| 1 | ###########################################################################
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| 2 | #
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| 3 | # OAIPlug.pm -- basic Open Archives Initiative (OAI) plugin
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| 4 | #
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| 5 | # A component of the Greenstone digital library software
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| 6 | # from the New Zealand Digital Library Project at the
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| 7 | # University of Waikato, New Zealand.
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| 8 | #
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| 9 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 10 | #
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| 11 | # This program is free software; you can redistribute it and/or modify
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| 12 | # it under the terms of the GNU General Public License as published by
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| 13 | # the Free Software Foundation; either version 2 of the License, or
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| 14 | # (at your option) any later version.
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| 15 | #
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| 16 | # This program is distributed in the hope that it will be useful,
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| 17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | # GNU General Public License for more details.
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| 20 | #
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| 21 | # You should have received a copy of the GNU General Public License
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| 22 | # along with this program; if not, write to the Free Software
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| 23 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 24 | #
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| 25 | ###########################################################################
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| 26 |
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| 27 | package OAIPlugin;
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| 28 |
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| 29 | use unicode;
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| 30 | use util;
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| 31 |
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| 32 | use strict;
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| 33 | no strict 'refs'; # allow filehandles to be variables and viceversa
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| 34 |
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| 35 | use ReadXMLFile;
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| 36 | use ReadTextFile; # needed for subroutine textcat_get_language_encoding
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| 37 | use metadatautil;
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| 38 |
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| 39 | sub BEGIN {
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| 40 | @OAIPlugin::ISA = ('ReadXMLFile', 'ReadTextFile');
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| 41 | }
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| 42 |
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| 43 | my $set_list =
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| 44 | [ { 'name' => "auto",
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| 45 | 'desc' => "{OAIPlugin.metadata_set.auto}" },
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| 46 | { 'name' => "dc",
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| 47 | 'desc' => "{OAIPlugin.metadata_set.dc}" }
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| 48 | ];
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| 49 |
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| 50 | my $arguments =
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| 51 | [ { 'name' => "process_exp",
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| 52 | 'desc' => "{BasePlugin.process_exp}",
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| 53 | 'type' => "regexp",
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| 54 | 'reqd' => "no",
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| 55 | 'deft' => &get_default_process_exp() },
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| 56 | { 'name' => "metadata_set",
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| 57 | 'desc' => "{OAIPlugin.metadata_set}",
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| 58 | 'type' => "enumstring",
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| 59 | 'reqd' => "no",
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| 60 | 'list' => $set_list,
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| 61 | 'deft' => "dc" },
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| 62 | { 'name' => "document_field",
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| 63 | 'desc' => "{OAIPlugin.document_field}",
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| 64 | 'type' => "metadata",
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| 65 | 'reqd' => "no",
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| 66 | 'deft' => "gi.Sourcedoc" }
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| 67 | ];
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| 68 |
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| 69 | my $options = { 'name' => "OAIPlugin",
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| 70 | 'desc' => "{OAIPlugin.desc}",
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| 71 | 'abstract' => "no",
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| 72 | 'inherits' => "yes",
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| 73 | 'explodes' => "yes",
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| 74 | 'args' => $arguments };
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| 75 |
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| 76 |
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| 77 | sub new {
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| 78 | my ($class) = shift (@_);
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| 79 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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| 80 | push(@$pluginlist, $class);
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| 81 |
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| 82 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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| 83 | push(@{$hashArgOptLists->{"OptList"}},$options);
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| 84 |
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| 85 | new ReadTextFile($pluginlist, $inputargs, $hashArgOptLists,1);
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| 86 | my $self = new ReadXMLFile($pluginlist, $inputargs, $hashArgOptLists);
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| 87 |
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| 88 | if ($self->{'info_only'}) {
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| 89 | # don't worry about modifying options
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| 90 | return bless $self, $class;
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| 91 | }
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| 92 | # trim any ex. from document field iff it's the only metadata namespace prefix
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| 93 | $self->{'document_field'} =~ s/^ex\.([^.]+)$/$1/;
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| 94 | return bless $self, $class;
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| 95 | }
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| 96 |
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| 97 | sub get_default_process_exp {
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| 98 | my $self = shift (@_);
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| 99 |
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| 100 | return q^(?i)(\.oai)$^;
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| 101 | }
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| 102 |
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| 103 | sub get_doctype {
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| 104 | my $self = shift(@_);
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| 105 |
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| 106 | return "OAI-PMH";
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| 107 | }
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| 108 |
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| 109 | sub xml_start_document {
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| 110 | my $self = shift (@_);
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| 111 | $self->{'in_metadata_node'} = 0;
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| 112 | $self->{'rawxml'} = "";
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| 113 | $self->{'saved_metadata'} = {};
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| 114 | }
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| 115 |
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| 116 | sub xml_end_document {
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| 117 | }
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| 118 |
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| 119 | sub xml_doctype {
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| 120 | my $self = shift(@_);
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| 121 |
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| 122 | my ($expat, $name, $sysid, $pubid, $internal) = @_;
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| 123 |
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| 124 | ##die "" if ($name !~ /^OAI-PMH$/);
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| 125 |
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| 126 | my $outhandle = $self->{'outhandle'};
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| 127 | print $outhandle "OAIPlugin: processing $self->{'file'}\n" if $self->{'verbosity'} > 1;
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| 128 | print STDERR "<Processing n='$self->{'file'}' p='OAIPlugin'>\n" if $self->{'gli'};
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| 129 |
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| 130 | }
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| 131 |
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| 132 |
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| 133 | sub xml_start_tag {
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| 134 | my $self = shift(@_);
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| 135 | my ($expat,$element) = @_;
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| 136 |
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| 137 | my %attr_hash = %_;
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| 138 |
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| 139 | my $attr = "";
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| 140 | map { $attr .= " $_=$attr_hash{$_}"; } keys %attr_hash;
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| 141 |
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| 142 | $self->{'rawxml'} .= "<$element$attr>";
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| 143 |
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| 144 | if ($element eq "metadata") {
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| 145 | $self->{'in_metadata_node'} = 1;
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| 146 | $self->{'metadata_xml'} = "";
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| 147 | }
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| 148 |
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| 149 | if ($self->{'in_metadata_node'}) {
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| 150 | $self->{'metadata_xml'} .= "<$element$attr>";
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| 151 | }
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| 152 | }
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| 153 |
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| 154 | sub xml_end_tag {
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| 155 | my $self = shift(@_);
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| 156 | my ($expat, $element) = @_;
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| 157 |
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| 158 | $self->{'rawxml'} .= "</$element>";
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| 159 |
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| 160 | if ($self->{'in_metadata_node'}) {
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| 161 | $self->{'metadata_xml'} .= "</$element>";
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| 162 | }
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| 163 |
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| 164 | if ($element eq "metadata") {
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| 165 | my $textref = \$self->{'metadata_xml'};
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| 166 | #my $metadata = $self->{'metadata'};
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| 167 | my $metadata = $self->{'saved_metadata'};
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| 168 | $self->extract_oai_metadata($textref,$metadata);
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| 169 |
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| 170 | $self->{'in_metadata_node'} = 0;
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| 171 | }
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| 172 |
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| 173 |
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| 174 | }
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| 175 |
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| 176 | sub xml_text {
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| 177 | my $self = shift(@_);
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| 178 | my ($expat) = @_;
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| 179 |
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| 180 | $self->{'rawxml'} .= $_;
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| 181 |
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| 182 | if ($self->{'in_metadata_node'}) {
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| 183 | $self->{'metadata_xml'} .= $_;
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| 184 | }
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| 185 | }
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| 186 |
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| 187 | sub can_process_this_file_for_metadata {
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| 188 | my $self = shift(@_);
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| 189 |
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| 190 | return $self->can_process_this_file(@_);
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| 191 | }
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| 192 |
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| 193 |
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| 194 | sub metadata_read {
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| 195 | my $self = shift (@_);
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| 196 |
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| 197 | my ($pluginfo, $base_dir, $file, $block_hash,
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| 198 | $extrametakeys, $extrametadata, $extrametafile,
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| 199 | $processor, $gli, $aux) = @_;
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| 200 |
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| 201 | # can we process this file??
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| 202 | my ($filename_full_path, $filename_no_path) = &util::get_full_filenames($base_dir, $file);
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| 203 | return undef unless $self->can_process_this_file_for_metadata($filename_full_path);
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| 204 |
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| 205 | if (!$self->parse_file($filename_full_path, $file, $gli)) {
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| 206 | $self->{'saved_metadata'} = undef;
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| 207 | return undef;
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| 208 | }
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| 209 |
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| 210 | my $new_metadata = $self->{'saved_metadata'};
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| 211 | $self->{'saved_metadata'} = undef;
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| 212 |
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| 213 | # add the pretty metadata table as metadata
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| 214 | my $ppmd_table = $self->{'ppmd_table'};
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| 215 | $new_metadata->{'prettymd'} = $ppmd_table;
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| 216 | $self->{'ppmd_table'} = undef;
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| 217 |
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| 218 | my $document_metadata_field = $self->{'document_field'};
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| 219 | my $url_array = $new_metadata->{$document_metadata_field};
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| 220 | if (!defined $url_array) {
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| 221 | # try ex.
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| 222 | $url_array = $new_metadata->{"ex.$document_metadata_field"};
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| 223 | }
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| 224 | my $num_urls = (defined $url_array) ? scalar(@$url_array) : 0;
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| 225 | ##print STDERR "$num_urls urls for $file\n";
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| 226 | my $srcdoc_exists = 0;
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| 227 | my $srcdoc_pos = 0;
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| 228 | my $filename_dir = &util::filename_head($filename_full_path);
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| 229 |
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| 230 | # filenames in extrametadata must be relative to current dir, as
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| 231 | # DirectoryPlugin adds path info on itself
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| 232 | my ($filename_for_metadata) = $file =~ /([^\\\/]+)$/; # this assumes there will only be one record per oai file - is this always the case??
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| 233 | for (my $i=0; $i<$num_urls; $i++) {
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| 234 |
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| 235 | if ($url_array->[$i] !~ m/^(https?|ftp):/) {
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| 236 |
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| 237 | my $src_filename = &util::filename_cat($filename_dir, $url_array->[$i]);
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| 238 | if (-e $src_filename) {
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| 239 | $srcdoc_pos = $i;
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| 240 | $srcdoc_exists = 1;
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| 241 | # get the slashes the right way, use filename_cat
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| 242 | $filename_for_metadata = &util::filename_cat($url_array->[$i]);
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| 243 | last;
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| 244 | }
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| 245 | }
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| 246 | }
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| 247 |
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| 248 | if ($srcdoc_exists) {
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| 249 | $self->{'oai-files'}->{$file}->{'srcdoc_exists'} = 1;
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| 250 | }
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| 251 | else {
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| 252 | # save the rawxml for the source document
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| 253 | $self->{'oai-files'}->{$file}->{'srcdoc_exists'} = 0;
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| 254 | $self->{'oai-files'}->{$file}->{'rawxml'} = $self->{'rawxml'};
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| 255 | $self->{'rawxml'} = "";
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| 256 | }
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| 257 |
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| 258 | # return all the metadata we have extracted to the caller.
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| 259 | # Directory plug will pass it back in at read time, so we don't need to extract it again.
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| 260 | # extrametadata keys should be regular expressions
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| 261 | $filename_for_metadata = &util::filename_to_regex($filename_for_metadata);
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| 262 | $extrametadata->{$filename_for_metadata} = $new_metadata;
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| 263 | push(@$extrametakeys, $filename_for_metadata);
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| 264 | if ($srcdoc_exists) {
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| 265 | if (!defined $extrametafile->{$filename_for_metadata}) {
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| 266 | $extrametafile->{$filename_for_metadata} = {};
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| 267 | }
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| 268 | #maps the file to full path
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| 269 | $extrametafile->{$filename_for_metadata}->{$file} = $filename_full_path;
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| 270 | }
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| 271 | return 1;
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| 272 |
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| 273 | }
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| 274 |
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| 275 |
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| 276 | sub read {
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| 277 | my $self = shift (@_);
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| 278 |
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| 279 | my ($pluginfo, $base_dir, $file, $block_hash, $metadata, $processor, $maxdocs, $total_count, $gli) = @_;
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| 280 |
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| 281 | if (!defined $self->{'oai-files'}->{$file}) {
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| 282 | return undef;
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| 283 | }
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| 284 |
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| 285 | my $srcdoc_exists = $self->{'oai-files'}->{$file}->{'srcdoc_exists'};
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| 286 | if ($srcdoc_exists) {
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| 287 | # do nothing more - all the metadata has been extracted and associated with the srcdoc
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| 288 | # no more need to access details of this $file => tidy up as you go
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| 289 | delete $self->{'oai-files'}->{$file};
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| 290 | return 0; # not processed here, but don't pass on to rest of plugins
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| 291 | }
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| 292 |
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| 293 | my $filename = $file;
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| 294 | $filename = &util::filename_cat ($base_dir, $file) if $base_dir =~ /\w/;
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| 295 |
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| 296 | # Do encoding stuff on metadata
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| 297 | my ($language, $encoding) = $self->textcat_get_language_encoding ($filename);
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| 298 |
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| 299 | # create a new document
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| 300 | my $doc_obj = new doc ($filename, "indexed_doc", $self->{'file_rename_method'});
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| 301 | my $top_section = $doc_obj->get_top_section;
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| 302 | my $plugin_type = $self->{'plugin_type'};
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| 303 |
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| 304 | my ($filemeta) = $file =~ /([^\\\/]+)$/;
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| 305 | my $plugin_filename_encoding = $self->{'filename_encoding'};
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| 306 | my $filename_encoding = $self->deduce_filename_encoding($file,$metadata,$plugin_filename_encoding);
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| 307 | $self->set_Source_metadata($doc_obj, $filename, $filename_encoding);
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| 308 |
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| 309 | $doc_obj->add_utf8_metadata($top_section, "Language", $language);
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| 310 | $doc_obj->add_utf8_metadata($top_section, "Encoding", $encoding);
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| 311 | $doc_obj->add_utf8_metadata($top_section, "Plugin", $plugin_type);
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| 312 | $doc_obj->add_metadata($top_section, "FileFormat", "OAI");
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| 313 | $doc_obj->add_metadata($top_section, "FileSize", (-s $filename));
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| 314 |
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| 315 | # include any metadata passed in from previous plugins
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| 316 | # note that this metadata is associated with the top level section
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| 317 | # this will include all the metadata from the oai file that we extracted
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| 318 | # during metadata_read
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| 319 | $self->extra_metadata ($doc_obj, $doc_obj->get_top_section(), $metadata);
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| 320 |
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| 321 | # do plugin specific processing of doc_obj
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| 322 | my $text = $self->{'oai-files'}->{$file}->{'rawxml'};
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| 323 | delete $self->{'oai-files'}->{$file};
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| 324 |
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| 325 | unless (defined ($self->process(\$text, $pluginfo, $base_dir, $file, $metadata, $doc_obj))) {
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| 326 | print STDERR "<ProcessingError n='$file'>\n" if ($gli);
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| 327 | return -1;
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| 328 | }
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| 329 |
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| 330 | # do any automatic metadata extraction
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| 331 | $self->auto_extract_metadata ($doc_obj);
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| 332 |
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| 333 | # add an OID
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| 334 | $self->add_OID($doc_obj);
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| 335 |
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| 336 | # process the document
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| 337 | $processor->process($doc_obj);
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| 338 |
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| 339 | $self->{'num_processed'} ++;
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| 340 |
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| 341 | return 1; # processed the file
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| 342 | }
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| 343 |
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| 344 |
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| 345 | # do plugin specific processing of doc_obj
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| 346 | sub process {
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| 347 | my $self = shift (@_);
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| 348 | my ($textref, $pluginfo, $base_dir, $file, $metadata, $doc_obj, $gli) = @_;
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| 349 | my $outhandle = $self->{'outhandle'};
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| 350 |
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| 351 | print STDERR "<Processing n='$file' p='OAIPlugin'>\n" if ($gli);
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| 352 | print $outhandle "OAIPlugin: processing $file\n"
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| 353 | if $self->{'verbosity'} > 1;
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| 354 |
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| 355 | my $cursection = $doc_obj->get_top_section();
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| 356 |
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| 357 | ## $self->extract_metadata ($textref, $metadata, $doc_obj, $cursection);
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| 358 |
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| 359 | # add text to document object
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| 360 |
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| 361 | # $$textref =~ s/<(.*?)>/$1 /g;
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| 362 | $$textref =~ s/</</g;
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| 363 | $$textref =~ s/>/>/g;
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| 364 | $$textref =~ s/\[/[/g;
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| 365 | $$textref =~ s/\]/]/g;
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| 366 |
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| 367 | $doc_obj->add_utf8_text($cursection, $$textref);
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| 368 |
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| 369 | return 1;
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| 370 | }
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| 371 |
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| 372 |
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| 373 | # Improvement is to merge this with newer version in MetadataPass
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| 374 |
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| 375 | sub open_prettyprint_metadata_table
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| 376 | {
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| 377 | my $self = shift(@_);
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| 378 |
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| 379 | my $att = "width=100% cellspacing=2";
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| 380 | my $style = "style=\'border-bottom: 4px solid #000080\'";
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| 381 |
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| 382 | $self->{'ppmd_table'} = "\n<table $att $style>";
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| 383 | }
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| 384 |
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| 385 | sub add_prettyprint_metadata_line
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| 386 | {
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| 387 | my $self = shift(@_);
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| 388 | my ($metaname, $metavalue_utf8) = @_;
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| 389 |
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| 390 | $metavalue_utf8 = &util::hyperlink_text($metavalue_utf8);
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| 391 |
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| 392 | $self->{'ppmd_table'} .= " <tr bgcolor=#b5d3cd>\n";
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| 393 | $self->{'ppmd_table'} .= " <td width=30%>\n";
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| 394 | $self->{'ppmd_table'} .= " $metaname\n";
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| 395 | $self->{'ppmd_table'} .= " </td>\n";
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| 396 | $self->{'ppmd_table'} .= " <td>\n";
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| 397 | $self->{'ppmd_table'} .= " $metavalue_utf8\n";
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| 398 | $self->{'ppmd_table'} .= " </td>\n";
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| 399 | $self->{'ppmd_table'} .= " </tr>\n";
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| 400 |
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| 401 | }
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| 402 |
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| 403 | sub close_prettyprint_metadata_table
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| 404 | {
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| 405 | my $self = shift(@_);
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| 406 |
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| 407 | $self->{'ppmd_table'} .= "</table>\n";
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| 408 | }
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| 409 |
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| 410 | my $qualified_dc_mapping = {
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| 411 | "alternative" => "dc.title",
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| 412 | "tableOfContents" => "dc.description",
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| 413 | "abstract" => "dc.description",
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| 414 | "created" => "dc.date",
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| 415 | "valid" => "dc.date",
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| 416 | "available" => "dc.date",
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| 417 | "issued" => "dc.date",
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| 418 | "modified" => "dc.date",
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| 419 | "dateAccepted" => "dc.date",
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| 420 | "dateCopyrighted" => "dc.date",
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|---|
| 421 | "dateSubmitted" => "dc.date",
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|---|
| 422 | "extent" => "dc.format",
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|---|
| 423 | "medium" => "dc.format",
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| 424 | "isVersionOf" => "dc.relation",
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|---|
| 425 | "hasVersion" => "dc.relation",
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|---|
| 426 | "isReplacedBy" => "dc.relation",
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|---|
| 427 | "replaces" => "dc.relation",
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|---|
| 428 | "isRequiredBy" => "dc.relation",
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|---|
| 429 | "requires" => "dc.relation",
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|---|
| 430 | "isPartOf" => "dc.relation",
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|---|
| 431 | "hasPart" => "dc.relation",
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|---|
| 432 | "isReferencedBy" => "dc.relation",
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|---|
| 433 | "references" => "dc.relation",
|
|---|
| 434 | "isFormatOf" => "dc.relation",
|
|---|
| 435 | "hasFormat" => "dc.relation",
|
|---|
| 436 | "conformsTo" => "dc.relation",
|
|---|
| 437 | "spatial" => "dc.coverage",
|
|---|
| 438 | "temporal" => "dc.coverage",
|
|---|
| 439 | # these are now top level elements in our qualified dc metadata set
|
|---|
| 440 | # "audience" => "dc.any",
|
|---|
| 441 | # "accrualMethod" => "dc.any",
|
|---|
| 442 | # "accrualPeriodicity" => "dc.any",
|
|---|
| 443 | # "accrualPolicy" => "dc.any",
|
|---|
| 444 | # "instructionalMethod" => "dc.any",
|
|---|
| 445 | # "provenance" => "dc.any",
|
|---|
| 446 | # "rightsHolder" => "dc.any",
|
|---|
| 447 | "mediator" => "dc.audience",
|
|---|
| 448 | "educationLevel" => "dc.audience",
|
|---|
| 449 | "accessRights" => "dc.rights",
|
|---|
| 450 | "license" => "dc.rights",
|
|---|
| 451 | "bibliographicCitation" => "dc.identifier"
|
|---|
| 452 | };
|
|---|
| 453 |
|
|---|
| 454 | sub remap_dc_metadata
|
|---|
| 455 | {
|
|---|
| 456 | my $self = shift(@_);
|
|---|
| 457 |
|
|---|
| 458 | my ($metaname) = @_;
|
|---|
| 459 |
|
|---|
| 460 | my ($prefix,$name) = ($metaname =~ m/^(.*?)\.(.*?)$/);
|
|---|
| 461 |
|
|---|
| 462 | if (defined $qualified_dc_mapping->{$name}) {
|
|---|
| 463 |
|
|---|
| 464 | return $qualified_dc_mapping->{$name}."^".$name;
|
|---|
| 465 | }
|
|---|
| 466 |
|
|---|
| 467 |
|
|---|
| 468 | return $metaname; # didn't get a match, return param passed in unchanged
|
|---|
| 469 | }
|
|---|
| 470 |
|
|---|
| 471 |
|
|---|
| 472 | sub extract_oai_metadata {
|
|---|
| 473 | my $self = shift (@_);
|
|---|
| 474 | my ($textref, $metadata) = @_;
|
|---|
| 475 | my $outhandle = $self->{'outhandle'};
|
|---|
| 476 |
|
|---|
| 477 | $self->open_prettyprint_metadata_table();
|
|---|
| 478 |
|
|---|
| 479 | if ($$textref =~ m/<metadata\s*>(.*?)<\/metadata\s*>/s)
|
|---|
| 480 | {
|
|---|
| 481 | my $metadata_text = $1;
|
|---|
| 482 |
|
|---|
| 483 | # locate and remove outermost tag (ignoring any attribute information in top-level tag)
|
|---|
| 484 | my ($outer_tagname,$inner_metadata_text) = ($metadata_text =~ m/<([^ >]+).*?>(.*?)<\/\1>/s);
|
|---|
| 485 | # split tag into namespace and tag name
|
|---|
| 486 | my($namespace,$top_level_prefix) = ($outer_tagname =~ m/^(.*?):(.*?)$/);
|
|---|
| 487 | # sometimes, the dc namespace is not specified as the prefix in each element (like <dc:title>)
|
|---|
| 488 | # but is rather defined in the wrapper element containing the various dc meta elements,
|
|---|
| 489 | # like <dc><title></title><creator></creator></dc>.
|
|---|
| 490 | # In such a case, we use this wrapper element as the top_level_prefix
|
|---|
| 491 |
|
|---|
| 492 | # if there was no prefix, then the tag itself becomes the top_level_prefix
|
|---|
| 493 | if(!defined $top_level_prefix && defined $outer_tagname) {
|
|---|
| 494 | $top_level_prefix = $outer_tagname;
|
|---|
| 495 | }
|
|---|
| 496 |
|
|---|
| 497 | #process each element one by one
|
|---|
| 498 | while ($inner_metadata_text =~ m/<([^ >]+).*?>(.*?)<\/\1>(.*)/s)
|
|---|
| 499 | {
|
|---|
| 500 |
|
|---|
| 501 | my $metaname = $1;
|
|---|
| 502 | my $metavalue = $2;
|
|---|
| 503 | $inner_metadata_text = $3;
|
|---|
| 504 |
|
|---|
| 505 | # greenstone uses . for namespace, while oai uses :
|
|---|
| 506 | $metaname =~ s/:/\./;
|
|---|
| 507 | # if there is no namespace, then we use the outer tag name or
|
|---|
| 508 | # namespace for this element
|
|---|
| 509 | if ($metaname !~ m/\./)
|
|---|
| 510 | {
|
|---|
| 511 | $metaname = "$top_level_prefix.$metaname";
|
|---|
| 512 | }
|
|---|
| 513 |
|
|---|
| 514 | # if metadata set is auto, leave as is, otherwise convert to
|
|---|
| 515 | # specified namespace
|
|---|
| 516 | if ($self->{'metadata_set'} ne "auto") {
|
|---|
| 517 | if ($metaname !~ /^gi\./) { # hack to not overwrite gi metadata
|
|---|
| 518 | $metaname =~ s/^([^\.]*)\./$self->{'metadata_set'}\./;
|
|---|
| 519 | if ($self->{'metadata_set'} eq "dc") {
|
|---|
| 520 | # convert qualified dc terms to gs version, e.g.
|
|---|
| 521 | # spatial becomes coverage^spatial
|
|---|
| 522 | $metaname = $self->remap_dc_metadata($metaname);
|
|---|
| 523 | }
|
|---|
| 524 | }
|
|---|
| 525 | }
|
|---|
| 526 |
|
|---|
| 527 | # uppercase the first char of the name
|
|---|
| 528 | $metaname =~ s/\.(.)/\.\u$1/;
|
|---|
| 529 | $metavalue =~ s/\[/[/g;
|
|---|
| 530 | $metavalue =~ s/\]/]/g;
|
|---|
| 531 |
|
|---|
| 532 | # so that GLI can see this metadata, store here as ex.dc.Title etc
|
|---|
| 533 | my $ex_metaname = $metaname;
|
|---|
| 534 | $ex_metaname =~ s/^ex\.//; # remove any pre-existing ex. prefix
|
|---|
| 535 | $ex_metaname = "ex.$ex_metaname"; # at last can prefix ex.
|
|---|
| 536 |
|
|---|
| 537 | if (defined $metadata->{$ex_metaname})
|
|---|
| 538 | {
|
|---|
| 539 | push(@{$metadata->{$ex_metaname}},$metavalue);
|
|---|
| 540 |
|
|---|
| 541 | }
|
|---|
| 542 | else
|
|---|
| 543 | {
|
|---|
| 544 | $metadata->{$ex_metaname} = [ $metavalue ];
|
|---|
| 545 | }
|
|---|
| 546 |
|
|---|
| 547 | # but don't add ex to the pretty print line
|
|---|
| 548 | $self->add_prettyprint_metadata_line($metaname, $metavalue);
|
|---|
| 549 |
|
|---|
| 550 | }
|
|---|
| 551 | }
|
|---|
| 552 |
|
|---|
| 553 | $self->close_prettyprint_metadata_table();
|
|---|
| 554 | }
|
|---|
| 555 |
|
|---|
| 556 | ## we know from the file extension, so doesn't need to check the doctype
|
|---|
| 557 | sub check_doctype {
|
|---|
| 558 |
|
|---|
| 559 | return 1;
|
|---|
| 560 | }
|
|---|
| 561 |
|
|---|
| 562 | 1;
|
|---|
