw, c);
-	return i;
-}
-	
-/*
-Local Variables:
-c-indent-level: 8
-c-continued-statement-offset: 8
-c-brace-offset: -8
-c-argdecl-indent: 8
-c-label-offset: -8
-c-tab-always-indent: nil
-End:
-*/
diff --git a/contrib/groff/src/xditview/page.c b/contrib/groff/src/xditview/page.c
deleted file mode 100644
index 9284199..0000000
--- a/contrib/groff/src/xditview/page.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * page.c
- *
- * map page numbers to file position
- */
-
-#include <X11/Xos.h>
-#include <X11/IntrinsicP.h>
-#include <X11/StringDefs.h>
-#include <stdio.h>
-#include <ctype.h>
-#include "DviP.h"
-
-#ifdef X_NOT_STDC_ENV
-extern long	ftell();
-#endif
-
-static DviFileMap *
-MapPageNumberToFileMap (dw, number)
-	DviWidget	dw;
-	int		number;
-{
-	DviFileMap	*m;
-
-	for (m = dw->dvi.file_map; m; m=m->next)
-		if (m->page_number == number)
-			break;
-	return m;
-}
-
-DestroyFileMap (m)
-	DviFileMap	*m;
-{
-	DviFileMap	*next;
-
-	for (; m; m = next) {
-		next = m->next;
-		XtFree ((char *) m);
-	}
-}
-
-ForgetPagePositions (dw)
-	DviWidget	dw;
-{
-	DestroyFileMap (dw->dvi.file_map);
-	dw->dvi.file_map = 0;
-}
-
-RememberPagePosition(dw, number)
-	DviWidget	dw;
-	int		number;
-{
-	DviFileMap	*m;
-
-	if (!(m = MapPageNumberToFileMap (dw, number))) {
-		m = (DviFileMap *) XtMalloc (sizeof *m);
-		m->page_number = number;
-		m->next = dw->dvi.file_map;
-		dw->dvi.file_map = m;
-	}
-	if (dw->dvi.tmpFile)
-		m->position = ftell (dw->dvi.tmpFile);
-	else
-		m->position = ftell (dw->dvi.file);
-}
-
-SearchPagePosition (dw, number)
-	DviWidget	dw;
-	int		number;
-{
-	DviFileMap	*m;
-
-	if (!(m = MapPageNumberToFileMap (dw, number)))
-		return -1;
-	return m->position;
-}
-
-FileSeek(dw, position)
-DviWidget	dw;
-long		position;
-{
-	if (dw->dvi.tmpFile) {
-		dw->dvi.readingTmp = 1;
-		fseek (dw->dvi.tmpFile, position, 0);
-	} else
-		fseek (dw->dvi.file, position, 0);
-}
-
diff --git a/contrib/groff/src/xditview/parse.c b/contrib/groff/src/xditview/parse.c
deleted file mode 100644
index d763268..0000000
--- a/contrib/groff/src/xditview/parse.c
+++ /dev/null
@@ -1,340 +0,0 @@
-/*
- * parse.c
- *
- * parse dvi input
- */
-
-#include <X11/Xos.h>
-#include <X11/IntrinsicP.h>
-#include <X11/StringDefs.h>
-#include <stdio.h>
-#include <ctype.h>
-#include "DviP.h"
-
-static int StopSeen = 0;
-static ParseDrawFunction(), ParseDeviceControl();
-static push_env(), pop_env();
-
-#define HorizontalMove(dw, delta)	((dw)->dvi.state->x += (delta))
-
-
-ParseInput(dw)
-    register DviWidget	dw;
-{
-	int		n, k;
-	int		c;
-	char		Buffer[BUFSIZ];
-	int		NextPage;
-	int		otherc;
-
-	StopSeen = 0;
-
-	/*
-	 * make sure some state exists
-	 */
-
-	if (!dw->dvi.state)
-	    push_env (dw);
-	for (;;) {
-		switch (DviGetC(dw, &c)) {
-		case '\n':	
-			break;
-		case ' ':	/* when input is text */
-		case 0:		/* occasional noise creeps in */
-			break;
-		case '{':	/* push down current environment */
-			push_env(dw);
-			break;
-		case '}':
-			pop_env(dw);
-			break;
-		/*
-		 * two motion digits plus a character
-		 */
-		case '0': case '1': case '2': case '3': case '4':
-		case '5': case '6': case '7': case '8': case '9':
-			HorizontalMove(dw, (c-'0')*10 +
-					   DviGetC(dw,&otherc)-'0');
-			/* fall through */
-		case 'c':	/* single ascii character */
-			DviGetC(dw,&c);
-		    	if (c == ' ')
-			    break;
-			Buffer[0] = c;
-			Buffer[1] = '\0';
-			(void) PutCharacter (dw, Buffer);
-			break;
-		case 'C':
-			GetWord (dw, Buffer, BUFSIZ);
-			(void) PutCharacter (dw, Buffer);
-			break;
-		case 't':
-			Buffer[1] = '\0';
-			while (DviGetC (dw, &c) != EOF
-			       && c != ' ' && c != '\n') {
-				Buffer[0] = c;
-				HorizontalMove (dw, PutCharacter (dw, Buffer));
-			}
-			break;
-		case 'u':
-			n = GetNumber(dw);
-			Buffer[1] = '\0';
-			while (DviGetC (dw, &c) == ' ')
-				;
-			while (c != EOF && c != ' ' && c != '\n') {
-				Buffer[0] = c;
-				HorizontalMove (dw,
-						PutCharacter (dw, Buffer) + n);
-				DviGetC (dw, &c);
-			}
-			break;
-
-		case 'D':	/* draw function */
-			(void) GetLine(dw, Buffer, BUFSIZ);
-			if (dw->dvi.display_enable)
-				ParseDrawFunction(dw, Buffer);
-			break;
-		case 's':	/* ignore fractional sizes */
-			n = GetNumber(dw);
-			dw->dvi.state->font_size = n;
-			break;
-		case 'f':
-			n = GetNumber(dw);
-			dw->dvi.state->font_number = n;
-			break;
-		case 'H':	/* absolute horizontal motion */
-			k = GetNumber(dw);
-			HorizontalGoto(dw, k);
-			break;
-		case 'h':	/* relative horizontal motion */
-			k = GetNumber(dw);
-			HorizontalMove(dw, k);
-			break;
-		case 'w':	/* word space */
-			Word (dw);
-			break;
-		case 'V':
-			n = GetNumber(dw);
-			VerticalGoto(dw, n);
-			break;
-		case 'v':
-			n = GetNumber(dw);
-			VerticalMove(dw, n);
-			break;
-		case 'P':	/* new spread */
-			break;
-		case 'p':	/* new page */
-			(void) GetNumber(dw);
-			NextPage = dw->dvi.current_page + 1;
-			RememberPagePosition(dw, NextPage);
-			FlushCharCache (dw);
-			return(NextPage);
-		case 'N':
-			n = GetNumber(dw);
-			PutNumberedCharacter (dw, n);
-			break;
-		case 'n':	/* end of line */
-			GetNumber(dw);
-			GetNumber(dw);
-			Newline (dw);
-			HorizontalGoto(dw, 0);
-			break;
-		case 'F':       /* input files */
-		case '+':	/* continuation of X device control */
-		case 'm':	/* color */
-		case '#':	/* comment */
-			GetLine(dw, NULL, 0);
-			break;
-		case 'x':	/* device control */
-			ParseDeviceControl(dw);
-			break;
-		case EOF:
-			dw->dvi.last_page = dw->dvi.current_page;
-			FlushCharCache (dw);
-			return dw->dvi.current_page;
-		default:
-			break;
-		}
-	}
-}
-
-static
-push_env(dw)
-	DviWidget	dw;
-{
-	DviState	*new;
-
-	new = (DviState *) XtMalloc (sizeof (*new));
-	if (dw->dvi.state)
-		*new = *(dw->dvi.state);
-	else {
-		new->font_size = 10;
-		new->font_number = 1;
-		new->x = 0;
-		new->y = 0;
-	}
-	new->next = dw->dvi.state;
-	dw->dvi.state = new;
-}
-
-static
-pop_env(dw)
-	DviWidget	dw;
-{
-	DviState	*old;
-
-	old = dw->dvi.state;
-	dw->dvi.state = old->next;
-	XtFree ((char *) old);
-}
-
-static
-InitTypesetter (dw)
-	DviWidget	dw;
-{
-	while (dw->dvi.state)
-		pop_env (dw);
-	push_env (dw);
-	FlushCharCache (dw);
-}
-
-#define DRAW_ARGS_MAX 128
-
-static
-ParseDrawFunction(dw, buf)
-DviWidget	dw;
-char		*buf;
-{
-	int v[DRAW_ARGS_MAX];
-	int i, no_move = 0;
-	char *ptr;
-	
-	v[0] = v[1] = v[2] = v[3] = 0;
-	
-	if (buf[0] == '\0')
-		return;
-	ptr = buf+1;
-	
-	for (i = 0; i < DRAW_ARGS_MAX; i++) {
-		if (sscanf(ptr, "%d", v + i) != 1)
-			break;
-		while (*ptr == ' ')
-			ptr++;
-		while (*ptr != '\0' && *ptr != ' ')
-			ptr++;
-	}
-	
-	switch (buf[0]) {
-	case 'l':				/* draw a line */
-		DrawLine(dw, v[0], v[1]);
-		break;
-	case 'c':				/* circle */
-		DrawCircle(dw, v[0]);
-		break;
-	case 'C':
-		DrawFilledCircle(dw, v[0]);
-		break;
-	case 'e':				/* ellipse */
-		DrawEllipse(dw, v[0], v[1]);
-		break;
-	case 'E':
-		DrawFilledEllipse(dw, v[0], v[1]);
-		break;
-	case 'a':				/* arc */
-		DrawArc(dw, v[0], v[1], v[2], v[3]);
-		break;
-	case 'p':
-		DrawPolygon(dw, v, i);
-		break;
-	case 'P':
-		DrawFilledPolygon(dw, v, i);
-		break;
-	case '~':				/* wiggly line */
-		DrawSpline(dw, v, i);
-		break;
-	case 't':
-		dw->dvi.line_thickness = v[0];
-		break;
-	case 'f':
-		if (i > 0 && v[0] >= 0 && v[0] <= DVI_FILL_MAX)
-			dw->dvi.fill = v[0];
-		no_move = 1;
-		break;
-	default:
-#if 0
-		warning("unknown drawing function %s", buf);
-#endif
-		no_move = 1;
-		break;
-	}
-	
-	if (!no_move) {
-		if (buf[0] == 'e') {
-			if (i > 0)
-				dw->dvi.state->x += v[0];
-		}
-		else {
-			while (--i >= 0) {
-				if (i & 1)
-					dw->dvi.state->y += v[i];
-				else
-					dw->dvi.state->x += v[i];
-			}
-		}
-	}
-} 
-
-static
-ParseDeviceControl(dw)				/* Parse the x commands */
-	DviWidget	dw;
-{
-        char str[20], str1[50];
-	int c, n;
-	extern int LastPage, CurrentPage;
-
-	GetWord (dw, str, 20);
-	switch (str[0]) {			/* crude for now */
-	case 'T':				/* output device */
-		GetWord (dw, str, 20);
-		SetDevice (dw, str);
-		break;
-	case 'i':				/* initialize */
-		InitTypesetter (dw);
-		break;
-	case 't':				/* trailer */
-		break;
-	case 'p':				/* pause -- can restart */
-		break;
-	case 's':				/* stop */
-		StopSeen = 1;
-		return;
-	case 'r':				/* resolution when prepared */
-		break;
-	case 'f':				/* font used */
-		n = GetNumber (dw);
-		GetWord (dw, str, 20);
-		GetLine (dw, str1, 50);
-		SetFontPosition (dw, n, str, str1);
-		break;
-	case 'H':				/* char height */
-		break;
-	case 'S':				/* slant */
-		break;
-	}
-	while (DviGetC (dw, &c) != '\n')	/* skip rest of input line */
-		if (c == EOF)
-			return;
-	return;
-}
-
-
-/*
-Local Variables:
-c-indent-level: 8
-c-continued-statement-offset: 8
-c-brace-offset: -8
-c-argdecl-indent: 8
-c-label-offset: -8
-c-tab-always-indent: nil
-End:
-*/
diff --git a/contrib/groff/src/xditview/xdit.bm b/contrib/groff/src/xditview/xdit.bm
deleted file mode 100644
index 67b9c8a..0000000
--- a/contrib/groff/src/xditview/xdit.bm
+++ /dev/null
@@ -1,14 +0,0 @@
-#define xdit_width 32
-#define xdit_height 32
-static char xdit_bits[] = {
-   0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0x03, 0x02, 0x00, 0x00, 0x02,
-   0x8a, 0xa2, 0xfc, 0x03, 0x52, 0x14, 0x03, 0x04, 0x02, 0x80, 0x00, 0x08,
-   0x52, 0x54, 0x00, 0x10, 0x8a, 0x22, 0x8f, 0x23, 0x02, 0x20, 0x06, 0x21,
-   0x8a, 0x12, 0x8c, 0x40, 0x52, 0x14, 0x8c, 0x40, 0x02, 0x10, 0x58, 0x40,
-   0x52, 0x14, 0x30, 0x40, 0x8a, 0x12, 0x30, 0x40, 0x02, 0x10, 0x70, 0x40,
-   0x8a, 0x12, 0xc8, 0x40, 0x52, 0x24, 0xc4, 0xe0, 0x02, 0x20, 0x84, 0xe1,
-   0x52, 0x54, 0xce, 0xf3, 0x8a, 0xa2, 0x00, 0xf8, 0x02, 0x00, 0x03, 0xfc,
-   0x8a, 0x22, 0xfc, 0xf3, 0x52, 0x14, 0x00, 0xc2, 0x02, 0x00, 0x00, 0x02,
-   0x52, 0x14, 0x45, 0x02, 0x8a, 0xa2, 0x28, 0x02, 0x02, 0x00, 0x00, 0x02,
-   0x02, 0x00, 0x00, 0x02, 0xfe, 0xff, 0xff, 0x03, 0x00, 0x00, 0x00, 0x00,
-   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
diff --git a/contrib/groff/src/xditview/xdit_mask.bm b/contrib/groff/src/xditview/xdit_mask.bm
deleted file mode 100644
index f34a4f8..0000000
--- a/contrib/groff/src/xditview/xdit_mask.bm
+++ /dev/null
@@ -1,14 +0,0 @@
-#define xdit_mask_width 32
-#define xdit_mask_height 32
-static char xdit_mask_bits[] = {
-   0xff, 0xff, 0xff, 0x07, 0xff, 0xff, 0xff, 0x07, 0xff, 0xff, 0xff, 0x07,
-   0xff, 0xff, 0xff, 0x07, 0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0x1f,
-   0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f,
-   0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-   0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-   0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-   0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-   0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf7, 0xff, 0xff, 0xff, 0xc7,
-   0xff, 0xff, 0xff, 0x07, 0xff, 0xff, 0xff, 0x07, 0xff, 0xff, 0xff, 0x07,
-   0xff, 0xff, 0xff, 0x07, 0xff, 0xff, 0xff, 0x07, 0xff, 0xff, 0xff, 0x07,
-   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
diff --git a/contrib/groff/src/xditview/xditview.c b/contrib/groff/src/xditview/xditview.c
deleted file mode 100644
index 75b7fd1..0000000
--- a/contrib/groff/src/xditview/xditview.c
+++ /dev/null
@@ -1,596 +0,0 @@
-/*
- * Copyright 1991 Massachusetts Institute of Technology
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of M.I.T. not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission.  M.I.T. makes no representations about the
- * suitability of this software for any purpose.  It is provided "as is"
- * without express or implied warranty.
- *
- * M.I.T. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL M.I.T.
- * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- */
-/*
- * xditview -- 
- *
- *   Display ditroff output in an X window
- */
-
-#ifndef SABER
-#ifndef lint
-static char rcsid[] = "$XConsortium: xditview.c,v 1.17 89/12/10 17:05:08 rws Exp $";
-#endif /* lint */
-#endif /* SABER */
-
-#include <X11/Xatom.h>
-#include <X11/Xlib.h>
-#include <X11/Xos.h>
-#include <X11/Intrinsic.h>
-#include <X11/StringDefs.h>
-#include <X11/Shell.h>
-#include <X11/Xaw/Paned.h>
-#include <X11/Xaw/Viewport.h>
-#include <X11/Xaw/Box.h>
-#include <X11/Xaw/Command.h>
-#include <X11/Xaw/Dialog.h>
-#include <X11/Xaw/Label.h>
-#include <X11/Xaw/SimpleMenu.h>
-#include <X11/Xaw/SmeBSB.h>
-
-#include <signal.h>
-
-#include "Dvi.h"
-
-#include "xdit.bm"
-#include "xdit_mask.bm"
-#include "stdio.h"
-
-extern FILE *popen();
-extern void exit();
-
-static String fallback_resources[] = {
-#include "GXditview-ad.h"
-    NULL
-};
-
-static struct app_resources {
-    char *print_command;
-    char *filename;
-} app_resources;
-
-#define offset(field) XtOffset(struct app_resources *, field)
-
-/* Application resources. */
-
-static XtResource resources[] = {
-  {"printCommand", "PrintCommand", XtRString, sizeof(char*),
-       offset(print_command), XtRString, NULL},
-  {"filename", "Filename", XtRString, sizeof(char*),
-       offset(filename), XtRString, NULL},
-};
-
-#undef offset
-
-/* Command line options table.  Only resources are entered here...there is a
-   pass over the remaining options after XtParseCommand is let loose. */
-
-static XrmOptionDescRec options[] = {
-{"-page",	    "*dvi.pageNumber",	    XrmoptionSepArg,	NULL},
-{"-backingStore",   "*dvi.backingStore",    XrmoptionSepArg,	NULL},
-{"-resolution",	    "*dvi.resolution",      XrmoptionSepArg,	NULL},
-{"-printCommand",   ".printCommand",        XrmoptionSepArg,	NULL},
-{"-filename",       ".filename",            XrmoptionSepArg,	NULL},
-{"-noPolyText",	    "*dvi.noPolyText",	    XrmoptionNoArg,	"TRUE"},
-};
-
-static char current_print_command[1024];
-
-static char	current_file_name[1024];
-static FILE	*current_file;
-
-/*
- * Report the syntax for calling xditview.
- */
-
-static
-Syntax(call)
-	char *call;
-{
-	(void) printf ("Usage: %s [-fg <color>] [-bg <color>]\n", call);
-	(void) printf ("       [-bd <color>] [-bw <pixels>] [-help]\n");
-	(void) printf ("       [-display displayname] [-geometry geom]\n");
-	(void) printf ("       [-page <page-number>] [-backing <backing-store>]\n");
-	(void) printf ("       [-resolution <res>] [-print <command>]\n");
-	(void) printf ("       [-filename <file>] [filename]\n\n");
-	exit(1);
-}
-
-static void	NewFile (), SetPageNumber ();
-static Widget	toplevel, paned, viewport, dvi;
-static Widget	page;
-static Widget	simpleMenu;
-
-static void	NextPage(), PreviousPage(), SelectPage(), OpenFile(), Quit();
-static void	Print();
-
-static struct menuEntry {
-    char    *name;
-    void    (*function)();
-} menuEntries[] = {
-    "nextPage",	    NextPage,
-    "previousPage", PreviousPage,
-    "selectPage",   SelectPage,
-    "print",	    Print,
-    "openFile",	    OpenFile,
-    "quit",	    Quit,
-};
-
-static void	NextPageAction(), PreviousPageAction(), SelectPageAction();
-static void	OpenFileAction(), QuitAction();
-static void	AcceptAction(), CancelAction();
-static void	PrintAction();
-static void	RerasterizeAction();
-
-XtActionsRec xditview_actions[] = {
-    "NextPage",	    NextPageAction,
-    "PreviousPage", PreviousPageAction,
-    "SelectPage",   SelectPageAction,
-    "Print",	    PrintAction,
-    "OpenFile",	    OpenFileAction,
-    "Rerasterize",  RerasterizeAction,
-    "Quit",	    QuitAction,
-    "Accept",	    AcceptAction,
-    "Cancel",	    CancelAction,
-};
-
-#define MenuNextPage		0
-#define MenuPreviousPage	1
-#define MenuSelectPage		2
-#define MenuPrint		3
-#define MenuOpenFile		4
-#define	MenuQuit		5
-
-static char	pageLabel[256] = "Page <none>";
-
-int main(argc, argv)
-    int argc;
-    char **argv;
-{
-    char	    *file_name = 0;
-    int		    i;
-    static Arg	    labelArgs[] = {
-			{XtNlabel, (XtArgVal) pageLabel},
-    };
-    XtAppContext    xtcontext;
-    Arg		    topLevelArgs[2];
-    Widget          entry;
-    Arg		    pageNumberArgs[1];
-    int		    page_number;
-
-    toplevel = XtAppInitialize(&xtcontext, "GXditview",
-			    options, XtNumber (options),
- 			    &argc, argv, fallback_resources, NULL, 0);
-    if (argc > 2
-	|| (argc == 2 && (!strcmp(argv[1], "-help")
-			  || !strcmp(argv[1], "--help"))))
-	Syntax(argv[0]);
-
-    XtGetApplicationResources(toplevel, (XtPointer)&app_resources,
-			      resources, XtNumber(resources),
-			      NULL, (Cardinal) 0);
-    if (app_resources.print_command)
-	strcpy(current_print_command, app_resources.print_command);
-
-    XtAppAddActions(xtcontext, xditview_actions, XtNumber (xditview_actions));
-
-    XtSetArg (topLevelArgs[0], XtNiconPixmap,
-	      XCreateBitmapFromData (XtDisplay (toplevel),
-				     XtScreen(toplevel)->root,
-				     xdit_bits, xdit_width, xdit_height));
-				    
-    XtSetArg (topLevelArgs[1], XtNiconMask,
-	      XCreateBitmapFromData (XtDisplay (toplevel),
-				     XtScreen(toplevel)->root,
-				     xdit_mask_bits, 
-				     xdit_mask_width, xdit_mask_height));
-    XtSetValues (toplevel, topLevelArgs, 2);
-    if (argc > 1)
-	file_name = argv[1];
-
-    /*
-     * create the menu and insert the entries
-     */
-    simpleMenu = XtCreatePopupShell ("menu", simpleMenuWidgetClass, toplevel,
-				    NULL, 0);
-    for (i = 0; i < XtNumber (menuEntries); i++) {
-	entry = XtCreateManagedWidget(menuEntries[i].name, 
-				      smeBSBObjectClass, simpleMenu,
-				      NULL, (Cardinal) 0);
-	XtAddCallback(entry, XtNcallback, menuEntries[i].function, NULL);
-    }
-
-    paned = XtCreateManagedWidget("paned", panedWidgetClass, toplevel,
-				    NULL, (Cardinal) 0);
-    viewport = XtCreateManagedWidget("viewport", viewportWidgetClass, paned,
-				     NULL, (Cardinal) 0);
-    dvi = XtCreateManagedWidget ("dvi", dviWidgetClass, viewport, NULL, 0);
-    page = XtCreateManagedWidget ("label", labelWidgetClass, paned,
-					labelArgs, XtNumber (labelArgs));
-    XtSetArg (pageNumberArgs[0], XtNpageNumber, &page_number);
-    XtGetValues (dvi, pageNumberArgs, 1);
-    if (file_name)
-	NewFile (file_name);
-    /* NewFile modifies current_file_name, so do this here. */
-    if (app_resources.filename)
-	strcpy(current_file_name, app_resources.filename);
-    XtRealizeWidget (toplevel);
-    if (file_name)
-	SetPageNumber (page_number);
-    XtAppMainLoop(xtcontext);
-    return 0;
-}
-
-static void
-SetPageNumber (number)
-{
-    Arg	arg[2];
-    int	actual_number, last_page;
-
-    XtSetArg (arg[0], XtNpageNumber, number);
-    XtSetValues (dvi, arg, 1);
-    XtSetArg (arg[0], XtNpageNumber, &actual_number);
-    XtSetArg (arg[1], XtNlastPageNumber, &last_page);
-    XtGetValues (dvi, arg, 2);
-    if (actual_number == 0)
-	sprintf (pageLabel, "Page <none>");
-    else if (last_page > 0)
-	sprintf (pageLabel, "Page %d of %d", actual_number, last_page);
-    else
-	sprintf (pageLabel, "Page %d", actual_number);
-    XtSetArg (arg[0], XtNlabel, pageLabel);
-    XtSetValues (page, arg, 1);
-}
-
-static void
-SelectPageNumber (number_string)
-char	*number_string;
-{
-	SetPageNumber (atoi(number_string));
-}
-
-static int hadFile = 0;
-
-static void
-NewFile (name)
-char	*name;
-{
-    Arg	    arg[2];
-    char    *n;
-    FILE    *new_file;
-    Boolean seek = 0;
-
-    if (current_file) {
-	if (!strcmp (current_file_name, "-"))
-	    ;
-	else if (current_file_name[0] == '|')
-	    pclose (current_file);
-	else
-	    fclose (current_file);
-    }
-    if (!strcmp (name, "-"))
-	new_file = stdin;
-    else if (name[0] == '|')
-	new_file = popen (name+1, "r");
-    else {
-	new_file = fopen (name, "r");
-	seek = 1;
-    }
-    if (!new_file) {
-	/* XXX display error message */
-	return;
-    }
-    XtSetArg (arg[0], XtNfile, new_file);
-    XtSetArg (arg[1], XtNseek, seek);
-    XtSetValues (dvi, arg, 2);
-    if (hadFile || name[0] != '-' || name[1] != '\0') {
-	XtSetArg (arg[0], XtNtitle, name);
-	if (name[0] != '/' && (n = strrchr (name, '/')))
-	    n = n + 1;
-	else
-	    n = name;
-	XtSetArg (arg[1], XtNiconName, n);
-	XtSetValues (toplevel, arg, 2);
-    }
-    hadFile = 1;
-    SelectPageNumber ("1");
-    strcpy (current_file_name, name);
-    current_file = new_file;
-}
-
-static char fileBuf[1024];
-
-ResetMenuEntry (entry)
-    Widget  entry;
-{
-    Arg	arg[1];
-
-    XtSetArg (arg[0], XtNpopupOnEntry, entry);
-    XtSetValues (XtParent(entry) , arg, (Cardinal) 1);
-}
-
-/*ARGSUSED*/
-
-static void
-NextPage (entry, name, data)
-    Widget  entry;
-    caddr_t name, data;
-{
-    NextPageAction();
-    ResetMenuEntry (entry);
-}
-
-static void
-NextPageAction ()
-{
-    Arg	args[1];
-    int	number;
-
-    XtSetArg (args[0], XtNpageNumber, &number);
-    XtGetValues (dvi, args, 1);
-    SetPageNumber (number+1);
-}
-
-/*ARGSUSED*/
-
-static void
-PreviousPage (entry, name, data)
-    Widget  entry;
-    caddr_t name, data;
-{
-    PreviousPageAction ();
-    ResetMenuEntry (entry);
-}
-
-static void
-PreviousPageAction ()
-{
-    Arg	args[1];
-    int	number;
-
-    XtSetArg (args[0], XtNpageNumber, &number);
-    XtGetValues (dvi, args, 1);
-    SetPageNumber (number-1);
-}
-
-/* ARGSUSED */
-
-static void
-SelectPage (entry, name, data)
-    Widget  entry;
-    caddr_t name, data;
-{
-    SelectPageAction ();
-    ResetMenuEntry (entry);
-}
-
-static void
-SelectPageAction ()
-{
-    MakePrompt (toplevel, "Page number", SelectPageNumber, "");
-}
-
-
-static void
-DoPrint (name)
-    char *name;
-{
-    FILE *print_file;
-#ifdef SIGNALRETURNSINT
-    int (*handler)();
-#else
-    void (*handler)();
-#endif
-    /* Avoid dieing because of an invalid command. */
-    handler = signal(SIGPIPE, SIG_IGN);
-
-    print_file = popen(name, "w");
-    if (!print_file)
-	/* XXX print error message */
-	return;
-    DviSaveToFile(dvi, print_file);
-    pclose(print_file);
-    signal(SIGPIPE, handler);
-    strcpy(current_print_command, name);
-}
-
-static void
-RerasterizeAction()
-{
-    Arg	args[1];
-    int	number;
-
-    if (current_file_name[0] == 0) {
-	/* XXX display an error message */
-	return;
-    } 
-    XtSetArg (args[0], XtNpageNumber, &number);
-    XtGetValues (dvi, args, 1);
-    NewFile(current_file_name);
-    SetPageNumber (number);
-}
-
-/* ARGSUSED */
-
-static void
-Print (entry, name, data)
-    Widget  entry;
-    caddr_t name, data;
-{
-    PrintAction ();
-    ResetMenuEntry (entry);
-}
-
-static void
-PrintAction ()
-{
-    if (current_print_command[0])
-	strcpy (fileBuf, current_print_command);
-    else
-	fileBuf[0] = '\0';
-    MakePrompt (toplevel, "Print command:", DoPrint, fileBuf);
-}
-
-
-/* ARGSUSED */
-
-static void
-OpenFile (entry, name, data)
-    Widget  entry;
-    caddr_t name, data;
-{
-    OpenFileAction ();
-    ResetMenuEntry (entry);
-}
-
-static void
-OpenFileAction ()
-{
-    if (current_file_name[0])
-	strcpy (fileBuf, current_file_name);
-    else
-	fileBuf[0] = '\0';
-    MakePrompt (toplevel, "File to open:", NewFile, fileBuf);
-}
-
-/* ARGSUSED */
-
-static void
-Quit (entry, closure, data)
-    Widget  entry;
-    caddr_t closure, data;
-{
-    QuitAction ();
-}
-
-static void
-QuitAction ()
-{
-    exit (0);
-}
-
-Widget	promptShell, promptDialog;
-void	(*promptfunction)();
-
-/* ARGSUSED */
-static
-void CancelAction (widget, event, params, num_params)
-    Widget	widget;
-    XEvent	*event;
-    String	*params;
-    Cardinal	*num_params;
-{
-    if (promptShell) {
-	XtSetKeyboardFocus(toplevel, (Widget) None);
-	XtDestroyWidget(promptShell);
-	promptShell = (Widget) 0;
-    }
-}
-
-static
-void AcceptAction (widget, event, params, num_params)
-    Widget	widget;
-    XEvent	*event;
-    String	*params;
-    Cardinal	*num_params;
-{
-    (*promptfunction)(XawDialogGetValueString(promptDialog));
-    CancelAction (widget, event, params, num_params);
-}
-
-MakePrompt(centerw, prompt, func, def)
-Widget	centerw;
-char *prompt;
-void (*func)();
-char	*def;
-{
-    static Arg dialogArgs[] = {
-	{XtNlabel, 0},
-	{XtNvalue, 0},
-    };
-    Arg valueArgs[1];
-    Arg centerArgs[2];
-    Position	source_x, source_y;
-    Position	dest_x, dest_y;
-    Dimension center_width, center_height;
-    Dimension prompt_width, prompt_height;
-    Widget  valueWidget;
-    
-    CancelAction ((Widget)NULL, (XEvent *) 0, (String *) 0, (Cardinal *) 0);
-    promptShell = XtCreatePopupShell ("promptShell", transientShellWidgetClass,
-				      toplevel, NULL, (Cardinal) 0);
-    dialogArgs[0].value = (XtArgVal)prompt;
-    dialogArgs[1].value = (XtArgVal)def;
-    promptDialog = XtCreateManagedWidget( "promptDialog", dialogWidgetClass,
-		    promptShell, dialogArgs, XtNumber (dialogArgs));
-    XawDialogAddButton(promptDialog, "accept", NULL, (caddr_t) 0);
-    XawDialogAddButton(promptDialog, "cancel", NULL, (caddr_t) 0);
-    valueWidget = XtNameToWidget (promptDialog, "value");
-    if (valueWidget) {
-    	XtSetArg (valueArgs[0], XtNresizable, TRUE);
-    	XtSetValues (valueWidget, valueArgs, 1);
-	/*
-	 * as resizable isn't set until just above, the
-	 * default value will be displayed incorrectly.
-	 * rectify the situation by resetting the values
-	 */
-        XtSetValues (promptDialog, dialogArgs, XtNumber (dialogArgs));
-    }
-    XtSetKeyboardFocus (promptDialog, valueWidget);
-    XtSetKeyboardFocus (toplevel, valueWidget);
-    XtRealizeWidget (promptShell);
-    /*
-     * place the widget in the center of the "parent"
-     */
-    XtSetArg (centerArgs[0], XtNwidth, &center_width);
-    XtSetArg (centerArgs[1], XtNheight, &center_height);
-    XtGetValues (centerw, centerArgs, 2);
-    XtSetArg (centerArgs[0], XtNwidth, &prompt_width);
-    XtSetArg (centerArgs[1], XtNheight, &prompt_height);
-    XtGetValues (promptShell, centerArgs, 2);
-    source_x = (center_width - prompt_width) / 2;
-    source_y = (center_height - prompt_height) / 3;
-    XtTranslateCoords (centerw, source_x, source_y, &dest_x, &dest_y);
-    XtSetArg (centerArgs[0], XtNx, dest_x);
-    XtSetArg (centerArgs[1], XtNy, dest_y);
-    XtSetValues (promptShell, centerArgs, 2);
-    XtMapWidget(promptShell);
-    promptfunction = func;
-}
-
-/* For DviChar.c */
-
-char *xmalloc(n)
-    int n;
-{
-    return XtMalloc(n);
-}
-
-/*
-Local Variables:
-c-indent-level: 4
-c-continued-statement-offset: 4
-c-brace-offset: -4
-c-argdecl-indent: 4
-c-label-offset: -4
-c-tab-always-indent: nil
-End:
-*/
diff --git a/contrib/groff/src/xditview/xtotroff.c b/contrib/groff/src/xditview/xtotroff.c
deleted file mode 100644
index 97cac0a..0000000
--- a/contrib/groff/src/xditview/xtotroff.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/*
- * xtotroff
- *
- * convert X font metrics into troff font metrics
- */
-
-#include	<X11/Xlib.h>
-#include	<stdio.h>
-#include	<ctype.h>
-#include	<unistd.h>
-#include	<stdlib.h>
-#include	<fcntl.h>
-#include	"XFontName.h"
-#include	"DviChar.h"
-
-#ifdef X_NOT_STDC_ENV
-char *malloc();
-#else 
-#include <stdlib.h>
-#endif
-
-#define charWidth(fi,c)	((fi)->per_char[(c) - (fi)->min_char_or_byte2].width)
-#define charHeight(fi,c)	((fi)->per_char[(c) - (fi)->min_char_or_byte2].ascent)
-#define charDepth(fi,c)	((fi)->per_char[(c) - (fi)->min_char_or_byte2].descent)
-#define charLBearing(fi,c)	((fi)->per_char[(c) - (fi)->min_char_or_byte2].lbearing)
-#define charRBearing(fi,c)	((fi)->per_char[(c) - (fi)->min_char_or_byte2].rbearing)
-
-Display		*dpy;
-int		groff_flag = 0;
-unsigned	resolution = 75;
-unsigned	point_size = 10;
-
-int charExists (fi, c)
-	XFontStruct	*fi;
-	int		c;
-{
-	XCharStruct *p;
-
-	if (c < fi->min_char_or_byte2 || c > fi->max_char_or_byte2)
-		return 0;
-	p = fi->per_char + (c - fi->min_char_or_byte2);
-	return (p->lbearing != 0 || p->rbearing != 0 || p->width != 0
-		|| p->ascent != 0 || p->descent != 0 || p->attributes != 0);
-}
-
-/* Canonicalize the font name by replacing scalable parts by *s. */
-
-CanonicalizeFontName (font_name, canon_font_name)
-	char *font_name, *canon_font_name;
-{
-	unsigned int	attributes;
-	XFontName	parsed;
-
-	if (!XParseFontName(font_name, &parsed, &attributes)) {
-		fprintf (stderr, "not a standard name: %s\n", font_name);
-		return 0;
-	}
-
-	attributes &= ~(FontNamePixelSize|FontNameAverageWidth
-			|FontNamePointSize
-			|FontNameResolutionX|FontNameResolutionY);
-	XFormatFontName(&parsed, attributes, canon_font_name);
-	return 1;
-}
-
-int FontNamesAmbiguous(font_name, names, count)
-char *font_name;
-char **names;
-int count;
-{
-	char name1[2048], name2[2048];
-	int i;
-
-	if (count == 1)
-		return 0;
-
-	for (i = 0; i < count; i++) {
-		if (!CanonicalizeFontName(names[i], i == 0 ? name1 : name2)) {
-			fprintf(stderr, "bad font name: %s\n", names[i]);
-			return 1;
-		}
-		if (i > 0 && strcmp(name1, name2) != 0) {
-			fprintf(stderr, "ambiguous font name: %s\n", font_name);
-			fprintf(stderr, "  matches %s\n", names[0]);
-			fprintf(stderr, "  and %s\n", names[i]);
-			return 1;
-		}
-
-	}
-	return 0;
-}
-
-MapFont (font_name, troff_name)
-	char	*font_name;
-	char	*troff_name;
-{
-	XFontStruct	*fi;
-	int		count;
-	char		**names;
-	FILE		*out;
-	int		c;
-	unsigned int	attributes;
-	XFontName	parsed;
-	int		j, k;
-	DviCharNameMap	*char_map;
-	char		encoding[256];
-	char		*s;
-	int		wid;
-	char		name_string[2048];
-
-	if (!XParseFontName(font_name, &parsed, &attributes)) {
-		fprintf (stderr, "not a standard name: %s\n", font_name);
-		return 0;
-	}
-
-	attributes &= ~(FontNamePixelSize|FontNameAverageWidth);
-	attributes |= FontNameResolutionX;
-	attributes |= FontNameResolutionY;
-	attributes |= FontNamePointSize;
-	parsed.ResolutionX = resolution;
-	parsed.ResolutionY = resolution;
-	parsed.PointSize = point_size*10;
-	XFormatFontName(&parsed, attributes, name_string);
-
-	names = XListFonts (dpy, name_string, 100000, &count);
-	if (count < 1) {
-		fprintf (stderr, "bad font name: %s\n", font_name);
-		return 0;
-	}
-
-	if (FontNamesAmbiguous(font_name, names, count))
-		return 0;
-
-	XParseFontName(names[0], &parsed, &attributes);
-	sprintf (encoding, "%s-%s", parsed.CharSetRegistry,
-				    parsed.CharSetEncoding);
-	for (s = encoding; *s; s++)
-		if (isupper (*s))
-			*s = tolower (*s);
-	char_map = DviFindMap (encoding);
-	if (!char_map) {
-		fprintf (stderr, "not a standard encoding: %s\n", encoding);
-		return 0;
-	}
-
-	fi = XLoadQueryFont (dpy, names[0]);
-	if (!fi) {
-		fprintf (stderr, "font does not exist: %s\n", names[0]);
-		return 0;
-	}
-		
-	printf ("%s -> %s\n", names[0], troff_name);
-
-	{ /* Avoid race while opening file */
-		int fd;
-		(void) unlink (troff_name);
-		fd = open (troff_name, O_WRONLY | O_CREAT | O_EXCL, 0600);
-		out = fdopen (fd, "w");
-	}
-
-	if (!out) {
-		perror (troff_name);
-		return 0;
-	}
-	fprintf (out, "name %s\n", troff_name);
-	if (!strcmp (char_map->encoding, "adobe-fontspecific"))
-		fprintf (out, "special\n");
-	if (charExists (fi, ' ')) {
-		int w = charWidth (fi, ' ');
-		if (w > 0)
-			fprintf (out, "spacewidth %d\n", w);
-	}
-	fprintf (out, "charset\n");
-	for (c = fi->min_char_or_byte2; c <= fi->max_char_or_byte2; c++) {
-		char *name = DviCharName (char_map,c,0);
-		if (charExists (fi, c) && (groff_flag || name)) {
-
-			wid = charWidth (fi, c);
-
-			fprintf (out, "%s\t%d",
-					name ? name : "---",
-	 				wid);
-			if (groff_flag) {
-				int	param[5];
-				param[0] = charHeight (fi, c);
-				param[1] = charDepth (fi, c);
-				param[2] = 0 /* charRBearing (fi, c) - wid */;
-				param[3] = 0 /* charLBearing (fi, c) */;
-				param[4] = 0; /* XXX */
-				for (j = 0; j < 5; j++)
-					if (param[j] < 0)
-						param[j] = 0;
-				for (j = 4; j >= 0; j--)
-					if (param[j] != 0)
-						break;
-				for (k = 0; k <= j; k++)
-					fprintf (out, ",%d", param[k]);
-			}
-			fprintf (out, "\t0\t0%o\n", c);
-			
-			if (name) {
-				for (k = 1; DviCharName(char_map,c,k); k++) {
-					fprintf (out, "%s\t\"\n",
-						 DviCharName (char_map,c,k));
-				}
-			}
-		}
-	}
-	XUnloadFont (dpy, fi->fid);
-	fclose (out);
-	return 1;
-}
-
-static usage(prog)
-	char	*prog;
-{
-	fprintf (stderr,
-		 "usage: %s [-g] [-r resolution] [-s pointsize] FontMap\n",
-		 prog);
-	exit (1);
-}
-
-
-/* For use by DviChar.c */
-
-char *xmalloc(n)
-int n;
-{
-	char *p = malloc(n);
-	if (!p) {
-		fprintf(stderr, "Out of memory\n");
-		exit(1);
-	}
-	return p;
-}
-
-main (argc, argv)
-	char	**argv;
-{
-	char	troff_name[1024];
-	char	font_name[1024];
-	char	line[1024];
-	char	*a, *b, c;
-	int	position;
-	FILE	*map;
-	int	opt;
-	extern int optind;
-	extern char *optarg;
-
-	while ((opt = getopt(argc, argv, "gr:s:")) != EOF) {
-		switch (opt) {
-		case 'g':
-			groff_flag = 1;
-			break;
-		case 'r':
-			sscanf(optarg, "%u", &resolution);
-			break;
-		case 's':
-			sscanf(optarg, "%u", &point_size);
-			break;
-		default:
-			usage(argv[0]);
-		}
-	}
-	if (argc - optind != 1)
-		usage(argv[0]);
-
-	dpy = XOpenDisplay (0);
-	if (!dpy) {
-		fprintf (stderr, "Can't connect to the X server.\n");
-		fprintf (stderr, "Make sure the DISPLAY environment variable is set correctly.\n");
-		exit (1);
-	}
-        position = 1;
-
-	map = fopen (argv[optind], "r");
-	if (map == NULL) {
-		perror (argv[optind]);
-		exit (1);
-	}
-
-	while (fgets (line, sizeof (line), map)) {
-		for (a=line,b=troff_name; *a; a++,b++) {
-			c = (*b = *a);
-			if (c == ' ' || c == '\t')
-				break;
-		}
-		*b = '\0';
-		while (*a && (*a == ' ' || *a == '\t'))
-			++a;
-		for (b=font_name; *a; a++,b++)
-			if ((*b = *a) == '\n')
-				break;
-		*b = '\0';
-		if (!MapFont (font_name, troff_name))
-			exit (1);
-		++position;
-	}
-	exit (0);
-}
-
-/*
-Local Variables:
-c-indent-level: 8
-c-continued-statement-offset: 8
-c-brace-offset: -8
-c-argdecl-indent: 8
-c-label-offset: -8
-c-tab-always-indent: nil
-End:
-*/
diff --git a/contrib/groff/test-groff b/contrib/groff/test-groff
deleted file mode 100755
index cceecee..0000000
--- a/contrib/groff/test-groff
+++ /dev/null
@@ -1,42 +0,0 @@
-#! /bin/sh
-# This script runs groff without requiring that it be installed.
-# The current directory must be the top build directory.
-
-builddir=./src
-srcdir=`echo $0 | sed -e 's;/[^/]*$;;'`
-
-if test ! -d $builddir/roff/groff || \
-   test ! -r $builddir/roff/groff/groff; then
-  echo $0 must be run with the top build directory as the current directory 2>&1
-  exit 1
-fi
-
-GROFF_BIN_PATH=\
-$builddir/roff/groff:\
-$builddir/roff/troff:\
-$builddir/preproc/pic:\
-$builddir/preproc/eqn:\
-$builddir/preproc/tbl:\
-$builddir/preproc/grn:\
-$builddir/preproc/refer:\
-$builddir/preproc/soelim:\
-$builddir/preproc/html:\
-$builddir/devices/grops:\
-$builddir/devices/grodvi:\
-$builddir/devices/grotty:\
-$builddir/devices/grolj4:\
-$builddir/devices/grolbp:\
-$builddir/devices/grohtml:\
-$srcdir/$builddir/xditview
-
-test -n "$srcdir" || srcdir=.
-
-XENVIRONMENT=`cd $srcdir; pwd`/src/xditview/GXditview.ad
-export XENVIRONMENT
-
-GROFF_COMMAND_PREFIX=
-GROFF_FONT_PATH=$builddir/../font:$srcdir/font
-GROFF_TMAC_PATH=$srcdir/tmac
-export GROFF_BIN_PATH GROFF_COMMAND_PREFIX GROFF_FONT_PATH GROFF_TMAC_PATH
-
-exec $builddir/roff/groff/groff ${1+"$@"}