/usr/share/namazu/filter/postscript.pl is in namazu2-index-tools 2.0.21-21.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# -*- Perl -*-
# $Id: postscript.pl,v 1.4.4.10 2005-06-06 06:13:35 opengl2772 Exp $
# Copyright (C) 2000-2005 Namazu Project All rights reserved.
# This is free software with ABSOLUTELY NO WARRANTY.
#
# 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 versions 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
#
# This file must be encoded in EUC-JP encoding
#
package postscript;
use strict;
require 'util.pl';
my $psconvpath = undef;
my @psconvopts = undef;
sub mediatype() {
return ('application/postscript');
}
sub status() {
if (util::islang("ja")) {
$psconvpath = util::checkcmd('ps2text');
} else {
$psconvpath = util::checkcmd('ps2ascii');
}
return 'no' unless (defined $psconvpath);
return 'yes';
}
sub recursive() {
return 0;
}
sub pre_codeconv() {
return 0;
}
sub post_codeconv () {
return 0;
}
sub add_magic ($) {
return;
}
sub filter ($$$$$) {
my ($orig_cfile, $cont, $weighted_str, $headings, $fields)
= @_;
my $cfile = defined $orig_cfile ? $$orig_cfile : '';
util::vprint("Processing postscript file ... (using '$psconvpath')\n");
my $tmpfile = util::tmpnam('NMZ.postscript');
{
my $fh = util::efopen("> $tmpfile");
print $fh $$cont;
util::fclose($fh);
}
{
my $landscape = 0;
my $fh = util::efopen("< $tmpfile");
while (<$fh>) {
last if (/^%%EndComments$/);
$landscape = 1 if (/^%%Orientation: Landscape$/i);
}
util::fclose($fh);
undef $fh;
if (util::islang("ja") && $landscape) {
@psconvopts = ("-l");
} else {
@psconvopts = ();
}
}
{
my %env = (
"LC_ALL" => undef,
"LANG" => $util::LANG,
);
my @cmd = ($psconvpath, @psconvopts, $tmpfile);
my $fh_out = IO::File->new_tmpfile();
my $status = util::syscmd(
command => \@cmd,
option => {
"stdout" => $fh_out,
"stderr" => "/dev/null",
},
env => \%env,
);
my $size = util::filesize($fh_out);
if ($size == 0) {
util::fclose($fh_out);
unlink $tmpfile;
return "Unable to convert postscript file ($psconvpath error occurred)";
}
if ($size > $conf::FILE_SIZE_MAX) {
util::fclose($fh_out);
unlink $tmpfile;
return 'Too large postscript file';
}
$$cont = util::readfile($fh_out);
util::fclose($fh_out);
}
unlink $tmpfile;
# codeconv::toeuc($cont);
codeconv::codeconv_document($cont);
gfilter::line_adjust_filter($cont);
gfilter::line_adjust_filter($weighted_str);
gfilter::white_space_adjust_filter($cont);
$fields->{'title'} = gfilter::filename_to_title($cfile, $weighted_str)
unless $fields->{'title'};
gfilter::show_filter_debug_info($cont, $weighted_str,
$fields, $headings);
return undef;
}
1;
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