[537] | 1 | ###########################################################################
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| 2 | #
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| 3 | # doc.pm --
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| 4 | # A component of the Greenstone digital library software
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| 5 | # from the New Zealand Digital Library Project at the
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| 6 | # University of Waikato, New Zealand.
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| 7 | #
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| 8 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 9 | #
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[8894] | 10 | # This program is free software; you can redistr te it and/or modify
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[537] | 11 | # it under the terms of the GNU General Public License as published by
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| 12 | # the Free Software Foundation; either version 2 of the License, or
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| 13 | # (at your option) any later version.
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| 14 | #
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| 15 | # This program is distributed in the hope that it will be useful,
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| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | # GNU General Public License for more details.
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| 19 | #
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| 20 | # You should have received a copy of the GNU General Public License
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| 21 | # along with this program; if not, write to the Free Software
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| 22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | #
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| 24 | ###########################################################################
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| 25 |
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[1241] | 26 | # base class to hold documents
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[4] | 27 |
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| 28 | package doc;
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[3834] | 29 | eval {require bytes};
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[4] | 30 |
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[832] | 31 | BEGIN {
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[1241] | 32 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
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| 33 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib/dynamic/lib/site_perl/5.005/i686-linux");
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[832] | 34 | }
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| 35 |
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[15894] | 36 | use strict;
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[1241] | 37 | use unicode;
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| 38 | use util;
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| 39 | use ghtml;
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[8220] | 40 | use File::stat;
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[1241] | 41 | ##use hashdoc;
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[13172] | 42 | use docprint;
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[1241] | 43 |
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[4] | 44 | # the document type may be indexed_doc, nonindexed_doc, or
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| 45 | # classification
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| 46 |
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[18528] | 47 | our $OIDcount = 0;
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[2327] | 48 |
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[20412] | 49 | # rename_method can be 'url', 'none', 'base64'
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[4] | 50 | sub new {
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| 51 | my $class = shift (@_);
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[18319] | 52 | my ($source_filename, $doc_type, $rename_method) = @_;
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[1374] | 53 |
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[13770] | 54 |
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[1241] | 55 | my $self = bless {'associated_files'=>[],
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| 56 | 'subsection_order'=>[],
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| 57 | 'next_subsection'=>1,
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| 58 | 'subsections'=>{},
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| 59 | 'metadata'=>[],
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[2327] | 60 | 'text'=>"",
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| 61 | 'OIDtype'=>"hash"}, $class;
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[4] | 62 |
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[10217] | 63 | # used to set lastmodified here, but this can screw up the HASH ids, so
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| 64 | # the docsave processor now calls set_lastmodified
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[13770] | 65 |
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[23362] | 66 | $self->set_source_path($source_filename);
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[10217] | 67 |
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[7929] | 68 | if (defined $source_filename) {
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[15874] | 69 | $source_filename = &util::filename_within_collection($source_filename);
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[18508] | 70 | print STDERR "****** doc.pm::new(): no file rename method provided\n" unless $rename_method;
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[18319] | 71 | $self->set_source_filename ($source_filename, $rename_method);
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[7929] | 72 | }
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| 73 |
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[1374] | 74 | $self->set_doc_type ($doc_type) if defined $doc_type;
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[485] | 75 |
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[4] | 76 | return $self;
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| 77 | }
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[23362] | 78 |
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| 79 |
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| 80 | sub set_source_path
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| 81 | {
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| 82 | my $self = shift @_;
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| 83 | my ($source_filename) = @_;
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| 84 |
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| 85 | if (defined $source_filename) {
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| 86 | # On Windows the source_filename can be in terse DOS format
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| 87 | # e.g. test~1.txt
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| 88 |
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| 89 | $self->{'terse_source_path'} = $source_filename;
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| 90 |
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| 91 | if (-e $source_filename) {
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| 92 | # See if we can do better for Windows with a filename
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| 93 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
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| 94 | require Win32;
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| 95 | $self->{'source_path'} = Win32::GetLongPathName($source_filename);
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| 96 | }
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| 97 | else {
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| 98 | # For Unix-based systems, there is no difference between the two
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| 99 | $self->{'source_path'} = $source_filename;
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| 100 | }
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| 101 | }
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| 102 | else {
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| 103 | print STDERR "Warning: In doc::set_source_path(), file\n";
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| 104 | print STDERR " $source_filename\n";
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| 105 | print STDERR " does not exist\n";
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| 106 |
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| 107 | # (default) Set it to whatever we were given
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| 108 | $self->{'source_path'} = $source_filename;
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| 109 | }
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| 110 | }
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| 111 | else {
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| 112 | # Previous code for setting source_path allowed for
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| 113 | # it to be undefined, so continue this practice
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| 114 | $self->{'terse_source_path'} = undef;
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| 115 | $self->{'source_path'} = undef;
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| 116 | }
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| 117 | }
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| 118 |
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| 119 |
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| 120 | sub get_source_path
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| 121 | {
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| 122 | my $self = shift @_;
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| 123 |
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| 124 | return $self->{'terse_source_path'};
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| 125 | }
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| 126 |
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[10217] | 127 | # set lastmodified for OAI purposes, added by GRB, moved by kjdon
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[23939] | 128 | sub set_oailastmodified {
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| 129 | my $self = shift (@_);
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| 130 |
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| 131 | my $source_path = $self->{'terse_source_path'};
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| 132 |
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| 133 | if (defined $source_path && (-e $source_path)) {
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| 134 | my $current_time = time;
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| 135 |
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| 136 | my ($seconds, $minutes, $hours, $day_of_month, $month, $year,
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| 137 | $wday, $yday, $isdst) = localtime($current_time);
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| 138 |
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| 139 | my $date_modified = sprintf("%d%02d%02d",1900+$year,$month+1,$day_of_month);
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| 140 |
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| 141 | $self->add_utf8_metadata($self->get_top_section(), "oailastmodified", $current_time);
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| 142 | $self->add_utf8_metadata($self->get_top_section(), "oailastmodifieddate", $date_modified);
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| 143 | }
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| 144 | }
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| 145 |
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| 146 | # no longer used for OAI purposes, since lastmodified is not what we want as the
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| 147 | # Datestamp of a document. This doc metadata may be useful for general purposes.
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[10217] | 148 | sub set_lastmodified {
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| 149 | my $self = shift (@_);
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[4] | 150 |
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[23362] | 151 | my $source_path = $self->{'terse_source_path'};
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[13770] | 152 |
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| 153 | if (defined $source_path && (-e $source_path)) {
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| 154 |
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| 155 | my $file_stat = stat($source_path);
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[10217] | 156 | my $mtime = $file_stat->mtime;
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[21862] | 157 | my ($seconds, $minutes, $hours, $day_of_month, $month, $year,
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| 158 | $wday, $yday, $isdst) = localtime($mtime);
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| 159 |
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| 160 | my $date_modified = sprintf("%d%02d%02d",1900+$year,$month+1,$day_of_month);
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| 161 |
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[23923] | 162 | $self->add_utf8_metadata($self->get_top_section(), "lastmodified", $mtime);
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[21862] | 163 | $self->add_utf8_metadata($self->get_top_section(), "lastmodifieddate", $date_modified);
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[10217] | 164 | }
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| 165 | }
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| 166 |
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[1241] | 167 | # clone the $self object
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| 168 | sub duplicate {
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| 169 | my $self = shift (@_);
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| 170 |
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| 171 | my $newobj = {};
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| 172 |
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[8716] | 173 | foreach my $k (keys %$self) {
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[1241] | 174 | $newobj->{$k} = &clone ($self->{$k});
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| 175 | }
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| 176 |
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| 177 | bless $newobj, ref($self);
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| 178 | return $newobj;
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| 179 | }
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| 180 |
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| 181 | sub clone {
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| 182 | my ($from) = @_;
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| 183 | my $type = ref ($from);
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| 184 |
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| 185 | if ($type eq "HASH") {
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| 186 | my $to = {};
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[8716] | 187 | foreach my $key (keys %$from) {
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[1241] | 188 | $to->{$key} = &clone ($from->{$key});
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| 189 | }
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| 190 | return $to;
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| 191 | } elsif ($type eq "ARRAY") {
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| 192 | my $to = [];
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[8716] | 193 | foreach my $v (@$from) {
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[1241] | 194 | push (@$to, &clone ($v));
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| 195 | }
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| 196 | return $to;
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| 197 | } else {
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| 198 | return $from;
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| 199 | }
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| 200 | }
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| 201 |
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[2327] | 202 | sub set_OIDtype {
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| 203 | my $self = shift (@_);
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[12268] | 204 | my ($type, $metadata) = @_;
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[1241] | 205 |
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[26221] | 206 | if (defined $type && $type =~ /^(hash|hash_on_file|hash_on_ga_xml|incremental|filename|dirname|assigned)$/) {
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[2327] | 207 | $self->{'OIDtype'} = $type;
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| 208 | } else {
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| 209 | $self->{'OIDtype'} = "hash";
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| 210 | }
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[16792] | 211 |
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[12268] | 212 | if ($type =~ /^assigned$/) {
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| 213 | if (defined $metadata) {
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| 214 | $self->{'OIDmetadata'} = $metadata;
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| 215 | } else {
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| 216 | $self->{'OIDmetadata'} = "dc.Identifier";
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| 217 | }
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| 218 | }
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[2327] | 219 | }
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| 220 |
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[20412] | 221 | # rename_method can be 'url', 'none', 'base64'
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[1241] | 222 | sub set_source_filename {
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| 223 | my $self = shift (@_);
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[18319] | 224 | my ($source_filename, $rename_method) = @_;
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[1241] | 225 |
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[16578] | 226 | # Since the gsdlsourcefilename element goes into the doc.xml it has
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| 227 | # to be utf8. However, it should also *represent* the source filename
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| 228 | # (in the import directory) which may not be utf8 at all.
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[18319] | 229 | # For instance, if this meta element (gsdlsourcefilename) will be used
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| 230 | # by other applications that parse doc.xml in order to locate
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| 231 | # gsdlsourcefilename. Therefore, the solution is to URLencode or base64
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| 232 | # encode the real filename as this is a binary-to-text encoding meaning
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| 233 | # that the resulting string is ASCII (utf8). Decoding will give the original.
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[16578] | 234 |
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[18319] | 235 | # print STDERR "******URL/base64 encoding the gsdl_source_filename $source_filename ";
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| 236 |
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[16670] | 237 | # URLencode just the gsdl_source_filename, not the directory. Then prepend dir
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[23278] | 238 | $source_filename = $self->encode_filename($source_filename, $rename_method);
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| 239 | # my ($srcfilename,$dirname,$suffix)
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| 240 | # = &File::Basename::fileparse($source_filename, "\\.[^\\.]+\$");
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[16792] | 241 | # print STDERR "-> $srcfilename -> ";
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[23278] | 242 | # $srcfilename = &util::rename_file($srcfilename.$suffix, $rename_method);
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| 243 | # $source_filename = &util::filename_cat($dirname, $srcfilename);
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[16792] | 244 | # print STDERR "$source_filename\n";
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[16670] | 245 |
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[16578] | 246 | $self->set_utf8_metadata_element ($self->get_top_section(),
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[1241] | 247 | "gsdlsourcefilename",
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| 248 | $source_filename);
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| 249 | }
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| 250 |
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[23278] | 251 | sub encode_filename {
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| 252 | my $self = shift (@_);
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| 253 | my ($source_filename, $rename_method) = @_;
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| 254 |
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| 255 | my ($srcfilename,$dirname,$suffix)
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| 256 | = &File::Basename::fileparse($source_filename, "\\.[^\\.]+\$");
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| 257 | # print STDERR "-> $srcfilename -> ";
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| 258 | $srcfilename = &util::rename_file($srcfilename.$suffix, $rename_method);
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| 259 | $source_filename = &util::filename_cat($dirname, $srcfilename);
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| 260 |
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| 261 | return $source_filename;
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| 262 | }
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| 263 |
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[7569] | 264 | sub set_converted_filename {
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| 265 | my $self = shift (@_);
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| 266 | my ($converted_filename) = @_;
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| 267 |
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[16578] | 268 | # we know the converted filename is utf8
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| 269 | $self->set_utf8_metadata_element ($self->get_top_section(),
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[7569] | 270 | "gsdlconvertedfilename",
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| 271 | $converted_filename);
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| 272 | }
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| 273 |
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[1241] | 274 | # returns the source_filename as it was provided
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[19829] | 275 | sub get_unmodified_source_filename {
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| 276 | my $self = shift (@_);
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| 277 |
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[23362] | 278 | return $self->{'terse_source_path'};
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[19829] | 279 | }
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| 280 |
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| 281 | # returns the source_filename with whatever rename_method was given
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[1241] | 282 | sub get_source_filename {
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| 283 | my $self = shift (@_);
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| 284 |
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| 285 | return $self->get_metadata_element ($self->get_top_section(), "gsdlsourcefilename");
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| 286 | }
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| 287 |
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[19829] | 288 |
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| 289 |
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[7569] | 290 | # returns converted filename if available else returns source filename
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| 291 | sub get_filename_for_hashing {
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| 292 | my $self = shift (@_);
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| 293 |
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| 294 | my $filename = $self->get_metadata_element ($self->get_top_section(), "gsdlconvertedfilename");
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| 295 |
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| 296 | if (!defined $filename) {
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[11097] | 297 | my $plugin_name = $self->get_metadata_element ($self->get_top_section(), "Plugin");
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[10980] | 298 | # if NULPlug processed file, then don't give a filename
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[11097] | 299 | if (defined $plugin_name && $plugin_name eq "NULPlug") {
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[10980] | 300 | $filename = undef;
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[16670] | 301 | } else { # returns the URL encoded source filename!
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[10980] | 302 | $filename = $self->get_metadata_element ($self->get_top_section(), "gsdlsourcefilename");
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| 303 | }
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[7569] | 304 | }
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[23485] | 305 |
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| 306 | if (!&util::filename_is_absolute($filename)) {
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| 307 | $filename = &util::filename_cat($ENV{'GSDLCOLLECTDIR'},$filename);
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| 308 | }
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| 309 |
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[7569] | 310 | return $filename;
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| 311 | }
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| 312 |
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[1241] | 313 | sub set_doc_type {
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| 314 | my $self = shift (@_);
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| 315 | my ($doc_type) = @_;
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| 316 |
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| 317 | $self->set_metadata_element ($self->get_top_section(),
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| 318 | "gsdldoctype",
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| 319 | $doc_type);
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| 320 | }
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| 321 |
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[10217] | 322 | # returns the gsdldoctype as it was provided
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[1241] | 323 | # the default of "indexed_doc" is used if no document
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| 324 | # type was provided
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| 325 | sub get_doc_type {
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| 326 | my $self = shift (@_);
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| 327 |
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| 328 | my $doc_type = $self->get_metadata_element ($self->get_top_section(), "gsdldoctype");
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| 329 | return $doc_type if (defined $doc_type);
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| 330 | return "indexed_doc";
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| 331 | }
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| 332 |
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| 333 |
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| 334 | # look up the reference to the a particular section
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| 335 | sub _lookup_section {
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| 336 | my $self = shift (@_);
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| 337 | my ($section) = @_;
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| 338 |
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| 339 | my ($num);
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| 340 | my $sectionref = $self;
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| 341 |
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| 342 | while (defined $section && $section ne "") {
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[12327] | 343 |
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[1241] | 344 | ($num, $section) = $section =~ /^\.?(\d+)(.*)$/;
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[12327] | 345 |
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| 346 | $num =~ s/^0+(\d)/$1/ if defined $num ; # remove leading 0s
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| 347 |
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[1241] | 348 | $section = "" unless defined $section;
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| 349 |
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[12327] | 350 |
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[1241] | 351 | if (defined $num && defined $sectionref->{'subsections'}->{$num}) {
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| 352 | $sectionref = $sectionref->{'subsections'}->{$num};
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| 353 | } else {
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| 354 | return undef;
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| 355 | }
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| 356 | }
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| 357 |
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| 358 | return $sectionref;
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| 359 | }
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| 360 |
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[2327] | 361 | # calculate OID by hashing the contents of the document
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[1241] | 362 | sub _calc_OID {
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| 363 | my $self = shift (@_);
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| 364 | my ($filename) = @_;
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| 365 |
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[22855] | 366 |
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[1241] | 367 | my $osexe = &util::get_os_exe();
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| 368 |
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| 369 | my $hashfile_exe = &util::filename_cat($ENV{'GSDLHOME'},"bin",
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| 370 | $ENV{'GSDLOS'},"hashfile$osexe");
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[8504] | 371 |
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[1241] | 372 | my $result = "NULL";
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[22855] | 373 |
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[1679] | 374 |
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[1241] | 375 | if (-e "$hashfile_exe") {
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[1679] | 376 | # $result = `\"$hashfile_exe\" \"$filename\"`;
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[21862] | 377 | # $result = `hashfile$osexe \"$filename\" 2>&1`;
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[1679] | 378 | $result = `hashfile$osexe \"$filename\"`;
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[21862] | 379 |
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[1241] | 380 | ($result) = $result =~ /:\s*([0-9a-f]+)/i;
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| 381 | } else {
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| 382 | print STDERR "doc::_calc_OID $hashfile_exe could not be found\n";
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| 383 | }
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| 384 | return "HASH$result";
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| 385 | }
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| 386 |
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| 387 | # methods dealing with OID, not groups of them.
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| 388 |
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[2327] | 389 | # if $OID is not provided one is calculated
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[1241] | 390 | sub set_OID {
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| 391 | my $self = shift (@_);
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| 392 | my ($OID) = @_;
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[8504] | 393 |
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[8797] | 394 | my $use_hash_oid = 0;
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[17057] | 395 | # if an OID wasn't provided calculate one
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[1241] | 396 | if (!defined $OID) {
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| 397 | $OID = "NULL";
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[17025] | 398 | if ($self->{'OIDtype'} =~ /^hash/) {
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[8797] | 399 | $use_hash_oid = 1;
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| 400 | } elsif ($self->{'OIDtype'} eq "incremental") {
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[2327] | 401 | $OID = "D" . $OIDcount;
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| 402 | $OIDcount ++;
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[26221] | 403 | } elsif ($self->{'OIDtype'} eq "filename") {
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| 404 | my $filename = $self->get_source_filename();
|
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| 405 | $OID = &File::Basename::fileparse($filename, qr/\.[^.]*/);
|
---|
| 406 | $OID = &util::tidy_up_oid($OID);
|
---|
[8716] | 407 | } elsif ($self->{'OIDtype'} eq "dirname") {
|
---|
| 408 | $OID = 'J';
|
---|
| 409 | my $filename = $self->get_source_filename();
|
---|
[8797] | 410 | if (defined($filename)) { # && -e $filename) {
|
---|
[8716] | 411 | $OID = &File::Basename::dirname($filename);
|
---|
| 412 | if (defined $OID) {
|
---|
| 413 | $OID = 'J'.&File::Basename::basename($OID);
|
---|
[19617] | 414 | $OID = &util::tidy_up_oid($OID);
|
---|
[8716] | 415 | } else {
|
---|
[8797] | 416 | print STDERR "Failed to find base for filename ($filename)...generating hash id\n";
|
---|
| 417 | $use_hash_oid = 1;
|
---|
[8716] | 418 | }
|
---|
| 419 | } else {
|
---|
[8797] | 420 | print STDERR "Failed to find filename, generating hash id\n";
|
---|
| 421 | $use_hash_oid = 1;
|
---|
[8716] | 422 | }
|
---|
[2327] | 423 |
|
---|
[8797] | 424 | } elsif ($self->{'OIDtype'} eq "assigned") {
|
---|
[12268] | 425 | my $identifier = $self->get_metadata_element ($self->get_top_section(), $self->{'OIDmetadata'});
|
---|
[8797] | 426 | if (defined $identifier && $identifier ne "") {
|
---|
[17025] | 427 | $OID = $identifier;
|
---|
[19617] | 428 | $OID = &util::tidy_up_oid($OID);
|
---|
[8797] | 429 | } else {
|
---|
| 430 | # need a hash id
|
---|
[12268] | 431 | print STDERR "no $self->{'OIDmetadata'} metadata found, generating hash id\n";
|
---|
[8797] | 432 | $use_hash_oid = 1;
|
---|
| 433 | }
|
---|
| 434 |
|
---|
[2327] | 435 | } else {
|
---|
[8797] | 436 | $use_hash_oid = 1;
|
---|
| 437 | }
|
---|
| 438 |
|
---|
| 439 | if ($use_hash_oid) {
|
---|
[23562] | 440 | my $hash_on_file = 1;
|
---|
[17025] | 441 | if ($self->{'OIDtype'} eq "hash_on_ga_xml") {
|
---|
| 442 | $hash_on_file = 0;
|
---|
| 443 | }
|
---|
| 444 | if ($hash_on_file) {
|
---|
| 445 | # "hash" OID - feed file to hashfile.exe
|
---|
| 446 | my $filename = $self->get_filename_for_hashing();
|
---|
[23562] | 447 |
|
---|
[17025] | 448 | # -z: don't want to hash on the file if it is zero size
|
---|
| 449 | if (defined($filename) && -e $filename && !-z $filename) {
|
---|
| 450 | $OID = $self->_calc_OID ($filename);
|
---|
| 451 | } else {
|
---|
| 452 | $hash_on_file = 0;
|
---|
| 453 | }
|
---|
| 454 | }
|
---|
| 455 | if (!$hash_on_file) {
|
---|
| 456 | my $filename = &util::get_tmp_filename();
|
---|
[22855] | 457 | if (!open (OUTFILE, ">:utf8", $filename)) {
|
---|
[2327] | 458 | print STDERR "doc::set_OID could not write to $filename\n";
|
---|
| 459 | } else {
|
---|
[13172] | 460 | my $doc_text = &docprint::get_section_xml($self, $self->get_top_section());
|
---|
| 461 | print OUTFILE $doc_text;
|
---|
[2327] | 462 | close (OUTFILE);
|
---|
| 463 | }
|
---|
| 464 | $OID = $self->_calc_OID ($filename);
|
---|
| 465 | &util::rm ($filename);
|
---|
[1374] | 466 | }
|
---|
[1241] | 467 | }
|
---|
| 468 | }
|
---|
| 469 | $self->set_metadata_element ($self->get_top_section(), "Identifier", $OID);
|
---|
| 470 | }
|
---|
| 471 |
|
---|
| 472 | # this uses hashdoc (embedded c thingy) which is faster but still
|
---|
| 473 | # needs a little work to be suffiently stable
|
---|
| 474 | sub ___set_OID {
|
---|
| 475 | my $self = shift (@_);
|
---|
| 476 | my ($OID) = @_;
|
---|
| 477 |
|
---|
| 478 | # if an OID wasn't provided then calculate hash value based on document
|
---|
| 479 | if (!defined $OID)
|
---|
| 480 | {
|
---|
[13172] | 481 | my $hash_text = &docprint::get_section_xml($self, $self->get_top_section());
|
---|
[1241] | 482 | my $hash_len = length($hash_text);
|
---|
| 483 |
|
---|
| 484 | $OID = &hashdoc::buffer($hash_text,$hash_len);
|
---|
| 485 | }
|
---|
| 486 |
|
---|
| 487 | $self->set_metadata_element ($self->get_top_section(), "Identifier", $OID);
|
---|
| 488 | }
|
---|
| 489 |
|
---|
| 490 | # returns the OID for this document
|
---|
| 491 | sub get_OID {
|
---|
| 492 | my $self = shift (@_);
|
---|
| 493 | my $OID = $self->get_metadata_element ($self->get_top_section(), "Identifier");
|
---|
| 494 | return $OID if (defined $OID);
|
---|
| 495 | return "NULL";
|
---|
| 496 | }
|
---|
| 497 |
|
---|
| 498 | sub delete_OID {
|
---|
| 499 | my $self = shift (@_);
|
---|
| 500 |
|
---|
| 501 | $self->set_metadata_element ($self->get_top_section(), "Identifier", "NULL");
|
---|
| 502 | }
|
---|
| 503 |
|
---|
| 504 |
|
---|
| 505 | # methods for manipulating section names
|
---|
| 506 |
|
---|
| 507 | # returns the name of the top-most section (the top
|
---|
| 508 | # level of the document
|
---|
| 509 | sub get_top_section {
|
---|
| 510 | my $self = shift (@_);
|
---|
| 511 |
|
---|
| 512 | return "";
|
---|
| 513 | }
|
---|
| 514 |
|
---|
| 515 | # returns a section
|
---|
| 516 | sub get_parent_section {
|
---|
| 517 | my $self = shift (@_);
|
---|
| 518 | my ($section) = @_;
|
---|
| 519 |
|
---|
| 520 | $section =~ s/(^|\.)\d+$//;
|
---|
| 521 |
|
---|
| 522 | return $section;
|
---|
| 523 | }
|
---|
| 524 |
|
---|
| 525 | # returns the first child section (or the end child
|
---|
| 526 | # if there isn't any)
|
---|
| 527 | sub get_begin_child {
|
---|
| 528 | my $self = shift (@_);
|
---|
| 529 | my ($section) = @_;
|
---|
| 530 |
|
---|
| 531 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 532 | return "" unless defined $section_ptr;
|
---|
| 533 |
|
---|
| 534 | if (defined $section_ptr->{'subsection_order'}->[0]) {
|
---|
| 535 | return "$section.$section_ptr->{'subsection_order'}->[0]";
|
---|
| 536 | }
|
---|
| 537 |
|
---|
| 538 | return $self->get_end_child ($section);
|
---|
| 539 | }
|
---|
| 540 |
|
---|
| 541 | # returns the next child of a parent section
|
---|
| 542 | sub get_next_child {
|
---|
| 543 | my $self = shift (@_);
|
---|
| 544 | my ($section) = @_;
|
---|
| 545 |
|
---|
| 546 | my $parent_section = $self->get_parent_section($section);
|
---|
| 547 | my $parent_section_ptr = $self->_lookup_section($parent_section);
|
---|
| 548 | return undef unless defined $parent_section_ptr;
|
---|
| 549 |
|
---|
| 550 | my ($section_num) = $section =~ /(\d+)$/;
|
---|
| 551 | return undef unless defined $section_num;
|
---|
| 552 |
|
---|
| 553 | my $i = 0;
|
---|
| 554 | my $section_order = $parent_section_ptr->{'subsection_order'};
|
---|
| 555 | while ($i < scalar(@$section_order)) {
|
---|
| 556 | last if $section_order->[$i] eq $section_num;
|
---|
| 557 | $i++;
|
---|
| 558 | }
|
---|
| 559 |
|
---|
| 560 | $i++; # the next child
|
---|
| 561 | if ($i < scalar(@$section_order)) {
|
---|
| 562 | return $section_order->[$i] if $parent_section eq "";
|
---|
| 563 | return "$parent_section.$section_order->[$i]";
|
---|
| 564 | }
|
---|
| 565 |
|
---|
| 566 | # no more sections in this level
|
---|
| 567 | return undef;
|
---|
| 568 | }
|
---|
| 569 |
|
---|
| 570 | # returns a reference to a list of children
|
---|
| 571 | sub get_children {
|
---|
| 572 | my $self = shift (@_);
|
---|
| 573 | my ($section) = @_;
|
---|
| 574 |
|
---|
| 575 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 576 | return [] unless defined $section_ptr;
|
---|
| 577 |
|
---|
| 578 | my @children = @{$section_ptr->{'subsection_order'}};
|
---|
| 579 |
|
---|
| 580 | map {$_ = "$section.$_"; $_ =~ s/^\.+//;} @children;
|
---|
| 581 | return \@children;
|
---|
| 582 | }
|
---|
| 583 |
|
---|
| 584 | # returns the child section one past the last one (which
|
---|
| 585 | # is coded as "0")
|
---|
| 586 | sub get_end_child {
|
---|
| 587 | my $self = shift (@_);
|
---|
| 588 | my ($section) = @_;
|
---|
| 589 |
|
---|
| 590 | return $section . ".0" unless $section eq "";
|
---|
| 591 | return "0";
|
---|
| 592 | }
|
---|
| 593 |
|
---|
| 594 | # returns the next section in book order
|
---|
| 595 | sub get_next_section {
|
---|
| 596 | my $self = shift (@_);
|
---|
| 597 | my ($section) = @_;
|
---|
| 598 |
|
---|
| 599 | return undef unless defined $section;
|
---|
| 600 |
|
---|
| 601 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 602 | return undef unless defined $section_ptr;
|
---|
| 603 |
|
---|
| 604 | # first try to find first child
|
---|
| 605 | if (defined $section_ptr->{'subsection_order'}->[0]) {
|
---|
| 606 | return $section_ptr->{'subsection_order'}->[0] if ($section eq "");
|
---|
| 607 | return "$section.$section_ptr->{'subsection_order'}->[0]";
|
---|
| 608 | }
|
---|
| 609 |
|
---|
| 610 | do {
|
---|
| 611 | # try to find sibling
|
---|
| 612 | my $next_child = $self->get_next_child ($section);
|
---|
| 613 | return $next_child if (defined $next_child);
|
---|
| 614 |
|
---|
| 615 | # move up one level
|
---|
| 616 | $section = $self->get_parent_section ($section);
|
---|
| 617 | } while $section =~ /\d/;
|
---|
| 618 |
|
---|
| 619 | return undef;
|
---|
| 620 | }
|
---|
| 621 |
|
---|
| 622 | sub is_leaf_section {
|
---|
| 623 | my $self = shift (@_);
|
---|
| 624 | my ($section) = @_;
|
---|
| 625 |
|
---|
| 626 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 627 | return 1 unless defined $section_ptr;
|
---|
| 628 |
|
---|
| 629 | return (scalar (@{$section_ptr->{'subsection_order'}}) == 0);
|
---|
| 630 | }
|
---|
| 631 |
|
---|
| 632 | # methods for dealing with sections
|
---|
| 633 |
|
---|
| 634 | # returns the name of the inserted section
|
---|
| 635 | sub insert_section {
|
---|
| 636 | my $self = shift (@_);
|
---|
| 637 | my ($before_section) = @_;
|
---|
| 638 |
|
---|
| 639 | # get the child to insert before and its parent section
|
---|
| 640 | my $parent_section = "";
|
---|
| 641 | my $before_child = "0";
|
---|
| 642 | my @before_section = split (/\./, $before_section);
|
---|
| 643 | if (scalar(@before_section) > 0) {
|
---|
| 644 | $before_child = pop (@before_section);
|
---|
| 645 | $parent_section = join (".", @before_section);
|
---|
| 646 | }
|
---|
| 647 |
|
---|
| 648 | my $parent_section_ptr = $self->_lookup_section($parent_section);
|
---|
| 649 | if (!defined $parent_section_ptr) {
|
---|
| 650 | print STDERR "doc::insert_section couldn't find parent section " .
|
---|
| 651 | "$parent_section\n";
|
---|
| 652 | return;
|
---|
| 653 | }
|
---|
| 654 |
|
---|
| 655 | # get the next section number
|
---|
| 656 | my $section_num = $parent_section_ptr->{'next_subsection'}++;
|
---|
| 657 |
|
---|
| 658 | my $i = 0;
|
---|
| 659 | while ($i < scalar(@{$parent_section_ptr->{'subsection_order'}}) &&
|
---|
| 660 | $parent_section_ptr->{'subsection_order'}->[$i] ne $before_child) {
|
---|
| 661 | $i++;
|
---|
| 662 | }
|
---|
| 663 |
|
---|
| 664 | # insert the section number into the order list
|
---|
| 665 | splice (@{$parent_section_ptr->{'subsection_order'}}, $i, 0, $section_num);
|
---|
| 666 |
|
---|
| 667 | # add this section to the parent section
|
---|
| 668 | my $section_ptr = {'subsection_order'=>[],
|
---|
| 669 | 'next_subsection'=>1,
|
---|
| 670 | 'subsections'=>{},
|
---|
| 671 | 'metadata'=>[],
|
---|
| 672 | 'text'=>""};
|
---|
| 673 | $parent_section_ptr->{'subsections'}->{$section_num} = $section_ptr;
|
---|
| 674 |
|
---|
| 675 | # work out the full section number
|
---|
| 676 | my $section = $parent_section;
|
---|
| 677 | $section .= "." unless $section eq "";
|
---|
| 678 | $section .= $section_num;
|
---|
| 679 |
|
---|
| 680 | return $section;
|
---|
| 681 | }
|
---|
| 682 |
|
---|
| 683 | # creates a pre-named section
|
---|
| 684 | sub create_named_section {
|
---|
| 685 | my $self = shift (@_);
|
---|
| 686 | my ($mastersection) = @_;
|
---|
| 687 |
|
---|
| 688 | my ($num);
|
---|
| 689 | my $section = $mastersection;
|
---|
| 690 | my $sectionref = $self;
|
---|
| 691 |
|
---|
| 692 | while ($section ne "") {
|
---|
| 693 | ($num, $section) = $section =~ /^\.?(\d+)(.*)$/;
|
---|
| 694 | $num =~ s/^0+(\d)/$1/; # remove leading 0s
|
---|
| 695 | $section = "" unless defined $section;
|
---|
| 696 |
|
---|
| 697 | if (defined $num) {
|
---|
| 698 | if (!defined $sectionref->{'subsections'}->{$num}) {
|
---|
| 699 | push (@{$sectionref->{'subsection_order'}}, $num);
|
---|
| 700 | $sectionref->{'subsections'}->{$num} = {'subsection_order'=>[],
|
---|
| 701 | 'next_subsection'=>1,
|
---|
| 702 | 'subsections'=>{},
|
---|
| 703 | 'metadata'=>[],
|
---|
| 704 | 'text'=>""};
|
---|
| 705 | if ($num >= $sectionref->{'next_subsection'}) {
|
---|
| 706 | $sectionref->{'next_subsection'} = $num + 1;
|
---|
| 707 | }
|
---|
| 708 | }
|
---|
| 709 | $sectionref = $sectionref->{'subsections'}->{$num};
|
---|
| 710 |
|
---|
| 711 | } else {
|
---|
| 712 | print STDERR "doc::create_named_section couldn't create section ";
|
---|
| 713 | print STDERR "$mastersection\n";
|
---|
| 714 | last;
|
---|
| 715 | }
|
---|
| 716 | }
|
---|
| 717 | }
|
---|
| 718 |
|
---|
| 719 | # returns a reference to a list of subsections
|
---|
| 720 | sub list_subsections {
|
---|
| 721 | my $self = shift (@_);
|
---|
| 722 | my ($section) = @_;
|
---|
| 723 |
|
---|
| 724 | my $section_ptr = $self->_lookup_section ($section);
|
---|
| 725 | if (!defined $section_ptr) {
|
---|
| 726 | print STDERR "doc::list_subsections couldn't find section $section\n";
|
---|
| 727 | return [];
|
---|
| 728 | }
|
---|
| 729 |
|
---|
| 730 | return [@{$section_ptr->{'subsection_order'}}];
|
---|
| 731 | }
|
---|
| 732 |
|
---|
| 733 | sub delete_section {
|
---|
| 734 | my $self = shift (@_);
|
---|
| 735 | my ($section) = @_;
|
---|
| 736 |
|
---|
| 737 | # my $section_ptr = {'subsection_order'=>[],
|
---|
| 738 | # 'next_subsection'=>1,
|
---|
| 739 | # 'subsections'=>{},
|
---|
| 740 | # 'metadata'=>[],
|
---|
| 741 | # 'text'=>""};
|
---|
| 742 |
|
---|
| 743 | # if this is the top section reset everything
|
---|
| 744 | if ($section eq "") {
|
---|
| 745 | $self->{'subsection_order'} = [];
|
---|
| 746 | $self->{'subsections'} = {};
|
---|
| 747 | $self->{'metadata'} = [];
|
---|
| 748 | $self->{'text'} = "";
|
---|
| 749 | return;
|
---|
| 750 | }
|
---|
| 751 |
|
---|
| 752 | # find the parent of the section to delete
|
---|
| 753 | my $parent_section = "";
|
---|
| 754 | my $child = "0";
|
---|
| 755 | my @section = split (/\./, $section);
|
---|
| 756 | if (scalar(@section) > 0) {
|
---|
| 757 | $child = pop (@section);
|
---|
| 758 | $parent_section = join (".", @section);
|
---|
| 759 | }
|
---|
| 760 |
|
---|
| 761 | my $parent_section_ptr = $self->_lookup_section($parent_section);
|
---|
| 762 | if (!defined $parent_section_ptr) {
|
---|
| 763 | print STDERR "doc::delete_section couldn't find parent section " .
|
---|
| 764 | "$parent_section\n";
|
---|
| 765 | return;
|
---|
| 766 | }
|
---|
| 767 |
|
---|
| 768 | # remove this section from the subsection_order list
|
---|
| 769 | my $i = 0;
|
---|
| 770 | while ($i < scalar (@{$parent_section_ptr->{'subsection_order'}})) {
|
---|
| 771 | if ($parent_section_ptr->{'subsection_order'}->[$i] eq $child) {
|
---|
| 772 | splice (@{$parent_section_ptr->{'subsection_order'}}, $i, 1);
|
---|
| 773 | last;
|
---|
| 774 | }
|
---|
| 775 | $i++;
|
---|
| 776 | }
|
---|
| 777 |
|
---|
| 778 | # remove this section from the subsection hash
|
---|
| 779 | if (defined ($parent_section_ptr->{'subsections'}->{$child})) {
|
---|
| 780 | undef $parent_section_ptr->{'subsections'}->{$child};
|
---|
| 781 | }
|
---|
| 782 | }
|
---|
| 783 |
|
---|
| 784 | #--
|
---|
[4] | 785 | # methods for dealing with metadata
|
---|
| 786 |
|
---|
| 787 | # set_metadata_element and get_metadata_element are for metadata
|
---|
| 788 | # which should only have one value. add_meta_data and get_metadata
|
---|
| 789 | # are for metadata which can have more than one value.
|
---|
| 790 |
|
---|
[1241] | 791 | # returns the first metadata value which matches field
|
---|
[6111] | 792 |
|
---|
| 793 | # This version of get metadata element works much like the one above,
|
---|
| 794 | # except it allows for the namespace portion of a metadata element to
|
---|
| 795 | # be ignored, thus if you are searching for dc.Title, the first piece
|
---|
| 796 | # of matching metadata ending with the name Title (once any namespace
|
---|
| 797 | # is removed) would be returned.
|
---|
| 798 | # 28-11-2003 John Thompson
|
---|
[1241] | 799 | sub get_metadata_element {
|
---|
| 800 | my $self = shift (@_);
|
---|
[6111] | 801 | my ($section, $field, $ignore_namespace) = @_;
|
---|
[1241] | 802 | my ($data);
|
---|
| 803 |
|
---|
[6111] | 804 | $ignore_namespace = 0 unless defined $ignore_namespace;
|
---|
| 805 |
|
---|
[1241] | 806 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 807 | if (!defined $section_ptr) {
|
---|
[8716] | 808 | print STDERR "doc::get_metadata_element couldn't find section ", $section, "\n";
|
---|
[1241] | 809 | return;
|
---|
| 810 | }
|
---|
| 811 |
|
---|
[24404] | 812 | # Remove any namespace if we are being told to ignore them
|
---|
[6111] | 813 | if($ignore_namespace) {
|
---|
[24404] | 814 | $field =~ s/^.*\.//; #$field =~ s/^\w*\.//;
|
---|
[6111] | 815 | }
|
---|
| 816 |
|
---|
[1241] | 817 | foreach $data (@{$section_ptr->{'metadata'}}) {
|
---|
[6111] | 818 |
|
---|
| 819 | my $data_name = $data->[0];
|
---|
[14966] | 820 |
|
---|
[24404] | 821 | # Remove any namespace if we are being told to ignore them
|
---|
[6111] | 822 | if($ignore_namespace) {
|
---|
[24404] | 823 | $data_name =~ s/^.*\.//; #$data_name =~ s/^\w*\.//;
|
---|
[6111] | 824 | }
|
---|
[24404] | 825 | # we always remove ex. (but not any subsequent namespace) - ex. maybe there in doc_obj, but we will never ask for it.
|
---|
| 826 | $data_name =~ s/^ex\.([^.]+)$/$1/; #$data_name =~ s/^ex\.//;
|
---|
| 827 |
|
---|
[6111] | 828 | return $data->[1] if (scalar(@$data) >= 2 && $data_name eq $field);
|
---|
[1241] | 829 | }
|
---|
| 830 |
|
---|
| 831 | return undef; # was not found
|
---|
| 832 | }
|
---|
| 833 |
|
---|
| 834 | # returns a list of the form [value1, value2, ...]
|
---|
| 835 | sub get_metadata {
|
---|
| 836 | my $self = shift (@_);
|
---|
[6111] | 837 | my ($section, $field, $ignore_namespace) = @_;
|
---|
[1241] | 838 | my ($data);
|
---|
| 839 |
|
---|
[6111] | 840 | $ignore_namespace = 0 unless defined $ignore_namespace;
|
---|
| 841 |
|
---|
[1241] | 842 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 843 | if (!defined $section_ptr) {
|
---|
[8716] | 844 | print STDERR "doc::get_metadata couldn't find section ",
|
---|
| 845 | $section, "\n";
|
---|
[1241] | 846 | return;
|
---|
| 847 | }
|
---|
| 848 |
|
---|
[24404] | 849 | # Remove any namespace if we are being told to ignore them
|
---|
[6111] | 850 | if($ignore_namespace) {
|
---|
[24404] | 851 | $field =~ s/^.*\.//;
|
---|
[6111] | 852 | }
|
---|
| 853 |
|
---|
[1241] | 854 | my @metadata = ();
|
---|
| 855 | foreach $data (@{$section_ptr->{'metadata'}}) {
|
---|
[6111] | 856 |
|
---|
| 857 | my $data_name = $data->[0];
|
---|
[24404] | 858 |
|
---|
| 859 | # Remove any namespace if we are being told to ignore them
|
---|
[6111] | 860 | if($ignore_namespace) {
|
---|
[24404] | 861 | $data_name =~ s/^.*\.//;
|
---|
| 862 | }
|
---|
| 863 | # we always remove ex. (but not any subsequent namespace) - ex. maybe there in doc_obj, but we will never ask for it.
|
---|
| 864 | $data_name =~ s/^ex\.([^.]+)$/$1/;
|
---|
| 865 |
|
---|
[6111] | 866 | push (@metadata, $data->[1]) if ($data_name eq $field);
|
---|
[1241] | 867 | }
|
---|
[9241] | 868 |
|
---|
[1241] | 869 | return \@metadata;
|
---|
| 870 | }
|
---|
| 871 |
|
---|
[23827] | 872 | sub get_metadata_hashmap {
|
---|
| 873 | my $self = shift (@_);
|
---|
| 874 | my ($section, $opt_namespace) = @_;
|
---|
| 875 |
|
---|
| 876 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 877 | if (!defined $section_ptr) {
|
---|
| 878 | print STDERR "doc::get_metadata couldn't find section ",
|
---|
| 879 | $section, "\n";
|
---|
| 880 | return;
|
---|
| 881 | }
|
---|
| 882 |
|
---|
| 883 | my $metadata_hashmap = {};
|
---|
| 884 | foreach my $data (@{$section_ptr->{'metadata'}}) {
|
---|
| 885 | my $metaname = $data->[0];
|
---|
| 886 |
|
---|
| 887 | if ((!defined $opt_namespace) || ($metaname =~ m/^$opt_namespace\./)) {
|
---|
| 888 | if (!defined $metadata_hashmap->{$metaname}) {
|
---|
| 889 | $metadata_hashmap->{$metaname} = [];
|
---|
| 890 | }
|
---|
| 891 | my $metaval_list = $metadata_hashmap->{$metaname};
|
---|
| 892 | push(@$metaval_list, $data->[1]);
|
---|
| 893 | }
|
---|
| 894 | }
|
---|
| 895 |
|
---|
| 896 | return $metadata_hashmap;
|
---|
| 897 | }
|
---|
| 898 |
|
---|
[1241] | 899 | # returns a list of the form [[field,value],[field,value],...]
|
---|
| 900 | sub get_all_metadata {
|
---|
| 901 | my $self = shift (@_);
|
---|
| 902 | my ($section) = @_;
|
---|
| 903 |
|
---|
| 904 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 905 | if (!defined $section_ptr) {
|
---|
[8716] | 906 | print STDERR "doc::get_all_metadata couldn't find section ", $section, "\n";
|
---|
[1241] | 907 | return;
|
---|
| 908 | }
|
---|
| 909 |
|
---|
| 910 | return $section_ptr->{'metadata'};
|
---|
| 911 | }
|
---|
| 912 |
|
---|
| 913 | # $value is optional
|
---|
| 914 | sub delete_metadata {
|
---|
| 915 | my $self = shift (@_);
|
---|
| 916 | my ($section, $field, $value) = @_;
|
---|
| 917 |
|
---|
| 918 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 919 | if (!defined $section_ptr) {
|
---|
[23562] | 920 | print STDERR "doc::delete_metadata couldn't find section ", $section, "$field\n";
|
---|
[1241] | 921 | return;
|
---|
| 922 | }
|
---|
| 923 |
|
---|
| 924 | my $i = 0;
|
---|
| 925 | while ($i < scalar (@{$section_ptr->{'metadata'}})) {
|
---|
| 926 | if (($section_ptr->{'metadata'}->[$i]->[0] eq $field) &&
|
---|
| 927 | (!defined $value || $section_ptr->{'metadata'}->[$i]->[1] eq $value)) {
|
---|
| 928 | splice (@{$section_ptr->{'metadata'}}, $i, 1);
|
---|
| 929 | } else {
|
---|
| 930 | $i++;
|
---|
| 931 | }
|
---|
| 932 | }
|
---|
| 933 | }
|
---|
| 934 |
|
---|
| 935 | sub delete_all_metadata {
|
---|
| 936 | my $self = shift (@_);
|
---|
| 937 | my ($section) = @_;
|
---|
| 938 |
|
---|
| 939 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 940 | if (!defined $section_ptr) {
|
---|
[8716] | 941 | print STDERR "doc::delete_all_metadata couldn't find section ", $section, "\n";
|
---|
[1241] | 942 | return;
|
---|
| 943 | }
|
---|
| 944 |
|
---|
| 945 | $section_ptr->{'metadata'} = [];
|
---|
| 946 | }
|
---|
| 947 |
|
---|
[4] | 948 | sub set_metadata_element {
|
---|
| 949 | my $self = shift (@_);
|
---|
| 950 | my ($section, $field, $value) = @_;
|
---|
| 951 |
|
---|
[97] | 952 | $self->set_utf8_metadata_element ($section, $field,
|
---|
[1870] | 953 | &unicode::ascii2utf8(\$value));
|
---|
[73] | 954 | }
|
---|
| 955 |
|
---|
| 956 | # set_utf8_metadata_element assumes the text has already been
|
---|
| 957 | # converted to the UTF-8 encoding.
|
---|
| 958 | sub set_utf8_metadata_element {
|
---|
| 959 | my $self = shift (@_);
|
---|
| 960 | my ($section, $field, $value) = @_;
|
---|
[25557] | 961 |
|
---|
[4] | 962 | $self->delete_metadata ($section, $field);
|
---|
[73] | 963 | $self->add_utf8_metadata ($section, $field, $value);
|
---|
[4] | 964 | }
|
---|
| 965 |
|
---|
| 966 |
|
---|
[73] | 967 | # add_metadata assumes the text is in (extended) ascii form. For
|
---|
[8220] | 968 | # text which has already been converted to the UTF-8 format use
|
---|
[73] | 969 | # add_utf8_metadata.
|
---|
[4] | 970 | sub add_metadata {
|
---|
| 971 | my $self = shift (@_);
|
---|
| 972 | my ($section, $field, $value) = @_;
|
---|
[25557] | 973 |
|
---|
[97] | 974 | $self->add_utf8_metadata ($section, $field,
|
---|
[1870] | 975 | &unicode::ascii2utf8(\$value));
|
---|
[73] | 976 | }
|
---|
| 977 |
|
---|
| 978 | sub add_utf8_metadata {
|
---|
| 979 | my $self = shift (@_);
|
---|
| 980 | my ($section, $field, $value) = @_;
|
---|
[25557] | 981 |
|
---|
| 982 | # my ($cpackage,$cfilename,$cline,$csubr,$chas_args,$cwantarray) = caller(1);
|
---|
| 983 | # my ($lcfilename) = ($cfilename =~ m/([^\\\/]*)$/);
|
---|
| 984 | # print STDERR "** Calling method: $lcfilename:$cline $cpackage->$csubr\n";
|
---|
[73] | 985 |
|
---|
[4] | 986 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 987 | if (!defined $section_ptr) {
|
---|
[8716] | 988 | print STDERR "doc::add_utf8_metadata couldn't find section ", $section, "\n";
|
---|
[4] | 989 | return;
|
---|
| 990 | }
|
---|
[1732] | 991 | if (!defined $value) {
|
---|
| 992 | print STDERR "doc::add_utf8_metadata undefined value for $field\n";
|
---|
| 993 | return;
|
---|
| 994 | }
|
---|
| 995 | if (!defined $field) {
|
---|
| 996 | print STDERR "doc::add_utf8_metadata undefined metadata type \n";
|
---|
| 997 | return;
|
---|
| 998 | }
|
---|
[4] | 999 |
|
---|
[8894] | 1000 | #print STDERR "###$field=$value\n";
|
---|
[22950] | 1001 |
|
---|
| 1002 | # For now, supress this check. Given that text data read in is now
|
---|
| 1003 | # Unicode aware, then the following block of code can (ironically enough)
|
---|
| 1004 | # cause our unicode compliant string to be re-encoded (leading to
|
---|
| 1005 | # a double-encoded UTF-8 string, which we definitely don't want!).
|
---|
| 1006 |
|
---|
| 1007 |
|
---|
[7798] | 1008 | # double check that the value is utf-8
|
---|
[25557] | 1009 | # if (!&unicode::check_is_utf8($value)) {
|
---|
| 1010 | # print STDERR "doc::add_utf8_metadata - warning: '$field''s value $value wasn't utf8.";
|
---|
| 1011 | # &unicode::ensure_utf8(\$value);
|
---|
| 1012 | # print STDERR " Tried converting to utf8: $value\n";
|
---|
| 1013 | # }
|
---|
[7798] | 1014 |
|
---|
[25557] | 1015 | #If the metadata value is either a latitude or a longitude value then we want to save a shortened version for spacial searching purposes
|
---|
| 1016 | if($field eq "Latitude" || $field eq "Longitude")
|
---|
| 1017 | {
|
---|
| 1018 | my $direction;
|
---|
| 1019 | if($value =~ m/^-/)
|
---|
| 1020 | {
|
---|
| 1021 | $direction = ($field eq "Latitude") ? "S" : "W";
|
---|
| 1022 | }
|
---|
| 1023 | else
|
---|
| 1024 | {
|
---|
| 1025 | $direction = ($field eq "Latitude") ? "N" : "E";
|
---|
| 1026 | }
|
---|
| 1027 |
|
---|
| 1028 | my ($beforeDec, $afterDec) = ($value =~ m/^-?([0-9]+)\.([0-9]+)$/);
|
---|
| 1029 | if(defined $beforeDec && defined $afterDec)
|
---|
| 1030 | {
|
---|
| 1031 | my $name = ($field eq "Latitude") ? "LatShort" : "LngShort";
|
---|
| 1032 | push (@{$section_ptr->{'metadata'}}, [$name, $beforeDec . $direction]);
|
---|
| 1033 |
|
---|
| 1034 | for(my $i = 2; $i <= 4; $i++)
|
---|
| 1035 | {
|
---|
| 1036 | if(length($afterDec) >= $i)
|
---|
| 1037 | {
|
---|
| 1038 | push (@{$section_ptr->{'metadata'}}, [$name, substr($afterDec, 0, $i)]);
|
---|
| 1039 | }
|
---|
| 1040 | }
|
---|
| 1041 |
|
---|
| 1042 | #Only add the metadata if it has not already been added
|
---|
| 1043 | my $metaMap = $self->get_metadata_hashmap($section);
|
---|
| 1044 | }
|
---|
| 1045 | }
|
---|
| 1046 |
|
---|
[4] | 1047 | push (@{$section_ptr->{'metadata'}}, [$field, $value]);
|
---|
| 1048 | }
|
---|
| 1049 |
|
---|
| 1050 |
|
---|
| 1051 | # methods for dealing with text
|
---|
| 1052 |
|
---|
[1241] | 1053 | # returns the text for a section
|
---|
| 1054 | sub get_text {
|
---|
| 1055 | my $self = shift (@_);
|
---|
| 1056 | my ($section) = @_;
|
---|
| 1057 |
|
---|
| 1058 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 1059 | if (!defined $section_ptr) {
|
---|
| 1060 | print STDERR "doc::get_text couldn't find section " .
|
---|
| 1061 | "$section\n";
|
---|
| 1062 | return "";
|
---|
| 1063 | }
|
---|
| 1064 |
|
---|
| 1065 | return $section_ptr->{'text'};
|
---|
| 1066 | }
|
---|
| 1067 |
|
---|
| 1068 | # returns the (utf-8 encoded) length of the text for a section
|
---|
| 1069 | sub get_text_length {
|
---|
| 1070 | my $self = shift (@_);
|
---|
| 1071 | my ($section) = @_;
|
---|
| 1072 |
|
---|
| 1073 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 1074 | if (!defined $section_ptr) {
|
---|
| 1075 | print STDERR "doc::get_text_length couldn't find section " .
|
---|
| 1076 | "$section\n";
|
---|
| 1077 | return 0;
|
---|
| 1078 | }
|
---|
| 1079 |
|
---|
| 1080 | return length ($section_ptr->{'text'});
|
---|
| 1081 | }
|
---|
| 1082 |
|
---|
[23131] | 1083 | # returns the total length for all the sections
|
---|
| 1084 | sub get_total_text_length {
|
---|
| 1085 | my $self = shift (@_);
|
---|
| 1086 |
|
---|
| 1087 | my $section = $self->get_top_section();
|
---|
| 1088 | my $length = 0;
|
---|
| 1089 | while (defined $section) {
|
---|
| 1090 | $length += $self->get_text_length($section);
|
---|
| 1091 | $section = $self->get_next_section($section);
|
---|
| 1092 | }
|
---|
| 1093 | return $length;
|
---|
| 1094 | }
|
---|
| 1095 |
|
---|
[1241] | 1096 | sub delete_text {
|
---|
| 1097 | my $self = shift (@_);
|
---|
| 1098 | my ($section) = @_;
|
---|
| 1099 |
|
---|
| 1100 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 1101 | if (!defined $section_ptr) {
|
---|
| 1102 | print STDERR "doc::delete_text couldn't find section " .
|
---|
| 1103 | "$section\n";
|
---|
| 1104 | return;
|
---|
| 1105 | }
|
---|
| 1106 |
|
---|
| 1107 | $section_ptr->{'text'} = "";
|
---|
| 1108 | }
|
---|
| 1109 |
|
---|
[73] | 1110 | # add_text assumes the text is in (extended) ascii form. For
|
---|
| 1111 | # text which has been already converted to the UTF-8 format
|
---|
| 1112 | # use add_utf8_text.
|
---|
[4] | 1113 | sub add_text {
|
---|
| 1114 | my $self = shift (@_);
|
---|
| 1115 | my ($section, $text) = @_;
|
---|
| 1116 |
|
---|
[73] | 1117 | # convert the text to UTF-8 encoded unicode characters
|
---|
| 1118 | # and add the text
|
---|
[1870] | 1119 | $self->add_utf8_text($section, &unicode::ascii2utf8(\$text));
|
---|
[73] | 1120 | }
|
---|
| 1121 |
|
---|
| 1122 |
|
---|
| 1123 | # add_utf8_text assumes the text to be added has already
|
---|
| 1124 | # been converted to the UTF-8 encoding. For ascii text use
|
---|
| 1125 | # add_text
|
---|
| 1126 | sub add_utf8_text {
|
---|
| 1127 | my $self = shift (@_);
|
---|
| 1128 | my ($section, $text) = @_;
|
---|
| 1129 |
|
---|
[4] | 1130 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 1131 | if (!defined $section_ptr) {
|
---|
[73] | 1132 | print STDERR "doc::add_utf8_text couldn't find section " .
|
---|
[4] | 1133 | "$section\n";
|
---|
| 1134 | return;
|
---|
| 1135 | }
|
---|
| 1136 |
|
---|
| 1137 | $section_ptr->{'text'} .= $text;
|
---|
| 1138 | }
|
---|
| 1139 |
|
---|
[16950] | 1140 | # returns the Source meta, which is the utf8 filename generated.
|
---|
| 1141 | # Added a separate method here for convenience
|
---|
| 1142 | sub get_source {
|
---|
[16924] | 1143 | my $self = shift (@_);
|
---|
[16950] | 1144 | return $self->get_metadata_element ($self->get_top_section(), "Source");
|
---|
| 1145 | }
|
---|
| 1146 |
|
---|
| 1147 | # returns the SourceFile meta, which is the url reference to the URL-encoded
|
---|
| 1148 | # version of Source (the utf8 filename). Added a separate method here for convenience
|
---|
| 1149 | sub get_sourcefile {
|
---|
| 1150 | my $self = shift (@_);
|
---|
| 1151 | return $self->get_metadata_element ($self->get_top_section(), "SourceFile");
|
---|
| 1152 | }
|
---|
| 1153 |
|
---|
| 1154 | # Get the actual name of the assocfile, a url-encoded string derived from SourceFile.
|
---|
| 1155 | # The SourceFile meta is the (escaped) url reference to the url-encoded assocfile.
|
---|
| 1156 | sub get_assocfile_from_sourcefile {
|
---|
| 1157 | my $self = shift (@_);
|
---|
[16924] | 1158 |
|
---|
| 1159 | # get the SourceFile meta, which is a *URL* to a file on the filesystem
|
---|
| 1160 | my $top_section = $self->get_top_section();
|
---|
| 1161 | my $source_file = $self->get_metadata_element($top_section, "SourceFile");
|
---|
[4] | 1162 |
|
---|
[16924] | 1163 | # get the actual filename as it exists on the filesystem which this url refers to
|
---|
[16928] | 1164 | $source_file = &unicode::url_to_filename($source_file);
|
---|
[16924] | 1165 | my ($assocfilename) = $source_file =~ /([^\\\/]+)$/;
|
---|
| 1166 | return $assocfilename;
|
---|
| 1167 | }
|
---|
| 1168 |
|
---|
[1241] | 1169 | # methods for dealing with associated files
|
---|
| 1170 |
|
---|
| 1171 | # a file is associated with a document, NOT a section.
|
---|
| 1172 | # if section is defined it is noted in the data structure
|
---|
| 1173 | # only so that files associated from a particular section
|
---|
| 1174 | # may be removed later (using delete_section_assoc_files)
|
---|
| 1175 | sub associate_file {
|
---|
| 1176 | my $self = shift (@_);
|
---|
| 1177 | my ($real_filename, $assoc_filename, $mime_type, $section) = @_;
|
---|
| 1178 | $mime_type = &ghtml::guess_mime_type ($real_filename) unless defined $mime_type;
|
---|
| 1179 |
|
---|
| 1180 | # remove all associated files with the same name
|
---|
| 1181 | $self->delete_assoc_file ($assoc_filename);
|
---|
[23413] | 1182 |
|
---|
| 1183 | # Too harsh a requirement
|
---|
| 1184 | # Definitely get HTML docs, for example, with some missing
|
---|
| 1185 | # support files
|
---|
| 1186 | # if (!&util::fd_exists($real_filename)) {
|
---|
| 1187 | # print STDERR "****** doc::associate_file(): Failed to find the file $real_filename\n";
|
---|
| 1188 | # exit -1;
|
---|
| 1189 | # }
|
---|
| 1190 |
|
---|
[23387] | 1191 | # print STDERR "**** is the following a UTF8 rep of *real* filename?\n $real_filename\n";
|
---|
| 1192 | # print STDERR "****##### so, ensure it is before storing?!?!?\n";
|
---|
| 1193 | ## my $utf8_filename = Encode::encode("utf8",$filename);
|
---|
| 1194 |
|
---|
[1241] | 1195 | push (@{$self->{'associated_files'}},
|
---|
| 1196 | [$real_filename, $assoc_filename, $mime_type, $section]);
|
---|
| 1197 | }
|
---|
| 1198 |
|
---|
| 1199 | # returns a list of associated files in the form
|
---|
| 1200 | # [[real_filename, assoc_filename, mimetype], ...]
|
---|
| 1201 | sub get_assoc_files {
|
---|
| 1202 | my $self = shift (@_);
|
---|
| 1203 |
|
---|
| 1204 | return $self->{'associated_files'};
|
---|
| 1205 | }
|
---|
| 1206 |
|
---|
[20775] | 1207 | # the following two methods used to keep track of original associated files
|
---|
| 1208 | # for incremental building. eg a txt file used by an item file does not end
|
---|
| 1209 | # up as an assoc file for the doc.xml, but it needs to be recorded as a source
|
---|
| 1210 | # file for incremental build
|
---|
| 1211 | sub associate_source_file {
|
---|
| 1212 | my $self = shift (@_);
|
---|
| 1213 | my ($full_filename) = @_;
|
---|
[19494] | 1214 |
|
---|
[20775] | 1215 | push (@{$self->{'source_assoc_files'}}, $full_filename);
|
---|
| 1216 |
|
---|
| 1217 | }
|
---|
| 1218 |
|
---|
| 1219 | sub get_source_assoc_files {
|
---|
| 1220 | my $self = shift (@_);
|
---|
| 1221 |
|
---|
| 1222 | return $self->{'source_assoc_files'};
|
---|
| 1223 |
|
---|
| 1224 |
|
---|
| 1225 | }
|
---|
[19494] | 1226 | sub metadata_file {
|
---|
| 1227 | my $self = shift (@_);
|
---|
| 1228 | my ($real_filename, $filename) = @_;
|
---|
| 1229 |
|
---|
| 1230 | push (@{$self->{'metadata_files'}},
|
---|
| 1231 | [$real_filename, $filename]);
|
---|
| 1232 | }
|
---|
| 1233 |
|
---|
[21566] | 1234 | # used for writing out the archiveinf-doc info database, to list all the metadata files
|
---|
[19494] | 1235 | sub get_meta_files {
|
---|
| 1236 | my $self = shift (@_);
|
---|
| 1237 |
|
---|
| 1238 | return $self->{'metadata_files'};
|
---|
| 1239 | }
|
---|
| 1240 |
|
---|
[1241] | 1241 | sub delete_section_assoc_files {
|
---|
| 1242 | my $self = shift (@_);
|
---|
| 1243 | my ($section) = @_;
|
---|
| 1244 |
|
---|
| 1245 | my $i=0;
|
---|
| 1246 | while ($i < scalar (@{$self->{'associated_files'}})) {
|
---|
| 1247 | if (defined $self->{'associated_files'}->[$i]->[3] &&
|
---|
| 1248 | $self->{'associated_files'}->[$i]->[3] eq $section) {
|
---|
| 1249 | splice (@{$self->{'associated_files'}}, $i, 1);
|
---|
| 1250 | } else {
|
---|
| 1251 | $i++;
|
---|
| 1252 | }
|
---|
| 1253 | }
|
---|
| 1254 | }
|
---|
| 1255 |
|
---|
| 1256 | sub delete_assoc_file {
|
---|
| 1257 | my $self = shift (@_);
|
---|
| 1258 | my ($assoc_filename) = @_;
|
---|
| 1259 |
|
---|
| 1260 | my $i=0;
|
---|
| 1261 | while ($i < scalar (@{$self->{'associated_files'}})) {
|
---|
| 1262 | if ($self->{'associated_files'}->[$i]->[1] eq $assoc_filename) {
|
---|
| 1263 | splice (@{$self->{'associated_files'}}, $i, 1);
|
---|
| 1264 | } else {
|
---|
| 1265 | $i++;
|
---|
| 1266 | }
|
---|
| 1267 | }
|
---|
| 1268 | }
|
---|
| 1269 |
|
---|
| 1270 | sub reset_nextsection_ptr {
|
---|
| 1271 | my $self = shift (@_);
|
---|
| 1272 | my ($section) = @_;
|
---|
| 1273 |
|
---|
| 1274 | my $section_ptr = $self->_lookup_section($section);
|
---|
| 1275 | $section_ptr->{'next_subsection'} = 1;
|
---|
| 1276 | }
|
---|
| 1277 |
|
---|
[4] | 1278 | 1;
|
---|