[537] | 1 | ###########################################################################
|
---|
| 2 | #
|
---|
| 3 | # classify.pm --
|
---|
| 4 | # A component of the Greenstone digital library software
|
---|
| 5 | # from the New Zealand Digital Library Project at the
|
---|
| 6 | # University of Waikato, New Zealand.
|
---|
| 7 | #
|
---|
| 8 | # Copyright (C) 1999 New Zealand Digital Library Project
|
---|
| 9 | #
|
---|
| 10 | # This program is free software; you can redistribute it and/or modify
|
---|
| 11 | # it under the terms of the GNU General Public License as published by
|
---|
| 12 | # the Free Software Foundation; either version 2 of the License, or
|
---|
| 13 | # (at your option) any later version.
|
---|
| 14 | #
|
---|
| 15 | # This program is distributed in the hope that it will be useful,
|
---|
| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
| 18 | # GNU General Public License for more details.
|
---|
| 19 | #
|
---|
| 20 | # You should have received a copy of the GNU General Public License
|
---|
| 21 | # along with this program; if not, write to the Free Software
|
---|
| 22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
| 23 | #
|
---|
| 24 | ###########################################################################
|
---|
| 25 |
|
---|
[214] | 26 | # functions to handle classifiers
|
---|
| 27 |
|
---|
| 28 | package classify;
|
---|
| 29 |
|
---|
| 30 | require util;
|
---|
[8220] | 31 | require AllList;
|
---|
[15703] | 32 |
|
---|
[15705] | 33 | use dbutil;
|
---|
[5682] | 34 | use gsprintf;
|
---|
[15703] | 35 | use strict; no strict 'subs';
|
---|
[214] | 36 |
|
---|
[11994] | 37 |
|
---|
[5682] | 38 | sub gsprintf
|
---|
| 39 | {
|
---|
| 40 | return &gsprintf::gsprintf(@_);
|
---|
| 41 | }
|
---|
| 42 |
|
---|
| 43 |
|
---|
[6967] | 44 | sub load_classifier_for_info {
|
---|
| 45 | my ($classifier) = shift @_;
|
---|
[214] | 46 |
|
---|
[6967] | 47 | # find the classifier
|
---|
[14239] | 48 | my $customclassname;
|
---|
| 49 | if (defined($ENV{'GSDLCOLLECTION'}))
|
---|
| 50 | {
|
---|
| 51 | $customclassname = &util::filename_cat($ENV{'GSDLCOLLECTDIR'}, "custom", $ENV{'GSDLCOLLECTION'},
|
---|
[14112] | 52 | "perllib", "classify", "${classifier}.pm");
|
---|
[14239] | 53 | }
|
---|
[14112] | 54 | my $colclassname = &util::filename_cat($ENV{'GSDLCOLLECTDIR'}, "perllib", "classify", "${classifier}.pm");
|
---|
| 55 | my $mainclassname = &util::filename_cat($ENV{'GSDLHOME'}, "perllib", "classify", "${classifier}.pm");
|
---|
[6967] | 56 |
|
---|
[14239] | 57 | if (defined($customclassname) && -e $customclassname) { require $customclassname; }
|
---|
[14112] | 58 | elsif (-e $colclassname) { require $colclassname; }
|
---|
[6967] | 59 | elsif (-e $mainclassname) { require $mainclassname; }
|
---|
| 60 | else {
|
---|
| 61 | &gsprintf(STDERR, "{classify.could_not_find_classifier}\n", $classifier) && die "\n";
|
---|
| 62 | }
|
---|
| 63 | my ($classobj);
|
---|
| 64 | my $options = "-gsdlinfo";
|
---|
[10218] | 65 | eval ("\$classobj = new \$classifier([],[$options])");
|
---|
[6967] | 66 | die "$@" if $@;
|
---|
| 67 |
|
---|
| 68 | return $classobj;
|
---|
| 69 | }
|
---|
| 70 |
|
---|
[811] | 71 | sub load_classifiers {
|
---|
[1839] | 72 | my ($classify_list, $build_dir, $outhandle) = @_;
|
---|
[811] | 73 | my @classify_objects = ();
|
---|
[8220] | 74 | my $classify_number = 1;
|
---|
[13933] | 75 |
|
---|
| 76 | my $colclassdir = &util::filename_cat($ENV{'GSDLCOLLECTDIR'},"perllib/classify");
|
---|
| 77 | unshift (@INC, $colclassdir);
|
---|
[811] | 78 |
|
---|
[15703] | 79 | foreach my $classifyoption (@$classify_list) {
|
---|
[214] | 80 |
|
---|
[811] | 81 | # get the classifier name
|
---|
| 82 | my $classname = shift @$classifyoption;
|
---|
| 83 | next unless defined $classname;
|
---|
[1839] | 84 |
|
---|
[811] | 85 | # find the classifier
|
---|
[14112] | 86 | my $customclassname = &util::filename_cat($ENV{'GSDLCOLLECTDIR'}, "custom", $ENV{'GSDLCOLLECTION'},
|
---|
| 87 | "perllib", "classify", "${classname}.pm");
|
---|
| 88 | my $colclassname = &util::filename_cat($ENV{'GSDLCOLLECTDIR'}, "perllib", "classify", "${classname}.pm");
|
---|
| 89 | my $mainclassname = &util::filename_cat($ENV{'GSDLHOME'}, "perllib", "classify", "${classname}.pm");
|
---|
[214] | 90 |
|
---|
[14112] | 91 | if (-e $customclassname) { require $customclassname; }
|
---|
| 92 | elsif (-e $colclassname) { require $colclassname; }
|
---|
[811] | 93 | elsif (-e $mainclassname) { require $mainclassname; }
|
---|
[5682] | 94 | else { &gsprintf(STDERR, "{classify.could_not_find_classifier}\n", $classname) && die "\n";
|
---|
| 95 | # die "ERROR - couldn't find classifier \"$classname\"\n";
|
---|
[14112] | 96 | }
|
---|
[214] | 97 |
|
---|
[811] | 98 | # create the classify object
|
---|
| 99 | my ($classobj);
|
---|
[1839] | 100 |
|
---|
| 101 | my @newoptions;
|
---|
[6964] | 102 |
|
---|
| 103 | # do these first so they can be overriden by user supplied options
|
---|
| 104 | push @newoptions, "-builddir", "$build_dir" if ($build_dir);
|
---|
| 105 | push @newoptions, "-outhandle", "$outhandle" if ($outhandle);
|
---|
| 106 | push @newoptions, "-verbosity", "2";
|
---|
| 107 |
|
---|
[6967] | 108 | # backwards compatability hack: if the classifier options are
|
---|
| 109 | # in "x=y" format, convert them to parsearg ("-x y") format.
|
---|
| 110 | my ($opt, $key, $value);
|
---|
[1839] | 111 | foreach $opt (@$classifyoption) {
|
---|
[11644] | 112 | # if ($opt =~ /^(\w+)=(.*)$/) {
|
---|
| 113 | # push @newoptions, "-$1", $2;
|
---|
| 114 | # } else {
|
---|
[1839] | 115 | push @newoptions, $opt;
|
---|
[11644] | 116 | #}
|
---|
[1839] | 117 | }
|
---|
| 118 |
|
---|
| 119 | map { $_ = "\"$_\""; } @newoptions;
|
---|
| 120 | my $options .= join (",", @newoptions);
|
---|
| 121 |
|
---|
[10218] | 122 |
|
---|
| 123 | eval ("\$classobj = new \$classname([],[$options])");
|
---|
[811] | 124 | die "$@" if $@;
|
---|
[1839] | 125 |
|
---|
[8220] | 126 | $classobj->set_number($classify_number);
|
---|
| 127 | $classify_number ++;
|
---|
| 128 |
|
---|
[1839] | 129 | # add this object to the list
|
---|
[811] | 130 | push (@classify_objects, $classobj);
|
---|
| 131 | }
|
---|
| 132 |
|
---|
[8220] | 133 | my ($classobj);
|
---|
| 134 | eval ("\$classobj = new AllList()");
|
---|
| 135 | die "$@" if $@;
|
---|
| 136 | push (@classify_objects, $classobj);
|
---|
| 137 |
|
---|
[811] | 138 | return \@classify_objects;
|
---|
[214] | 139 | }
|
---|
| 140 |
|
---|
| 141 | # init_classifiers resets all the classifiers and readys them to process
|
---|
[315] | 142 | # the documents.
|
---|
[214] | 143 | sub init_classifiers {
|
---|
| 144 | my ($classifiers) = @_;
|
---|
| 145 |
|
---|
[15703] | 146 | foreach my $classobj (@$classifiers) {
|
---|
[214] | 147 | $classobj->init();
|
---|
| 148 | }
|
---|
| 149 | }
|
---|
| 150 |
|
---|
[11994] | 151 |
|
---|
| 152 |
|
---|
[15704] | 153 | # takes a hashref containing the metadata for an infodb entry, and extracts
|
---|
[11994] | 154 | # the childrens numbers (from the 'contains' entry).
|
---|
| 155 | # assumes format is ".1;".2;".3
|
---|
| 156 | sub get_children {
|
---|
| 157 | my ($doc_db_hash) = @_;
|
---|
| 158 |
|
---|
| 159 | my $children = undef;
|
---|
| 160 |
|
---|
[15703] | 161 | my $contains = $doc_db_hash->{'contains'};
|
---|
| 162 | if (defined ($contains)) {
|
---|
| 163 | $contains =~ s/\@$//; #remove trailing @
|
---|
| 164 | $contains =~ s/^\"\.//; #remove initial ".
|
---|
| 165 | @$children = split /\;\"\./, $contains;
|
---|
[11994] | 166 | }
|
---|
| 167 |
|
---|
| 168 | return $children;
|
---|
| 169 | }
|
---|
| 170 |
|
---|
| 171 |
|
---|
| 172 | sub recurse_sections {
|
---|
[15704] | 173 | my ($doc_obj, $children, $parentoid, $parentsection, $database_recs) = @_;
|
---|
[11994] | 174 |
|
---|
| 175 | return if (!defined $children);
|
---|
| 176 |
|
---|
| 177 | foreach my $child (sort { $a <=> $b} @$children) {
|
---|
| 178 | $doc_obj->create_named_section("$parentsection.$child");
|
---|
[15704] | 179 | my $doc_db_rec = $database_recs->{"$parentoid.$child"};
|
---|
[11994] | 180 | my $doc_db_hash = db_rec_to_hash($doc_db_rec);
|
---|
| 181 |
|
---|
| 182 | # get child's children
|
---|
| 183 | my $newchildren = &get_children($doc_db_hash);
|
---|
| 184 |
|
---|
| 185 | # add content for current section
|
---|
| 186 | add_section_content($doc_obj, "$parentsection.$child", $doc_db_hash);
|
---|
| 187 |
|
---|
| 188 | # process all the children if there are any
|
---|
| 189 | if (defined ($newchildren))
|
---|
| 190 | {
|
---|
| 191 | recurse_sections($doc_obj, $newchildren, "$parentoid.$child",
|
---|
[15704] | 192 | "$parentsection.$child", $database_recs);
|
---|
[11994] | 193 | }
|
---|
| 194 | }
|
---|
| 195 | }
|
---|
| 196 |
|
---|
| 197 |
|
---|
| 198 | sub add_section_content {
|
---|
| 199 | my ($doc_obj, $cursection, $doc_db_hash) = @_;
|
---|
| 200 |
|
---|
[15703] | 201 | foreach my $key (keys %$doc_db_hash) {
|
---|
[11994] | 202 | #don't need to store these metadata
|
---|
| 203 | next if $key =~ /(thistype|childtype|contains|docnum|doctype|classifytype)/i;
|
---|
| 204 | # but do want things like hastxt and archivedir
|
---|
| 205 | my @items = split /@/, $doc_db_hash->{$key};
|
---|
[17288] | 206 | # metadata is all from gdbm so should already be in utf8
|
---|
| 207 | map {$doc_obj->add_utf8_metadata ($cursection, $key, $_); } @items;
|
---|
[11994] | 208 |
|
---|
| 209 | }
|
---|
| 210 | }
|
---|
| 211 |
|
---|
| 212 |
|
---|
[15704] | 213 | # gets all the metadata from an infodb entry, and puts it into a hashref
|
---|
[11994] | 214 | sub db_rec_to_hash {
|
---|
| 215 |
|
---|
| 216 | my ($gdb_str_ref) = @_;
|
---|
| 217 |
|
---|
| 218 | my $hashref = {};
|
---|
| 219 |
|
---|
| 220 | my @entries = split(/\n/, $gdb_str_ref);
|
---|
[15703] | 221 | foreach my $entry (@entries) {
|
---|
[11994] | 222 | my($key, $value) = ($entry =~ /^<([^>]*)>(.*?)$/ );
|
---|
| 223 | $hashref->{$key} .= '@' if defined $hashref->{$key};
|
---|
| 224 | $hashref->{$key} .= $value;
|
---|
| 225 |
|
---|
| 226 | }
|
---|
| 227 |
|
---|
| 228 | return $hashref;
|
---|
| 229 | }
|
---|
| 230 |
|
---|
| 231 |
|
---|
| 232 | sub reconstruct_doc_objs_metadata
|
---|
| 233 | {
|
---|
[15725] | 234 | my $infodb_type = shift(@_);
|
---|
| 235 | my $infodb_file_path = shift(@_);
|
---|
[11994] | 236 |
|
---|
[15704] | 237 | my %database_recs;
|
---|
[15725] | 238 | &dbutil::read_infodb_file($infodb_type, $infodb_file_path, \%database_recs);
|
---|
[11994] | 239 |
|
---|
| 240 | # dig out top level doc sections
|
---|
| 241 | my %top_sections = ();
|
---|
[13068] | 242 | my %top_docnums = ();
|
---|
[15704] | 243 | foreach my $key ( keys %database_recs )
|
---|
[11994] | 244 | {
|
---|
[15704] | 245 | my $md_rec = $database_recs{$key};
|
---|
[11994] | 246 | my $md_hash = db_rec_to_hash($md_rec);
|
---|
| 247 |
|
---|
| 248 | if ((defined $md_hash->{'doctype'}) && ($md_hash->{'doctype'} eq "doc")) {
|
---|
| 249 | next if ($key =~ m/\./);
|
---|
| 250 | $top_sections{$key} = $md_hash;
|
---|
[13068] | 251 | $top_docnums{$key} = $md_hash->{'docnum'};
|
---|
[11994] | 252 | }
|
---|
| 253 | }
|
---|
| 254 |
|
---|
[15704] | 255 | # for greenstone document objects based on metadata in database file
|
---|
[11994] | 256 | my @all_docs = ();
|
---|
[13068] | 257 | # we need to make sure the documents were processed in the same order as
|
---|
| 258 | # before, so sort based on their docnums
|
---|
| 259 | foreach my $oid ( sort { $top_docnums{$a} <=> $top_docnums{$b} } keys %top_sections )
|
---|
[11994] | 260 | {
|
---|
| 261 | my $doc_db_hash = $top_sections{$oid};
|
---|
| 262 |
|
---|
| 263 | my $doc_obj = new doc();
|
---|
| 264 | $doc_obj->set_OID($oid);
|
---|
| 265 | my $top = $doc_obj->get_top_section();
|
---|
| 266 | add_section_content ($doc_obj, $top, $doc_db_hash);
|
---|
| 267 | my $children = &get_children($doc_db_hash);
|
---|
[15704] | 268 | recurse_sections($doc_obj, $children, $oid, $top, \%database_recs);
|
---|
[11994] | 269 |
|
---|
| 270 | push(@all_docs,$doc_obj);
|
---|
| 271 | }
|
---|
| 272 |
|
---|
| 273 | return \@all_docs;
|
---|
| 274 | }
|
---|
| 275 |
|
---|
| 276 |
|
---|
| 277 |
|
---|
| 278 |
|
---|
| 279 |
|
---|
[214] | 280 | # classify_doc lets each of the classifiers classify a document
|
---|
| 281 | sub classify_doc {
|
---|
[18455] | 282 | my ($classifiers, $doc_obj, $edit_mode) = @_;
|
---|
[19772] | 283 |
|
---|
[15703] | 284 | foreach my $classobj (@$classifiers) {
|
---|
[8220] | 285 | my $title = $classobj->{'title'};
|
---|
[19772] | 286 |
|
---|
[18455] | 287 | $classobj->classify($doc_obj,$edit_mode);
|
---|
[214] | 288 | }
|
---|
| 289 | }
|
---|
| 290 |
|
---|
[15702] | 291 |
|
---|
[18520] | 292 | our $next_classify_num = 1;
|
---|
| 293 |
|
---|
[214] | 294 | # output_classify_info outputs all the info needed for the classification
|
---|
[15702] | 295 | # to the database
|
---|
| 296 | sub output_classify_info
|
---|
| 297 | {
|
---|
[15725] | 298 | my ($classifiers, $infodb_type, $infodb_handle, $remove_empty_classifications, $gli) = @_;
|
---|
[214] | 299 |
|
---|
[6332] | 300 | $gli = 0 unless defined $gli;
|
---|
| 301 |
|
---|
[315] | 302 | # create a classification containing all the info
|
---|
[15702] | 303 | my $classifyinfo = { 'classifyOID'=> 'browse',
|
---|
| 304 | 'contains' => [] };
|
---|
[315] | 305 |
|
---|
| 306 | # get each of the classifications
|
---|
[15703] | 307 | foreach my $classifier (@$classifiers)
|
---|
[15702] | 308 | {
|
---|
| 309 | my $classifier_info = $classifier->get_classify_info($gli);
|
---|
| 310 | $classifier_info->{'classifyOID'} = "CL$next_classify_num" unless defined($classifier_info->{'classifyOID'});
|
---|
| 311 | print STDERR "*** outputting information for classifier: $classifier_info->{'classifyOID'}\n";
|
---|
[8220] | 312 |
|
---|
[15702] | 313 | push(@{$classifyinfo->{'contains'}}, $classifier_info);
|
---|
[315] | 314 | $next_classify_num++;
|
---|
[214] | 315 | }
|
---|
| 316 |
|
---|
[15725] | 317 | &print_classify_info($infodb_type, $infodb_handle, $classifyinfo, "", $remove_empty_classifications);
|
---|
[214] | 318 | }
|
---|
| 319 |
|
---|
[831] | 320 |
|
---|
[15702] | 321 | sub print_classify_info
|
---|
| 322 | {
|
---|
[15725] | 323 | my ($infodb_type, $infodb_handle, $classifyinfo, $OID, $remove_empty_classifications) = @_;
|
---|
[15702] | 324 |
|
---|
[315] | 325 | $OID =~ s/^\.+//; # just for good luck
|
---|
[214] | 326 |
|
---|
[315] | 327 | # book information is printed elsewhere
|
---|
| 328 | return if (defined ($classifyinfo->{'OID'}));
|
---|
| 329 |
|
---|
| 330 | # don't want empty classifications
|
---|
[8445] | 331 | return if (&check_contents ($classifyinfo, $remove_empty_classifications) == 0 && $remove_empty_classifications);
|
---|
[315] | 332 |
|
---|
[8361] | 333 | $OID = $classifyinfo->{'classifyOID'} if defined ($classifyinfo->{'classifyOID'});
|
---|
[15702] | 334 |
|
---|
| 335 | my %classify_infodb = ();
|
---|
| 336 | $classify_infodb{"doctype"} = [ "classify" ];
|
---|
| 337 | $classify_infodb{"hastxt"} = [ "0" ];
|
---|
| 338 | $classify_infodb{"childtype"} = [ $classifyinfo->{'childtype'} ]
|
---|
[8361] | 339 | if defined $classifyinfo->{'childtype'};
|
---|
[15702] | 340 | $classify_infodb{"Title"} = [ $classifyinfo->{'Title'} ]
|
---|
[8361] | 341 | if defined $classifyinfo->{'Title'};
|
---|
[15702] | 342 | $classify_infodb{"numleafdocs"} = [ $classifyinfo->{'numleafdocs'} ]
|
---|
[8361] | 343 | if defined $classifyinfo->{'numleafdocs'};
|
---|
[15702] | 344 | $classify_infodb{"thistype"} = [ $classifyinfo->{'thistype'} ]
|
---|
[8361] | 345 | if defined $classifyinfo->{'thistype'};
|
---|
[15702] | 346 | $classify_infodb{"parameters"} = [ $classifyinfo->{'parameters'} ]
|
---|
[8361] | 347 | if defined $classifyinfo->{'parameters'};
|
---|
[15702] | 348 | $classify_infodb{"supportsmemberof"} = [ $classifyinfo->{'supportsmemberof'} ]
|
---|
[8361] | 349 | if defined $classifyinfo->{'supportsmemberof'};
|
---|
| 350 |
|
---|
[15702] | 351 | my $contains_text = "";
|
---|
| 352 | my $mdoffset_text = "";
|
---|
[8361] | 353 |
|
---|
| 354 | my $next_subOID = 1;
|
---|
| 355 | my $first = 1;
|
---|
[15702] | 356 | foreach my $tempinfo (@{$classifyinfo->{'contains'}}) {
|
---|
[8361] | 357 | # empty contents were made undefined by clean_contents()
|
---|
| 358 | next unless defined $tempinfo;
|
---|
[315] | 359 |
|
---|
[8361] | 360 | if (!defined ($tempinfo->{'classifyOID'}) ||
|
---|
| 361 | $tempinfo->{'classifyOID'} ne "oai") {
|
---|
| 362 | $contains_text .= ";" unless $first;
|
---|
| 363 | }
|
---|
| 364 | $mdoffset_text .= ";" unless $first;
|
---|
| 365 | $first = 0;
|
---|
[315] | 366 |
|
---|
[16959] | 367 | if (defined ($tempinfo->{'classifyOID'}))
|
---|
| 368 | {
|
---|
| 369 | if ($tempinfo->{'classifyOID'} ne "oai")
|
---|
| 370 | {
|
---|
[8361] | 371 | $contains_text .= $tempinfo->{'classifyOID'};
|
---|
[8275] | 372 | }
|
---|
[12844] | 373 |
|
---|
[15725] | 374 | &print_classify_info ($infodb_type, $infodb_handle, $tempinfo, $tempinfo->{'classifyOID'},
|
---|
[8361] | 375 | $remove_empty_classifications);
|
---|
[16959] | 376 | }
|
---|
| 377 | elsif (defined ($tempinfo->{'OID'}))
|
---|
| 378 | {
|
---|
[8361] | 379 | $contains_text .= $tempinfo->{'OID'};
|
---|
[12844] | 380 | $mdoffset_text .= $tempinfo->{'offset'} if (defined ($tempinfo->{'offset'}));
|
---|
[16959] | 381 | }
|
---|
| 382 | else
|
---|
| 383 | {
|
---|
| 384 | # Supress having top-level node in Collage classifier
|
---|
| 385 | # so no bookshelf icon appears, top-level, along with the
|
---|
| 386 | # applet
|
---|
| 387 | if (!defined ($tempinfo->{'Title'}) || $tempinfo->{'Title'} ne "Collage")
|
---|
| 388 | {
|
---|
| 389 | $contains_text .= "\".$next_subOID";
|
---|
| 390 | }
|
---|
[12844] | 391 |
|
---|
[16959] | 392 | &print_classify_info ($infodb_type, $infodb_handle, $tempinfo, "$OID.$next_subOID",
|
---|
| 393 | $remove_empty_classifications);
|
---|
| 394 | $next_subOID++;
|
---|
| 395 | }
|
---|
[315] | 396 | }
|
---|
[8361] | 397 |
|
---|
[15702] | 398 | $classify_infodb{"contains"} = [ $contains_text ];
|
---|
| 399 | $classify_infodb{"mdtype"} = [ $classifyinfo->{'mdtype'} ]
|
---|
[8361] | 400 | if defined $classifyinfo->{'mdtype'};
|
---|
[15702] | 401 | $classify_infodb{"mdoffset"} = [ $mdoffset_text ]
|
---|
| 402 | if ($mdoffset_text !~ m/^;+$/);
|
---|
[8361] | 403 |
|
---|
[15725] | 404 | &dbutil::write_infodb_entry($infodb_type, $infodb_handle, $OID, \%classify_infodb);
|
---|
[315] | 405 | }
|
---|
| 406 |
|
---|
[15702] | 407 |
|
---|
[637] | 408 | sub check_contents {
|
---|
[8445] | 409 | my ($classifyinfo,$remove_empty_classifications) = @_;
|
---|
| 410 | $remove_empty_classifications = 0 unless ($remove_empty_classifications);
|
---|
[637] | 411 | my $num_leaf_docs = 0;
|
---|
| 412 | my $sub_num_leaf_docs = 0;
|
---|
[315] | 413 |
|
---|
[637] | 414 | return $classifyinfo->{'numleafdocs'} if (defined $classifyinfo->{'numleafdocs'});
|
---|
| 415 |
|
---|
[15703] | 416 | foreach my $content (@{$classifyinfo->{'contains'}}) {
|
---|
[315] | 417 | if (defined $content->{'OID'}) {
|
---|
| 418 | # found a book
|
---|
[637] | 419 | $num_leaf_docs ++;
|
---|
[9790] | 420 | } elsif (($sub_num_leaf_docs = &check_contents ($content,$remove_empty_classifications)) > 0) {
|
---|
[315] | 421 | # there's a book somewhere below
|
---|
[637] | 422 | $num_leaf_docs += $sub_num_leaf_docs;
|
---|
[315] | 423 | } else {
|
---|
[8445] | 424 | if ($remove_empty_classifications){
|
---|
| 425 | # section contains no books so we want to remove
|
---|
| 426 | # it from its parents contents
|
---|
| 427 | $content = undef;
|
---|
| 428 | }
|
---|
[315] | 429 | }
|
---|
| 430 | }
|
---|
[637] | 431 |
|
---|
| 432 | $classifyinfo->{'numleafdocs'} = $num_leaf_docs;
|
---|
| 433 | return $num_leaf_docs;
|
---|
[315] | 434 | }
|
---|
| 435 |
|
---|
[214] | 436 | 1;
|
---|