From: Bruno Haible Date: Fri, 14 Feb 2003 13:01:39 +0000 (+0000) Subject: Move man/help2man to gettext-runtime/man/help2man and gettext-tools/man/help2man. X-Git-Tag: v0.12~794 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45832740dd70e4f884c4e2a5aba324a352a90db3;p=thirdparty%2Fgettext.git Move man/help2man to gettext-runtime/man/help2man and gettext-tools/man/help2man. --- diff --git a/man/help2man b/gettext-runtime/man/help2man similarity index 100% rename from man/help2man rename to gettext-runtime/man/help2man diff --git a/gettext-tools/man/help2man b/gettext-tools/man/help2man new file mode 100755 index 000000000..c8821b072 --- /dev/null +++ b/gettext-tools/man/help2man @@ -0,0 +1,530 @@ +#!/usr/bin/perl -w + +# Generate a short man page from --help and --version output. +# 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 +# the Free Software Foundation; either version 2, or (at your option) +# any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software Foundation, +# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +# Written by Brendan O'Dea +# Available from ftp://ftp.gnu.org/gnu/help2man/ + +use 5.004; +use strict; +use Getopt::Long; +use Text::Tabs qw(expand); +use POSIX qw(strftime setlocale LC_TIME); + +my $this_program = 'help2man'; +my $this_version = '1.24'; +my $version_info = < +EOT + +my $help_info = <. +EOT + +my $section = 1; +my ($opt_name, @opt_include, $opt_output, $opt_no_info); +my %opt_def = ( + 'n|name=s' => \$opt_name, + 's|section=s' => \$section, + 'i|include=s' => 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, +); + +# 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 %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 $] < 5.005 } + +# Process include file (if given). Format is: +# +# [section name] +# verbatim text +# +# or +# +# /pattern/ +# verbatim text +# + +while (@opt_include) +{ + my ($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 () + { + # [section] + if (/^\[([^]]+)\]/) + { + $key = uc $1; + $key =~ s/^\s+//; + $key =~ s/\s+$//; + $hash = \%include; + push @include, $key unless $include{$key}; + next; + } + + # /pattern/ + if (m!^/(.*)/([ims]*)!) + { + my $pat = $2 ? "(?$2)$1" : $1; + + # Check pattern. + eval { $key = qr($pat) }; + if ($@) + { + $@ =~ s/ at .*? line \d.*//; + die "$inc:$.:$@"; + } + + $hash = \%append; + next; + } + + # Check for options before the first section--anything else is + # silently ignored, allowing the first for comments and + # revision info. + unless ($key) + { + # handle options + if (/^-/) + { + local @ARGV = split; + GetOptions %opt_def; + } + + next; + } + + $hash->{$key} ||= ''; + $hash->{$key} .= $_; + } + + close INC; + + die "$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+$/\n/ } +} + +# Turn off localisation of executable's ouput. +@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3; + +# Turn off localisation of date (for strftime). +setlocale LC_TIME, 'C'; + +# Grab help and version info from executable. +my ($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!.*/!!; +my $package = $program; +my $version; + +if ($opt_output) +{ + unlink $opt_output + or die "$this_program: can't unlink $opt_output ($!)\n" + if -e $opt_output; + + open STDOUT, ">$opt_output" + or die "$this_program: can't create $opt_output ($!)\n"; +} + +# The first line of the --version information is assumed to be in one +# of the following formats: +# +# +# +# {GNU,Free} +# ({GNU,Free} ) +# - {GNU,Free} +# +# and seperated from any copyright/author details by a blank line. + +($_, $version_text) = split /\n+/, $version_text, 2; + +if (/^(\S+) +\(((?:GNU|Free) +[^)]+)\) +(.*)/ or + /^(\S+) +- *((?:GNU|Free) +\S+) +(.*)/) +{ + $program = $1; + $package = $2; + $version = $3; +} +elsif (/^((?:GNU|Free) +)?(\S+) +(.*)/) +{ + $program = $2; + $package = $1 ? "$1$2" : $2; + $version = $3; +} +else +{ + $version = $_; +} + +$program =~ s!.*/!!; + +# No info for `info' itself. +$opt_no_info = 1 if $program eq 'info'; + +# --name overrides --include contents. +$include{NAME} = "$program \\- $opt_name\n" if $opt_name; + +# Default (useless) NAME paragraph. +$include{NAME} ||= "$program \\- manual page for $program $version\n"; + +# Man pages traditionally have the page title in caps. +my $PROGRAM = uc $program; + +# Extract usage clause(s) [if any] for SYNOPSIS. +if ($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 $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; + +while (length) +{ + # Convert some standard paragraph names. + if (s/^(Options|Examples): *\n//) + { + $sect = uc $1; + next; + } + + # Copyright section + if (/^Copyright +[(\xa9]/) + { + $sect = 'COPYRIGHT'; + $include{$sect} ||= ''; + $include{$sect} .= ".PP\n" if $include{$sect}; + + my $copy; + ($copy, $_) = split /\n\n/, $_, 2; + + for ($copy) + { + # 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; + } + + $include{$sect} .= $copy; + $_ ||= ''; + next; + } + + # Catch bug report text. + if (/^(Report +bugs|Email +bug +reports +to) /) + { + $sect = 'REPORTING BUGS'; + } + + # Author section. + elsif (/^Written +by/) + { + $sect = 'AUTHOR'; + } + + # Examples, indicated by an indented leading $, % or > are + # rendered in a constant width font. + if (/^( +)([\$\%>] )\S/) + { + 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; + } + + my $matched = ''; + $include{$sect} ||= ''; + + # Sub-sections have a trailing colon and the second line indented. + if (s/^(\S.*:) *\n / /) + { + $matched .= $& if %append; + $include{$sect} .= qq(.SS "$1"\n); + } + + my $indent = 0; + my $content = ''; + + # 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 may be different on second line. + $indent = length $& if /^ {20,}/; + } + } + + # Option without description. + elsif (s/^ {1,10}([+-]\S.*)\n//) + { + $matched .= $& if %append; + $content = ".HP\n\x83$1\n"; + $indent = 80; # not continued + } + + # 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 .= "$1\n"; + } + + # Append continuations. + while (s/^ {$indent}(\S.*)\n//) + { + $matched .= $& if %append; + $content .= "\x83$1\n" + } + + # Move to next paragraph. + s/^\n+//; + + for ($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; + } + + # 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} .= $content; +} + +# Refer to the real documentation. +unless ($opt_no_info) +{ + $sect = 'SEE ALSO'; + $include{$sect} ||= ''; + $include{$sect} .= ".PP\n" if $include{$sect}; + $include{$sect} .= <