/usr/share/namazu/filter/gnumeric.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: gnumeric.pl,v 1.2.4.2 2005-12-06 19:28:59 opengl2772 Exp $
# Copyright (C) 2004 Yukio USUDA
# 2004 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 gnumeric;
use strict;
require 'util.pl';
sub mediatype () {
return ('application/gnumeric');
}
sub status() {
my $gzippath = undef;
return 'yes' if (util::checklib('Compress/Zlib.pm'));
$gzippath = util::checkcmd('gzip');
return 'yes' if (defined $gzippath);
return 'no';
}
sub recursive () {
return 0;
}
sub pre_codeconv () {
return 0;
}
sub post_codeconv () {
return 0;
}
sub add_magic ($) {
my ($magic) = @_;
# gnumeric worksheet is gziped XML file.
$magic->addSpecials("application/gnumeric",
"^<gmr:Workbook",
"<gmr:Attributes>",
"<gmr:Attribute>",
"<gmr:Summary>",);
return;
}
sub filter ($$$$$) {
my ($orig_cfile, $contref, $weighted_str, $headings, $fields)
= @_;
filter_gnumeric($contref, $weighted_str, $headings, $fields);
gfilter::line_adjust_filter($contref);
gfilter::line_adjust_filter($weighted_str);
gfilter::white_space_adjust_filter($contref);
gfilter::show_filter_debug_info($contref, $weighted_str,
$fields, $headings);
return undef;
}
sub filter_gnumeric ($$$$) {
my ($contref, $weighted_str, $headings, $fields) = @_;
my $authorname = gnumeric::get_author($contref);
my $title = gnumeric::get_title($contref);
my $keywords = gnumeric::get_keywords($contref);
gnumeric::get_content($contref);
gnumeric::decode_entity(\$authorname);
gnumeric::decode_entity(\$title);
gnumeric::decode_entity(\$keywords);
gnumeric::decode_entity($contref);
# Code conversion for Japanese document.
# Japanese locarized gnumeric seem to use euc-jp code.
if (util::islang("ja")) {
codeconv::normalize_eucjp(\$authorname);
codeconv::normalize_eucjp(\$title);
codeconv::normalize_eucjp(\$keywords);
codeconv::normalize_eucjp($contref);
}
if ($authorname ne ""){
$fields->{'author'} = $authorname;
}
if ($title ne ""){
$fields->{'title'} = $title;
my $weight = $conf::Weight{'html'}->{'title'};
$$weighted_str .= "\x7f$weight\x7f$title\x7f/$weight\x7f\n";
}
if ($keywords ne ""){
my @weight_str = split(' ',$keywords);
for my $tmp (@weight_str) {
my $weight = $conf::Weight{'metakey'};
$$weighted_str .= "\x7f$weight\x7f$tmp\x7f/$weight\x7f\n" if $tmp;
}
}
}
sub get_content ($) {
my ($contref) = @_;
my @content;
push(@content, $$contref =~ m!<gmr:Cell .*?>(.*?)</gmr:Cell>!sg);
$$contref = join("\n", @content);
}
sub get_author ($){
my ($contref) = @_;
my $author = "";
if ($$contref =~ m!<gmr:name>author</gmr:name>\s+<gmr:val-string>(.*?)</gmr:val-string>!s) {
$author = $1;
}
if ($author eq ""){
if ($$contref =~ m!<gmr:name>manager</gmr:name>\s+<gmr:val-string>(.*?)</gmr:val-string>!s) {
$author = $1;
}
}
return $author;
}
sub get_title ($){
my ($contref) = @_;
my $title = "";
if ($$contref =~ m!<gmr:name>title</gmr:name>\s+<gmr:val-string>(.*?)</gmr:val-string>!s) {
$title = $1;
}
return $title;
}
sub get_keywords ($){
my ($contref) = @_;
my $keyword = "";
if ($$contref =~ m!<gmr:name>keywords</gmr:name>\s+<gmr:val-string>(.*?)</gmr:val-string>!s) {
$keyword = $1;
}
return $keyword;
}
# Decode a numberd entity. Exclude an invalid number.
sub decode_numbered_entity ($) {
my ($num) = @_;
if ($num <= 127) {
return ""
if (($num >= 0 && $num <= 8) || ($num >= 11 && $num <= 31) ||
$num == 127);
} else {
return "" if (!util::islang('ja'));
# gnumeric use numberd entity for multibyte chars.
# Japanese is EUC-JP.
return "" if ($num < 0xa1 || $num > 0xfe);
}
chr($num);
}
# Decode an entity. Ignore characters of right half of ISO-8859-1.
# Because it can't be handled in EUC encoding.
# This function provides sequential entities like: " < >
sub decode_entity ($) {
my ($text) = @_;
return unless defined($$text);
$$text =~ s/&#(\d+);/decode_numbered_entity($1)/ge;
$$text =~ s/&#x([\da-f]+)[;\s]/decode_numbered_entity(hex($1))/gei;
$$text =~ s/"[;\s]/\"/g; #"
$$text =~ s/&apos[;\s]/\'/g; #"
$$text =~ s/&[;\s]/&/g;
$$text =~ s/<[;\s]/</g;
$$text =~ s/>[;\s]/>/g;
$$text =~ s/ [;\s]/ /g;
}
1;
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