| 1 | ###########################################################################
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| 2 | #
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| 3 | # mgppbuildproc.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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| 10 | # This program is free software; you can redistribute it and/or modify
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| 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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| 26 | # This document processor outputs a document
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| 27 | # for mgpp to process
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| 28 |
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| 29 |
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| 30 | package mgppbuildproc;
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| 31 |
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| 32 | eval {require bytes};
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| 33 |
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| 34 | use classify;
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| 35 | use doc;
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| 36 | use docproc;
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| 37 | use util;
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| 38 |
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| 39 |
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| 40 | BEGIN {
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| 41 | @ISA = ('docproc');
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| 42 | }
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| 43 |
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| 44 | #this must be the same as in mgppbuilder
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| 45 | %level_map = ('document'=>'Doc',
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| 46 | 'section'=>'Sec',
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| 47 | 'paragraph'=>'Para');
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| 48 |
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| 49 | sub new {
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| 50 | my ($class, $collection, $source_dir, $build_dir,
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| 51 | $verbosity, $outhandle) = @_;
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| 52 | my $self = new docproc ();
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| 53 |
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| 54 | # outhandle is where all the debugging info goes
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| 55 | # output_handle is where the output of the plugins is piped
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| 56 | # to (i.e. mg, gdbm etc.)
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| 57 | $outhandle = STDERR unless defined $outhandle;
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| 58 |
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| 59 | $self->{'collection'} = $collection;
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| 60 | $self->{'source_dir'} = $source_dir;
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| 61 | $self->{'build_dir'} = $build_dir;
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| 62 | $self->{'verbosity'} = $verbosity;
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| 63 | $self->{'classifiers'} = [];
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| 64 | $self->{'mode'} = "text";
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| 65 | $self->{'assocdir'} = $build_dir;
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| 66 | $self->{'dontgdbm'} = {};
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| 67 | $self->{'index'} = "text";
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| 68 | $self->{'indexexparr'} = [];
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| 69 | $self->{'output_handle'} = "STDOUT";
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| 70 | $self->{'num_docs'} = 0;
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| 71 | $self->{'num_sections'} = 0;
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| 72 | $self->{'num_bytes'} = 0;
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| 73 | $self->{'num_processed_bytes'} = 0;
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| 74 | $self->{'store_text'} = 1;
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| 75 | $self->{'outhandle'} = $outhandle;
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| 76 |
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| 77 | #used by browse interface
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| 78 | $self->{'doclist'} = [];
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| 79 |
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| 80 | $self->{'indexing_text'} = 0;
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| 81 |
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| 82 | #new ones for mgpp
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| 83 | $self->{'dontindex'} = {};
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| 84 | $self->{'indexfieldmap'} = {};
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| 85 | $self->{'indexfields'} = {}; # only put in the ones that are not specified directly in the index
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| 86 | $self->{'strip_html'}=1;
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| 87 |
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| 88 |
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| 89 | return bless $self, $class;
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| 90 | }
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| 91 |
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| 92 | sub reset {
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| 93 | my $self = shift (@_);
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| 94 |
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| 95 | $self->{'num_docs'} = 0;
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| 96 | $self->{'num_sections'} = 0;
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| 97 | $self->{'num_processed_bytes'} = 0;
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| 98 | $self->{'num_bytes'} = 0;
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| 99 | }
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| 100 |
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| 101 | sub get_num_docs {
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| 102 | my $self = shift (@_);
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| 103 |
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| 104 | return $self->{'num_docs'};
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| 105 | }
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| 106 |
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| 107 | sub get_num_sections {
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| 108 | my $self = shift (@_);
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| 109 |
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| 110 | return $self->{'num_sections'};
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| 111 | }
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| 112 |
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| 113 | # num_bytes is the actual number of bytes in the collection
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| 114 | # this is normally the same as what's processed during text compression
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| 115 | sub get_num_bytes {
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| 116 | my $self = shift (@_);
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| 117 |
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| 118 | return $self->{'num_bytes'};
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| 119 | }
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| 120 |
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| 121 | # num_processed_bytes is the number of bytes actually passed
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| 122 | # to mgpp for the current index
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| 123 | sub get_num_processed_bytes {
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| 124 | my $self = shift (@_);
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| 125 |
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| 126 | return $self->{'num_processed_bytes'};
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| 127 | }
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| 128 |
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| 129 | sub set_output_handle {
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| 130 | my $self = shift (@_);
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| 131 | my ($handle) = @_;
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| 132 |
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| 133 | $self->{'output_handle'} = $handle;
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| 134 | }
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| 135 |
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| 136 | sub set_mode {
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| 137 | my $self = shift (@_);
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| 138 | my ($mode) = @_;
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| 139 |
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| 140 | $self->{'mode'} = $mode;
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| 141 | }
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| 142 |
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| 143 | sub set_assocdir {
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| 144 | my $self = shift (@_);
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| 145 | my ($assocdir) = @_;
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| 146 |
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| 147 | $self->{'assocdir'} = $assocdir;
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| 148 | }
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| 149 |
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| 150 | sub set_dontgdbm {
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| 151 | my $self = shift (@_);
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| 152 | my ($dontgdbm) = @_;
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| 153 |
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| 154 | $self->{'dontgdbm'} = $dontgdbm;
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| 155 | }
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| 156 |
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| 157 | sub set_index {
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| 158 | my $self = shift (@_);
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| 159 | my ($index, $indexexparr) = @_;
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| 160 |
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| 161 | $self->{'index'} = $index;
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| 162 | $self->{'indexexparr'} = $indexexparr if defined $indexexparr;
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| 163 | }
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| 164 |
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| 165 | sub get_index {
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| 166 | my $self = shift (@_);
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| 167 |
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| 168 | return $self->{'index'};
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| 169 | }
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| 170 |
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| 171 | sub set_classifiers {
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| 172 | my $self = shift (@_);
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| 173 | my ($classifiers) = @_;
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| 174 |
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| 175 | $self->{'classifiers'} = $classifiers;
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| 176 | }
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| 177 |
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| 178 | sub set_indexing_text {
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| 179 | my $self = shift (@_);
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| 180 | my ($indexing_text) = @_;
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| 181 |
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| 182 | $self->{'indexing_text'} = $indexing_text;
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| 183 | }
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| 184 |
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| 185 | sub get_indexing_text {
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| 186 | my $self = shift (@_);
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| 187 |
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| 188 | return $self->{'indexing_text'};
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| 189 | }
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| 190 |
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| 191 | sub set_store_text {
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| 192 | my $self = shift (@_);
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| 193 | my ($store_text) = @_;
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| 194 |
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| 195 | $self->{'store_text'} = $store_text;
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| 196 | }
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| 197 |
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| 198 | sub get_doc_list {
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| 199 | my $self = shift(@_);
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| 200 |
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| 201 | return @{$self->{'doclist'}};
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| 202 | }
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| 203 |
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| 204 | sub set_indexfieldmap {
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| 205 | my $self = shift (@_);
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| 206 | my ($indexmap) = @_;
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| 207 |
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| 208 | $self->{'indexfieldmap'} = $indexmap;
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| 209 | }
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| 210 |
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| 211 | sub get_indexfieldmap {
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| 212 | my $self = shift (@_);
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| 213 |
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| 214 | return $self->{'indexfieldmap'};
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| 215 | }
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| 216 |
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| 217 | sub set_levels {
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| 218 | my $self = shift (@_);
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| 219 | my ($levels) = @_;
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| 220 |
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| 221 | $self->{'levels'} = $levels;
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| 222 | }
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| 223 |
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| 224 | sub set_strip_html {
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| 225 | my $self = shift (@_);
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| 226 | my ($strip) = @_;
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| 227 | $self->{'strip_html'}=$strip;
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| 228 | }
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| 229 |
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| 230 | sub process {
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| 231 | my $self = shift (@_);
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| 232 | my $method = $self->{'mode'};
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| 233 |
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| 234 | $self->$method(@_);
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| 235 | }
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| 236 |
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| 237 | # use 'Paged' if document has no more than 2 levels
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| 238 | # and each section at second level has a number for
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| 239 | # Title metadata
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| 240 | sub get_document_type {
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| 241 | my $self = shift (@_);
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| 242 | my ($doc_obj) = @_;
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| 243 |
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| 244 | my $thistype = "VList";
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| 245 | my $childtype = "VList";
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| 246 | my $title;
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| 247 | my @tmp = ();
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| 248 |
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| 249 | my $section = $doc_obj->get_top_section ();
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| 250 | my $first = 1;
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| 251 | while (defined $section) {
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| 252 | @tmp = split /\./, $section;
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| 253 | if (scalar(@tmp) > 1) {
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| 254 | return ($thistype, $childtype);
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| 255 | }
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| 256 | if (!$first) {
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| 257 | $title = $doc_obj->get_metadata_element ($section, "Title");
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| 258 | if (!defined $title || $title !~ /^\d+$/) {
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| 259 | return ($thistype, $childtype);
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| 260 | }
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| 261 | }
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| 262 | $first = 0;
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| 263 | $section = $doc_obj->get_next_section($section);
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| 264 | }
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| 265 | if ($doc_obj->get_text_length ($doc_obj->get_top_section())) {
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| 266 | $thistype = "Paged";
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| 267 | } else {
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| 268 | $thistype = "Invisible";
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| 269 | }
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| 270 | $childtype = "Paged";
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| 271 | return ($thistype, $childtype);
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| 272 | }
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| 273 |
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| 274 | sub assoc_files {
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| 275 | my $self = shift (@_);
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| 276 | my ($doc_obj, $archivedir) = @_;
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| 277 | my ($afile);
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| 278 |
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| 279 | foreach my $assoc_file (@{$doc_obj->get_assoc_files()}) {
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| 280 | # if assoc file starts with a slash, we put it relative to the assoc
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| 281 | # dir, otherwise it is relative to the HASH... directory
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| 282 | if ($assoc_file->[1] =~ m@^[/\\]@) {
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| 283 | $afile = &util::filename_cat($self->{'assocdir'},$assoc_file->[1]);
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| 284 | } else {
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| 285 | $afile = &util::filename_cat($self->{'assocdir'}, $archivedir, $assoc_file->[1]);
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| 286 | }
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| 287 | &util::hard_link ($assoc_file->[0], $afile);
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| 288 | }
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| 289 | }
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| 290 |
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| 291 | sub infodb {
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| 292 | my $self = shift (@_);
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| 293 | my ($doc_obj, $filename) = @_;
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| 294 | my $handle = $self->{'output_handle'};
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| 295 |
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| 296 | my $doctype = $doc_obj->get_doc_type();
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| 297 |
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| 298 | # only output this document if it is one to be indexed
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| 299 | return if ($doctype ne "indexed_doc");
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| 300 |
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| 301 | #if a Section level index is not built, the gdbm file should be at doc
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| 302 | #level not Section
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| 303 | my $docs_only = 1;
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| 304 | if ($self->{'levels'}->{'section'}) {
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| 305 | $docs_only = 0;
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| 306 | }
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| 307 |
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| 308 | my ($archivedir) = $filename =~ /^(.*?)(?:\/|\\)[^\/\\]*$/;
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| 309 | $archivedir = "" unless defined $archivedir;
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| 310 | $archivedir =~ s/\\/\//g;
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| 311 | $archivedir =~ s/^\/+//;
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| 312 | $archivedir =~ s/\/+$//;
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| 313 |
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| 314 | $self->assoc_files ($doc_obj, $archivedir);
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| 315 |
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| 316 | # this is another document
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| 317 | $self->{'num_docs'} += 1 unless ($doctype eq "classification");
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| 318 |
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| 319 | # is this a paged or a hierarchical document
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| 320 | my ($thistype, $childtype) = $self->get_document_type ($doc_obj);
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| 321 |
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| 322 | my $section = $doc_obj->get_top_section ();
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| 323 | my $doc_OID = $doc_obj->get_OID();
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| 324 | my $first = 1;
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| 325 | my $url = "";
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| 326 | while (defined $section) {
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| 327 | # update a few statistics
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| 328 | $self->{'num_bytes'} += $doc_obj->get_text_length ($section);
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| 329 | $self->{'num_sections'} += 1 unless ($doctype eq "classification");
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| 330 |
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| 331 | # output the section name
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| 332 | if ($section eq "") { print $handle "[$doc_OID]\n"; }
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| 333 | else { print $handle "[$doc_OID.$section]\n"; }
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| 334 |
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| 335 | # output the fact that this document is a document (unless doctype
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| 336 | # has been set to something else from within a plugin
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| 337 | my $dtype = $doc_obj->get_metadata_element ($section, "doctype");
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| 338 | if (!defined $dtype || $dtype !~ /\w/) {
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| 339 | print $handle "<doctype>doc\n";
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| 340 | }
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| 341 |
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| 342 | # output whether this node contains text
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| 343 | if ($doc_obj->get_text_length($section) > 0) {
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| 344 | print $handle "<hastxt>1\n";
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| 345 | } else {
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| 346 | print $handle "<hastxt>0\n";
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| 347 | }
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| 348 |
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| 349 | # output all the section metadata
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| 350 | my $metadata = $doc_obj->get_all_metadata ($section);
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| 351 | foreach my $pair (@$metadata) {
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| 352 | my ($field, $value) = (@$pair);
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| 353 |
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| 354 | if ($field !~ /^(?:Identifier|Encoding|Language|gsdl)/
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| 355 | && defined $value && $value ne "") {
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| 356 |
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| 357 | # escape problematic stuff
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| 358 | $value =~ s/\\/\\\\/g;
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| 359 | $value =~ s/\n/\\n/g;
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| 360 | $value =~ s/\r/\\r/g;
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| 361 |
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| 362 | # special case for URL metadata
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| 363 | if ($field =~ /^URL$/i) {
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| 364 | $url .= "[$value]\n";
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| 365 | if ($section eq "") {$url .= "<section>$doc_OID\n";}
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| 366 | else {$url .= "<section>$doc_OID.$section\n";}
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| 367 | $url .= '-' x 70 . "\n";
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| 368 | }
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| 369 |
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| 370 | if (!defined $self->{'dontgdbm'}->{$field}) {
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| 371 | print $handle "<$field>$value\n";
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| 372 | }
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| 373 | }
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| 374 | }
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| 375 |
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| 376 | # output archivedir if at top level
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| 377 | if ($section eq $doc_obj->get_top_section()) {
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| 378 | print $handle "<archivedir>$archivedir\n";
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| 379 | }
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| 380 |
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| 381 | # output document display type
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| 382 | if ($first) {
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| 383 | print $handle "<thistype>$thistype\n";
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| 384 | }
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| 385 |
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| 386 | if (!$docs_only) {
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| 387 | # output a list of children
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| 388 | my $children = $doc_obj->get_children ($section);
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| 389 | if (scalar(@$children) > 0) {
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| 390 | print $handle "<childtype>$childtype\n";
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| 391 | print $handle "<contains>";
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| 392 | my $firstchild = 1;
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| 393 | foreach $child (@$children) {
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| 394 | print $handle ";" unless $firstchild;
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| 395 | $firstchild = 0;
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| 396 | if ($child =~ /^.*?\.(\d+)$/) {
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| 397 | print $handle "\".$1";
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| 398 | } else {
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| 399 | print $handle "\".$child";
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| 400 | }
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| 401 | # if ($child eq "") { print $handle "$doc_OID"; }
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| 402 | # elsif ($section eq "") { print $handle "$doc_OID.$child"; }
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| 403 | # else { print $handle "$doc_OID.$section.$child"; }
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| 404 | }
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| 405 | print $handle "\n";
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| 406 | }
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| 407 | #output the matching doc number
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| 408 | print $handle "<docnum>$self->{'num_sections'}\n";
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| 409 |
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| 410 | } # if (!$docs_only)
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| 411 | else { #docs only, doc num is num_docs not num_sections
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| 412 | # output the matching document number
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| 413 | print $handle "<docnum>$self->{'num_docs'}\n";
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| 414 | }
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| 415 |
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| 416 | print $handle '-' x 70, "\n";
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| 417 |
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| 418 |
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| 419 | # output a database entry for the document number
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| 420 | if ($docs_only) {
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| 421 | print $handle "[$self->{'num_docs'}]\n";
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| 422 | print $handle "<section>$doc_OID\n";
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| 423 | }
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| 424 | else {
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| 425 | print $handle "[$self->{'num_sections'}]\n";
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| 426 | if ($section eq "") { print $handle "<section>$doc_OID\n"; }
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| 427 | else { print $handle "<section>$doc_OID.$section\n"; }
|
|---|
| 428 | }
|
|---|
| 429 | print $handle '-' x 70, "\n";
|
|---|
| 430 |
|
|---|
| 431 | # output entry for url
|
|---|
| 432 | if ($url ne "") {
|
|---|
| 433 | print $handle $url;
|
|---|
| 434 | }
|
|---|
| 435 |
|
|---|
| 436 | $first = 0;
|
|---|
| 437 | $section = $doc_obj->get_next_section($section);
|
|---|
| 438 | last if ($docs_only); # if no sections wanted, only gdbm the docs
|
|---|
| 439 | }
|
|---|
| 440 |
|
|---|
| 441 | #add this document to the browse structure
|
|---|
| 442 | push(@{$self->{'doclist'}},$doc_obj->get_OID())
|
|---|
| 443 | unless ($doctype eq "classification");
|
|---|
| 444 |
|
|---|
| 445 | # classify this document
|
|---|
| 446 | &classify::classify_doc ($self->{'classifiers'}, $doc_obj);
|
|---|
| 447 |
|
|---|
| 448 | }
|
|---|
| 449 |
|
|---|
| 450 | #sub find_paragraphs {
|
|---|
| 451 | # $_[1] =~ s/(<p\b)/<Paragraph>$1/gi;
|
|---|
| 452 | #}
|
|---|
| 453 |
|
|---|
| 454 | #this function strips the html tags from the doc if ($strip_html) and
|
|---|
| 455 | # if ($para) replaces <p> with <Paragraph> tags.
|
|---|
| 456 | # if both are false, the original text is returned
|
|---|
| 457 | #assumes that <pre> and </pre> have no spaces, and removes all < and > inside
|
|---|
| 458 | #these tags
|
|---|
| 459 | sub preprocess_text {
|
|---|
| 460 | my $self = shift (@_);
|
|---|
| 461 | my ($text, $strip_html, $para) = @_;
|
|---|
| 462 | my ($outtext) = "";
|
|---|
| 463 | if ($strip_html) {
|
|---|
| 464 | while ($text =~ /<([^>]*)>/ && $text ne "") {
|
|---|
| 465 |
|
|---|
| 466 | $tag = $1;
|
|---|
| 467 | $outtext .= $`." "; #add everything before the matched tag
|
|---|
| 468 | $text = $'; #everything after the matched tag
|
|---|
| 469 | if ($para && $tag =~ /^\s*p\s/i) {
|
|---|
| 470 | $outtext .= $para;
|
|---|
| 471 | }
|
|---|
| 472 | elsif ($tag =~ /^pre$/) { # a pre tag
|
|---|
| 473 | $text =~ /<\/pre>/; # find the closing pre tag
|
|---|
| 474 | my $tmp_text = $`; #everything before the closing pre tag
|
|---|
| 475 | $text = $'; #everything after the </pre>
|
|---|
| 476 | $tmp_text =~ s/[<>]//g; # remove all < and >
|
|---|
| 477 | $outtext.= $tmp_text . " ";
|
|---|
| 478 | }
|
|---|
| 479 | }
|
|---|
| 480 |
|
|---|
| 481 | $outtext .= $text; # add any remaining text
|
|---|
| 482 | return $outtext;
|
|---|
| 483 | } #if strip_html
|
|---|
| 484 |
|
|---|
| 485 | #if ($para) {
|
|---|
| 486 | #$text =~ s/(<p\b)/$para$1/gi;
|
|---|
| 487 | #return $text;
|
|---|
| 488 | # }
|
|---|
| 489 | return $text;
|
|---|
| 490 | }
|
|---|
| 491 |
|
|---|
| 492 |
|
|---|
| 493 |
|
|---|
| 494 | sub filter_text {
|
|---|
| 495 | # $self->filter_text ($field, $new_text);
|
|---|
| 496 | # don't want to do anything for this version, however,
|
|---|
| 497 | # in a particular collection you might want to override
|
|---|
| 498 | # this method to post-process certain fields depending on
|
|---|
| 499 | # the field, or whether we are outputting it for indexing
|
|---|
| 500 | }
|
|---|
| 501 |
|
|---|
| 502 | sub text {
|
|---|
| 503 | my $self = shift (@_);
|
|---|
| 504 | my ($doc_obj) = @_;
|
|---|
| 505 | my $handle = $self->{'output_handle'};
|
|---|
| 506 | my $outhandle = $self->{'outhandle'};
|
|---|
| 507 | my $indexed_doc = 1;
|
|---|
| 508 |
|
|---|
| 509 | # only output this document if it is one to be indexed
|
|---|
| 510 | return if ($doc_obj->get_doc_type() ne "indexed_doc");
|
|---|
| 511 |
|
|---|
| 512 | # see if this document belongs to this subcollection
|
|---|
| 513 | foreach my $indexexp (@{$self->{'indexexparr'}}) {
|
|---|
| 514 | $indexed_doc = 0;
|
|---|
| 515 | my ($field, $exp, $options) = split /\//, $indexexp;
|
|---|
| 516 | if (defined ($field) && defined ($exp)) {
|
|---|
| 517 | my ($bool) = $field =~ /^(.)/;
|
|---|
| 518 | $field =~ s/^.// if $bool eq '!';
|
|---|
| 519 | if ($field =~ /^filename$/i) {
|
|---|
| 520 | $field = $doc_obj->get_source_filename();
|
|---|
| 521 | } else {
|
|---|
| 522 | $field = $doc_obj->get_metadata_element($doc_obj->get_top_section(), $field);
|
|---|
| 523 | }
|
|---|
| 524 | next unless defined $field;
|
|---|
| 525 | if ($bool eq '!') {
|
|---|
| 526 | if ($options =~ /^i$/i) {
|
|---|
| 527 | if ($field !~ /$exp/i) {$indexed_doc = 1; last;}
|
|---|
| 528 | } else {
|
|---|
| 529 | if ($field !~ /$exp/) {$indexed_doc = 1; last;}
|
|---|
| 530 | }
|
|---|
| 531 | } else {
|
|---|
| 532 | if ($options =~ /^i$/i) {
|
|---|
| 533 | if ($field =~ /$exp/i) {$indexed_doc = 1; last;}
|
|---|
| 534 | } else {
|
|---|
| 535 | if ($field =~ /$exp/) {$indexed_doc = 1; last;}
|
|---|
| 536 | }
|
|---|
| 537 | }
|
|---|
| 538 | }
|
|---|
| 539 | }
|
|---|
| 540 |
|
|---|
| 541 | # this is another document
|
|---|
| 542 | $self->{'num_docs'} += 1;
|
|---|
| 543 |
|
|---|
| 544 | # get the parameters for the output
|
|---|
| 545 | # split on : just in case there is subcoll and lang stuff
|
|---|
| 546 | my ($fields) = split (/:/, $self->{'index'});
|
|---|
| 547 |
|
|---|
| 548 | my ($documenttag) = "";
|
|---|
| 549 | my($documentendtag) = "";
|
|---|
| 550 | if ($self->{'levels'}->{'document'}) {
|
|---|
| 551 | $documenttag = "\n<". %level_map->{'document'} . ">\n";
|
|---|
| 552 | $documentendtag = "\n</". %level_map->{'document'} . ">\n";
|
|---|
| 553 | }
|
|---|
| 554 | my ($sectiontag) = "";
|
|---|
| 555 | if ($self->{'levels'}->{'section'}) {
|
|---|
| 556 | $sectiontag = "\n<". %level_map->{'section'} . ">\n";
|
|---|
| 557 | }
|
|---|
| 558 | my ($paratag) = "";
|
|---|
| 559 | if ($self->{'levels'}->{'paragraph'}) {
|
|---|
| 560 | if ($self->{'strip_html'}) {
|
|---|
| 561 | $paratag = "<". %level_map->{'paragraph'} . ">";
|
|---|
| 562 | } else {
|
|---|
| 563 | print $outhandle "Paragraph level can not be used with no_strip_html!. Not indexing Paragraphs.\n";
|
|---|
| 564 | }
|
|---|
| 565 | }
|
|---|
| 566 |
|
|---|
| 567 | my $doc_section = 0; # just for this document
|
|---|
| 568 |
|
|---|
| 569 | my $text = $documenttag;
|
|---|
| 570 |
|
|---|
| 571 | # get the text for this document
|
|---|
| 572 | my $section = $doc_obj->get_top_section();
|
|---|
| 573 | while (defined $section) {
|
|---|
| 574 | # update a few statistics
|
|---|
| 575 | $doc_section++;
|
|---|
| 576 | $self->{'num_sections'} += 1;
|
|---|
| 577 | $text .= "$sectiontag";
|
|---|
| 578 |
|
|---|
| 579 | if ($indexed_doc) {
|
|---|
| 580 | if ($self->{'indexing_text'}) {
|
|---|
| 581 | $text .= "$paratag"; # only add para tags for indexing
|
|---|
| 582 | # note that we assume that metadata will not be asked for for the compressed text, so we add para tags without checking for indexing_text
|
|---|
| 583 | }
|
|---|
| 584 | $self->{'num_bytes'} += $doc_obj->get_text_length ($section);
|
|---|
| 585 | foreach my $field (split (/,/, $fields)) {
|
|---|
| 586 | # only deal with this field if it doesn't start with top or
|
|---|
| 587 | # this is the first section
|
|---|
| 588 | my $real_field = $field;
|
|---|
| 589 | if (!($real_field =~ s/^top//) || ($doc_section == 1)) {
|
|---|
| 590 | my $new_text = "";
|
|---|
| 591 | my $tmp_text = "";
|
|---|
| 592 | if ($real_field eq "text") {
|
|---|
| 593 | if ($self->{'indexing_text'}) { #tag the text with <Text>...</Text>, add the <Paragraph> tags and strip out html if needed
|
|---|
| 594 | $new_text .= "$paratag<TX>\n";
|
|---|
| 595 | $tmp_text .= $doc_obj->get_text ($section);
|
|---|
| 596 | $tmp_text = $self->preprocess_text($tmp_text, $self->{'strip_html'}, "</TX>$paratag<TX>");
|
|---|
| 597 |
|
|---|
| 598 | $new_text .= "$tmp_text</TX>\n";
|
|---|
| 599 | #if (!defined $self->{'indexfields'}->{'TextOnly'}) {
|
|---|
| 600 | #$self->{'indexfields'}->{'TextOnly'} = 1;
|
|---|
| 601 | #}
|
|---|
| 602 | }
|
|---|
| 603 | else { # leave html stuff in, and dont add Paragraph tags - never retrieve paras at the moment
|
|---|
| 604 | $new_text .= $doc_obj->get_text ($section) if $self->{'store_text'};
|
|---|
| 605 | }
|
|---|
| 606 | } else { # metadata field
|
|---|
| 607 | if ($real_field eq "allfields") { #ignore
|
|---|
| 608 | }
|
|---|
| 609 | elsif ($real_field eq "metadata") { # insert all metadata
|
|---|
| 610 | #except gsdl stuff
|
|---|
| 611 | my $shortname = "";
|
|---|
| 612 | my $metadata = $doc_obj->get_all_metadata ($section);
|
|---|
| 613 | foreach $pair (@$metadata) {
|
|---|
| 614 | my ($mfield, $mvalue) = (@$pair);
|
|---|
| 615 | # check fields here, maybe others dont want - change to use dontindex!!
|
|---|
| 616 | if ($mfield !~ /^(?:Identifier|Encoding|Language|gsdl)/
|
|---|
| 617 | && $mfield ne "classifytype"
|
|---|
| 618 | && $mfield ne "assocfilepath"
|
|---|
| 619 | && defined $mvalue && $mvalue ne "") {
|
|---|
| 620 |
|
|---|
| 621 | if (defined $self->{'indexfieldmap'}->{$mfield}) {
|
|---|
| 622 | $shortname = $self->{'indexfieldmap'}->{$mfield};
|
|---|
| 623 | }
|
|---|
| 624 | else {
|
|---|
| 625 | $shortname = $self->create_shortname($mfield);
|
|---|
| 626 | $self->{'indexfieldmap'}->{$mfield} = $shortname;
|
|---|
| 627 | $self->{'indexfieldmap'}->{$shortname} = 1;
|
|---|
| 628 | }
|
|---|
| 629 | $new_text .= "$paratag<$shortname>$mvalue</$shortname>\n";
|
|---|
| 630 | if (!defined $self->{'indexfields'}->{$mfield}) {
|
|---|
| 631 | $self->{'indexfields'}->{$mfield} = 1;
|
|---|
| 632 | }
|
|---|
| 633 | }
|
|---|
| 634 | }
|
|---|
| 635 |
|
|---|
| 636 | }
|
|---|
| 637 | else { #individual metadata specified
|
|---|
| 638 | my $shortname="";
|
|---|
| 639 | #if (!defined $self->{'indexfields'}->{$real_field}) {
|
|---|
| 640 | #$self->{'indexfields'}->{$real_field} = 1;
|
|---|
| 641 | #}
|
|---|
| 642 | if (defined $self->{'indexfieldmap'}->{$real_field}) {
|
|---|
| 643 | $shortname = $self->{'indexfieldmap'}->{$real_field};
|
|---|
| 644 | }
|
|---|
| 645 | else {
|
|---|
| 646 | $shortname = $self->create_shortname($real_field);
|
|---|
| 647 | $self->{'indexfieldmap'}->{$real_field} = $shortname;
|
|---|
| 648 | $self->{'indexfieldmap'}->{$shortname} = 1;
|
|---|
| 649 | }
|
|---|
| 650 | foreach $item (@{$doc_obj->get_metadata ($section, $real_field)}) {
|
|---|
| 651 | $new_text .= "$paratag<$shortname>$item</$shortname>\n";
|
|---|
| 652 | }
|
|---|
| 653 | }
|
|---|
| 654 |
|
|---|
| 655 | }
|
|---|
| 656 |
|
|---|
| 657 | # filter the text
|
|---|
| 658 | $self->filter_text ($field, $new_text);
|
|---|
| 659 |
|
|---|
| 660 | $self->{'num_processed_bytes'} += length ($new_text);
|
|---|
| 661 | $text .= "$new_text";
|
|---|
| 662 | }
|
|---|
| 663 | }
|
|---|
| 664 | } # if (indexed_doc)
|
|---|
| 665 |
|
|---|
| 666 | $section = $doc_obj->get_next_section($section);
|
|---|
| 667 | } #while defined section
|
|---|
| 668 | print $handle "$text\n$documentendtag";
|
|---|
| 669 |
|
|---|
| 670 | }
|
|---|
| 671 |
|
|---|
| 672 | #chooses the first two letters or digits for the shortname
|
|---|
| 673 | #now ignores non-letdig characters
|
|---|
| 674 | sub create_shortname {
|
|---|
| 675 | $self = shift(@_);
|
|---|
| 676 |
|
|---|
| 677 | my ($realname) = @_;
|
|---|
| 678 | #take the first two chars
|
|---|
| 679 | my $shortname;
|
|---|
| 680 | if ($realname =~ /^[^\w]*(\w)[^\w]*(\w)/) {
|
|---|
| 681 | $shortname = "$1$2";
|
|---|
| 682 | } else {
|
|---|
| 683 | # there aren't two letdig's in the field - try arbitrary combinations
|
|---|
| 684 | $realname = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
|
|---|
| 685 | $shortname = "AB";
|
|---|
| 686 | }
|
|---|
| 687 | $shortname =~ tr/a-z/A-Z/;
|
|---|
| 688 |
|
|---|
| 689 | #if already used, take the first and third letdigs and so on
|
|---|
| 690 | $count = 1;
|
|---|
| 691 | while (defined $self->{'indexfieldmap'}->{$shortname}) {
|
|---|
| 692 | if ($realname =~ /^[^\w]*(\w)([^\w]*\w){$count}[^\w]*(\w)/) {
|
|---|
| 693 | $shortname = "$1$3";
|
|---|
| 694 | $count++;
|
|---|
| 695 | $shortname =~ tr/a-z/A-Z/;
|
|---|
| 696 |
|
|---|
| 697 | }
|
|---|
| 698 | else {
|
|---|
| 699 | #remove up to and incl the first letdig
|
|---|
| 700 | $realname =~ s/^[^\w]*\w//;
|
|---|
| 701 | $count = 0;
|
|---|
| 702 | }
|
|---|
| 703 | }
|
|---|
| 704 |
|
|---|
| 705 | return $shortname;
|
|---|
| 706 | }
|
|---|
| 707 |
|
|---|
| 708 | 1;
|
|---|
| 709 |
|
|---|
