BSD 4.4 Lite Usr.bin Sources

11 files changed, 4341 insertions, 0 deletions

diff --git a/usr.bin/indent/Makefile b/usr.bin/indent/Makefile
new file mode 100644
index 0000000..8d9ff94
--- /dev/null
+++ b/usr.bin/indent/Makefile
@@ -0,0 +1,6 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	indent
+SRCS=	indent.c io.c lexi.c parse.c pr_comment.c args.c
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/indent/README b/usr.bin/indent/README
new file mode 100644
index 0000000..618f1de
--- /dev/null
+++ b/usr.bin/indent/README
@@ -0,0 +1,97 @@
+This is the C indenter, it originally came from the University of Illinois
+via some distribution tape for PDP-11 Unix.  It has subsequently been
+hacked upon by James Gosling @ CMU.  It isn't very pretty, and really needs
+to be completely redone, but it is probably the nicest C pretty printer
+around.
+
+Further additions to provide "Kernel Normal Form" were contributed
+by the folks at Sun Microsystems.
+
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+> From mnetor!yunexus!oz@uunet.UU.NET Wed Mar  9 15:30:55 1988
+> Date: Tue, 8 Mar 88 18:36:25 EST
+> From: yunexus!oz@uunet.UU.NET (Ozan Yigit)
+> To: bostic@okeeffe.berkeley.edu
+> Cc: ccvaxa!willcox@uunet.UU.NET, jag@sun.com, rsalz@uunet.UU.NET
+> In-Reply-To: Keith Bostic's message of Tue, 16 Feb 88 16:09:06 PST 
+> Subject: Re: Indent...
+
+Thank you for your response about indent. I was wrong in my original
+observation (or mis-observation :-). UCB did keep the Illinois
+copyright intact.
+
+The issue still is whether we can distribute indent, and if we can, which
+version. David Willcox (the author) states that:
+
+| Several people have asked me on what basis I claim that indent is in
+| the public domain.  I knew I would be sorry I made that posting.
+| 
+| Some history.  Way back in 1976, the project I worked on at the
+| University of Illinois Center for Advanced Computation had a huge
+| battle about how to format C code.  After about a week of fighting, I
+| got disgusted and wrote a program, which I called indent, to reformat C
+| code.  It had a bunch of different options that would let you format
+| the output the way you liked.  In particular, all of the different
+| formats being championed were supported.
+| 
+| It was my first big C program.  It was ugly.  It wasn't designed, it
+| just sort of grew.  But it pretty much worked, and it stopped most of
+| the fighting.
+| 
+| As a matter of form, I included a University of Illinois Copyright
+| notice.  However, my understanding was that, since the work was done
+| on an ARPA contract, it was in the public domain.
+| 
+| Time passed.  Some years later, indent showed up on one of the early
+| emacs distributions.
+| 
+| Later still, someone from UC Berlekey called the UofI and asked if
+| indent was in the public domain.  They wanted to include it in their
+| UNIX distributions, along with the emacs stuff.  I was no longer at the
+| UofI, but Rob Kolstad, who was, asked me about it.  I told him I didn't
+| care if they used it, and since then it has been on the BSD distributions.
+| 
+| Somewhere along the way, several other unnamed people have had their
+| hands in it.  It was converted to understand version 7 C.  (The
+| original was version 6.)  It was converted from its original filter
+| interface to its current "blow away the user's file" interface.
+| The $HOME/.indent.pro file parsing was added.  Some more formatting
+| options were added.
+| 
+| The source I have right now has two copyright notices.  One is the
+| original from the UofI.  One is from Berkeley.
+| 
+| I am not a lawyer, and I certainly do not understand copyright law.  As
+| far as I am concerned, the bulk of this program, everything covered by
+| the UofI copyright, is in the public domain, and worth every penny.
+| Berkeley's copyright probably should only cover their changes, and I
+| don't know their feelings about sending it out.  
+
+In any case, there appears to be noone at UofI to clarify/and change
+that copyright, but I am confident (based on the statements of its
+author) that the code, as it stands with its copyright, is
+distributable, and will not cause any legal problems.
+
+Hence, the issue reduces to *which* one to distribute through
+comp.sources.unix. I would suggest that with the permission of you
+folks (given that you have parts copyrighted), we distribute the 4.3
+version of indent, which appears to be the most up-to-date version. I
+happen to have just about every known version of indent, including the
+very original submission from the author to a unix tape, later the
+G-Emacs version, any 4.n version, sun version and the Unipress
+version.  I still think we should not have to "go-back-in-time" and
+re-do all the work you people have done.
+
+I hope to hear from you as to what you think about this. You may of
+course send 4.3 version to the moderator directly, or you can let me
+know of your permission, and I will send the sources, or you can let
+me know that 4.3 version is off-limits, in which case we would probably
+have to revert to an older version. One way or another, I hope to get
+a version of indent to comp.sources.unix.
+
+regards..	oz
+
+cc: ccvaxa!willcox
+    sun.com!jar
+    uunet!rsalz
+
diff --git a/usr.bin/indent/args.c b/usr.bin/indent/args.c
new file mode 100644
index 0000000..e62f038
--- /dev/null
+++ b/usr.bin/indent/args.c
@@ -0,0 +1,300 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)args.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+/*
+ * Argument scanning and profile reading code.  Default parameters are set
+ * here as well.
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include "indent_globs.h"
+
+/* profile types */
+#define	PRO_SPECIAL	1	/* special case */
+#define	PRO_BOOL	2	/* boolean */
+#define	PRO_INT		3	/* integer */
+#define PRO_FONT	4	/* troff font */
+
+/* profile specials for booleans */
+#define	ON		1	/* turn it on */
+#define	OFF		0	/* turn it off */
+
+/* profile specials for specials */
+#define	IGN		1	/* ignore it */
+#define	CLI		2	/* case label indent (float) */
+#define	STDIN		3	/* use stdin */
+#define	KEY		4	/* type (keyword) */
+
+char *option_source = "?";
+
+/*
+ * N.B.: because of the way the table here is scanned, options whose names are
+ * substrings of other options must occur later; that is, with -lp vs -l, -lp
+ * must be first.  Also, while (most) booleans occur more than once, the last
+ * default value is the one actually assigned.
+ */
+struct pro {
+    char       *p_name;		/* name, eg -bl, -cli */
+    int         p_type;		/* type (int, bool, special) */
+    int         p_default;	/* the default value (if int) */
+    int         p_special;	/* depends on type */
+    int        *p_obj;		/* the associated variable */
+}           pro[] = {
+
+    "T", PRO_SPECIAL, 0, KEY, 0,
+    "bacc", PRO_BOOL, false, ON, &blanklines_around_conditional_compilation,
+    "badp", PRO_BOOL, false, ON, &blanklines_after_declarations_at_proctop,
+    "bad", PRO_BOOL, false, ON, &blanklines_after_declarations,
+    "bap", PRO_BOOL, false, ON, &blanklines_after_procs,
+    "bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments,
+    "bc", PRO_BOOL, true, OFF, &ps.leave_comma,
+    "bl", PRO_BOOL, true, OFF, &btype_2,
+    "br", PRO_BOOL, true, ON, &btype_2,
+    "bs", PRO_BOOL, false, ON, &Bill_Shannon,
+    "cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline,
+    "cd", PRO_INT, 0, 0, &ps.decl_com_ind,
+    "ce", PRO_BOOL, true, ON, &cuddle_else,
+    "ci", PRO_INT, 0, 0, &continuation_indent,
+    "cli", PRO_SPECIAL, 0, CLI, 0,
+    "c", PRO_INT, 33, 0, &ps.com_ind,
+    "di", PRO_INT, 16, 0, &ps.decl_indent,
+    "dj", PRO_BOOL, false, ON, &ps.ljust_decl,
+    "d", PRO_INT, 0, 0, &ps.unindent_displace,
+    "eei", PRO_BOOL, false, ON, &extra_expression_indent,
+    "ei", PRO_BOOL, true, ON, &ps.else_if,
+    "fbc", PRO_FONT, 0, 0, (int *) &blkcomf,
+    "fbx", PRO_FONT, 0, 0, (int *) &boxcomf,
+    "fb", PRO_FONT, 0, 0, (int *) &bodyf,
+    "fc1", PRO_BOOL, true, ON, &format_col1_comments,
+    "fc", PRO_FONT, 0, 0, (int *) &scomf,
+    "fk", PRO_FONT, 0, 0, (int *) &keywordf,
+    "fs", PRO_FONT, 0, 0, (int *) &stringf,
+    "ip", PRO_BOOL, true, ON, &ps.indent_parameters,
+    "i", PRO_INT, 8, 0, &ps.ind_size,
+    "lc", PRO_INT, 0, 0, &block_comment_max_col,
+    "lp", PRO_BOOL, true, ON, &lineup_to_parens,
+    "l", PRO_INT, 78, 0, &max_col,
+    "nbacc", PRO_BOOL, false, OFF, &blanklines_around_conditional_compilation,
+    "nbadp", PRO_BOOL, false, OFF, &blanklines_after_declarations_at_proctop,
+    "nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations,
+    "nbap", PRO_BOOL, false, OFF, &blanklines_after_procs,
+    "nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments,
+    "nbc", PRO_BOOL, true, ON, &ps.leave_comma,
+    "nbs", PRO_BOOL, false, OFF, &Bill_Shannon,
+    "ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline,
+    "nce", PRO_BOOL, true, OFF, &cuddle_else,
+    "ndj", PRO_BOOL, false, OFF, &ps.ljust_decl,
+    "neei", PRO_BOOL, false, OFF, &extra_expression_indent,
+    "nei", PRO_BOOL, true, OFF, &ps.else_if,
+    "nfc1", PRO_BOOL, true, OFF, &format_col1_comments,
+    "nip", PRO_BOOL, true, OFF, &ps.indent_parameters,
+    "nlp", PRO_BOOL, true, OFF, &lineup_to_parens,
+    "npcs", PRO_BOOL, false, OFF, &proc_calls_space,
+    "npro", PRO_SPECIAL, 0, IGN, 0,
+    "npsl", PRO_BOOL, true, OFF, &procnames_start_line,
+    "nps", PRO_BOOL, false, OFF, &pointer_as_binop,
+    "nsc", PRO_BOOL, true, OFF, &star_comment_cont,
+    "nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines,
+    "nv", PRO_BOOL, false, OFF, &verbose,
+    "pcs", PRO_BOOL, false, ON, &proc_calls_space,
+    "psl", PRO_BOOL, true, ON, &procnames_start_line,
+    "ps", PRO_BOOL, false, ON, &pointer_as_binop,
+    "sc", PRO_BOOL, true, ON, &star_comment_cont,
+    "sob", PRO_BOOL, false, ON, &swallow_optional_blanklines,
+    "st", PRO_SPECIAL, 0, STDIN, 0,
+    "troff", PRO_BOOL, false, ON, &troff,
+    "v", PRO_BOOL, false, ON, &verbose,
+    /* whew! */
+    0, 0, 0, 0, 0
+};
+
+/*
+ * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
+ * given in these files.
+ */
+set_profile()
+{
+    register FILE *f;
+    char        fname[BUFSIZ];
+    static char prof[] = ".indent.pro";
+
+    sprintf(fname, "%s/%s", getenv("HOME"), prof);
+    if ((f = fopen(option_source = fname, "r")) != NULL) {
+	scan_profile(f);
+	(void) fclose(f);
+    }
+    if ((f = fopen(option_source = prof, "r")) != NULL) {
+	scan_profile(f);
+	(void) fclose(f);
+    }
+    option_source = "Command line";
+}
+
+scan_profile(f)
+    register FILE *f;
+{
+    register int i;
+    register char *p;
+    char        buf[BUFSIZ];
+
+    while (1) {
+	for (p = buf; (i = getc(f)) != EOF && (*p = i) > ' '; ++p);
+	if (p != buf) {
+	    *p++ = 0;
+	    if (verbose)
+		printf("profile: %s\n", buf);
+	    set_option(buf);
+	}
+	else if (i == EOF)
+	    return;
+    }
+}
+
+char       *param_start;
+
+eqin(s1, s2)
+    register char *s1;
+    register char *s2;
+{
+    while (*s1) {
+	if (*s1++ != *s2++)
+	    return (false);
+    }
+    param_start = s2;
+    return (true);
+}
+
+/*
+ * Set the defaults.
+ */
+set_defaults()
+{
+    register struct pro *p;
+
+    /*
+     * Because ps.case_indent is a float, we can't initialize it from the
+     * table:
+     */
+    ps.case_indent = 0.0;	/* -cli0.0 */
+    for (p = pro; p->p_name; p++)
+	if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT)
+	    *p->p_obj = p->p_default;
+}
+
+set_option(arg)
+    register char *arg;
+{
+    register struct pro *p;
+    extern double atof();
+
+    arg++;			/* ignore leading "-" */
+    for (p = pro; p->p_name; p++)
+	if (*p->p_name == *arg && eqin(p->p_name, arg))
+	    goto found;
+    fprintf(stderr, "indent: %s: unknown parameter \"%s\"\n", option_source, arg - 1);
+    exit(1);
+found:
+    switch (p->p_type) {
+
+    case PRO_SPECIAL:
+	switch (p->p_special) {
+
+	case IGN:
+	    break;
+
+	case CLI:
+	    if (*param_start == 0)
+		goto need_param;
+	    ps.case_indent = atof(param_start);
+	    break;
+
+	case STDIN:
+	    if (input == 0)
+		input = stdin;
+	    if (output == 0)
+		output = stdout;
+	    break;
+
+	case KEY:
+	    if (*param_start == 0)
+		goto need_param;
+	    {
+		register char *str = (char *) malloc(strlen(param_start) + 1);
+		strcpy(str, param_start);
+		addkey(str, 4);
+	    }
+	    break;
+
+	default:
+	    fprintf(stderr, "\
+indent: set_option: internal error: p_special %d\n", p->p_special);
+	    exit(1);
+	}
+	break;
+
+    case PRO_BOOL:
+	if (p->p_special == OFF)
+	    *p->p_obj = false;
+	else
+	    *p->p_obj = true;
+	break;
+
+    case PRO_INT:
+	if (!isdigit(*param_start)) {
+    need_param:
+	    fprintf(stderr, "indent: %s: ``%s'' requires a parameter\n",
+		    option_source, arg - 1);
+	    exit(1);
+	}
+	*p->p_obj = atoi(param_start);
+	break;
+
+    case PRO_FONT:
+	parsefont((struct fstate *) p->p_obj, param_start);
+	break;
+
+    default:
+	fprintf(stderr, "indent: set_option: internal error: p_type %d\n",
+		p->p_type);
+	exit(1);
+    }
+}
diff --git a/usr.bin/indent/indent.1 b/usr.bin/indent/indent.1
new file mode 100644
index 0000000..c44964a
--- /dev/null
+++ b/usr.bin/indent/indent.1
@@ -0,0 +1,452 @@
+.\" Copyright (c) 1980, 1990, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\" Copyright (c) 1976 Board of Trustees of the University of Illinois.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)indent.1	8.1 (Berkeley) 7/1/93
+.\"
+.Dd July 1, 1993
+.Dt INDENT 1
+.Os BSD 4.2
+.Sh NAME
+.Nm indent
+.Nd indent and format C program source
+.Sh SYNOPSIS
+.Nm indent
+.Op Ar input-file Op Ar output-file
+.Op Fl bad | Fl nbad
+.Op Fl bap | Fl nbap
+.Bk -words
+.Op Fl bbb | Fl nbbb
+.Ek
+.Op Fl \&bc | Fl nbc
+.Op Fl \&bl
+.Op Fl \&br
+.Op Fl c Ns Ar n
+.Op Fl \&cd Ns Ar n
+.Bk -words
+.Op Fl cdb | Fl ncdb
+.Ek
+.Op Fl \&ce | Fl nce
+.Op Fl \&ci Ns Ar n
+.Op Fl cli Ns Ar n
+.Op Fl d Ns Ar n
+.Op Fl \&di Ns Ar n
+.Bk -words
+.Op Fl fc1 | Fl nfc1
+.Ek
+.Op Fl i Ns Ar n
+.Op Fl \&ip | Fl nip
+.Op Fl l Ns Ar n
+.Op Fl \&lc Ns Ar n
+.Op Fl \&lp | Fl nlp
+.Op Fl npro
+.Op Fl pcs | Fl npcs
+.Op Fl psl | Fl npsl
+.Op Fl \&sc | Fl nsc
+.Bk -words
+.Op Fl sob | Fl nsob
+.Ek
+.Op Fl \&st
+.Op Fl troff
+.Op Fl v | Fl \&nv
+.Sh DESCRIPTION
+.Nm Indent
+is a
+.Ar C
+program formatter.  It reformats the
+.Ar C
+program in the
+.Ar input-file
+according to the switches.  The switches which can be
+specified are described below. They may appear before or after the file
+names.
+.Pp
+.Sy NOTE  :
+If you only specify an
+.Ar input-file  ,
+the formatting is
+done `in-place', that is, the formatted file is written back into
+.Ar input-file
+and a backup copy of
+.Ar input-file
+is written in the current directory.  If
+.Ar input-file
+is named
+.Sq Pa /blah/blah/file ,
+the backup file is named
+.Pa file.BAK .
+.Pp
+If
+.Ar output-file
+is specified,
+.Nm indent
+checks to make sure it is different from
+.Ar input-file  .
+.Pp
+The options listed below control the formatting style imposed by
+.Nm indent  .
+.Bl -tag -width Op
+.It Fl bad , nbad
+If
+.Fl bad
+is specified, a blank line is forced after every block of
+declarations.  Default:
+.Fl nbad  .
+.It Fl bap , nbap
+If
+.Fl bap
+is specified, a blank line is forced after every procedure body.  Default:
+.Fl nbap .
+.It Fl bbb , nbbb
+If
+.Fl bbb
+is specified, a blank line is forced before every block comment.  Default:
+.Fl nbbb .
+.It Fl \&bc , nbc
+If
+.Fl \&bc
+is specified, then a newline is forced after each comma in a declaration.
+.Fl nbc
+turns off this option.  The default is
+.Fl \&bc  .
+.It Fl \&br , \&bl
+Specifying
+.Fl \&bl
+lines up compound statements like this:
+.ne 4
+.Bd -literal -offset indent
+if (...)
+{
+  code
+}
+.Ed
+.Pp
+Specifying
+.Fl \&br
+(the default) makes them look like this:
+.ne 3
+.Bd -literal -offset indent
+if (...) {
+  code
+}
+.Ed
+.Pp
+.It Fl c n
+The column in which comments on code start.  The default is 33.
+.It Fl cd n
+The column in which comments on declarations start.  The default
+is for these comments to start in the same column as those on code.
+.It Fl cdb , ncdb
+Enables (disables) the placement of comment delimiters on blank lines.  With
+this option enabled, comments look like this:
+.Bd -literal -offset indent
+.ne 3
+	/*
+	* this is a comment
+	*/
+.Ed
+.Pp
+Rather than like this:
+.Bd -literal -offset indent
+	/* this is a comment */
+.Ed
+.Pp
+This only affects block comments, not comments to the right of
+code.  The default is
+.Fl cdb  .
+.It Fl ce , nce
+Enables (disables) forcing `else's to cuddle up to the immediately preceding
+`}'.  The default is
+.Fl \&ce  .
+.It Fl \&ci Ns Ar n 
+Sets the continuation indent to be
+.Ar n  .
+Continuation
+lines will be indented that far from the beginning of the first line of the
+statement.  Parenthesized expressions have extra indentation added to
+indicate the nesting, unless
+.Fl \&lp
+is in effect.
+.Fl \&ci
+defaults to the same value as
+.Fl i  .
+.It Fl cli Ns Ar n 
+Causes case labels to be indented
+.Ar n
+tab stops to the right of the containing
+.Ic switch
+statement.
+.Fl cli0 .5
+causes case labels to be indented half a tab stop.  The
+default is
+.Fl cli0  .
+.It Fl d Ns Ar n 
+Controls the placement of comments which are not to the
+right of code.  The default
+.Fl \&d\&1
+means that such comments are placed one indentation level to the
+left of code.  Specifying
+.Fl \&d\&0
+lines up these comments with the code.  See the section on comment
+indentation below.
+.It Fl \&di Ns Ar n 
+Specifies the indentation, in character positions, from a declaration keyword
+to the following identifier.  The default is
+.Fl di16  .
+.It Fl dj , ndj
+.Fl \&dj
+left justifies declarations.
+.Fl ndj
+indents declarations the same as code.  The default is
+.Fl ndj  .
+.It Fl \&ei , nei
+Enables (disables) special
+.Ic else-if
+processing.  If it's enabled, an
+.Ic if
+following an
+.Ic else
+will have the same indentation as the preceding
+.Ic \&if
+statement.
+.It Fl fc1 , nfc1
+Enables (disables) the formatting of comments that start in column 1.
+Often, comments whose leading `/' is in column 1 have been carefully
+hand formatted by the programmer.  In such cases,
+.Fl nfc1
+should be
+used.  The default is
+.Fl fc1  .
+.It Fl i Ns Ar n 
+The number of spaces for one indentation level.  The default is 4.
+.It Fl \&ip , nip
+Enables (disables) the indentation of parameter declarations from the left
+margin.  The default is
+.Fl \&ip  .
+.It Fl l Ns Ar n 
+Maximum length of an output line.  The default is 75.
+.It Fl \&lp , nlp
+Lines up code surrounded by parenthesis in continuation lines.  If a line
+has a left paren which is not closed on that line, then continuation lines
+will be lined up to start at the character position just after the left
+paren.  For example, here is how a piece of continued code looks with
+.Fl nlp
+in effect:
+.ne 2
+.Bd -literal -offset indent
+p1 = first_procedure(second_procedure(p2, p3),
+\ \ third_procedure(p4,p5));
+.Ed
+.Pp
+.ne 5
+With
+.Fl lp
+in effect (the default) the code looks somewhat clearer:
+.Bd -literal -offset indent
+p1\ =\ first_procedure(second_procedure(p2,\ p3),
+\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ third_procedure(p4,p5));
+.Ed
+.Pp
+.ne 5
+Inserting two more newlines we get:
+.Bd -literal -offset indent
+p1\ =\ first_procedure(second_procedure(p2,
+\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ p3),
+\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ third_procedure(p4
+\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ p5));
+.Ed
+.It Fl npro
+Causes the profile files,
+.Sq Pa ./.indent.pro
+and
+.Sq Pa ~/.indent.pro ,
+to be ignored.
+.It Fl pcs , npcs
+If true
+.Pq Fl pcs
+all procedure calls will have a space inserted between
+the name and the `('.  The default is
+.Fl npcs  .
+.It Fl psl , npsl
+If true
+.Pq Fl psl
+the names of procedures being defined are placed in
+column 1 \- their types, if any, will be left on the previous lines.  The
+default is
+.Fl psl  .
+.It Fl \&sc , nsc
+Enables (disables) the placement of asterisks (`*'s) at the left edge of all
+comments.
+.It Fl sob , nsob
+If
+.Fl sob
+is specified, indent will swallow optional blank lines.  You can use this to
+get rid of blank lines after declarations.  Default:
+.Fl nsob  .
+.It Fl \&st
+Causes
+.Nm indent
+to take its input from stdin, and put its output to stdout.
+.It Fl T Ns Ar typename 
+Adds
+.Ar typename
+to the list of type keywords.  Names accumulate:
+.Fl T
+can be specified more than once.  You need to specify all the typenames that
+appear in your program that are defined by
+.Ic typedef
+\- nothing will be
+harmed if you miss a few, but the program won't be formatted as nicely as
+it should.  This sounds like a painful thing to have to do, but it's really
+a symptom of a problem in C:
+.Ic typedef
+causes a syntactic change in the
+language and
+.Nm indent
+can't find all
+instances of
+.Ic typedef .
+.It Fl troff
+Causes
+.Nm indent
+to format the program for processing by
+.Xr troff 1 .
+It will produce a fancy
+listing in much the same spirit as
+.Xr vgrind 1 .
+If the output file is not specified, the default is standard output,
+rather than formatting in place.
+.It Fl v , \&nv
+.Fl v
+turns on `verbose' mode;
+.Fl \&nv
+turns it off.  When in verbose mode,
+.Nm indent
+reports when it splits one line of input into two or more lines of output,
+and gives some size statistics at completion. The default is
+.Fl \&nv  .
+.El
+.Pp
+You may set up your own `profile' of defaults to
+.Nm indent
+by creating a file called
+.Pa .indent.pro
+in your login directory and/or the current directory and including
+whatever switches you like.  A `.indent.pro' in the current directory takes
+precedence over the one in your login directory.  If
+.Nm indent
+is run and a profile file exists, then it is read to set up the program's
+defaults.  Switches on the command line, though, always override profile
+switches.  The switches should be separated by spaces, tabs or newlines.
+.Pp
+.Ss Comments
+.Sq Em Box
+.Em comments .
+.Nm Indent
+assumes that any comment with a dash or star immediately after the start of
+comment (that is, `/*\-' or `/**') is a comment surrounded by a box of stars.
+Each line of such a comment is left unchanged, except that its indentation
+may be adjusted to account for the change in indentation of the first line
+of the comment.
+.Pp
+.Em Straight text .
+All other comments are treated as straight text.
+.Nm Indent
+fits as many words (separated by blanks, tabs, or newlines) on a
+line as possible.  Blank lines break paragraphs.
+.Pp
+.Ss Comment indentation
+If a comment is on a line with code it is started in the `comment column',
+which is set by the
+.Fl c Ns Ns Ar n 
+command line parameter.  Otherwise, the comment is started at
+.Ar n
+indentation levels less than where code is currently being placed, where
+.Ar n
+is specified by the
+.Fl d Ns Ns Ar n 
+command line parameter.  If the code on a line extends past the comment
+column, the comment starts further to the right, and the right margin may be
+automatically extended in extreme cases.
+.Pp
+.Ss Preprocessor lines
+In general,
+.Nm indent
+leaves preprocessor lines alone.  The only
+reformatting that it will do is to straighten up trailing comments.  It
+leaves embedded comments alone.  Conditional compilation
+.Pq Ic #ifdef...#endif
+is recognized and
+.Nm indent
+attempts to correctly
+compensate for the syntactic peculiarities introduced.
+.Pp
+.Ss C syntax
+.Nm Indent
+understands a substantial amount about the syntax of C, but it
+has a `forgiving' parser.  It attempts to cope with the usual sorts of
+incomplete and misformed syntax.  In particular, the use of macros like:
+.Pp
+.Dl #define forever for(;;)
+.Pp
+is handled properly.
+.Sh ENVIRONMENT
+.Nm Indent
+uses the
+.Ev HOME
+environment variable.
+.Sh FILES
+.Bl -tag -width "./.indent.pro" -compact
+.It Pa ./.indent.pro
+profile file
+.It Pa ~/.indent.pro
+profile file
+.El
+.Sh HISTORY
+The
+.Nm indent
+command appeared in
+.Bx 4.2 .
+.Sh BUGS
+.Nm Indent
+has even more switches than
+.Xr ls 1 .
+.Pp
+.ne 5
+A common mistake that often causes grief is typing:
+.Pp
+.Dl indent *.c
+.Pp
+to the shell in an attempt to indent all the
+.Nm C
+programs in a directory.
+This is probably a bug, not a feature.
diff --git a/usr.bin/indent/indent.c b/usr.bin/indent/indent.c
new file mode 100644
index 0000000..132d21f
--- /dev/null
+++ b/usr.bin/indent/indent.c
@@ -0,0 +1,1181 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1976 Board of Trustees of the University of Illinois.
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1985 Sun Microsystems, Inc.\n\
+@(#) Copyright (c) 1976 Board of Trustees of the University of Illinois.\n\
+@(#) Copyright (c) 1980, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)indent.c	5.17 (Berkeley) 6/7/93";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "indent_globs.h"
+#include "indent_codes.h"
+#include <ctype.h>
+
+char       *in_name = "Standard Input";	/* will always point to name of input
+					 * file */
+char       *out_name = "Standard Output";	/* will always point to name
+						 * of output file */
+char        bakfile[MAXPATHLEN] = "";
+
+main(argc, argv)
+    int         argc;
+    char      **argv;
+{
+
+    extern int  found_err;	/* flag set in diag() on error */
+    int         dec_ind;	/* current indentation for declarations */
+    int         di_stack[20];	/* a stack of structure indentation levels */
+    int         flushed_nl;	/* used when buffering up comments to remember
+				 * that a newline was passed over */
+    int         force_nl;	/* when true, code must be broken */
+    int         hd_type;	/* used to store type of stmt for if (...),
+				 * for (...), etc */
+    register int i;		/* local loop counter */
+    int         scase;		/* set to true when we see a case, so we will
+				 * know what to do with the following colon */
+    int         sp_sw;		/* when true, we are in the expressin of
+				 * if(...), while(...), etc. */
+    int         squest;		/* when this is positive, we have seen a ?
+				 * without the matching : in a <c>?<s>:<s>
+				 * construct */
+    register char *t_ptr;	/* used for copying tokens */
+    int         type_code;	/* the type of token, returned by lexi */
+
+    int         last_else = 0;	/* true iff last keyword was an else */
+
+
+    /*-----------------------------------------------*\
+    |		      INITIALIZATION		      |
+    \*-----------------------------------------------*/
+
+
+    ps.p_stack[0] = stmt;	/* this is the parser's stack */
+    ps.last_nl = true;		/* this is true if the last thing scanned was
+				 * a newline */
+    ps.last_token = semicolon;
+    combuf = (char *) malloc(bufsize);
+    labbuf = (char *) malloc(bufsize);
+    codebuf = (char *) malloc(bufsize);
+    tokenbuf = (char *) malloc(bufsize);
+    l_com = combuf + bufsize - 5;
+    l_lab = labbuf + bufsize - 5;
+    l_code = codebuf + bufsize - 5;
+    l_token = tokenbuf + bufsize - 5;
+    combuf[0] = codebuf[0] = labbuf[0] = ' ';	/* set up code, label, and
+						 * comment buffers */
+    combuf[1] = codebuf[1] = labbuf[1] = '\0';
+    ps.else_if = 1;		/* Default else-if special processing to on */
+    s_lab = e_lab = labbuf + 1;
+    s_code = e_code = codebuf + 1;
+    s_com = e_com = combuf + 1;
+    s_token = e_token = tokenbuf + 1;
+
+    in_buffer = (char *) malloc(10);
+    in_buffer_limit = in_buffer + 8;
+    buf_ptr = buf_end = in_buffer;
+    line_no = 1;
+    had_eof = ps.in_decl = ps.decl_on_line = break_comma = false;
+    sp_sw = force_nl = false;
+    ps.in_or_st = false;
+    ps.bl_line = true;
+    dec_ind = 0;
+    di_stack[ps.dec_nest = 0] = 0;
+    ps.want_blank = ps.in_stmt = ps.ind_stmt = false;
+
+
+    scase = ps.pcase = false;
+    squest = 0;
+    sc_end = 0;
+    bp_save = 0;
+    be_save = 0;
+
+    output = 0;
+
+
+
+    /*--------------------------------------------------*\
+    |   		COMMAND LINE SCAN		 |
+    \*--------------------------------------------------*/
+
+#ifdef undef
+    max_col = 78;		/* -l78 */
+    lineup_to_parens = 1;	/* -lp */
+    ps.ljust_decl = 0;		/* -ndj */
+    ps.com_ind = 33;		/* -c33 */
+    star_comment_cont = 1;	/* -sc */
+    ps.ind_size = 8;		/* -i8 */
+    verbose = 0;
+    ps.decl_indent = 16;	/* -di16 */
+    ps.indent_parameters = 1;	/* -ip */
+    ps.decl_com_ind = 0;	/* if this is not set to some positive value
+				 * by an arg, we will set this equal to
+				 * ps.com_ind */
+    btype_2 = 1;		/* -br */
+    cuddle_else = 1;		/* -ce */
+    ps.unindent_displace = 0;	/* -d0 */
+    ps.case_indent = 0;		/* -cli0 */
+    format_col1_comments = 1;	/* -fc1 */
+    procnames_start_line = 1;	/* -psl */
+    proc_calls_space = 0;	/* -npcs */
+    comment_delimiter_on_blankline = 1;	/* -cdb */
+    ps.leave_comma = 1;		/* -nbc */
+#endif
+
+    for (i = 1; i < argc; ++i)
+	if (strcmp(argv[i], "-npro") == 0)
+	    break;
+    set_defaults();
+    if (i >= argc)
+	set_profile();
+
+    for (i = 1; i < argc; ++i) {
+
+	/*
+	 * look thru args (if any) for changes to defaults
+	 */
+	if (argv[i][0] != '-') {/* no flag on parameter */
+	    if (input == 0) {	/* we must have the input file */
+		in_name = argv[i];	/* remember name of input file */
+		input = fopen(in_name, "r");
+		if (input == 0)		/* check for open error */
+			err(in_name);
+		continue;
+	    }
+	    else if (output == 0) {	/* we have the output file */
+		out_name = argv[i];	/* remember name of output file */
+		if (strcmp(in_name, out_name) == 0) {	/* attempt to overwrite
+							 * the file */
+		    fprintf(stderr, "indent: input and output files must be different\n");
+		    exit(1);
+		}
+		output = fopen(out_name, "w");
+		if (output == 0)	/* check for create error */
+			err(out_name);
+		continue;
+	    }
+	    fprintf(stderr, "indent: unknown parameter: %s\n", argv[i]);
+	    exit(1);
+	}
+	else
+	    set_option(argv[i]);
+    }				/* end of for */
+    if (input == 0) {
+	fprintf(stderr, "indent: usage: indent file [ outfile ] [ options ]\n");
+	exit(1);
+    }
+    if (output == 0)
+	if (troff)
+	    output = stdout;
+	else {
+	    out_name = in_name;
+	    bakcopy();
+	}
+    if (ps.com_ind <= 1)
+	ps.com_ind = 2;		/* dont put normal comments before column 2 */
+    if (troff) {
+	if (bodyf.font[0] == 0)
+	    parsefont(&bodyf, "R");
+	if (scomf.font[0] == 0)
+	    parsefont(&scomf, "I");
+	if (blkcomf.font[0] == 0)
+	    blkcomf = scomf, blkcomf.size += 2;
+	if (boxcomf.font[0] == 0)
+	    boxcomf = blkcomf;
+	if (stringf.font[0] == 0)
+	    parsefont(&stringf, "L");
+	if (keywordf.font[0] == 0)
+	    parsefont(&keywordf, "B");
+	writefdef(&bodyf, 'B');
+	writefdef(&scomf, 'C');
+	writefdef(&blkcomf, 'L');
+	writefdef(&boxcomf, 'X');
+	writefdef(&stringf, 'S');
+	writefdef(&keywordf, 'K');
+    }
+    if (block_comment_max_col <= 0)
+	block_comment_max_col = max_col;
+    if (ps.decl_com_ind <= 0)	/* if not specified by user, set this */
+	ps.decl_com_ind = ps.ljust_decl ? (ps.com_ind <= 10 ? 2 : ps.com_ind - 8) : ps.com_ind;
+    if (continuation_indent == 0)
+	continuation_indent = ps.ind_size;
+    fill_buffer();		/* get first batch of stuff into input buffer */
+
+    parse(semicolon);
+    {
+	register char *p = buf_ptr;
+	register    col = 1;
+
+	while (1) {
+	    if (*p == ' ')
+		col++;
+	    else if (*p == '\t')
+		col = ((col - 1) & ~7) + 9;
+	    else
+		break;
+	    p++;
+	}
+	if (col > ps.ind_size)
+	    ps.ind_level = ps.i_l_follow = col / ps.ind_size;
+    }
+    if (troff) {
+	register char *p = in_name,
+	           *beg = in_name;
+
+	while (*p)
+	    if (*p++ == '/')
+		beg = p;
+	fprintf(output, ".Fn \"%s\"\n", beg);
+    }
+    /*
+     * START OF MAIN LOOP
+     */
+
+    while (1) {			/* this is the main loop.  it will go until we
+				 * reach eof */
+	int         is_procname;
+
+	type_code = lexi();	/* lexi reads one token.  The actual
+				 * characters read are stored in "token". lexi
+				 * returns a code indicating the type of token */
+	is_procname = ps.procname[0];
+
+	/*
+	 * The following code moves everything following an if (), while (),
+	 * else, etc. up to the start of the following stmt to a buffer. This
+	 * allows proper handling of both kinds of brace placement.
+	 */
+
+	flushed_nl = false;
+	while (ps.search_brace) {	/* if we scanned an if(), while(),
+					 * etc., we might need to copy stuff
+					 * into a buffer we must loop, copying
+					 * stuff into save_com, until we find
+					 * the start of the stmt which follows
+					 * the if, or whatever */
+	    switch (type_code) {
+	    case newline:
+		++line_no;
+		flushed_nl = true;
+	    case form_feed:
+		break;		/* form feeds and newlines found here will be
+				 * ignored */
+
+	    case lbrace:	/* this is a brace that starts the compound
+				 * stmt */
+		if (sc_end == 0) {	/* ignore buffering if a comment wasnt
+					 * stored up */
+		    ps.search_brace = false;
+		    goto check_type;
+		}
+		if (btype_2) {
+		    save_com[0] = '{';	/* we either want to put the brace
+					 * right after the if */
+		    goto sw_buffer;	/* go to common code to get out of
+					 * this loop */
+		}
+	    case comment:	/* we have a comment, so we must copy it into
+				 * the buffer */
+		if (!flushed_nl || sc_end != 0) {
+		    if (sc_end == 0) {	/* if this is the first comment, we
+					 * must set up the buffer */
+			save_com[0] = save_com[1] = ' ';
+			sc_end = &(save_com[2]);
+		    }
+		    else {
+			*sc_end++ = '\n';	/* add newline between
+						 * comments */
+			*sc_end++ = ' ';
+			--line_no;
+		    }
+		    *sc_end++ = '/';	/* copy in start of comment */
+		    *sc_end++ = '*';
+
+		    for (;;) {	/* loop until we get to the end of the comment */
+			*sc_end = *buf_ptr++;
+			if (buf_ptr >= buf_end)
+			    fill_buffer();
+
+			if (*sc_end++ == '*' && *buf_ptr == '/')
+			    break;	/* we are at end of comment */
+
+			if (sc_end >= &(save_com[sc_size])) {	/* check for temp buffer
+								 * overflow */
+			    diag(1, "Internal buffer overflow - Move big comment from right after if, while, or whatever.");
+			    fflush(output);
+			    exit(1);
+			}
+		    }
+		    *sc_end++ = '/';	/* add ending slash */
+		    if (++buf_ptr >= buf_end)	/* get past / in buffer */
+			fill_buffer();
+		    break;
+		}
+	    default:		/* it is the start of a normal statment */
+		if (flushed_nl)	/* if we flushed a newline, make sure it is
+				 * put back */
+		    force_nl = true;
+		if (type_code == sp_paren && *token == 'i'
+			&& last_else && ps.else_if
+			|| type_code == sp_nparen && *token == 'e'
+			&& e_code != s_code && e_code[-1] == '}')
+		    force_nl = false;
+
+		if (sc_end == 0) {	/* ignore buffering if comment wasnt
+					 * saved up */
+		    ps.search_brace = false;
+		    goto check_type;
+		}
+		if (force_nl) {	/* if we should insert a nl here, put it into
+				 * the buffer */
+		    force_nl = false;
+		    --line_no;	/* this will be re-increased when the nl is
+				 * read from the buffer */
+		    *sc_end++ = '\n';
+		    *sc_end++ = ' ';
+		    if (verbose && !flushed_nl)	/* print error msg if the line
+						 * was not already broken */
+			diag(0, "Line broken");
+		    flushed_nl = false;
+		}
+		for (t_ptr = token; *t_ptr; ++t_ptr)
+		    *sc_end++ = *t_ptr;	/* copy token into temp buffer */
+		ps.procname[0] = 0;
+
+	sw_buffer:
+		ps.search_brace = false;	/* stop looking for start of
+						 * stmt */
+		bp_save = buf_ptr;	/* save current input buffer */
+		be_save = buf_end;
+		buf_ptr = save_com;	/* fix so that subsequent calls to
+					 * lexi will take tokens out of
+					 * save_com */
+		*sc_end++ = ' ';/* add trailing blank, just in case */
+		buf_end = sc_end;
+		sc_end = 0;
+		break;
+	    }			/* end of switch */
+	    if (type_code != 0)	/* we must make this check, just in case there
+				 * was an unexpected EOF */
+		type_code = lexi();	/* read another token */
+	    /* if (ps.search_brace) ps.procname[0] = 0; */
+	    if ((is_procname = ps.procname[0]) && flushed_nl
+		    && !procnames_start_line && ps.in_decl
+		    && type_code == ident)
+		flushed_nl = 0;
+	}			/* end of while (search_brace) */
+	last_else = 0;
+check_type:
+	if (type_code == 0) {	/* we got eof */
+	    if (s_lab != e_lab || s_code != e_code
+		    || s_com != e_com)	/* must dump end of line */
+		dump_line();
+	    if (ps.tos > 1)	/* check for balanced braces */
+		diag(1, "Stuff missing from end of file.");
+
+	    if (verbose) {
+		printf("There were %d output lines and %d comments\n",
+		       ps.out_lines, ps.out_coms);
+		printf("(Lines with comments)/(Lines with code): %6.3f\n",
+		       (1.0 * ps.com_lines) / code_lines);
+	    }
+	    fflush(output);
+	    exit(found_err);
+	}
+	if (
+		(type_code != comment) &&
+		(type_code != newline) &&
+		(type_code != preesc) &&
+		(type_code != form_feed)) {
+	    if (force_nl &&
+		    (type_code != semicolon) &&
+		    (type_code != lbrace || !btype_2)) {
+		/* we should force a broken line here */
+		if (verbose && !flushed_nl)
+		    diag(0, "Line broken");
+		flushed_nl = false;
+		dump_line();
+		ps.want_blank = false;	/* dont insert blank at line start */
+		force_nl = false;
+	    }
+	    ps.in_stmt = true;	/* turn on flag which causes an extra level of
+				 * indentation. this is turned off by a ; or
+				 * '}' */
+	    if (s_com != e_com) {	/* the turkey has embedded a comment
+					 * in a line. fix it */
+		*e_code++ = ' ';
+		for (t_ptr = s_com; *t_ptr; ++t_ptr) {
+		    CHECK_SIZE_CODE;
+		    *e_code++ = *t_ptr;
+		}
+		*e_code++ = ' ';
+		*e_code = '\0';	/* null terminate code sect */
+		ps.want_blank = false;
+		e_com = s_com;
+	    }
+	}
+	else if (type_code != comment)	/* preserve force_nl thru a comment */
+	    force_nl = false;	/* cancel forced newline after newline, form
+				 * feed, etc */
+
+
+
+	/*-----------------------------------------------------*\
+	|	   do switch on type of token scanned		|
+	\*-----------------------------------------------------*/
+	CHECK_SIZE_CODE;
+	switch (type_code) {	/* now, decide what to do with the token */
+
+	case form_feed:	/* found a form feed in line */
+	    ps.use_ff = true;	/* a form feed is treated much like a newline */
+	    dump_line();
+	    ps.want_blank = false;
+	    break;
+
+	case newline:
+	    if (ps.last_token != comma || ps.p_l_follow > 0
+		    || !ps.leave_comma || ps.block_init || !break_comma || s_com != e_com) {
+		dump_line();
+		ps.want_blank = false;
+	    }
+	    ++line_no;		/* keep track of input line number */
+	    break;
+
+	case lparen:		/* got a '(' or '[' */
+	    ++ps.p_l_follow;	/* count parens to make Healy happy */
+	    if (ps.want_blank && *token != '[' &&
+		    (ps.last_token != ident || proc_calls_space
+	      || (ps.its_a_keyword && (!ps.sizeof_keyword || Bill_Shannon))))
+		*e_code++ = ' ';
+	    if (ps.in_decl && !ps.block_init)
+		if (troff && !ps.dumped_decl_indent && !is_procname && ps.last_token == decl) {
+		    ps.dumped_decl_indent = 1;
+		    sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token);
+		    e_code += strlen(e_code);
+		}
+		else {
+		    while ((e_code - s_code) < dec_ind) {
+			CHECK_SIZE_CODE;
+			*e_code++ = ' ';
+		    }
+		    *e_code++ = token[0];
+		}
+	    else
+		*e_code++ = token[0];
+	    ps.paren_indents[ps.p_l_follow - 1] = e_code - s_code;
+	    if (sp_sw && ps.p_l_follow == 1 && extra_expression_indent
+		    && ps.paren_indents[0] < 2 * ps.ind_size)
+		ps.paren_indents[0] = 2 * ps.ind_size;
+	    ps.want_blank = false;
+	    if (ps.in_or_st && *token == '(' && ps.tos <= 2) {
+		/*
+		 * this is a kluge to make sure that declarations will be
+		 * aligned right if proc decl has an explicit type on it, i.e.
+		 * "int a(x) {..."
+		 */
+		parse(semicolon);	/* I said this was a kluge... */
+		ps.in_or_st = false;	/* turn off flag for structure decl or
+					 * initialization */
+	    }
+	    if (ps.sizeof_keyword)
+		ps.sizeof_mask |= 1 << ps.p_l_follow;
+	    break;
+
+	case rparen:		/* got a ')' or ']' */
+	    rparen_count--;
+	    if (ps.cast_mask & (1 << ps.p_l_follow) & ~ps.sizeof_mask) {
+		ps.last_u_d = true;
+		ps.cast_mask &= (1 << ps.p_l_follow) - 1;
+	    }
+	    ps.sizeof_mask &= (1 << ps.p_l_follow) - 1;
+	    if (--ps.p_l_follow < 0) {
+		ps.p_l_follow = 0;
+		diag(0, "Extra %c", *token);
+	    }
+	    if (e_code == s_code)	/* if the paren starts the line */
+		ps.paren_level = ps.p_l_follow;	/* then indent it */
+
+	    *e_code++ = token[0];
+	    ps.want_blank = true;
+
+	    if (sp_sw && (ps.p_l_follow == 0)) {	/* check for end of if
+							 * (...), or some such */
+		sp_sw = false;
+		force_nl = true;/* must force newline after if */
+		ps.last_u_d = true;	/* inform lexi that a following
+					 * operator is unary */
+		ps.in_stmt = false;	/* dont use stmt continuation
+					 * indentation */
+
+		parse(hd_type);	/* let parser worry about if, or whatever */
+	    }
+	    ps.search_brace = btype_2;	/* this should insure that constructs
+					 * such as main(){...} and int[]{...}
+					 * have their braces put in the right
+					 * place */
+	    break;
+
+	case unary_op:		/* this could be any unary operation */
+	    if (ps.want_blank)
+		*e_code++ = ' ';
+
+	    if (troff && !ps.dumped_decl_indent && ps.in_decl && !is_procname) {
+		sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token);
+		ps.dumped_decl_indent = 1;
+		e_code += strlen(e_code);
+	    }
+	    else {
+		char       *res = token;
+
+		if (ps.in_decl && !ps.block_init) {	/* if this is a unary op
+							 * in a declaration, we
+							 * should indent this
+							 * token */
+		    for (i = 0; token[i]; ++i);	/* find length of token */
+		    while ((e_code - s_code) < (dec_ind - i)) {
+			CHECK_SIZE_CODE;
+			*e_code++ = ' ';	/* pad it */
+		    }
+		}
+		if (troff && token[0] == '-' && token[1] == '>')
+		    res = "\\(->";
+		for (t_ptr = res; *t_ptr; ++t_ptr) {
+		    CHECK_SIZE_CODE;
+		    *e_code++ = *t_ptr;
+		}
+	    }
+	    ps.want_blank = false;
+	    break;
+
+	case binary_op:	/* any binary operation */
+	    if (ps.want_blank)
+		*e_code++ = ' ';
+	    {
+		char       *res = token;
+
+		if (troff)
+		    switch (token[0]) {
+		    case '<':
+			if (token[1] == '=')
+			    res = "\\(<=";
+			break;
+		    case '>':
+			if (token[1] == '=')
+			    res = "\\(>=";
+			break;
+		    case '!':
+			if (token[1] == '=')
+			    res = "\\(!=";
+			break;
+		    case '|':
+			if (token[1] == '|')
+			    res = "\\(br\\(br";
+			else if (token[1] == 0)
+			    res = "\\(br";
+			break;
+		    }
+		for (t_ptr = res; *t_ptr; ++t_ptr) {
+		    CHECK_SIZE_CODE;
+		    *e_code++ = *t_ptr;	/* move the operator */
+		}
+	    }
+	    ps.want_blank = true;
+	    break;
+
+	case postop:		/* got a trailing ++ or -- */
+	    *e_code++ = token[0];
+	    *e_code++ = token[1];
+	    ps.want_blank = true;
+	    break;
+
+	case question:		/* got a ? */
+	    squest++;		/* this will be used when a later colon
+				 * appears so we can distinguish the
+				 * <c>?<n>:<n> construct */
+	    if (ps.want_blank)
+		*e_code++ = ' ';
+	    *e_code++ = '?';
+	    ps.want_blank = true;
+	    break;
+
+	case casestmt:		/* got word 'case' or 'default' */
+	    scase = true;	/* so we can process the later colon properly */
+	    goto copy_id;
+
+	case colon:		/* got a ':' */
+	    if (squest > 0) {	/* it is part of the <c>?<n>: <n> construct */
+		--squest;
+		if (ps.want_blank)
+		    *e_code++ = ' ';
+		*e_code++ = ':';
+		ps.want_blank = true;
+		break;
+	    }
+	    if (ps.in_decl) {
+		*e_code++ = ':';
+		ps.want_blank = false;
+		break;
+	    }
+	    ps.in_stmt = false;	/* seeing a label does not imply we are in a
+				 * stmt */
+	    for (t_ptr = s_code; *t_ptr; ++t_ptr)
+		*e_lab++ = *t_ptr;	/* turn everything so far into a label */
+	    e_code = s_code;
+	    *e_lab++ = ':';
+	    *e_lab++ = ' ';
+	    *e_lab = '\0';
+
+	    force_nl = ps.pcase = scase;	/* ps.pcase will be used by
+						 * dump_line to decide how to
+						 * indent the label. force_nl
+						 * will force a case n: to be
+						 * on a line by itself */
+	    scase = false;
+	    ps.want_blank = false;
+	    break;
+
+	case semicolon:	/* got a ';' */
+	    ps.in_or_st = false;/* we are not in an initialization or
+				 * structure declaration */
+	    scase = false;	/* these will only need resetting in a error */
+	    squest = 0;
+	    if (ps.last_token == rparen && rparen_count == 0)
+		ps.in_parameter_declaration = 0;
+	    ps.cast_mask = 0;
+	    ps.sizeof_mask = 0;
+	    ps.block_init = 0;
+	    ps.block_init_level = 0;
+	    ps.just_saw_decl--;
+
+	    if (ps.in_decl && s_code == e_code && !ps.block_init)
+		while ((e_code - s_code) < (dec_ind - 1)) {
+		    CHECK_SIZE_CODE;
+		    *e_code++ = ' ';
+		}
+
+	    ps.in_decl = (ps.dec_nest > 0);	/* if we were in a first level
+						 * structure declaration, we
+						 * arent any more */
+
+	    if ((!sp_sw || hd_type != forstmt) && ps.p_l_follow > 0) {
+
+		/*
+		 * This should be true iff there were unbalanced parens in the
+		 * stmt.  It is a bit complicated, because the semicolon might
+		 * be in a for stmt
+		 */
+		diag(1, "Unbalanced parens");
+		ps.p_l_follow = 0;
+		if (sp_sw) {	/* this is a check for a if, while, etc. with
+				 * unbalanced parens */
+		    sp_sw = false;
+		    parse(hd_type);	/* dont lose the if, or whatever */
+		}
+	    }
+	    *e_code++ = ';';
+	    ps.want_blank = true;
+	    ps.in_stmt = (ps.p_l_follow > 0);	/* we are no longer in the
+						 * middle of a stmt */
+
+	    if (!sp_sw) {	/* if not if for (;;) */
+		parse(semicolon);	/* let parser know about end of stmt */
+		force_nl = true;/* force newline after a end of stmt */
+	    }
+	    break;
+
+	case lbrace:		/* got a '{' */
+	    ps.in_stmt = false;	/* dont indent the {} */
+	    if (!ps.block_init)
+		force_nl = true;/* force other stuff on same line as '{' onto
+				 * new line */
+	    else if (ps.block_init_level <= 0)
+		ps.block_init_level = 1;
+	    else
+		ps.block_init_level++;
+
+	    if (s_code != e_code && !ps.block_init) {
+		if (!btype_2) {
+		    dump_line();
+		    ps.want_blank = false;
+		}
+		else if (ps.in_parameter_declaration && !ps.in_or_st) {
+		    ps.i_l_follow = 0;
+		    dump_line();
+		    ps.want_blank = false;
+		}
+	    }
+	    if (ps.in_parameter_declaration)
+		prefix_blankline_requested = 0;
+
+	    if (ps.p_l_follow > 0) {	/* check for preceeding unbalanced
+					 * parens */
+		diag(1, "Unbalanced parens");
+		ps.p_l_follow = 0;
+		if (sp_sw) {	/* check for unclosed if, for, etc. */
+		    sp_sw = false;
+		    parse(hd_type);
+		    ps.ind_level = ps.i_l_follow;
+		}
+	    }
+	    if (s_code == e_code)
+		ps.ind_stmt = false;	/* dont put extra indentation on line
+					 * with '{' */
+	    if (ps.in_decl && ps.in_or_st) {	/* this is either a structure
+						 * declaration or an init */
+		di_stack[ps.dec_nest++] = dec_ind;
+		/* ?		dec_ind = 0; */
+	    }
+	    else {
+		ps.decl_on_line = false;	/* we cant be in the middle of
+						 * a declaration, so dont do
+						 * special indentation of
+						 * comments */
+		if (blanklines_after_declarations_at_proctop
+			&& ps.in_parameter_declaration)
+		    postfix_blankline_requested = 1;
+		ps.in_parameter_declaration = 0;
+	    }
+	    dec_ind = 0;
+	    parse(lbrace);	/* let parser know about this */
+	    if (ps.want_blank)	/* put a blank before '{' if '{' is not at
+				 * start of line */
+		*e_code++ = ' ';
+	    ps.want_blank = false;
+	    *e_code++ = '{';
+	    ps.just_saw_decl = 0;
+	    break;
+
+	case rbrace:		/* got a '}' */
+	    if (ps.p_stack[ps.tos] == decl && !ps.block_init)	/* semicolons can be
+								 * omitted in
+								 * declarations */
+		parse(semicolon);
+	    if (ps.p_l_follow) {/* check for unclosed if, for, else. */
+		diag(1, "Unbalanced parens");
+		ps.p_l_follow = 0;
+		sp_sw = false;
+	    }
+	    ps.just_saw_decl = 0;
+	    ps.block_init_level--;
+	    if (s_code != e_code && !ps.block_init) {	/* '}' must be first on
+							 * line */
+		if (verbose)
+		    diag(0, "Line broken");
+		dump_line();
+	    }
+	    *e_code++ = '}';
+	    ps.want_blank = true;
+	    ps.in_stmt = ps.ind_stmt = false;
+	    if (ps.dec_nest > 0) {	/* we are in multi-level structure
+					 * declaration */
+		dec_ind = di_stack[--ps.dec_nest];
+		if (ps.dec_nest == 0 && !ps.in_parameter_declaration)
+		    ps.just_saw_decl = 2;
+		ps.in_decl = true;
+	    }
+	    prefix_blankline_requested = 0;
+	    parse(rbrace);	/* let parser know about this */
+	    ps.search_brace = cuddle_else && ps.p_stack[ps.tos] == ifhead
+		&& ps.il[ps.tos] >= ps.ind_level;
+	    if (ps.tos <= 1 && blanklines_after_procs && ps.dec_nest <= 0)
+		postfix_blankline_requested = 1;
+	    break;
+
+	case swstmt:		/* got keyword "switch" */
+	    sp_sw = true;
+	    hd_type = swstmt;	/* keep this for when we have seen the
+				 * expression */
+	    goto copy_id;	/* go move the token into buffer */
+
+	case sp_paren:		/* token is if, while, for */
+	    sp_sw = true;	/* the interesting stuff is done after the
+				 * expression is scanned */
+	    hd_type = (*token == 'i' ? ifstmt :
+		       (*token == 'w' ? whilestmt : forstmt));
+
+	    /*
+	     * remember the type of header for later use by parser
+	     */
+	    goto copy_id;	/* copy the token into line */
+
+	case sp_nparen:	/* got else, do */
+	    ps.in_stmt = false;
+	    if (*token == 'e') {
+		if (e_code != s_code && (!cuddle_else || e_code[-1] != '}')) {
+		    if (verbose)
+			diag(0, "Line broken");
+		    dump_line();/* make sure this starts a line */
+		    ps.want_blank = false;
+		}
+		force_nl = true;/* also, following stuff must go onto new line */
+		last_else = 1;
+		parse(elselit);
+	    }
+	    else {
+		if (e_code != s_code) {	/* make sure this starts a line */
+		    if (verbose)
+			diag(0, "Line broken");
+		    dump_line();
+		    ps.want_blank = false;
+		}
+		force_nl = true;/* also, following stuff must go onto new line */
+		last_else = 0;
+		parse(dolit);
+	    }
+	    goto copy_id;	/* move the token into line */
+
+	case decl:		/* we have a declaration type (int, register,
+				 * etc.) */
+	    parse(decl);	/* let parser worry about indentation */
+	    if (ps.last_token == rparen && ps.tos <= 1) {
+		ps.in_parameter_declaration = 1;
+		if (s_code != e_code) {
+		    dump_line();
+		    ps.want_blank = 0;
+		}
+	    }
+	    if (ps.in_parameter_declaration && ps.indent_parameters && ps.dec_nest == 0) {
+		ps.ind_level = ps.i_l_follow = 1;
+		ps.ind_stmt = 0;
+	    }
+	    ps.in_or_st = true;	/* this might be a structure or initialization
+				 * declaration */
+	    ps.in_decl = ps.decl_on_line = true;
+	    if ( /* !ps.in_or_st && */ ps.dec_nest <= 0)
+		ps.just_saw_decl = 2;
+	    prefix_blankline_requested = 0;
+	    for (i = 0; token[i++];);	/* get length of token */
+
+	    /*
+	     * dec_ind = e_code - s_code + (ps.decl_indent>i ? ps.decl_indent
+	     * : i);
+	     */
+	    dec_ind = ps.decl_indent > 0 ? ps.decl_indent : i;
+	    goto copy_id;
+
+	case ident:		/* got an identifier or constant */
+	    if (ps.in_decl) {	/* if we are in a declaration, we must indent
+				 * identifier */
+		if (ps.want_blank)
+		    *e_code++ = ' ';
+		ps.want_blank = false;
+		if (is_procname == 0 || !procnames_start_line) {
+		    if (!ps.block_init)
+			if (troff && !ps.dumped_decl_indent) {
+			    sprintf(e_code, "\n.De %dp+\200p\n", dec_ind * 7);
+			    ps.dumped_decl_indent = 1;
+			    e_code += strlen(e_code);
+			}
+			else
+			    while ((e_code - s_code) < dec_ind) {
+				CHECK_SIZE_CODE;
+				*e_code++ = ' ';
+			    }
+		}
+		else {
+		    if (dec_ind && s_code != e_code)
+			dump_line();
+		    dec_ind = 0;
+		    ps.want_blank = false;
+		}
+	    }
+	    else if (sp_sw && ps.p_l_follow == 0) {
+		sp_sw = false;
+		force_nl = true;
+		ps.last_u_d = true;
+		ps.in_stmt = false;
+		parse(hd_type);
+	    }
+    copy_id:
+	    if (ps.want_blank)
+		*e_code++ = ' ';
+	    if (troff && ps.its_a_keyword) {
+		e_code = chfont(&bodyf, &keywordf, e_code);
+		for (t_ptr = token; *t_ptr; ++t_ptr) {
+		    CHECK_SIZE_CODE;
+		    *e_code++ = keywordf.allcaps && islower(*t_ptr)
+			? toupper(*t_ptr) : *t_ptr;
+		}
+		e_code = chfont(&keywordf, &bodyf, e_code);
+	    }
+	    else
+		for (t_ptr = token; *t_ptr; ++t_ptr) {
+		    CHECK_SIZE_CODE;
+		    *e_code++ = *t_ptr;
+		}
+	    ps.want_blank = true;
+	    break;
+
+	case period:		/* treat a period kind of like a binary
+				 * operation */
+	    *e_code++ = '.';	/* move the period into line */
+	    ps.want_blank = false;	/* dont put a blank after a period */
+	    break;
+
+	case comma:
+	    ps.want_blank = (s_code != e_code);	/* only put blank after comma
+						 * if comma does not start the
+						 * line */
+	    if (ps.in_decl && is_procname == 0 && !ps.block_init)
+		while ((e_code - s_code) < (dec_ind - 1)) {
+		    CHECK_SIZE_CODE;
+		    *e_code++ = ' ';
+		}
+
+	    *e_code++ = ',';
+	    if (ps.p_l_follow == 0) {
+		if (ps.block_init_level <= 0)
+		    ps.block_init = 0;
+		if (break_comma && (!ps.leave_comma || compute_code_target() + (e_code - s_code) > max_col - 8))
+		    force_nl = true;
+	    }
+	    break;
+
+	case preesc:		/* got the character '#' */
+	    if ((s_com != e_com) ||
+		    (s_lab != e_lab) ||
+		    (s_code != e_code))
+		dump_line();
+	    *e_lab++ = '#';	/* move whole line to 'label' buffer */
+	    {
+		int         in_comment = 0;
+		int         com_start = 0;
+		char        quote = 0;
+		int         com_end = 0;
+
+		while (*buf_ptr == ' ' || *buf_ptr == '\t') {
+		    buf_ptr++;
+		    if (buf_ptr >= buf_end)
+			fill_buffer();
+		}
+		while (*buf_ptr != '\n' || in_comment) {
+		    CHECK_SIZE_LAB;
+		    *e_lab = *buf_ptr++;
+		    if (buf_ptr >= buf_end)
+			fill_buffer();
+		    switch (*e_lab++) {
+		    case BACKSLASH:
+			if (troff)
+			    *e_lab++ = BACKSLASH;
+			if (!in_comment) {
+			    *e_lab++ = *buf_ptr++;
+			    if (buf_ptr >= buf_end)
+				fill_buffer();
+			}
+			break;
+		    case '/':
+			if (*buf_ptr == '*' && !in_comment && !quote) {
+			    in_comment = 1;
+			    *e_lab++ = *buf_ptr++;
+			    com_start = e_lab - s_lab - 2;
+			}
+			break;
+		    case '"':
+			if (quote == '"')
+			    quote = 0;
+			break;
+		    case '\'':
+			if (quote == '\'')
+			    quote = 0;
+			break;
+		    case '*':
+			if (*buf_ptr == '/' && in_comment) {
+			    in_comment = 0;
+			    *e_lab++ = *buf_ptr++;
+			    com_end = e_lab - s_lab;
+			}
+			break;
+		    }
+		}
+
+		while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
+		    e_lab--;
+		if (e_lab - s_lab == com_end && bp_save == 0) {	/* comment on
+								 * preprocessor line */
+		    if (sc_end == 0)	/* if this is the first comment, we
+					 * must set up the buffer */
+			sc_end = &(save_com[0]);
+		    else {
+			*sc_end++ = '\n';	/* add newline between
+						 * comments */
+			*sc_end++ = ' ';
+			--line_no;
+		    }
+		    bcopy(s_lab + com_start, sc_end, com_end - com_start);
+		    sc_end += com_end - com_start;
+		    if (sc_end >= &save_com[sc_size])
+			abort();
+		    e_lab = s_lab + com_start;
+		    while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
+			e_lab--;
+		    bp_save = buf_ptr;	/* save current input buffer */
+		    be_save = buf_end;
+		    buf_ptr = save_com;	/* fix so that subsequent calls to
+					 * lexi will take tokens out of
+					 * save_com */
+		    *sc_end++ = ' ';	/* add trailing blank, just in case */
+		    buf_end = sc_end;
+		    sc_end = 0;
+		}
+		*e_lab = '\0';	/* null terminate line */
+		ps.pcase = false;
+	    }
+
+	    if (strncmp(s_lab, "#if", 3) == 0) {
+		if (blanklines_around_conditional_compilation) {
+		    register    c;
+		    prefix_blankline_requested++;
+		    while ((c = getc(input)) == '\n');
+		    ungetc(c, input);
+		}
+		if (ifdef_level < sizeof state_stack / sizeof state_stack[0]) {
+		    match_state[ifdef_level].tos = -1;
+		    state_stack[ifdef_level++] = ps;
+		}
+		else
+		    diag(1, "#if stack overflow");
+	    }
+	    else if (strncmp(s_lab, "#else", 5) == 0)
+		if (ifdef_level <= 0)
+		    diag(1, "Unmatched #else");
+		else {
+		    match_state[ifdef_level - 1] = ps;
+		    ps = state_stack[ifdef_level - 1];
+		}
+	    else if (strncmp(s_lab, "#endif", 6) == 0) {
+		if (ifdef_level <= 0)
+		    diag(1, "Unmatched #endif");
+		else {
+		    ifdef_level--;
+
+#ifdef undef
+		    /*
+		     * This match needs to be more intelligent before the
+		     * message is useful
+		     */
+		    if (match_state[ifdef_level].tos >= 0
+			  && bcmp(&ps, &match_state[ifdef_level], sizeof ps))
+			diag(0, "Syntactically inconsistant #ifdef alternatives.");
+#endif
+		}
+		if (blanklines_around_conditional_compilation) {
+		    postfix_blankline_requested++;
+		    n_real_blanklines = 0;
+		}
+	    }
+	    break;		/* subsequent processing of the newline
+				 * character will cause the line to be printed */
+
+	case comment:		/* we have gotten a /*  this is a biggie */
+	    if (flushed_nl) {	/* we should force a broken line here */
+		flushed_nl = false;
+		dump_line();
+		ps.want_blank = false;	/* dont insert blank at line start */
+		force_nl = false;
+	    }
+	    pr_comment();
+	    break;
+	}			/* end of big switch stmt */
+
+	*e_code = '\0';		/* make sure code section is null terminated */
+	if (type_code != comment && type_code != newline && type_code != preesc)
+	    ps.last_token = type_code;
+    }				/* end of main while (1) loop */
+}
+
+/*
+ * copy input file to backup file if in_name is /blah/blah/blah/file, then
+ * backup file will be ".Bfile" then make the backup file the input and
+ * original input file the output
+ */
+bakcopy()
+{
+    int         n,
+                bakchn;
+    char        buff[8 * 1024];
+    register char *p;
+
+    /* construct file name .Bfile */
+    for (p = in_name; *p; p++);	/* skip to end of string */
+    while (p > in_name && *p != '/')	/* find last '/' */
+	p--;
+    if (*p == '/')
+	p++;
+    sprintf(bakfile, "%s.BAK", p);
+
+    /* copy in_name to backup file */
+    bakchn = creat(bakfile, 0600);
+    if (bakchn < 0)
+	err(bakfile);
+    while (n = read(fileno(input), buff, sizeof buff))
+	if (write(bakchn, buff, n) != n)
+	    err(bakfile);
+    if (n < 0)
+	err(in_name);
+    close(bakchn);
+    fclose(input);
+
+    /* re-open backup file as the input file */
+    input = fopen(bakfile, "r");
+    if (input == 0)
+	err(bakfile);
+    /* now the original input file will be the output */
+    output = fopen(in_name, "w");
+    if (output == 0) {
+	unlink(bakfile);
+	err(in_name);
+    }
+}
+
+err(msg)
+	char *msg;
+{
+	extern int errno;
+	char *strerror();
+
+	(void)fprintf(stderr, "indent: %s: %s\n", msg, strerror(errno));
+	exit(1);
+}
diff --git a/usr.bin/indent/indent_codes.h b/usr.bin/indent/indent_codes.h
new file mode 100644
index 0000000..8373d4e
--- /dev/null
+++ b/usr.bin/indent/indent_codes.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)indent_codes.h	8.1 (Berkeley) 6/6/93
+ */
+
+#define newline		1
+#define lparen		2
+#define rparen		3
+#define unary_op	4
+#define binary_op	5
+#define postop		6
+#define question	7
+#define casestmt	8
+#define colon		9
+#define semicolon	10
+#define lbrace		11
+#define rbrace		12
+#define ident		13
+#define comma		14
+#define comment		15
+#define swstmt		16
+#define preesc		17
+#define form_feed	18
+#define decl		19
+#define sp_paren	20
+#define sp_nparen	21
+#define ifstmt		22
+#define whilestmt	23
+#define forstmt		24
+#define stmt		25
+#define stmtl		26
+#define elselit		27
+#define dolit		28
+#define dohead		29
+#define ifhead		30
+#define elsehead	31
+#define period		32
diff --git a/usr.bin/indent/indent_globs.h b/usr.bin/indent/indent_globs.h
new file mode 100644
index 0000000..8f911ec
--- /dev/null
+++ b/usr.bin/indent/indent_globs.h
@@ -0,0 +1,310 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)indent_globs.h	8.1 (Berkeley) 6/6/93
+ */
+
+#define BACKSLASH '\\'
+#define bufsize 200		/* size of internal buffers */
+#define sc_size 5000		/* size of save_com buffer */
+#define label_offset 2		/* number of levels a label is placed to left
+				 * of code */
+
+#define tabsize 8		/* the size of a tab */
+#define tabmask 0177770		/* mask used when figuring length of lines
+				 * with tabs */
+
+
+#define false 0
+#define true  1
+
+
+FILE       *input;		/* the fid for the input file */
+FILE       *output;		/* the output file */
+
+#define CHECK_SIZE_CODE \
+	if (e_code >= l_code) { \
+	    register nsize = l_code-s_code+400; \
+	    codebuf = (char *) realloc(codebuf, nsize); \
+	    e_code = codebuf + (e_code-s_code) + 1; \
+	    l_code = codebuf + nsize - 5; \
+	    s_code = codebuf + 1; \
+	}
+#define CHECK_SIZE_COM \
+	if (e_com >= l_com) { \
+	    register nsize = l_com-s_com+400; \
+	    combuf = (char *) realloc(combuf, nsize); \
+	    e_com = combuf + (e_com-s_com) + 1; \
+	    l_com = combuf + nsize - 5; \
+	    s_com = combuf + 1; \
+	}
+#define CHECK_SIZE_LAB \
+	if (e_lab >= l_lab) { \
+	    register nsize = l_lab-s_lab+400; \
+	    labbuf = (char *) realloc(labbuf, nsize); \
+	    e_lab = labbuf + (e_lab-s_lab) + 1; \
+	    l_lab = labbuf + nsize - 5; \
+	    s_lab = labbuf + 1; \
+	}
+#define CHECK_SIZE_TOKEN \
+	if (e_token >= l_token) { \
+	    register nsize = l_token-s_token+400; \
+	    tokenbuf = (char *) realloc(tokenbuf, nsize); \
+	    e_token = tokenbuf + (e_token-s_token) + 1; \
+	    l_token = tokenbuf + nsize - 5; \
+	    s_token = tokenbuf + 1; \
+	}
+
+char       *labbuf;		/* buffer for label */
+char       *s_lab;		/* start ... */
+char       *e_lab;		/* .. and end of stored label */
+char       *l_lab;		/* limit of label buffer */
+
+char       *codebuf;		/* buffer for code section */
+char       *s_code;		/* start ... */
+char       *e_code;		/* .. and end of stored code */
+char       *l_code;		/* limit of code section */
+
+char       *combuf;		/* buffer for comments */
+char       *s_com;		/* start ... */
+char       *e_com;		/* ... and end of stored comments */
+char       *l_com;		/* limit of comment buffer */
+
+#define token s_token
+char       *tokenbuf;		/* the last token scanned */
+char	   *s_token;
+char       *e_token;
+char	   *l_token;
+
+char       *in_buffer;		/* input buffer */
+char	   *in_buffer_limit;	/* the end of the input buffer */
+char       *buf_ptr;		/* ptr to next character to be taken from
+				 * in_buffer */
+char       *buf_end;		/* ptr to first after last char in in_buffer */
+
+char        save_com[sc_size];	/* input text is saved here when looking for
+				 * the brace after an if, while, etc */
+char       *sc_end;		/* pointer into save_com buffer */
+
+char       *bp_save;		/* saved value of buf_ptr when taking input
+				 * from save_com */
+char       *be_save;		/* similarly saved value of buf_end */
+
+
+int         pointer_as_binop;
+int         blanklines_after_declarations;
+int         blanklines_before_blockcomments;
+int         blanklines_after_procs;
+int         blanklines_around_conditional_compilation;
+int         swallow_optional_blanklines;
+int         n_real_blanklines;
+int         prefix_blankline_requested;
+int         postfix_blankline_requested;
+int         break_comma;	/* when true and not in parens, break after a
+				 * comma */
+int         btype_2;		/* when true, brace should be on same line as
+				 * if, while, etc */
+float       case_ind;		/* indentation level to be used for a "case
+				 * n:" */
+int         code_lines;		/* count of lines with code */
+int         had_eof;		/* set to true when input is exhausted */
+int         line_no;		/* the current line number. */
+int         max_col;		/* the maximum allowable line length */
+int         verbose;		/* when true, non-essential error messages are
+				 * printed */
+int         cuddle_else;	/* true if else should cuddle up to '}' */
+int         star_comment_cont;	/* true iff comment continuation lines should
+				 * have stars at the beginning of each line. */
+int         comment_delimiter_on_blankline;
+int         troff;		/* true iff were generating troff input */
+int         procnames_start_line;	/* if true, the names of procedures
+					 * being defined get placed in column
+					 * 1 (ie. a newline is placed between
+					 * the type of the procedure and its
+					 * name) */
+int         proc_calls_space;	/* If true, procedure calls look like:
+				 * foo(bar) rather than foo (bar) */
+int         format_col1_comments;	/* If comments which start in column 1
+					 * are to be magically reformatted
+					 * (just like comments that begin in
+					 * later columns) */
+int         inhibit_formatting;	/* true if INDENT OFF is in effect */
+int         suppress_blanklines;/* set iff following blanklines should be
+				 * suppressed */
+int         continuation_indent;/* set to the indentation between the edge of
+				 * code and continuation lines */
+int         lineup_to_parens;	/* if true, continued code within parens will
+				 * be lined up to the open paren */
+int         Bill_Shannon;	/* true iff a blank should always be inserted
+				 * after sizeof */
+int         blanklines_after_declarations_at_proctop;	/* This is vaguely
+							 * similar to
+							 * blanklines_after_decla
+							 * rations except that
+							 * it only applies to
+							 * the first set of
+							 * declarations in a
+							 * procedure (just after
+							 * the first '{') and it
+							 * causes a blank line
+							 * to be generated even
+							 * if there are no
+							 * declarations */
+int         block_comment_max_col;
+int         extra_expression_indent;	/* True if continuation lines from the
+					 * expression part of "if(e)",
+					 * "while(e)", "for(e;e;e)" should be
+					 * indented an extra tab stop so that
+					 * they don't conflict with the code
+					 * that follows */
+
+/* -troff font state information */
+
+struct fstate {
+    char        font[4];
+    char        size;
+    int         allcaps:1;
+};
+char       *chfont();
+
+struct fstate
+            keywordf,		/* keyword font */
+            stringf,		/* string font */
+            boxcomf,		/* Box comment font */
+            blkcomf,		/* Block comment font */
+            scomf,		/* Same line comment font */
+            bodyf;		/* major body font */
+
+
+#define STACKSIZE 150
+
+struct parser_state {
+    int         last_token;
+    struct fstate cfont;	/* Current font */
+    int         p_stack[STACKSIZE];	/* this is the parsers stack */
+    int         il[STACKSIZE];	/* this stack stores indentation levels */
+    float       cstk[STACKSIZE];/* used to store case stmt indentation levels */
+    int         box_com;	/* set to true when we are in a "boxed"
+				 * comment. In that case, the first non-blank
+				 * char should be lined up with the / in /* */
+    int         comment_delta,
+                n_comment_delta;
+    int         cast_mask;	/* indicates which close parens close off
+				 * casts */
+    int         sizeof_mask;	/* indicates which close parens close off
+				 * sizeof''s */
+    int         block_init;	/* true iff inside a block initialization */
+    int         block_init_level;	/* The level of brace nesting in an
+					 * initialization */
+    int         last_nl;	/* this is true if the last thing scanned was
+				 * a newline */
+    int         in_or_st;	/* Will be true iff there has been a
+				 * declarator (e.g. int or char) and no left
+				 * paren since the last semicolon. When true,
+				 * a '{' is starting a structure definition or
+				 * an initialization list */
+    int         bl_line;	/* set to 1 by dump_line if the line is blank */
+    int         col_1;		/* set to true if the last token started in
+				 * column 1 */
+    int         com_col;	/* this is the column in which the current
+				 * coment should start */
+    int         com_ind;	/* the column in which comments to the right
+				 * of code should start */
+    int         com_lines;	/* the number of lines with comments, set by
+				 * dump_line */
+    int         dec_nest;	/* current nesting level for structure or init */
+    int         decl_com_ind;	/* the column in which comments after
+				 * declarations should be put */
+    int         decl_on_line;	/* set to true if this line of code has part
+				 * of a declaration on it */
+    int         i_l_follow;	/* the level to which ind_level should be set
+				 * after the current line is printed */
+    int         in_decl;	/* set to true when we are in a declaration
+				 * stmt.  The processing of braces is then
+				 * slightly different */
+    int         in_stmt;	/* set to 1 while in a stmt */
+    int         ind_level;	/* the current indentation level */
+    int         ind_size;	/* the size of one indentation level */
+    int         ind_stmt;	/* set to 1 if next line should have an extra
+				 * indentation level because we are in the
+				 * middle of a stmt */
+    int         last_u_d;	/* set to true after scanning a token which
+				 * forces a following operator to be unary */
+    int         leave_comma;	/* if true, never break declarations after
+				 * commas */
+    int         ljust_decl;	/* true if declarations should be left
+				 * justified */
+    int         out_coms;	/* the number of comments processed, set by
+				 * pr_comment */
+    int         out_lines;	/* the number of lines written, set by
+				 * dump_line */
+    int         p_l_follow;	/* used to remember how to indent following
+				 * statement */
+    int         paren_level;	/* parenthesization level. used to indent
+				 * within stmts */
+    short       paren_indents[20];	/* column positions of each paren */
+    int         pcase;		/* set to 1 if the current line label is a
+				 * case.  It is printed differently from a
+				 * regular label */
+    int         search_brace;	/* set to true by parse when it is necessary
+				 * to buffer up all info up to the start of a
+				 * stmt after an if, while, etc */
+    int         unindent_displace;	/* comments not to the right of code
+					 * will be placed this many
+					 * indentation levels to the left of
+					 * code */
+    int         use_ff;		/* set to one if the current line should be
+				 * terminated with a form feed */
+    int         want_blank;	/* set to true when the following token should
+				 * be prefixed by a blank. (Said prefixing is
+				 * ignored in some cases.) */
+    int         else_if;	/* True iff else if pairs should be handled
+				 * specially */
+    int         decl_indent;	/* column to indent declared identifiers to */
+    int         its_a_keyword;
+    int         sizeof_keyword;
+    int         dumped_decl_indent;
+    float       case_indent;	/* The distance to indent case labels from the
+				 * switch statement */
+    int         in_parameter_declaration;
+    int         indent_parameters;
+    int         tos;		/* pointer to top of stack */
+    char        procname[100];	/* The name of the current procedure */
+    int         just_saw_decl;
+}           ps;
+
+int         ifdef_level;
+int	    rparen_count;
+struct parser_state state_stack[5];
+struct parser_state match_state[5];
diff --git a/usr.bin/indent/io.c b/usr.bin/indent/io.c
new file mode 100644
index 0000000..4615db2
--- /dev/null
+++ b/usr.bin/indent/io.c
@@ -0,0 +1,625 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)io.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include "indent_globs.h"
+
+
+int         comment_open;
+static      paren_target;
+
+dump_line()
+{				/* dump_line is the routine that actually
+				 * effects the printing of the new source. It
+				 * prints the label section, followed by the
+				 * code section with the appropriate nesting
+				 * level, followed by any comments */
+    register int cur_col,
+                target_col;
+    static      not_first_line;
+
+    if (ps.procname[0]) {
+	if (troff) {
+	    if (comment_open) {
+		comment_open = 0;
+		fprintf(output, ".*/\n");
+	    }
+	    fprintf(output, ".Pr \"%s\"\n", ps.procname);
+	}
+	ps.ind_level = 0;
+	ps.procname[0] = 0;
+    }
+    if (s_code == e_code && s_lab == e_lab && s_com == e_com) {
+	if (suppress_blanklines > 0)
+	    suppress_blanklines--;
+	else {
+	    ps.bl_line = true;
+	    n_real_blanklines++;
+	}
+    }
+    else if (!inhibit_formatting) {
+	suppress_blanklines = 0;
+	ps.bl_line = false;
+	if (prefix_blankline_requested && not_first_line)
+	    if (swallow_optional_blanklines) {
+		if (n_real_blanklines == 1)
+		    n_real_blanklines = 0;
+	    }
+	    else {
+		if (n_real_blanklines == 0)
+		    n_real_blanklines = 1;
+	    }
+	while (--n_real_blanklines >= 0)
+	    putc('\n', output);
+	n_real_blanklines = 0;
+	if (ps.ind_level == 0)
+	    ps.ind_stmt = 0;	/* this is a class A kludge. dont do
+				 * additional statement indentation if we are
+				 * at bracket level 0 */
+
+	if (e_lab != s_lab || e_code != s_code)
+	    ++code_lines;	/* keep count of lines with code */
+
+
+	if (e_lab != s_lab) {	/* print lab, if any */
+	    if (comment_open) {
+		comment_open = 0;
+		fprintf(output, ".*/\n");
+	    }
+	    while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
+		e_lab--;
+	    cur_col = pad_output(1, compute_label_target());
+	    if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0
+				    || strncmp(s_lab, "#endif", 6) == 0)) {
+		register char *s = s_lab;
+		if (e_lab[-1] == '\n') e_lab--;
+		do putc(*s++, output);
+		while (s < e_lab && 'a' <= *s && *s<='z');
+		while ((*s == ' ' || *s == '\t') && s < e_lab)
+		    s++;
+		if (s < e_lab)
+		    fprintf(output, s[0]=='/' && s[1]=='*' ? "\t%.*s" : "\t/* %.*s */",
+			    e_lab - s, s);
+	    }
+	    else fprintf(output, "%.*s", e_lab - s_lab, s_lab);
+	    cur_col = count_spaces(cur_col, s_lab);
+	}
+	else
+	    cur_col = 1;	/* there is no label section */
+
+	ps.pcase = false;
+
+	if (s_code != e_code) {	/* print code section, if any */
+	    register char *p;
+
+	    if (comment_open) {
+		comment_open = 0;
+		fprintf(output, ".*/\n");
+	    }
+	    target_col = compute_code_target();
+	    {
+		register    i;
+
+		for (i = 0; i < ps.p_l_follow; i++)
+		    if (ps.paren_indents[i] >= 0)
+			ps.paren_indents[i] = -(ps.paren_indents[i] + target_col);
+	    }
+	    cur_col = pad_output(cur_col, target_col);
+	    for (p = s_code; p < e_code; p++)
+		if (*p == (char) 0200)
+		    fprintf(output, "%d", target_col * 7);
+		else
+		    putc(*p, output);
+	    cur_col = count_spaces(cur_col, s_code);
+	}
+	if (s_com != e_com)
+	    if (troff) {
+		int         all_here = 0;
+		register char *p;
+
+		if (e_com[-1] == '/' && e_com[-2] == '*')
+		    e_com -= 2, all_here++;
+		while (e_com > s_com && e_com[-1] == ' ')
+		    e_com--;
+		*e_com = 0;
+		p = s_com;
+		while (*p == ' ')
+		    p++;
+		if (p[0] == '/' && p[1] == '*')
+		    p += 2, all_here++;
+		else if (p[0] == '*')
+		    p += p[1] == '/' ? 2 : 1;
+		while (*p == ' ')
+		    p++;
+		if (*p == 0)
+		    goto inhibit_newline;
+		if (comment_open < 2 && ps.box_com) {
+		    comment_open = 0;
+		    fprintf(output, ".*/\n");
+		}
+		if (comment_open == 0) {
+		    if ('a' <= *p && *p <= 'z')
+			*p = *p + 'A' - 'a';
+		    if (e_com - p < 50 && all_here == 2) {
+			register char *follow = p;
+			fprintf(output, "\n.nr C! \\w\1");
+			while (follow < e_com) {
+			    switch (*follow) {
+			    case '\n':
+				putc(' ', output);
+			    case 1:
+				break;
+			    case '\\':
+				putc('\\', output);
+			    default:
+				putc(*follow, output);
+			    }
+			    follow++;
+			}
+			putc(1, output);
+		    }
+		    fprintf(output, "\n./* %dp %d %dp\n",
+			    ps.com_col * 7,
+			    (s_code != e_code || s_lab != e_lab) - ps.box_com,
+			    target_col * 7);
+		}
+		comment_open = 1 + ps.box_com;
+		while (*p) {
+		    if (*p == BACKSLASH)
+			putc(BACKSLASH, output);
+		    putc(*p++, output);
+		}
+	    }
+	    else {		/* print comment, if any */
+		register    target = ps.com_col;
+		register char *com_st = s_com;
+
+		target += ps.comment_delta;
+		while (*com_st == '\t')
+		    com_st++, target += 8;	/* ? */
+		while (target <= 0)
+		    if (*com_st == ' ')
+			target++, com_st++;
+		    else if (*com_st == '\t')
+			target = ((target - 1) & ~7) + 9, com_st++;
+		    else
+			target = 1;
+		if (cur_col > target) {	/* if comment cant fit on this line,
+					 * put it on next line */
+		    putc('\n', output);
+		    cur_col = 1;
+		    ++ps.out_lines;
+		}
+		while (e_com > com_st && isspace(e_com[-1]))
+		    e_com--;
+		cur_col = pad_output(cur_col, target);
+		if (!ps.box_com) {
+		    if (star_comment_cont && (com_st[1] != '*' || e_com <= com_st + 1))
+			if (com_st[1] == ' ' && com_st[0] == ' ' && e_com > com_st + 1)
+			    com_st[1] = '*';
+			else
+			    fwrite(" * ", com_st[0] == '\t' ? 2 : com_st[0] == '*' ? 1 : 3, 1, output);
+		}
+		fwrite(com_st, e_com - com_st, 1, output);
+		ps.comment_delta = ps.n_comment_delta;
+		cur_col = count_spaces(cur_col, com_st);
+		++ps.com_lines;	/* count lines with comments */
+	    }
+	if (ps.use_ff)
+	    putc('\014', output);
+	else
+	    putc('\n', output);
+inhibit_newline:
+	++ps.out_lines;
+	if (ps.just_saw_decl == 1 && blanklines_after_declarations) {
+	    prefix_blankline_requested = 1;
+	    ps.just_saw_decl = 0;
+	}
+	else
+	    prefix_blankline_requested = postfix_blankline_requested;
+	postfix_blankline_requested = 0;
+    }
+    ps.decl_on_line = ps.in_decl;	/* if we are in the middle of a
+					 * declaration, remember that fact for
+					 * proper comment indentation */
+    ps.ind_stmt = ps.in_stmt & ~ps.in_decl;	/* next line should be
+						 * indented if we have not
+						 * completed this stmt and if
+						 * we are not in the middle of
+						 * a declaration */
+    ps.use_ff = false;
+    ps.dumped_decl_indent = 0;
+    *(e_lab = s_lab) = '\0';	/* reset buffers */
+    *(e_code = s_code) = '\0';
+    *(e_com = s_com) = '\0';
+    ps.ind_level = ps.i_l_follow;
+    ps.paren_level = ps.p_l_follow;
+    paren_target = -ps.paren_indents[ps.paren_level - 1];
+    not_first_line = 1;
+    return;
+}
+
+compute_code_target()
+{
+    register    target_col = ps.ind_size * ps.ind_level + 1;
+
+    if (ps.paren_level)
+	if (!lineup_to_parens)
+	    target_col += continuation_indent * ps.paren_level;
+	else {
+	    register    w;
+	    register    t = paren_target;
+
+	    if ((w = count_spaces(t, s_code) - max_col) > 0
+		    && count_spaces(target_col, s_code) <= max_col) {
+		t -= w + 1;
+		if (t > target_col)
+		    target_col = t;
+	    }
+	    else
+		target_col = t;
+	}
+    else if (ps.ind_stmt)
+	target_col += continuation_indent;
+    return target_col;
+}
+
+compute_label_target()
+{
+    return
+	ps.pcase ? (int) (case_ind * ps.ind_size) + 1
+	: *s_lab == '#' ? 1
+	: ps.ind_size * (ps.ind_level - label_offset) + 1;
+}
+
+
+/*
+ * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
+ * 
+ * All rights reserved
+ * 
+ * 
+ * NAME: fill_buffer
+ * 
+ * FUNCTION: Reads one block of input into input_buffer
+ * 
+ * HISTORY: initial coding 	November 1976	D A Willcox of CAC 1/7/77 A
+ * Willcox of CAC	Added check for switch back to partly full input
+ * buffer from temporary buffer
+ * 
+ */
+int
+fill_buffer()
+{				/* this routine reads stuff from the input */
+    register char *p;
+    register int i;
+    register FILE *f = input;
+
+    if (bp_save != 0) {		/* there is a partly filled input buffer left */
+	buf_ptr = bp_save;	/* dont read anything, just switch buffers */
+	buf_end = be_save;
+	bp_save = be_save = 0;
+	if (buf_ptr < buf_end)
+	    return;		/* only return if there is really something in
+				 * this buffer */
+    }
+    for (p = in_buffer;;) {
+	if (p >= in_buffer_limit) {
+	    register size = (in_buffer_limit - in_buffer) * 2 + 10;
+	    register offset = p - in_buffer;
+	    in_buffer = (char *) realloc(in_buffer, size);
+	    if (in_buffer == 0)
+		err("input line too long");
+	    p = in_buffer + offset;
+	    in_buffer_limit = in_buffer + size - 2;
+	}
+	if ((i = getc(f)) == EOF) {
+		*p++ = ' ';
+		*p++ = '\n';
+		had_eof = true;
+		break;
+	}
+	*p++ = i;
+	if (i == '\n')
+		break;
+    }
+    buf_ptr = in_buffer;
+    buf_end = p;
+    if (p[-2] == '/' && p[-3] == '*') {
+	if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
+	    fill_buffer();	/* flush indent error message */
+	else {
+	    int         com = 0;
+
+	    p = in_buffer;
+	    while (*p == ' ' || *p == '\t')
+		p++;
+	    if (*p == '/' && p[1] == '*') {
+		p += 2;
+		while (*p == ' ' || *p == '\t')
+		    p++;
+		if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
+			&& p[4] == 'N' && p[5] == 'T') {
+		    p += 6;
+		    while (*p == ' ' || *p == '\t')
+			p++;
+		    if (*p == '*')
+			com = 1;
+		    else if (*p == 'O')
+			if (*++p == 'N')
+			    p++, com = 1;
+			else if (*p == 'F' && *++p == 'F')
+			    p++, com = 2;
+		    while (*p == ' ' || *p == '\t')
+			p++;
+		    if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) {
+			if (s_com != e_com || s_lab != e_lab || s_code != e_code)
+			    dump_line();
+			if (!(inhibit_formatting = com - 1)) {
+			    n_real_blanklines = 0;
+			    postfix_blankline_requested = 0;
+			    prefix_blankline_requested = 0;
+			    suppress_blanklines = 1;
+			}
+		    }
+		}
+	    }
+	}
+    }
+    if (inhibit_formatting) {
+	p = in_buffer;
+	do
+	    putc(*p, output);
+	while (*p++ != '\n');
+    }
+    return;
+}
+
+/*
+ * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
+ * 
+ * All rights reserved
+ * 
+ * 
+ * NAME: pad_output
+ * 
+ * FUNCTION: Writes tabs and spaces to move the current column up to the desired
+ * position.
+ * 
+ * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
+ * 
+ * PARAMETERS: current		integer		The current column target
+ * nteger		The desired column
+ * 
+ * RETURNS: Integer value of the new column.  (If current >= target, no action is
+ * taken, and current is returned.
+ * 
+ * GLOBALS: None
+ * 
+ * CALLS: write (sys)
+ * 
+ * CALLED BY: dump_line
+ * 
+ * HISTORY: initial coding 	November 1976	D A Willcox of CAC
+ * 
+ */
+pad_output(current, target)	/* writes tabs and blanks (if necessary) to
+				 * get the current output position up to the
+				 * target column */
+    int         current;	/* the current column value */
+    int         target;		/* position we want it at */
+{
+    register int curr;		/* internal column pointer */
+    register int tcur;
+
+    if (troff)
+	fprintf(output, "\\h'|%dp'", (target - 1) * 7);
+    else {
+	if (current >= target)
+	    return (current);	/* line is already long enough */
+	curr = current;
+	while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) {
+	    putc('\t', output);
+	    curr = tcur;
+	}
+	while (curr++ < target)
+	    putc(' ', output);	/* pad with final blanks */
+    }
+    return (target);
+}
+
+/*
+ * Copyright (C) 1976 by the Board of Trustees of the University of Illinois
+ * 
+ * All rights reserved
+ * 
+ * 
+ * NAME: count_spaces
+ * 
+ * FUNCTION: Find out where printing of a given string will leave the current
+ * character position on output.
+ * 
+ * ALGORITHM: Run thru input string and add appropriate values to current
+ * position.
+ * 
+ * RETURNS: Integer value of position after printing "buffer" starting in column
+ * "current".
+ * 
+ * HISTORY: initial coding 	November 1976	D A Willcox of CAC
+ * 
+ */
+int
+count_spaces(current, buffer)
+/*
+ * this routine figures out where the character position will be after
+ * printing the text in buffer starting at column "current"
+ */
+    int         current;
+    char       *buffer;
+{
+    register char *buf;		/* used to look thru buffer */
+    register int cur;		/* current character counter */
+
+    cur = current;
+
+    for (buf = buffer; *buf != '\0'; ++buf) {
+	switch (*buf) {
+
+	case '\n':
+	case 014:		/* form feed */
+	    cur = 1;
+	    break;
+
+	case '\t':
+	    cur = ((cur - 1) & tabmask) + tabsize + 1;
+	    break;
+
+	case 010:		/* backspace */
+	    --cur;
+	    break;
+
+	default:
+	    ++cur;
+	    break;
+	}			/* end of switch */
+    }				/* end of for loop */
+    return (cur);
+}
+
+int	found_err;
+/* VARARGS2 */
+diag(level, msg, a, b)
+	char *msg;
+{
+    if (level)
+	found_err = 1;
+    if (output == stdout) {
+	fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
+	fprintf(stdout, msg, a, b);
+	fprintf(stdout, " */\n");
+    }
+    else {
+	fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
+	fprintf(stderr, msg, a, b);
+	fprintf(stderr, "\n");
+    }
+}
+
+writefdef(f, nm)
+    register struct fstate *f;
+{
+    fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
+	    nm, f->font, nm, f->size);
+}
+
+char       *
+chfont(of, nf, s)
+    register struct fstate *of,
+               *nf;
+    char       *s;
+{
+    if (of->font[0] != nf->font[0]
+	    || of->font[1] != nf->font[1]) {
+	*s++ = '\\';
+	*s++ = 'f';
+	if (nf->font[1]) {
+	    *s++ = '(';
+	    *s++ = nf->font[0];
+	    *s++ = nf->font[1];
+	}
+	else
+	    *s++ = nf->font[0];
+    }
+    if (nf->size != of->size) {
+	*s++ = '\\';
+	*s++ = 's';
+	if (nf->size < of->size) {
+	    *s++ = '-';
+	    *s++ = '0' + of->size - nf->size;
+	}
+	else {
+	    *s++ = '+';
+	    *s++ = '0' + nf->size - of->size;
+	}
+    }
+    return s;
+}
+
+
+parsefont(f, s0)
+    register struct fstate *f;
+    char       *s0;
+{
+    register char *s = s0;
+    int         sizedelta = 0;
+    bzero(f, sizeof *f);
+    while (*s) {
+	if (isdigit(*s))
+	    f->size = f->size * 10 + *s - '0';
+	else if (isupper(*s))
+	    if (f->font[0])
+		f->font[1] = *s;
+	    else
+		f->font[0] = *s;
+	else if (*s == 'c')
+	    f->allcaps = 1;
+	else if (*s == '+')
+	    sizedelta++;
+	else if (*s == '-')
+	    sizedelta--;
+	else {
+	    fprintf(stderr, "indent: bad font specification: %s\n", s0);
+	    exit(1);
+	}
+	s++;
+    }
+    if (f->font[0] == 0)
+	f->font[0] = 'R';
+    if (bodyf.size == 0)
+	bodyf.size = 11;
+    if (f->size == 0)
+	f->size = bodyf.size + sizedelta;
+    else if (sizedelta > 0)
+	f->size += bodyf.size;
+    else
+	f->size = bodyf.size - f->size;
+}
diff --git a/usr.bin/indent/lexi.c b/usr.bin/indent/lexi.c
new file mode 100644
index 0000000..8da9d2c
--- /dev/null
+++ b/usr.bin/indent/lexi.c
@@ -0,0 +1,559 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)lexi.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+/*
+ * Here we have the token scanner for indent.  It scans off one token and puts
+ * it in the global variable "token".  It returns a code, indicating the type
+ * of token scanned.
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include "indent_globs.h"
+#include "indent_codes.h"
+
+#define alphanum 1
+#define opchar 3
+
+struct templ {
+    char       *rwd;
+    int         rwcode;
+};
+
+struct templ specials[100] =
+{
+    "switch", 1,
+    "case", 2,
+    "break", 0,
+    "struct", 3,
+    "union", 3,
+    "enum", 3,
+    "default", 2,
+    "int", 4,
+    "char", 4,
+    "float", 4,
+    "double", 4,
+    "long", 4,
+    "short", 4,
+    "typdef", 4,
+    "unsigned", 4,
+    "register", 4,
+    "static", 4,
+    "global", 4,
+    "extern", 4,
+    "void", 4,
+    "goto", 0,
+    "return", 0,
+    "if", 5,
+    "while", 5,
+    "for", 5,
+    "else", 6,
+    "do", 6,
+    "sizeof", 7,
+    0, 0
+};
+
+char        chartype[128] =
+{				/* this is used to facilitate the decision of
+				 * what type (alphanumeric, operator) each
+				 * character is */
+    0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0,
+    0, 3, 0, 0, 1, 3, 3, 0,
+    0, 0, 3, 3, 0, 3, 0, 3,
+    1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 0, 0, 3, 3, 3, 3,
+    0, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 0, 0, 0, 3, 1,
+    0, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 0, 3, 0, 3, 0
+};
+
+
+
+
+int
+lexi()
+{
+    int         unary_delim;	/* this is set to 1 if the current token
+				 * 
+				 * forces a following operator to be unary */
+    static int  last_code;	/* the last token type returned */
+    static int  l_struct;	/* set to 1 if the last token was 'struct' */
+    int         code;		/* internal code to be returned */
+    char        qchar;		/* the delimiter character for a string */
+
+    e_token = s_token;		/* point to start of place to save token */
+    unary_delim = false;
+    ps.col_1 = ps.last_nl;	/* tell world that this token started in
+				 * column 1 iff the last thing scanned was nl */
+    ps.last_nl = false;
+
+    while (*buf_ptr == ' ' || *buf_ptr == '\t') {	/* get rid of blanks */
+	ps.col_1 = false;	/* leading blanks imply token is not in column
+				 * 1 */
+	if (++buf_ptr >= buf_end)
+	    fill_buffer();
+    }
+
+    /* Scan an alphanumeric token */
+    if (chartype[*buf_ptr] == alphanum || buf_ptr[0] == '.' && isdigit(buf_ptr[1])) {
+	/*
+	 * we have a character or number
+	 */
+	register char *j;	/* used for searching thru list of
+				 * 
+				 * reserved words */
+	register struct templ *p;
+
+	if (isdigit(*buf_ptr) || buf_ptr[0] == '.' && isdigit(buf_ptr[1])) {
+	    int         seendot = 0,
+	                seenexp = 0;
+	    if (*buf_ptr == '0' &&
+		    (buf_ptr[1] == 'x' || buf_ptr[1] == 'X')) {
+		*e_token++ = *buf_ptr++;
+		*e_token++ = *buf_ptr++;
+		while (isxdigit(*buf_ptr)) {
+		    CHECK_SIZE_TOKEN;
+		    *e_token++ = *buf_ptr++;
+		}
+	    }
+	    else
+		while (1) {
+		    if (*buf_ptr == '.')
+			if (seendot)
+			    break;
+			else
+			    seendot++;
+		    CHECK_SIZE_TOKEN;
+		    *e_token++ = *buf_ptr++;
+		    if (!isdigit(*buf_ptr) && *buf_ptr != '.')
+			if ((*buf_ptr != 'E' && *buf_ptr != 'e') || seenexp)
+			    break;
+			else {
+			    seenexp++;
+			    seendot++;
+			    CHECK_SIZE_TOKEN;
+			    *e_token++ = *buf_ptr++;
+			    if (*buf_ptr == '+' || *buf_ptr == '-')
+				*e_token++ = *buf_ptr++;
+			}
+		}
+	    if (*buf_ptr == 'L' || *buf_ptr == 'l')
+		*e_token++ = *buf_ptr++;
+	}
+	else
+	    while (chartype[*buf_ptr] == alphanum) {	/* copy it over */
+		CHECK_SIZE_TOKEN;
+		*e_token++ = *buf_ptr++;
+		if (buf_ptr >= buf_end)
+		    fill_buffer();
+	    }
+	*e_token++ = '\0';
+	while (*buf_ptr == ' ' || *buf_ptr == '\t') {	/* get rid of blanks */
+	    if (++buf_ptr >= buf_end)
+		fill_buffer();
+	}
+	ps.its_a_keyword = false;
+	ps.sizeof_keyword = false;
+	if (l_struct) {		/* if last token was 'struct', then this token
+				 * should be treated as a declaration */
+	    l_struct = false;
+	    last_code = ident;
+	    ps.last_u_d = true;
+	    return (decl);
+	}
+	ps.last_u_d = false;	/* Operator after indentifier is binary */
+	last_code = ident;	/* Remember that this is the code we will
+				 * return */
+
+	/*
+	 * This loop will check if the token is a keyword.
+	 */
+	for (p = specials; (j = p->rwd) != 0; p++) {
+	    register char *p = s_token;	/* point at scanned token */
+	    if (*j++ != *p++ || *j++ != *p++)
+		continue;	/* This test depends on the fact that
+				 * identifiers are always at least 1 character
+				 * long (ie. the first two bytes of the
+				 * identifier are always meaningful) */
+	    if (p[-1] == 0)
+		break;		/* If its a one-character identifier */
+	    while (*p++ == *j)
+		if (*j++ == 0)
+		    goto found_keyword;	/* I wish that C had a multi-level
+					 * break... */
+	}
+	if (p->rwd) {		/* we have a keyword */
+    found_keyword:
+	    ps.its_a_keyword = true;
+	    ps.last_u_d = true;
+	    switch (p->rwcode) {
+	    case 1:		/* it is a switch */
+		return (swstmt);
+	    case 2:		/* a case or default */
+		return (casestmt);
+
+	    case 3:		/* a "struct" */
+		if (ps.p_l_follow)
+		    break;	/* inside parens: cast */
+		l_struct = true;
+
+		/*
+		 * Next time around, we will want to know that we have had a
+		 * 'struct'
+		 */
+	    case 4:		/* one of the declaration keywords */
+		if (ps.p_l_follow) {
+		    ps.cast_mask |= 1 << ps.p_l_follow;
+		    break;	/* inside parens: cast */
+		}
+		last_code = decl;
+		return (decl);
+
+	    case 5:		/* if, while, for */
+		return (sp_paren);
+
+	    case 6:		/* do, else */
+		return (sp_nparen);
+
+	    case 7:
+		ps.sizeof_keyword = true;
+	    default:		/* all others are treated like any other
+				 * identifier */
+		return (ident);
+	    }			/* end of switch */
+	}			/* end of if (found_it) */
+	if (*buf_ptr == '(' && ps.tos <= 1 && ps.ind_level == 0) {
+	    register char *tp = buf_ptr;
+	    while (tp < buf_end)
+		if (*tp++ == ')' && (*tp == ';' || *tp == ','))
+		    goto not_proc;
+	    strncpy(ps.procname, token, sizeof ps.procname - 1);
+	    ps.in_parameter_declaration = 1;
+	    rparen_count = 1;
+    not_proc:;
+	}
+	/*
+	 * The following hack attempts to guess whether or not the current
+	 * token is in fact a declaration keyword -- one that has been
+	 * typedefd
+	 */
+	if (((*buf_ptr == '*' && buf_ptr[1] != '=') || isalpha(*buf_ptr) || *buf_ptr == '_')
+		&& !ps.p_l_follow
+	        && !ps.block_init
+		&& (ps.last_token == rparen || ps.last_token == semicolon ||
+		    ps.last_token == decl ||
+		    ps.last_token == lbrace || ps.last_token == rbrace)) {
+	    ps.its_a_keyword = true;
+	    ps.last_u_d = true;
+	    last_code = decl;
+	    return decl;
+	}
+	if (last_code == decl)	/* if this is a declared variable, then
+				 * following sign is unary */
+	    ps.last_u_d = true;	/* will make "int a -1" work */
+	last_code = ident;
+	return (ident);		/* the ident is not in the list */
+    }				/* end of procesing for alpanum character */
+
+    /* Scan a non-alphanumeric token */
+
+    *e_token++ = *buf_ptr;		/* if it is only a one-character token, it is
+				 * moved here */
+    *e_token = '\0';
+    if (++buf_ptr >= buf_end)
+	fill_buffer();
+
+    switch (*token) {
+    case '\n':
+	unary_delim = ps.last_u_d;
+	ps.last_nl = true;	/* remember that we just had a newline */
+	code = (had_eof ? 0 : newline);
+
+	/*
+	 * if data has been exausted, the newline is a dummy, and we should
+	 * return code to stop
+	 */
+	break;
+
+    case '\'':			/* start of quoted character */
+    case '"':			/* start of string */
+	qchar = *token;
+	if (troff) {
+	    e_token[-1] = '`';
+	    if (qchar == '"')
+		*e_token++ = '`';
+	    e_token = chfont(&bodyf, &stringf, e_token);
+	}
+	do {			/* copy the string */
+	    while (1) {		/* move one character or [/<char>]<char> */
+		if (*buf_ptr == '\n') {
+		    printf("%d: Unterminated literal\n", line_no);
+		    goto stop_lit;
+		}
+		CHECK_SIZE_TOKEN;	/* Only have to do this once in this loop,
+					 * since CHECK_SIZE guarantees that there
+					 * are at least 5 entries left */
+		*e_token = *buf_ptr++;
+		if (buf_ptr >= buf_end)
+		    fill_buffer();
+		if (*e_token == BACKSLASH) {	/* if escape, copy extra char */
+		    if (*buf_ptr == '\n')	/* check for escaped newline */
+			++line_no;
+		    if (troff) {
+			*++e_token = BACKSLASH;
+			if (*buf_ptr == BACKSLASH)
+			    *++e_token = BACKSLASH;
+		    }
+		    *++e_token = *buf_ptr++;
+		    ++e_token;	/* we must increment this again because we
+				 * copied two chars */
+		    if (buf_ptr >= buf_end)
+			fill_buffer();
+		}
+		else
+		    break;	/* we copied one character */
+	    }			/* end of while (1) */
+	} while (*e_token++ != qchar);
+	if (troff) {
+	    e_token = chfont(&stringf, &bodyf, e_token - 1);
+	    if (qchar == '"')
+		*e_token++ = '\'';
+	}
+stop_lit:
+	code = ident;
+	break;
+
+    case ('('):
+    case ('['):
+	unary_delim = true;
+	code = lparen;
+	break;
+
+    case (')'):
+    case (']'):
+	code = rparen;
+	break;
+
+    case '#':
+	unary_delim = ps.last_u_d;
+	code = preesc;
+	break;
+
+    case '?':
+	unary_delim = true;
+	code = question;
+	break;
+
+    case (':'):
+	code = colon;
+	unary_delim = true;
+	break;
+
+    case (';'):
+	unary_delim = true;
+	code = semicolon;
+	break;
+
+    case ('{'):
+	unary_delim = true;
+
+	/*
+	 * if (ps.in_or_st) ps.block_init = 1;
+	 */
+	/* ?	code = ps.block_init ? lparen : lbrace; */
+	code = lbrace;
+	break;
+
+    case ('}'):
+	unary_delim = true;
+	/* ?	code = ps.block_init ? rparen : rbrace; */
+	code = rbrace;
+	break;
+
+    case 014:			/* a form feed */
+	unary_delim = ps.last_u_d;
+	ps.last_nl = true;	/* remember this so we can set 'ps.col_1'
+				 * right */
+	code = form_feed;
+	break;
+
+    case (','):
+	unary_delim = true;
+	code = comma;
+	break;
+
+    case '.':
+	unary_delim = false;
+	code = period;
+	break;
+
+    case '-':
+    case '+':			/* check for -, +, --, ++ */
+	code = (ps.last_u_d ? unary_op : binary_op);
+	unary_delim = true;
+
+	if (*buf_ptr == token[0]) {
+	    /* check for doubled character */
+	    *e_token++ = *buf_ptr++;
+	    /* buffer overflow will be checked at end of loop */
+	    if (last_code == ident || last_code == rparen) {
+		code = (ps.last_u_d ? unary_op : postop);
+		/* check for following ++ or -- */
+		unary_delim = false;
+	    }
+	}
+	else if (*buf_ptr == '=')
+	    /* check for operator += */
+	    *e_token++ = *buf_ptr++;
+	else if (*buf_ptr == '>') {
+	    /* check for operator -> */
+	    *e_token++ = *buf_ptr++;
+	    if (!pointer_as_binop) {
+		unary_delim = false;
+		code = unary_op;
+		ps.want_blank = false;
+	    }
+	}
+	break;			/* buffer overflow will be checked at end of
+				 * switch */
+
+    case '=':
+	if (ps.in_or_st)
+	    ps.block_init = 1;
+#ifdef undef
+	if (chartype[*buf_ptr] == opchar) {	/* we have two char assignment */
+	    e_token[-1] = *buf_ptr++;
+	    if ((e_token[-1] == '<' || e_token[-1] == '>') && e_token[-1] == *buf_ptr)
+		*e_token++ = *buf_ptr++;
+	    *e_token++ = '=';	/* Flip =+ to += */
+	    *e_token = 0;
+	}
+#else
+	if (*buf_ptr == '=') {/* == */
+	    *e_token++ = '=';	/* Flip =+ to += */
+	    buf_ptr++;
+	    *e_token = 0;
+	}
+#endif
+	code = binary_op;
+	unary_delim = true;
+	break;
+	/* can drop thru!!! */
+
+    case '>':
+    case '<':
+    case '!':			/* ops like <, <<, <=, !=, etc */
+	if (*buf_ptr == '>' || *buf_ptr == '<' || *buf_ptr == '=') {
+	    *e_token++ = *buf_ptr;
+	    if (++buf_ptr >= buf_end)
+		fill_buffer();
+	}
+	if (*buf_ptr == '=')
+	    *e_token++ = *buf_ptr++;
+	code = (ps.last_u_d ? unary_op : binary_op);
+	unary_delim = true;
+	break;
+
+    default:
+	if (token[0] == '/' && *buf_ptr == '*') {
+	    /* it is start of comment */
+	    *e_token++ = '*';
+
+	    if (++buf_ptr >= buf_end)
+		fill_buffer();
+
+	    code = comment;
+	    unary_delim = ps.last_u_d;
+	    break;
+	}
+	while (*(e_token - 1) == *buf_ptr || *buf_ptr == '=') {
+	    /*
+	     * handle ||, &&, etc, and also things as in int *****i
+	     */
+	    *e_token++ = *buf_ptr;
+	    if (++buf_ptr >= buf_end)
+		fill_buffer();
+	}
+	code = (ps.last_u_d ? unary_op : binary_op);
+	unary_delim = true;
+
+
+    }				/* end of switch */
+    if (code != newline) {
+	l_struct = false;
+	last_code = code;
+    }
+    if (buf_ptr >= buf_end)	/* check for input buffer empty */
+	fill_buffer();
+    ps.last_u_d = unary_delim;
+    *e_token = '\0';		/* null terminate the token */
+    return (code);
+}
+
+/*
+ * Add the given keyword to the keyword table, using val as the keyword type
+ */
+addkey(key, val)
+    char       *key;
+{
+    register struct templ *p = specials;
+    while (p->rwd)
+	if (p->rwd[0] == key[0] && strcmp(p->rwd, key) == 0)
+	    return;
+	else
+	    p++;
+    if (p >= specials + sizeof specials / sizeof specials[0])
+	return;			/* For now, table overflows are silently
+				 * ignored */
+    p->rwd = key;
+    p->rwcode = val;
+    p[1].rwd = 0;
+    p[1].rwcode = 0;
+    return;
+}
diff --git a/usr.bin/indent/parse.c b/usr.bin/indent/parse.c
new file mode 100644
index 0000000..fef22cf
--- /dev/null
+++ b/usr.bin/indent/parse.c
@@ -0,0 +1,324 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)parse.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <stdio.h>
+#include "indent_globs.h"
+#include "indent_codes.h"
+
+parse(tk)
+    int         tk;		/* the code for the construct scanned */
+{
+    int         i;
+
+#ifdef debug
+    printf("%2d - %s\n", tk, token);
+#endif
+
+    while (ps.p_stack[ps.tos] == ifhead && tk != elselit) {
+	/* true if we have an if without an else */
+	ps.p_stack[ps.tos] = stmt;	/* apply the if(..) stmt ::= stmt
+					 * reduction */
+	reduce();		/* see if this allows any reduction */
+    }
+
+
+    switch (tk) {		/* go on and figure out what to do with the
+				 * input */
+
+    case decl:			/* scanned a declaration word */
+	ps.search_brace = btype_2;
+	/* indicate that following brace should be on same line */
+	if (ps.p_stack[ps.tos] != decl) {	/* only put one declaration
+						 * onto stack */
+	    break_comma = true;	/* while in declaration, newline should be
+				 * forced after comma */
+	    ps.p_stack[++ps.tos] = decl;
+	    ps.il[ps.tos] = ps.i_l_follow;
+
+	    if (ps.ljust_decl) {/* only do if we want left justified
+				 * declarations */
+		ps.ind_level = 0;
+		for (i = ps.tos - 1; i > 0; --i)
+		    if (ps.p_stack[i] == decl)
+			++ps.ind_level;	/* indentation is number of
+					 * declaration levels deep we are */
+		ps.i_l_follow = ps.ind_level;
+	    }
+	}
+	break;
+
+    case ifstmt:		/* scanned if (...) */
+	if (ps.p_stack[ps.tos] == elsehead && ps.else_if)	/* "else if ..." */
+	    ps.i_l_follow = ps.il[ps.tos];
+    case dolit:		/* 'do' */
+    case forstmt:		/* for (...) */
+	ps.p_stack[++ps.tos] = tk;
+	ps.il[ps.tos] = ps.ind_level = ps.i_l_follow;
+	++ps.i_l_follow;	/* subsequent statements should be indented 1 */
+	ps.search_brace = btype_2;
+	break;
+
+    case lbrace:		/* scanned { */
+	break_comma = false;	/* don't break comma in an initial list */
+	if (ps.p_stack[ps.tos] == stmt || ps.p_stack[ps.tos] == decl
+		|| ps.p_stack[ps.tos] == stmtl)
+	    ++ps.i_l_follow;	/* it is a random, isolated stmt group or a
+				 * declaration */
+	else {
+	    if (s_code == e_code) {
+		/*
+		 * only do this if there is nothing on the line
+		 */
+		--ps.ind_level;
+		/*
+		 * it is a group as part of a while, for, etc.
+		 */
+		if (ps.p_stack[ps.tos] == swstmt && ps.case_indent >= 1)
+		    --ps.ind_level;
+		/*
+		 * for a switch, brace should be two levels out from the code
+		 */
+	    }
+	}
+
+	ps.p_stack[++ps.tos] = lbrace;
+	ps.il[ps.tos] = ps.ind_level;
+	ps.p_stack[++ps.tos] = stmt;
+	/* allow null stmt between braces */
+	ps.il[ps.tos] = ps.i_l_follow;
+	break;
+
+    case whilestmt:		/* scanned while (...) */
+	if (ps.p_stack[ps.tos] == dohead) {
+	    /* it is matched with do stmt */
+	    ps.ind_level = ps.i_l_follow = ps.il[ps.tos];
+	    ps.p_stack[++ps.tos] = whilestmt;
+	    ps.il[ps.tos] = ps.ind_level = ps.i_l_follow;
+	}
+	else {			/* it is a while loop */
+	    ps.p_stack[++ps.tos] = whilestmt;
+	    ps.il[ps.tos] = ps.i_l_follow;
+	    ++ps.i_l_follow;
+	    ps.search_brace = btype_2;
+	}
+
+	break;
+
+    case elselit:		/* scanned an else */
+
+	if (ps.p_stack[ps.tos] != ifhead)
+	    diag(1, "Unmatched 'else'");
+	else {
+	    ps.ind_level = ps.il[ps.tos];	/* indentation for else should
+						 * be same as for if */
+	    ps.i_l_follow = ps.ind_level + 1;	/* everything following should
+						 * be in 1 level */
+	    ps.p_stack[ps.tos] = elsehead;
+	    /* remember if with else */
+	    ps.search_brace = btype_2 | ps.else_if;
+	}
+	break;
+
+    case rbrace:		/* scanned a } */
+	/* stack should have <lbrace> <stmt> or <lbrace> <stmtl> */
+	if (ps.p_stack[ps.tos - 1] == lbrace) {
+	    ps.ind_level = ps.i_l_follow = ps.il[--ps.tos];
+	    ps.p_stack[ps.tos] = stmt;
+	}
+	else
+	    diag(1, "Stmt nesting error.");
+	break;
+
+    case swstmt:		/* had switch (...) */
+	ps.p_stack[++ps.tos] = swstmt;
+	ps.cstk[ps.tos] = case_ind;
+	/* save current case indent level */
+	ps.il[ps.tos] = ps.i_l_follow;
+	case_ind = ps.i_l_follow + ps.case_indent;	/* cases should be one
+							 * level down from
+							 * switch */
+	ps.i_l_follow += ps.case_indent + 1;	/* statements should be two
+						 * levels in */
+	ps.search_brace = btype_2;
+	break;
+
+    case semicolon:		/* this indicates a simple stmt */
+	break_comma = false;	/* turn off flag to break after commas in a
+				 * declaration */
+	ps.p_stack[++ps.tos] = stmt;
+	ps.il[ps.tos] = ps.ind_level;
+	break;
+
+    default:			/* this is an error */
+	diag(1, "Unknown code to parser");
+	return;
+
+
+    }				/* end of switch */
+
+    reduce();			/* see if any reduction can be done */
+
+#ifdef debug
+    for (i = 1; i <= ps.tos; ++i)
+	printf("(%d %d)", ps.p_stack[i], ps.il[i]);
+    printf("\n");
+#endif
+
+    return;
+}
+
+/*
+ * NAME: reduce
+ * 
+ * FUNCTION: Implements the reduce part of the parsing algorithm
+ * 
+ * ALGORITHM: The following reductions are done.  Reductions are repeated
+ *	until no more are possible.
+ * 
+ * Old TOS		New TOS
+ * <stmt> <stmt>	<stmtl>
+ * <stmtl> <stmt>	<stmtl>
+ * do <stmt>		"dostmt"
+ * if <stmt>		"ifstmt"
+ * switch <stmt>	<stmt>
+ * decl <stmt>		<stmt>
+ * "ifelse" <stmt>	<stmt>
+ * for <stmt>		<stmt>
+ * while <stmt>		<stmt>
+ * "dostmt" while	<stmt>
+ * 
+ * On each reduction, ps.i_l_follow (the indentation for the following line)
+ * is set to the indentation level associated with the old TOS.
+ * 
+ * PARAMETERS: None
+ * 
+ * RETURNS: Nothing
+ * 
+ * GLOBALS: ps.cstk ps.i_l_follow = ps.il ps.p_stack = ps.tos =
+ * 
+ * CALLS: None
+ * 
+ * CALLED BY: parse
+ * 
+ * HISTORY: initial coding 	November 1976	D A Willcox of CAC
+ * 
+ */
+/*----------------------------------------------*\
+|   REDUCTION PHASE				    |
+\*----------------------------------------------*/
+reduce()
+{
+
+    register int i;
+
+    for (;;) {			/* keep looping until there is nothing left to
+				 * reduce */
+
+	switch (ps.p_stack[ps.tos]) {
+
+	case stmt:
+	    switch (ps.p_stack[ps.tos - 1]) {
+
+	    case stmt:
+	    case stmtl:
+		/* stmtl stmt or stmt stmt */
+		ps.p_stack[--ps.tos] = stmtl;
+		break;
+
+	    case dolit:	/* <do> <stmt> */
+		ps.p_stack[--ps.tos] = dohead;
+		ps.i_l_follow = ps.il[ps.tos];
+		break;
+
+	    case ifstmt:
+		/* <if> <stmt> */
+		ps.p_stack[--ps.tos] = ifhead;
+		for (i = ps.tos - 1;
+			(
+			 ps.p_stack[i] != stmt
+			 &&
+			 ps.p_stack[i] != stmtl
+			 &&
+			 ps.p_stack[i] != lbrace
+			 );
+			--i);
+		ps.i_l_follow = ps.il[i];
+		/*
+		 * for the time being, we will assume that there is no else on
+		 * this if, and set the indentation level accordingly. If an
+		 * else is scanned, it will be fixed up later
+		 */
+		break;
+
+	    case swstmt:
+		/* <switch> <stmt> */
+		case_ind = ps.cstk[ps.tos - 1];
+
+	    case decl:		/* finish of a declaration */
+	    case elsehead:
+		/* <<if> <stmt> else> <stmt> */
+	    case forstmt:
+		/* <for> <stmt> */
+	    case whilestmt:
+		/* <while> <stmt> */
+		ps.p_stack[--ps.tos] = stmt;
+		ps.i_l_follow = ps.il[ps.tos];
+		break;
+
+	    default:		/* <anything else> <stmt> */
+		return;
+
+	    }			/* end of section for <stmt> on top of stack */
+	    break;
+
+	case whilestmt:	/* while (...) on top */
+	    if (ps.p_stack[ps.tos - 1] == dohead) {
+		/* it is termination of a do while */
+		ps.p_stack[--ps.tos] = stmt;
+		break;
+	    }
+	    else
+		return;
+
+	default:		/* anything else on top */
+	    return;
+
+	}
+    }
+}
diff --git a/usr.bin/indent/pr_comment.c b/usr.bin/indent/pr_comment.c
new file mode 100644
index 0000000..2d4bc90
--- /dev/null
+++ b/usr.bin/indent/pr_comment.c
@@ -0,0 +1,418 @@
+/*
+ * Copyright (c) 1985 Sun Microsystems, Inc.
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)pr_comment.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "indent_globs.h"
+
+/*
+ * NAME:
+ *	pr_comment
+ *
+ * FUNCTION:
+ *	This routine takes care of scanning and printing comments.
+ *
+ * ALGORITHM:
+ *	1) Decide where the comment should be aligned, and if lines should
+ *	   be broken.
+ *	2) If lines should not be broken and filled, just copy up to end of
+ *	   comment.
+ *	3) If lines should be filled, then scan thru input_buffer copying
+ *	   characters to com_buf.  Remember where the last blank, tab, or
+ *	   newline was.  When line is filled, print up to last blank and
+ *	   continue copying.
+ *
+ * HISTORY:
+ *	November 1976	D A Willcox of CAC	Initial coding
+ *	12/6/76		D A Willcox of CAC	Modification to handle
+ *						UNIX-style comments
+ *
+ */
+
+/*
+ * this routine processes comments.  It makes an attempt to keep comments from
+ * going over the max line length.  If a line is too long, it moves everything
+ * from the last blank to the next comment line.  Blanks and tabs from the
+ * beginning of the input line are removed
+ */
+
+
+pr_comment()
+{
+    int         now_col;	/* column we are in now */
+    int         adj_max_col;	/* Adjusted max_col for when we decide to
+				 * spill comments over the right margin */
+    char       *last_bl;	/* points to the last blank in the output
+				 * buffer */
+    char       *t_ptr;		/* used for moving string */
+    int         unix_comment;	/* tri-state variable used to decide if it is
+				 * a unix-style comment. 0 means only blanks
+				 * since /*, 1 means regular style comment, 2
+				 * means unix style comment */
+    int         break_delim = comment_delimiter_on_blankline;
+    int         l_just_saw_decl = ps.just_saw_decl;
+    /*
+     * int         ps.last_nl = 0;	/* true iff the last significant thing
+     * weve seen is a newline
+     */
+    int         one_liner = 1;	/* true iff this comment is a one-liner */
+    adj_max_col = max_col;
+    ps.just_saw_decl = 0;
+    last_bl = 0;		/* no blanks found so far */
+    ps.box_com = false;		/* at first, assume that we are not in
+					 * a boxed comment or some other
+					 * comment that should not be touched */
+    ++ps.out_coms;		/* keep track of number of comments */
+    unix_comment = 1;		/* set flag to let us figure out if there is a
+				 * unix-style comment ** DISABLED: use 0 to
+				 * reenable this hack! */
+
+    /* Figure where to align and how to treat the comment */
+
+    if (ps.col_1 && !format_col1_comments) {	/* if comment starts in column
+						 * 1 it should not be touched */
+	ps.box_com = true;
+	ps.com_col = 1;
+    }
+    else {
+	if (*buf_ptr == '-' || *buf_ptr == '*') {
+	    ps.box_com = true;	/* a comment with a '-' or '*' immediately
+				 * after the /* is assumed to be a boxed
+				 * comment */
+	    break_delim = 0;
+	}
+	if ( /* ps.bl_line && */ (s_lab == e_lab) && (s_code == e_code)) {
+	    /* klg: check only if this line is blank */
+	    /*
+	     * If this (*and previous lines are*) blank, dont put comment way
+	     * out at left
+	     */
+	    ps.com_col = (ps.ind_level - ps.unindent_displace) * ps.ind_size + 1;
+	    adj_max_col = block_comment_max_col;
+	    if (ps.com_col <= 1)
+		ps.com_col = 1 + !format_col1_comments;
+	}
+	else {
+	    register    target_col;
+	    break_delim = 0;
+	    if (s_code != e_code)
+		target_col = count_spaces(compute_code_target(), s_code);
+	    else {
+		target_col = 1;
+		if (s_lab != e_lab)
+		    target_col = count_spaces(compute_label_target(), s_lab);
+	    }
+	    ps.com_col = ps.decl_on_line || ps.ind_level == 0 ? ps.decl_com_ind : ps.com_ind;
+	    if (ps.com_col < target_col)
+		ps.com_col = ((target_col + 7) & ~7) + 1;
+	    if (ps.com_col + 24 > adj_max_col)
+		adj_max_col = ps.com_col + 24;
+	}
+    }
+    if (ps.box_com) {
+	buf_ptr[-2] = 0;
+	ps.n_comment_delta = 1 - count_spaces(1, in_buffer);
+	buf_ptr[-2] = '/';
+    }
+    else {
+	ps.n_comment_delta = 0;
+	while (*buf_ptr == ' ' || *buf_ptr == '\t')
+	    buf_ptr++;
+    }
+    ps.comment_delta = 0;
+    *e_com++ = '/';		/* put '/*' into buffer */
+    *e_com++ = '*';
+    if (*buf_ptr != ' ' && !ps.box_com)
+	*e_com++ = ' ';
+
+    *e_com = '\0';
+    if (troff) {
+	now_col = 1;
+	adj_max_col = 80;
+    }
+    else
+	now_col = count_spaces(ps.com_col, s_com);	/* figure what column we
+							 * would be in if we
+							 * printed the comment
+							 * now */
+
+    /* Start to copy the comment */
+
+    while (1) {			/* this loop will go until the comment is
+				 * copied */
+	if (*buf_ptr > 040 && *buf_ptr != '*')
+	    ps.last_nl = 0;
+	CHECK_SIZE_COM;
+	switch (*buf_ptr) {	/* this checks for various spcl cases */
+	case 014:		/* check for a form feed */
+	    if (!ps.box_com) {	/* in a text comment, break the line here */
+		ps.use_ff = true;
+		/* fix so dump_line uses a form feed */
+		dump_line();
+		last_bl = 0;
+		*e_com++ = ' ';
+		*e_com++ = '*';
+		*e_com++ = ' ';
+		while (*++buf_ptr == ' ' || *buf_ptr == '\t');
+	    }
+	    else {
+		if (++buf_ptr >= buf_end)
+		    fill_buffer();
+		*e_com++ = 014;
+	    }
+	    break;
+
+	case '\n':
+	    if (had_eof) {	/* check for unexpected eof */
+		printf("Unterminated comment\n");
+		*e_com = '\0';
+		dump_line();
+		return;
+	    }
+	    one_liner = 0;
+	    if (ps.box_com || ps.last_nl) {	/* if this is a boxed comment,
+						 * we dont ignore the newline */
+		if (s_com == e_com) {
+		    *e_com++ = ' ';
+		    *e_com++ = ' ';
+		}
+		*e_com = '\0';
+		if (!ps.box_com && e_com - s_com > 3) {
+		    if (break_delim == 1 && s_com[0] == '/'
+			    && s_com[1] == '*' && s_com[2] == ' ') {
+			char       *t = e_com;
+			break_delim = 2;
+			e_com = s_com + 2;
+			*e_com = 0;
+			if (blanklines_before_blockcomments)
+			    prefix_blankline_requested = 1;
+			dump_line();
+			e_com = t;
+			s_com[0] = s_com[1] = s_com[2] = ' ';
+		    }
+		    dump_line();
+		    CHECK_SIZE_COM;
+		    *e_com++ = ' ';
+		    *e_com++ = ' ';
+		}
+		dump_line();
+		now_col = ps.com_col;
+	    }
+	    else {
+		ps.last_nl = 1;
+		if (unix_comment != 1) {	/* we not are in unix_style
+						 * comment */
+		    if (unix_comment == 0 && s_code == e_code) {
+			/*
+			 * if it is a UNIX-style comment, ignore the
+			 * requirement that previous line be blank for
+			 * unindention
+			 */
+			ps.com_col = (ps.ind_level - ps.unindent_displace) * ps.ind_size + 1;
+			if (ps.com_col <= 1)
+			    ps.com_col = 2;
+		    }
+		    unix_comment = 2;	/* permanently remember that we are in
+					 * this type of comment */
+		    dump_line();
+		    ++line_no;
+		    now_col = ps.com_col;
+		    *e_com++ = ' ';
+		    /*
+		     * fix so that the star at the start of the line will line
+		     * up
+		     */
+		    do		/* flush leading white space */
+			if (++buf_ptr >= buf_end)
+			    fill_buffer();
+		    while (*buf_ptr == ' ' || *buf_ptr == '\t');
+		    break;
+		}
+		if (*(e_com - 1) == ' ' || *(e_com - 1) == '\t')
+		    last_bl = e_com - 1;
+		/*
+		 * if there was a space at the end of the last line, remember
+		 * where it was
+		 */
+		else {		/* otherwise, insert one */
+		    last_bl = e_com;
+		    CHECK_SIZE_COM;
+		    *e_com++ = ' ';
+		    ++now_col;
+		}
+	    }
+	    ++line_no;		/* keep track of input line number */
+	    if (!ps.box_com) {
+		int         nstar = 1;
+		do {		/* flush any blanks and/or tabs at start of
+				 * next line */
+		    if (++buf_ptr >= buf_end)
+			fill_buffer();
+		    if (*buf_ptr == '*' && --nstar >= 0) {
+			if (++buf_ptr >= buf_end)
+			    fill_buffer();
+			if (*buf_ptr == '/')
+			    goto end_of_comment;
+		    }
+		} while (*buf_ptr == ' ' || *buf_ptr == '\t');
+	    }
+	    else if (++buf_ptr >= buf_end)
+		fill_buffer();
+	    break;		/* end of case for newline */
+
+	case '*':		/* must check for possibility of being at end
+				 * of comment */
+	    if (++buf_ptr >= buf_end)	/* get to next char after * */
+		fill_buffer();
+
+	    if (unix_comment == 0)	/* set flag to show we are not in
+					 * unix-style comment */
+		unix_comment = 1;
+
+	    if (*buf_ptr == '/') {	/* it is the end!!! */
+	end_of_comment:
+		if (++buf_ptr >= buf_end)
+		    fill_buffer();
+
+		if (*(e_com - 1) != ' ' && !ps.box_com) {	/* insure blank before
+								 * end */
+		    *e_com++ = ' ';
+		    ++now_col;
+		}
+		if (break_delim == 1 && !one_liner && s_com[0] == '/'
+			&& s_com[1] == '*' && s_com[2] == ' ') {
+		    char       *t = e_com;
+		    break_delim = 2;
+		    e_com = s_com + 2;
+		    *e_com = 0;
+		    if (blanklines_before_blockcomments)
+			prefix_blankline_requested = 1;
+		    dump_line();
+		    e_com = t;
+		    s_com[0] = s_com[1] = s_com[2] = ' ';
+		}
+		if (break_delim == 2 && e_com > s_com + 3
+			 /* now_col > adj_max_col - 2 && !ps.box_com */ ) {
+		    *e_com = '\0';
+		    dump_line();
+		    now_col = ps.com_col;
+		}
+		CHECK_SIZE_COM;
+		*e_com++ = '*';
+		*e_com++ = '/';
+		*e_com = '\0';
+		ps.just_saw_decl = l_just_saw_decl;
+		return;
+	    }
+	    else {		/* handle isolated '*' */
+		*e_com++ = '*';
+		++now_col;
+	    }
+	    break;
+	default:		/* we have a random char */
+	    if (unix_comment == 0 && *buf_ptr != ' ' && *buf_ptr != '\t')
+		unix_comment = 1;	/* we are not in unix-style comment */
+
+	    *e_com = *buf_ptr++;
+	    if (buf_ptr >= buf_end)
+		fill_buffer();
+
+	    if (*e_com == '\t')	/* keep track of column */
+		now_col = ((now_col - 1) & tabmask) + tabsize + 1;
+	    else if (*e_com == '\b')	/* this is a backspace */
+		--now_col;
+	    else
+		++now_col;
+
+	    if (*e_com == ' ' || *e_com == '\t')
+		last_bl = e_com;
+	    /* remember we saw a blank */
+
+	    ++e_com;
+	    if (now_col > adj_max_col && !ps.box_com && unix_comment == 1 && e_com[-1] > ' ') {
+		/*
+		 * the comment is too long, it must be broken up
+		 */
+		if (break_delim == 1 && s_com[0] == '/'
+			&& s_com[1] == '*' && s_com[2] == ' ') {
+		    char       *t = e_com;
+		    break_delim = 2;
+		    e_com = s_com + 2;
+		    *e_com = 0;
+		    if (blanklines_before_blockcomments)
+			prefix_blankline_requested = 1;
+		    dump_line();
+		    e_com = t;
+		    s_com[0] = s_com[1] = s_com[2] = ' ';
+		}
+		if (last_bl == 0) {	/* we have seen no blanks */
+		    last_bl = e_com;	/* fake it */
+		    *e_com++ = ' ';
+		}
+		*e_com = '\0';	/* print what we have */
+		*last_bl = '\0';
+		while (last_bl > s_com && last_bl[-1] < 040)
+		    *--last_bl = 0;
+		e_com = last_bl;
+		dump_line();
+
+		*e_com++ = ' ';	/* add blanks for continuation */
+		*e_com++ = ' ';
+		*e_com++ = ' ';
+
+		t_ptr = last_bl + 1;
+		last_bl = 0;
+		if (t_ptr >= e_com) {
+		    while (*t_ptr == ' ' || *t_ptr == '\t')
+			t_ptr++;
+		    while (*t_ptr != '\0') {	/* move unprinted part of
+						 * comment down in buffer */
+			if (*t_ptr == ' ' || *t_ptr == '\t')
+			    last_bl = e_com;
+			*e_com++ = *t_ptr++;
+		    }
+		}
+		*e_com = '\0';
+		now_col = count_spaces(ps.com_col, s_com);	/* recompute current
+								 * position */
+	    }
+	    break;
+	}
+    }
+}