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Diffstat (limited to 'contrib/groffer/perl/roff2.pl')
| -rwxr-xr-x | contrib/groffer/perl/roff2.pl | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/contrib/groffer/perl/roff2.pl b/contrib/groffer/perl/roff2.pl new file mode 100755 index 00000000..c3e6047f --- /dev/null +++ b/contrib/groffer/perl/roff2.pl @@ -0,0 +1,223 @@ +#! /usr/bin/env perl + +# roff2* - transform roff files into other formats + +# Source file position: <groff-source>/contrib/groffer/perl/roff2.pl +# Installed position: <prefix>/bin/roff2* + +# Copyright (C) 2006, 2008, 2009 Free Software Foundation, Inc. +# Written by Bernd Warken <groff-bernd.warken-72@web.de>. + +# Last update: 5 Jan 2009 + +# This file is part of `groffer', which is part of `groff'. + +# `groff' is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# `groff' is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +######################################################################## + +require v5.6; + +use strict; +use warnings; +use File::Spec; + +# temporary dir and files +use File::Temp qw/ tempfile /; + +my $Dev_Null = File::Spec->devnull(); +my $Mode; +my $Name; +{ + my ($v, $d); + ($v, $d, $Name) = File::Spec->splitpath($0); + die "wrong program name: $Name;" + if $Name !~ /^roff2[a-z]/; +} +$Mode = $Name; +$Mode =~ s/^roff2//; + +my $Groff_Version = `groff --version 2>$Dev_Null`; +die "$Name error: groff does not work;" if $?; +my $Groffer_Version = `groffer --version 2>$Dev_Null`; +my $Has_Groffer = ! $?; + +if ($Has_Groffer) { + foreach (@ARGV) { + last if $_ eq '--'; + next if $_ eq '-'; + if ($_ eq '-v' || '--version' =~ m|^$_|) { + print $Name, ' in ', $Groffer_Version; + exit 0; + } + if ($_ eq '-h' || '--help' =~ m|^$_|) { + &usage_with_groffer(); + exit 0; + } + } + system('groffer', '--to-stdout', "--$Mode", @ARGV); + exit $?; +} else { + my @filespec; + my $double_minus; + foreach (@ARGV) { + if ($double_minus) { + push @filespec, $_; + next; + } + if ($_ eq '--') { + $double_minus = 1; + next; + } + if ($_ eq '-') { + push @filespec, '-'; + next; + } + if ($_ eq '-v' || '--version' =~ m|^$_|) { + print $Name, ' in ', $Groff_Version; + exit 0; + } + if ($_ eq '-h' || '--help' =~ m|^$_|) { + &usage_without_groffer(); + exit 0; + } + if ($_ =~ /^-/) { + &error_no_groffer(); + &error_no_options(); + next; + } + if (-f && -r) { + push @filespec, $_; + } else { + &error_no_groffer(); + print STDERR "$_ is not an existing, readable file.\n"; + } + } + + @filespec = ('-') unless @filespec; + my $has_stdin; + foreach (@filespec) { + if ($_ eq '-') { + $has_stdin =1; + last; + } + } + + if ($has_stdin) { + my $tempdir; + foreach ($ENV{'GROFF_TMPDIR'}, $ENV{'TMPDIR'}, $ENV{'TMP'}, + $ENV{'TEMP'}, $ENV{'TEMPDIR'}, + File::Spec->catfile($ENV{'HOME'}, 'tmp')) { + if ($_ && -d $_ && -w $_) { + $tempdir = $_; + last; + } + } + my $template = $Name . '_XXXX'; + my ($fh, $stdin); + if ($tempdir) { + ($fh, $stdin) = tempfile($template, UNLINK => 1, DIR => $tempdir) || + die "$Name: could not create temporary file;"; + } else { + ($fh, $stdin) = tempfile($template, UNLINK => 1) || + die "$Name: could not create temporary file;"; + } + open $fh, ">$stdin"; + print $fh $_ foreach <STDIN>; + + foreach (@filespec) { + $_ = $stdin if $_ eq '-'; + } + } # if $has_stdin + + my $grog; + my $groff_options = "-T$Mode"; + $groff_options = '-TX75-12 -Z' if $Mode eq 'x'; + $groff_options = '-Tlatin1' if $Mode eq 'text'; + if ($Mode eq 'pdf') { + my $ps2pdf; + my @path = File::Spec->path(); + foreach (@path) { + my $file = File::Spec->catfile($_, 'ps2pdf'); + if (-f $file && -x $file) { + $ps2pdf = "$file -"; + last; + } + } + unless ($ps2pdf) { + foreach (@path) { + my $file = File::Spec->catfile($_, 'gs'); + if (-f $file && -x $file) { + $ps2pdf = $file . ' -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite ' . + '-sOutputFile=- -c save pop -f -'; + last; + } + } + } + $grog = `grog -Tps @filespec`; + chomp $grog; + system("$grog | $ps2pdf"); + exit $?; + } else { + $grog = `grog $groff_options @filespec`; + chomp $grog; + system($grog); + exit $?; + } +} + +my $error_no_groffer; +sub error_no_groffer { + return 1 if $error_no_groffer; + $error_no_groffer = 1; + print STDERR "$Name: groffer is not available.\n"; +} + +my $error_no_options; +sub error_no_options { + return 1 if $error_no_options; + $error_no_groffer = 1; + print STDERR "$Name: groffer options are not allowed.\n"; +} + +sub usage_with_groffer { + print <<EOF; +usage: $Name [option]... [--] [filespec]... + +-h | --help print usage information +-v | --version print version information + +All other options are arbitrary options of `groffer'; the options +override the behavior of this program. + +`filespec's are the same as in `groffer': either the names of +existing, readable files or `-' for standard input or a search pattern +for man pages. No `filespec' assumes standard input automatically. +EOF +} + +sub usage_without_groffer { + print <<EOF; +usage: $Name [option]... [--] [filespec]... + +-h | --help print usage information +-v | --version print version information + +No other options are allowed because `groffer' is not available. + +The only `filespec's allowed are the names of existing, readable files +or `-' for standard input. No `filespec' assumes standard input +automatically. +EOF +} |