diff options
Diffstat (limited to 'contrib/texinfo/doc/help2man')
| -rwxr-xr-x | contrib/texinfo/doc/help2man | 515 |
1 files changed, 322 insertions, 193 deletions
diff --git a/contrib/texinfo/doc/help2man b/contrib/texinfo/doc/help2man index d33f7cd..8f40e8d 100755 --- a/contrib/texinfo/doc/help2man +++ b/contrib/texinfo/doc/help2man @@ -1,7 +1,7 @@ #!/usr/local/bin/perl -w # Generate a short man page from --help and --version output. -# Copyright © 1997, 98, 99 Free Software Foundation, Inc. +# Copyright © 1997, 1998, 1999, 2000 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -18,6 +18,7 @@ # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # Written by Brendan O'Dea <bod@compusol.com.au> +# Available from ftp://ftp.gnu.org/gnu/help2man/ use 5.004; use strict; @@ -26,11 +27,11 @@ use Text::Tabs qw(expand); use POSIX qw(strftime setlocale LC_TIME); my $this_program = 'help2man'; -my $this_version = '1.013'; +my $this_version = '1.24'; my $version_info = <<EOT; -$this_program $this_version +GNU $this_program $this_version -Copyright (C) 1997, 98, 99 Free Software Foundation, Inc. +Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. @@ -49,95 +50,134 @@ Usage: $this_program [OPTION]... EXECUTABLE -o, --output=FILE send output to `FILE' -N, --no-info suppress pointer to Texinfo manual --help print this help, then exit - --version print $this_program program version number, then exit + --version print version number, then exit EXECUTABLE should accept `--help' and `--version' options. + +Report bugs to <bug-help2man\@gnu.org>. EOT my $section = 1; -my ($include, $opt_name, $opt_include, $opt_output, $opt_no_info); - -# Parse options. -Getopt::Long::config('bundling'); -GetOptions ( +my ($opt_name, @opt_include, $opt_output, $opt_no_info); +my %opt_def = ( 'n|name=s' => \$opt_name, 's|section=s' => \$section, - 'i|include=s' => \$include, - 'I|opt-include=s' => \$opt_include, + 'i|include=s' => sub { push @opt_include, [ pop, 1 ] }, + 'I|opt-include=s' => sub { push @opt_include, [ pop, 0 ] }, 'o|output=s' => \$opt_output, 'N|no-info' => \$opt_no_info, - help => sub { print $help_info; exit }, - version => sub { print $version_info; exit }, +); + +# Parse options. +Getopt::Long::config('bundling'); +GetOptions (%opt_def, + help => sub { print $help_info; exit }, + version => sub { print $version_info; exit }, ) or die $help_info; die $help_info unless @ARGV == 1; my %include = (); -my @include = (); # to retain order +my %append = (); +my @include = (); # retain order given in include file + +# Provide replacement `quote-regex' operator for pre-5.005. +BEGIN { eval q(sub qr { '' =~ $_[0]; $_[0] }) if $] < 5.005 } # Process include file (if given). Format is: # -# [section name] -# verbatim text +# [section name] +# verbatim text +# +# or +# +# /pattern/ +# verbatim text +# -if ($include or $opt_include) +while (@opt_include) { - if (open INC, $include || $opt_include) + my ($inc, $required) = @{shift @opt_include}; + + next unless -f $inc or $required; + die "$this_program: can't open `$inc' ($!)\n" + unless open INC, $inc; + + my $key; + my $hash = \%include; + + while (<INC>) { - my $sect; + # [section] + if (/^\[([^]]+)\]/) + { + $key = uc $1; + $key =~ s/^\s+//; + $key =~ s/\s+$//; + $hash = \%include; + push @include, $key unless $include{$key}; + next; + } - while (<INC>) + # /pattern/ + if (m!^/(.*)/([ims]*)!) { - if (/^\[([^]]+)\]/) + my $pat = $2 ? "(?$2)$1" : $1; + + # Check pattern. + eval { $key = qr($pat) }; + if ($@) { - $sect = uc $1; - $sect =~ s/^\s+//; - $sect =~ s/\s+$//; - next; + $@ =~ s/ at .*? line \d.*//; + die "$inc:$.:$@"; } - # Silently ignore anything before the first - # section--allows for comments and revision info. - next unless $sect; - - push @include, $sect unless $include{$sect}; - $include{$sect} ||= ''; - $include{$sect} .= $_; + $hash = \%append; + next; } - close INC; - - die "$this_program: no valid information found in `$include'\n" - unless %include; - - # Compress trailing blank lines. - for (keys %include) + # Check for options before the first section--anything else is + # silently ignored, allowing the first for comments and + # revision info. + unless ($key) { - $include{$_} =~ s/\n+$//; - $include{$_} .= "\n" unless /^NAME$/; + # handle options + if (/^-/) + { + local @ARGV = split; + GetOptions %opt_def; + } + + next; } + + $hash->{$key} ||= ''; + $hash->{$key} .= $_; } - else - { - die "$this_program: can't open `$include' ($!)\n" if $include; - } + + close INC; + + die "$this_program: no valid information found in `$inc'\n" + unless $key; +} + +# Compress trailing blank lines. +for my $hash (\(%include, %append)) +{ + for (keys %$hash) { $hash->{$_} =~ s/\n+$/\n/ } } # Turn off localisation of executable's ouput. @ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3; -# Turn off localisation of date (for strftime) +# Turn off localisation of date (for strftime). setlocale LC_TIME, 'C'; -# Expand tabs, strip trailing spaces and break into paragraphs -sub paragraphs { split /\n\n+/, join '', expand @_ } - -# Grab help and version paragraphs from executable -my @help = paragraphs `$ARGV[0] --help 2>/dev/null` - or die "$this_program: can't get `--help' info from $ARGV[0]\n"; - -my @version = paragraphs `$ARGV[0] --version 2>/dev/null` - or die "$this_program: can't get `--version' info from $ARGV[0]\n"; +# Grab help and version info from executable. +my ($help_text, $version_text) = map { + join '', map { s/ +$//; expand $_ } `$ARGV[0] --$_ 2>/dev/null` + or die "$this_program: can't get `--$_' info from $ARGV[0]\n" +} qw(help version); my $date = strftime "%B %Y", localtime; (my $program = $ARGV[0]) =~ s!.*/!!; @@ -165,7 +205,7 @@ if ($opt_output) # # and seperated from any copyright/author details by a blank line. -$_ = shift @version; +($_, $version_text) = split /\n+/, $version_text, 2; if (/^(\S+) +\(((?:GNU|Free) +[^)]+)\) +(.*)/ or /^(\S+) +- *((?:GNU|Free) +\S+) +(.*)/) @@ -187,163 +227,245 @@ else $program =~ s!.*/!!; -# no info for `info' itself +# No info for `info' itself. $opt_no_info = 1 if $program eq 'info'; -# --name overrides --include contents -$include{NAME} = "$program \\- $opt_name" if $opt_name; +# --name overrides --include contents. +$include{NAME} = "$program \\- $opt_name\n" if $opt_name; -# Default (useless) NAME paragraph -$include{NAME} ||= "$program \\- manual page for $program $version"; +# Default (useless) NAME paragraph. +$include{NAME} ||= "$program \\- manual page for $program $version\n"; # Man pages traditionally have the page title in caps. my $PROGRAM = uc $program; -# Header. -print <<EOT; -.\\" DO NOT MODIFY THIS FILE! It was generated by $this_program $this_version. -.TH $PROGRAM "$section" "$date" "$package $version" FSF -.SH NAME -$include{NAME} -EOT +# Extract usage clause(s) [if any] for SYNOPSIS. +if ($help_text =~ s/^Usage:( +(\S+))(.*)((?:\n(?: {6}\1| *or: +\S).*)*)//m) +{ + my @syn = $2 . $3; + + if ($_ = $4) + { + s/^\n//; + for (split /\n/) { s/^ *(or: +)?//; push @syn, $_ } + } -my $break; -my $accumulate = 1; -my @description = (); + my $synopsis = ''; + for (@syn) + { + $synopsis .= ".br\n" if $synopsis; + s!^\S*/!!; + s/^(\S+) *//; + $synopsis .= ".B $1\n"; + s/\s+$//; + s/(([][]|\.\.+)+)/\\fR$1\\fI/g; + s/^/\\fI/ unless s/^\\fR//; + $_ .= '\fR'; + s/(\\fI)( *)/$2$1/g; + s/\\fI\\fR//g; + s/^\\fR//; + s/\\fI$//; + s/^\./\\&./; + + $synopsis .= "$_\n"; + } + + $include{SYNOPSIS} ||= $synopsis; +} + +# Process text, initial section is DESCRIPTION. +my $sect = 'DESCRIPTION'; +$_ = "$help_text\n\n$version_text"; + +# Normalise paragraph breaks. +s/^\n+//; +s/\n*$/\n/; +s/\n\n+/\n\n/g; + +# Temporarily exchange leading dots, apostrophes and backslashes for +# tokens. +s/^\./\x80/mg; +s/^'/\x81/mg; +s/\\/\x82/g; + +# Start a new paragraph (if required) for these. +s/([^\n])\n(Report +bugs|Email +bug +reports +to|Written +by)/$1\n\n$2/g; sub convert_option; -# Output converted --help information. -for (@help) +while (length) { - chomp; + # Convert some standard paragraph names. + if (s/^(Options|Examples): *\n//) + { + $sect = uc $1; + next; + } - if (s/^Usage: +\S+ +(.*)\n?//) + # Copyright section + if (/^Copyright +[(\xa9]/) { - # Turn the usage clause into a synopsis. - my $synopsis = ''; - - do { - my $syn = $1; - $syn =~ s/(([][]|\.\.+)+)/\\fR$1\\fI/g; - $syn =~ s/^/\\fI/ unless $syn =~ s/^\\fR//; - $syn .= '\fR'; - $syn =~ s/\\fI( *)\\fR/$1/g; - - $synopsis .= ".br\n" unless $accumulate; - $synopsis .= ".B $program\n"; - $synopsis .= "$syn\n"; - $accumulate = 0; - } while s/^(?:Usage| *or): +\S+ +(.*)\n?//; - - # Include file overrides SYNOPSIS. - print ".SH SYNOPSIS\n", $include{SYNOPSIS} || $synopsis; - - # Dump any accumulated description text. - print ".SH DESCRIPTION\n"; - print @description; - - # Add additional description text from include file. - if ($include{DESCRIPTION}) + $sect = 'COPYRIGHT'; + $include{$sect} ||= ''; + $include{$sect} .= ".PP\n" if $include{$sect}; + + my $copy; + ($copy, $_) = split /\n\n/, $_, 2; + + for ($copy) { - print ".PP\n" unless $include{DESCRIPTION} =~ /^\..P/; - print $include{DESCRIPTION}; + # Add back newline + s/\n*$/\n/; + + # Convert iso9959-1 copyright symbol or (c) to nroff + # character. + s/^Copyright +(?:\xa9|\([Cc]\))/Copyright \\(co/mg; + + # Insert line breaks before additional copyright messages + # and the disclaimer. + s/(.)\n(Copyright |This +is +free +software)/$1\n.br\n$2/g; + + # Join hyphenated lines. + s/([A-Za-z])-\n */$1/g; } - $break = 1; - next unless $_; + $include{$sect} .= $copy; + $_ ||= ''; + next; } - # Accumulate text if the synopsis has not been produced yet. - if ($accumulate) + # Catch bug report text. + if (/^(Report +bugs|Email +bug +reports +to) /) { - push @description, ".PP\n" if @description; - push @description, "$_\n"; - next; + $sect = 'REPORTING BUGS'; } - # Convert some standard paragraph names - if (s/^(Options|Examples): *\n//) + # Author section. + elsif (/^Written +by/) { - print qq(.SH \U$1\n); - $break = ''; - next unless length; + $sect = 'AUTHOR'; } - # Catch bug report text. - if (/^Report bugs |^Email bug reports to /) + # Examples, indicated by an indented leading $, % or > are + # rendered in a constant width font. + if (/^( +)([\$\%>] )\S/) { - print qq(.SH "REPORTING BUGS"\n$_\n); - $break = ''; + my $indent = $1; + my $prefix = $2; + my $break = '.IP'; + $include{$sect} ||= ''; + while (s/^$indent\Q$prefix\E(\S.*)\n*//) + { + $include{$sect} .= "$break\n\\f(CW$prefix$1\\fR\n"; + $break = '.br'; + } + next; } - # Option subsections have second line indented. - if (s/^(\S.*)\n / /) + my $matched = ''; + $include{$sect} ||= ''; + + # Sub-sections have a trailing colon and the second line indented. + if (s/^(\S.*:) *\n / /) { - print qq(.SS "$1"\n); - $break = ''; + $matched .= $& if %append; + $include{$sect} .= qq(.SS "$1"\n); } - my $output = ''; - while (length) - { - my $indent = 0; + my $indent = 0; + my $content = ''; - # Tagged paragraph - if (s/^( +(\S.*?) +)(\S.*)\n?//) + # Option with description. + if (s/^( {1,10}([+-]\S.*?))(?:( +)|\n( {20,}))(\S.*)\n//) + { + $matched .= $& if %append; + $indent = length ($4 || "$1$3"); + $content = ".TP\n\x83$2\n\x83$5\n"; + unless ($4) { - $indent = length $1; - $output .= ".TP\n$2\n$3\n"; - $break = 1; + # Indent may be different on second line. + $indent = length $& if /^ {20,}/; } + } - # Indented paragraph - elsif (s/^( +)(\S.*)\n?//) - { - $indent = length $1; - $output .= ".IP\n$2\n"; - $break = 1; - } + # Option without description. + elsif (s/^ {1,10}([+-]\S.*)\n//) + { + $matched .= $& if %append; + $content = ".HP\n\x83$1\n"; + $indent = 80; # not continued + } - # Left justified paragraph - else - { - s/(.*)\n?//; - $output .= ".PP\n" if $break; - $output .= "$1\n"; - $break = 1; - } + # Indented paragraph with tag. + elsif (s/^( +(\S.*?) +)(\S.*)\n//) + { + $matched .= $& if %append; + $indent = length $1; + $content = ".TP\n\x83$2\n\x83$3\n"; + } + + # Indented paragraph. + elsif (s/^( +)(\S.*)\n//) + { + $matched .= $& if %append; + $indent = length $1; + $content = ".IP\n\x83$2\n"; + } + + # Left justified paragraph. + else + { + s/(.*)\n//; + $matched .= $& if %append; + $content = ".PP\n" if $include{$sect}; + $content .= "$1\n"; + } - # Continuations - $output .= "$1\n" while s/^ {$indent}(\S.*)\n?//; + # Append continuations. + while (s/^ {$indent}(\S.*)\n//) + { + $matched .= $& if %append; + $content .= "\x83$1\n" } - $_ = $output; + # Move to next paragraph. + s/^\n+//; - # Escape backslashes. - s/\\/\\e/g; + for ($content) + { + # Leading dot and apostrophe protection. + s/\x83\./\x80/g; + s/\x83'/\x81/g; + s/\x83//g; - # Convert options. - s/(^| )(-[][\w=-]+)/$1 . convert_option $2/mge; - print; -} + # Convert options. + s/(^| )(-[][\w=-]+)/$1 . convert_option $2/mge; + } -# Print any include items other than the ones we have already dealt -# with. -for (@include) -{ - print qq(.SH "$_"\n$include{$_}) - unless /^(NAME|SYNOPSIS|DESCRIPTION|SEE ALSO)$/; + # Check if matched paragraph contains /pat/. + if (%append) + { + for my $pat (keys %append) + { + if ($matched =~ $pat) + { + $content .= ".PP\n" unless $append{$pat} =~ /^\./; + $content .= $append{$pat}; + } + } + } + + $include{$sect} .= $content; } # Refer to the real documentation. -if ($include{'SEE ALSO'} or !$opt_no_info) +unless ($opt_no_info) { - print qq(.SH "SEE ALSO"\n); - print $include{'SEE ALSO'}, ".PP\n" if $include{'SEE ALSO'}; - - print <<EOT unless $opt_no_info; + $sect = 'SEE ALSO'; + $include{$sect} ||= ''; + $include{$sect} .= ".PP\n" if $include{$sect}; + $include{$sect} .= <<EOT; The full documentation for .B $program is maintained as a Texinfo manual. If the @@ -358,27 +480,34 @@ should give you access to the complete manual. EOT } -# Output converted --version information. -for (@version) -{ - chomp; - - # Join hyphenated lines. - s/([A-Za-z])-\n */$1/g; - - # Convert copyright symbol or (c) to nroff character. - s/Copyright +(?:\xa9|\([Cc]\))/Copyright \\(co/g; - - # Insert appropriate headings for copyright and author. - if (/^Copyright \\/) { print ".SH COPYRIGHT\n" } - elsif (/^Written +by/) { print ".SH AUTHOR\n" } - else { print ".PP\n"; } +# Output header. +print <<EOT; +.\\" DO NOT MODIFY THIS FILE! It was generated by $this_program $this_version. +.TH $PROGRAM "$section" "$date" "$package $version" FSF +EOT - # Insert line breaks before additional copyright messages and the - # disclaimer. - s/(.)\n(Copyright |This is free software)/$1\n.br\n$2/g; +# Section ordering. +my @pre = qw(NAME SYNOPSIS DESCRIPTION OPTIONS EXAMPLES); +my @post = ('AUTHOR', 'REPORTING BUGS', 'COPYRIGHT', 'SEE ALSO'); +my $filter = join '|', @pre, @post; - print "$_\n"; +# Output content. +for (@pre, (grep ! /^($filter)$/o, @include), @post) +{ + if ($include{$_}) + { + my $quote = /\W/ ? '"' : ''; + print ".SH $quote$_$quote\n"; + + for ($include{$_}) + { + # Replace leading dot, apostrophe and backslash tokens. + s/\x80/\\&./g; + s/\x81/\\&'/g; + s/\x82/\\e/g; + print; + } + } } exit; @@ -387,15 +516,15 @@ exit; # embolden. Option arguments get italicised. sub convert_option { - my $option = '\fB' . shift; + local $_ = '\fB' . shift; - $option =~ s/-/\\-/g; - unless ($option =~ s/\[=(.*)\]$/\\fR[=\\fI$1\\fR]/) + s/-/\\-/g; + unless (s/\[=(.*)\]$/\\fR[=\\fI$1\\fR]/) { - $option =~ s/=(.)/\\fR=\\fI$1/; - $option =~ s/ (.)/ \\fI$1/; - $option .= '\fR'; + s/=(.)/\\fR=\\fI$1/; + s/ (.)/ \\fI$1/; + $_ .= '\fR'; } - $option; + $_; } |
