1 | ###########################################################################
|
---|
2 | #
|
---|
3 | # doc.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 redistr te 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 |
|
---|
26 | # base class to hold documents
|
---|
27 |
|
---|
28 | package doc;
|
---|
29 | eval {require bytes};
|
---|
30 |
|
---|
31 | BEGIN {
|
---|
32 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
|
---|
33 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib/dynamic/lib/site_perl/5.005/i686-linux");
|
---|
34 | }
|
---|
35 |
|
---|
36 | use strict;
|
---|
37 | use unicode;
|
---|
38 | use util;
|
---|
39 | use ghtml;
|
---|
40 | use File::stat;
|
---|
41 | ##use hashdoc;
|
---|
42 | use docprint;
|
---|
43 |
|
---|
44 | # the document type may be indexed_doc, nonindexed_doc, or
|
---|
45 | # classification
|
---|
46 |
|
---|
47 | our $OIDcount = 0;
|
---|
48 |
|
---|
49 | # rename_method can be 'url', 'none', 'base64'
|
---|
50 | sub new {
|
---|
51 | my $class = shift (@_);
|
---|
52 | my ($source_filename, $doc_type, $rename_method) = @_;
|
---|
53 |
|
---|
54 |
|
---|
55 | my $self = bless {'associated_files'=>[],
|
---|
56 | 'subsection_order'=>[],
|
---|
57 | 'next_subsection'=>1,
|
---|
58 | 'subsections'=>{},
|
---|
59 | 'metadata'=>[],
|
---|
60 | 'text'=>"",
|
---|
61 | 'OIDtype'=>"hash"}, $class;
|
---|
62 |
|
---|
63 | # used to set lastmodified here, but this can screw up the HASH ids, so
|
---|
64 | # the docsave processor now calls set_lastmodified
|
---|
65 |
|
---|
66 | $self->set_source_path($source_filename);
|
---|
67 |
|
---|
68 | if (defined $source_filename) {
|
---|
69 | $source_filename = &util::filename_within_collection($source_filename);
|
---|
70 | print STDERR "****** doc.pm::new(): no file rename method provided\n" unless $rename_method;
|
---|
71 | $self->set_source_filename ($source_filename, $rename_method);
|
---|
72 | }
|
---|
73 |
|
---|
74 | $self->set_doc_type ($doc_type) if defined $doc_type;
|
---|
75 |
|
---|
76 | return $self;
|
---|
77 | }
|
---|
78 |
|
---|
79 |
|
---|
80 | sub set_source_path
|
---|
81 | {
|
---|
82 | my $self = shift @_;
|
---|
83 | my ($source_filename) = @_;
|
---|
84 |
|
---|
85 | if (defined $source_filename) {
|
---|
86 | # On Windows the source_filename can be in terse DOS format
|
---|
87 | # e.g. test~1.txt
|
---|
88 |
|
---|
89 | $self->{'terse_source_path'} = $source_filename;
|
---|
90 |
|
---|
91 | if (-e $source_filename) {
|
---|
92 | # See if we can do better for Windows with a filename
|
---|
93 | if ($ENV{'GSDLOS'} =~ /^windows$/i) {
|
---|
94 | require Win32;
|
---|
95 | $self->{'source_path'} = Win32::GetLongPathName($source_filename);
|
---|
96 | }
|
---|
97 | else {
|
---|
98 | # For Unix-based systems, there is no difference between the two
|
---|
99 | $self->{'source_path'} = $source_filename;
|
---|
100 | }
|
---|
101 | }
|
---|
102 | else {
|
---|
103 | print STDERR "Warning: In doc::set_source_path(), file\n";
|
---|
104 | print STDERR " $source_filename\n";
|
---|
105 | print STDERR " does not exist\n";
|
---|
106 |
|
---|
107 | # (default) Set it to whatever we were given
|
---|
108 | $self->{'source_path'} = $source_filename;
|
---|
109 | }
|
---|
110 | }
|
---|
111 | else {
|
---|
112 | # Previous code for setting source_path allowed for
|
---|
113 | # it to be undefined, so continue this practice
|
---|
114 | $self->{'terse_source_path'} = undef;
|
---|
115 | $self->{'source_path'} = undef;
|
---|
116 | }
|
---|
117 | }
|
---|
118 |
|
---|
119 |
|
---|
120 | sub get_source_path
|
---|
121 | {
|
---|
122 | my $self = shift @_;
|
---|
123 |
|
---|
124 | return $self->{'terse_source_path'};
|
---|
125 | }
|
---|
126 |
|
---|
127 | # set lastmodified for OAI purposes, added by GRB, moved by kjdon
|
---|
128 | sub set_oailastmodified {
|
---|
129 | my $self = shift (@_);
|
---|
130 |
|
---|
131 | my $source_path = $self->{'terse_source_path'};
|
---|
132 |
|
---|
133 | if (defined $source_path && (-e $source_path)) {
|
---|
134 | my $current_time = time;
|
---|
135 |
|
---|
136 | my ($seconds, $minutes, $hours, $day_of_month, $month, $year,
|
---|
137 | $wday, $yday, $isdst) = localtime($current_time);
|
---|
138 |
|
---|
139 | my $date_modified = sprintf("%d%02d%02d",1900+$year,$month+1,$day_of_month);
|
---|
140 |
|
---|
141 | $self->add_utf8_metadata($self->get_top_section(), "oailastmodified", $current_time);
|
---|
142 | $self->add_utf8_metadata($self->get_top_section(), "oailastmodifieddate", $date_modified);
|
---|
143 | }
|
---|
144 | }
|
---|
145 |
|
---|
146 | # no longer used for OAI purposes, since lastmodified is not what we want as the
|
---|
147 | # Datestamp of a document. This doc metadata may be useful for general purposes.
|
---|
148 | sub set_lastmodified {
|
---|
149 | my $self = shift (@_);
|
---|
150 |
|
---|
151 | my $source_path = $self->{'terse_source_path'};
|
---|
152 |
|
---|
153 | if (defined $source_path && (-e $source_path)) {
|
---|
154 |
|
---|
155 | my $file_stat = stat($source_path);
|
---|
156 | my $mtime = $file_stat->mtime;
|
---|
157 | my ($seconds, $minutes, $hours, $day_of_month, $month, $year,
|
---|
158 | $wday, $yday, $isdst) = localtime($mtime);
|
---|
159 |
|
---|
160 | my $date_modified = sprintf("%d%02d%02d",1900+$year,$month+1,$day_of_month);
|
---|
161 |
|
---|
162 | $self->add_utf8_metadata($self->get_top_section(), "lastmodified", $mtime);
|
---|
163 | $self->add_utf8_metadata($self->get_top_section(), "lastmodifieddate", $date_modified);
|
---|
164 | }
|
---|
165 | }
|
---|
166 |
|
---|
167 | # clone the $self object
|
---|
168 | sub duplicate {
|
---|
169 | my $self = shift (@_);
|
---|
170 |
|
---|
171 | my $newobj = {};
|
---|
172 |
|
---|
173 | foreach my $k (keys %$self) {
|
---|
174 | $newobj->{$k} = &clone ($self->{$k});
|
---|
175 | }
|
---|
176 |
|
---|
177 | bless $newobj, ref($self);
|
---|
178 | return $newobj;
|
---|
179 | }
|
---|
180 |
|
---|
181 | sub clone {
|
---|
182 | my ($from) = @_;
|
---|
183 | my $type = ref ($from);
|
---|
184 |
|
---|
185 | if ($type eq "HASH") {
|
---|
186 | my $to = {};
|
---|
187 | foreach my $key (keys %$from) {
|
---|
188 | $to->{$key} = &clone ($from->{$key});
|
---|
189 | }
|
---|
190 | return $to;
|
---|
191 | } elsif ($type eq "ARRAY") {
|
---|
192 | my $to = [];
|
---|
193 | foreach my $v (@$from) {
|
---|
194 | push (@$to, &clone ($v));
|
---|
195 | }
|
---|
196 | return $to;
|
---|
197 | } else {
|
---|
198 | return $from;
|
---|
199 | }
|
---|
200 | }
|
---|
201 |
|
---|
202 | sub set_OIDtype {
|
---|
203 | my $self = shift (@_);
|
---|
204 | my ($type, $metadata) = @_;
|
---|
205 |
|
---|
206 | if (defined $type && $type =~ /^(hash|hash_on_file|hash_on_ga_xml|incremental|filename|dirname|assigned)$/) {
|
---|
207 | $self->{'OIDtype'} = $type;
|
---|
208 | } else {
|
---|
209 | $self->{'OIDtype'} = "hash";
|
---|
210 | }
|
---|
211 |
|
---|
212 | if ($type =~ /^assigned$/) {
|
---|
213 | if (defined $metadata) {
|
---|
214 | $self->{'OIDmetadata'} = $metadata;
|
---|
215 | } else {
|
---|
216 | $self->{'OIDmetadata'} = "dc.Identifier";
|
---|
217 | }
|
---|
218 | }
|
---|
219 | }
|
---|
220 |
|
---|
221 | # rename_method can be 'url', 'none', 'base64'
|
---|
222 | sub set_source_filename {
|
---|
223 | my $self = shift (@_);
|
---|
224 | my ($source_filename, $rename_method) = @_;
|
---|
225 |
|
---|
226 | # Since the gsdlsourcefilename element goes into the doc.xml it has
|
---|
227 | # to be utf8. However, it should also *represent* the source filename
|
---|
228 | # (in the import directory) which may not be utf8 at all.
|
---|
229 | # For instance, if this meta element (gsdlsourcefilename) will be used
|
---|
230 | # by other applications that parse doc.xml in order to locate
|
---|
231 | # gsdlsourcefilename. Therefore, the solution is to URLencode or base64
|
---|
232 | # encode the real filename as this is a binary-to-text encoding meaning
|
---|
233 | # that the resulting string is ASCII (utf8). Decoding will give the original.
|
---|
234 |
|
---|
235 | # print STDERR "******URL/base64 encoding the gsdl_source_filename $source_filename ";
|
---|
236 |
|
---|
237 | # URLencode just the gsdl_source_filename, not the directory. Then prepend dir
|
---|
238 | $source_filename = $self->encode_filename($source_filename, $rename_method);
|
---|
239 | # my ($srcfilename,$dirname,$suffix)
|
---|
240 | # = &File::Basename::fileparse($source_filename, "\\.[^\\.]+\$");
|
---|
241 | # print STDERR "-> $srcfilename -> ";
|
---|
242 | # $srcfilename = &util::rename_file($srcfilename.$suffix, $rename_method);
|
---|
243 | # $source_filename = &util::filename_cat($dirname, $srcfilename);
|
---|
244 | # print STDERR "$source_filename\n";
|
---|
245 |
|
---|
246 | $self->set_utf8_metadata_element ($self->get_top_section(),
|
---|
247 | "gsdlsourcefilename",
|
---|
248 | $source_filename);
|
---|
249 | }
|
---|
250 |
|
---|
251 | sub encode_filename {
|
---|
252 | my $self = shift (@_);
|
---|
253 | my ($source_filename, $rename_method) = @_;
|
---|
254 |
|
---|
255 | my ($srcfilename,$dirname,$suffix)
|
---|
256 | = &File::Basename::fileparse($source_filename, "\\.[^\\.]+\$");
|
---|
257 | # print STDERR "-> $srcfilename -> ";
|
---|
258 | $srcfilename = &util::rename_file($srcfilename.$suffix, $rename_method);
|
---|
259 | $source_filename = &util::filename_cat($dirname, $srcfilename);
|
---|
260 |
|
---|
261 | return $source_filename;
|
---|
262 | }
|
---|
263 |
|
---|
264 | sub set_converted_filename {
|
---|
265 | my $self = shift (@_);
|
---|
266 | my ($converted_filename) = @_;
|
---|
267 |
|
---|
268 | # we know the converted filename is utf8
|
---|
269 | $self->set_utf8_metadata_element ($self->get_top_section(),
|
---|
270 | "gsdlconvertedfilename",
|
---|
271 | $converted_filename);
|
---|
272 | }
|
---|
273 |
|
---|
274 | # returns the source_filename as it was provided
|
---|
275 | sub get_unmodified_source_filename {
|
---|
276 | my $self = shift (@_);
|
---|
277 |
|
---|
278 | return $self->{'terse_source_path'};
|
---|
279 | }
|
---|
280 |
|
---|
281 | # returns the source_filename with whatever rename_method was given
|
---|
282 | sub get_source_filename {
|
---|
283 | my $self = shift (@_);
|
---|
284 |
|
---|
285 | return $self->get_metadata_element ($self->get_top_section(), "gsdlsourcefilename");
|
---|
286 | }
|
---|
287 |
|
---|
288 |
|
---|
289 |
|
---|
290 | # returns converted filename if available else returns source filename
|
---|
291 | sub get_filename_for_hashing {
|
---|
292 | my $self = shift (@_);
|
---|
293 |
|
---|
294 | my $filename = $self->get_metadata_element ($self->get_top_section(), "gsdlconvertedfilename");
|
---|
295 |
|
---|
296 | if (!defined $filename) {
|
---|
297 | my $plugin_name = $self->get_metadata_element ($self->get_top_section(), "Plugin");
|
---|
298 | # if NULPlug processed file, then don't give a filename
|
---|
299 | if (defined $plugin_name && $plugin_name eq "NULPlug") {
|
---|
300 | $filename = undef;
|
---|
301 | } else { # returns the URL encoded source filename!
|
---|
302 | $filename = $self->get_metadata_element ($self->get_top_section(), "gsdlsourcefilename");
|
---|
303 | }
|
---|
304 | }
|
---|
305 |
|
---|
306 | if (!&util::filename_is_absolute($filename)) {
|
---|
307 | $filename = &util::filename_cat($ENV{'GSDLCOLLECTDIR'},$filename);
|
---|
308 | }
|
---|
309 |
|
---|
310 | return $filename;
|
---|
311 | }
|
---|
312 |
|
---|
313 | sub set_doc_type {
|
---|
314 | my $self = shift (@_);
|
---|
315 | my ($doc_type) = @_;
|
---|
316 |
|
---|
317 | $self->set_metadata_element ($self->get_top_section(),
|
---|
318 | "gsdldoctype",
|
---|
319 | $doc_type);
|
---|
320 | }
|
---|
321 |
|
---|
322 | # returns the gsdldoctype as it was provided
|
---|
323 | # the default of "indexed_doc" is used if no document
|
---|
324 | # type was provided
|
---|
325 | sub get_doc_type {
|
---|
326 | my $self = shift (@_);
|
---|
327 |
|
---|
328 | my $doc_type = $self->get_metadata_element ($self->get_top_section(), "gsdldoctype");
|
---|
329 | return $doc_type if (defined $doc_type);
|
---|
330 | return "indexed_doc";
|
---|
331 | }
|
---|
332 |
|
---|
333 |
|
---|
334 | # look up the reference to the a particular section
|
---|
335 | sub _lookup_section {
|
---|
336 | my $self = shift (@_);
|
---|
337 | my ($section) = @_;
|
---|
338 |
|
---|
339 | my ($num);
|
---|
340 | my $sectionref = $self;
|
---|
341 |
|
---|
342 | while (defined $section && $section ne "") {
|
---|
343 |
|
---|
344 | ($num, $section) = $section =~ /^\.?(\d+)(.*)$/;
|
---|
345 |
|
---|
346 | $num =~ s/^0+(\d)/$1/ if defined $num ; # remove leading 0s
|
---|
347 |
|
---|
348 | $section = "" unless defined $section;
|
---|
349 |
|
---|
350 |
|
---|
351 | if (defined $num && defined $sectionref->{'subsections'}->{$num}) {
|
---|
352 | $sectionref = $sectionref->{'subsections'}->{$num};
|
---|
353 | } else {
|
---|
354 | return undef;
|
---|
355 | }
|
---|
356 | }
|
---|
357 |
|
---|
358 | return $sectionref;
|
---|
359 | }
|
---|
360 |
|
---|
361 | # calculate OID by hashing the contents of the document
|
---|
362 | sub _calc_OID {
|
---|
363 | my $self = shift (@_);
|
---|
364 | my ($filename) = @_;
|
---|
365 |
|
---|
366 |
|
---|
367 | my $osexe = &util::get_os_exe();
|
---|
368 |
|
---|
369 | my $hashfile_exe = &util::filename_cat($ENV{'GSDLHOME'},"bin",
|
---|
370 | $ENV{'GSDLOS'},"hashfile$osexe");
|
---|
371 |
|
---|
372 | my $result = "NULL";
|
---|
373 |
|
---|
374 |
|
---|
375 | if (-e "$hashfile_exe") {
|
---|
376 | # $result = `\"$hashfile_exe\" \"$filename\"`;
|
---|
377 | # $result = `hashfile$osexe \"$filename\" 2>&1`;
|
---|
378 | $result = `hashfile$osexe \"$filename\"`;
|
---|
379 |
|
---|
380 | ($result) = $result =~ /:\s*([0-9a-f]+)/i;
|
---|
381 | } else {
|
---|
382 | print STDERR "doc::_calc_OID $hashfile_exe could not be found\n";
|
---|
383 | }
|
---|
384 | return "HASH$result";
|
---|
385 | }
|
---|
386 |
|
---|
387 | # methods dealing with OID, not groups of them.
|
---|
388 |
|
---|
389 | # if $OID is not provided one is calculated
|
---|
390 | sub set_OID {
|
---|
391 | my $self = shift (@_);
|
---|
392 | my ($OID) = @_;
|
---|
393 |
|
---|
394 | my $use_hash_oid = 0;
|
---|
395 | # if an OID wasn't provided calculate one
|
---|
396 | if (!defined $OID) {
|
---|
397 | $OID = "NULL";
|
---|
398 | if ($self->{'OIDtype'} =~ /^hash/) {
|
---|
399 | $use_hash_oid = 1;
|
---|
400 | } elsif ($self->{'OIDtype'} eq "incremental") {
|
---|
401 | $OID = "D" . $OIDcount;
|
---|
402 | $OIDcount ++;
|
---|
403 | } elsif ($self->{'OIDtype'} eq "filename") {
|
---|
404 | my $filename = $self->get_source_filename();
|
---|
405 | $OID = &File::Basename::fileparse($filename, qr/\.[^.]*/);
|
---|
406 | $OID = &util::tidy_up_oid($OID);
|
---|
407 | } elsif ($self->{'OIDtype'} eq "dirname") {
|
---|
408 | $OID = 'J';
|
---|
409 | my $filename = $self->get_source_filename();
|
---|
410 | if (defined($filename)) { # && -e $filename) {
|
---|
411 | $OID = &File::Basename::dirname($filename);
|
---|
412 | if (defined $OID) {
|
---|
413 | $OID = 'J'.&File::Basename::basename($OID);
|
---|
414 | $OID = &util::tidy_up_oid($OID);
|
---|
415 | } else {
|
---|
416 | print STDERR "Failed to find base for filename ($filename)...generating hash id\n";
|
---|
417 | $use_hash_oid = 1;
|
---|
418 | }
|
---|
419 | } else {
|
---|
420 | print STDERR "Failed to find filename, generating hash id\n";
|
---|
421 | $use_hash_oid = 1;
|
---|
422 | }
|
---|
423 |
|
---|
424 | } elsif ($self->{'OIDtype'} eq "assigned") {
|
---|
425 | my $identifier = $self->get_metadata_element ($self->get_top_section(), $self->{'OIDmetadata'});
|
---|
426 | if (defined $identifier && $identifier ne "") {
|
---|
427 | $OID = $identifier;
|
---|
428 | $OID = &util::tidy_up_oid($OID);
|
---|
429 | } else {
|
---|
430 | # need a hash id
|
---|
431 | print STDERR "no $self->{'OIDmetadata'} metadata found, generating hash id\n";
|
---|
432 | $use_hash_oid = 1;
|
---|
433 | }
|
---|
434 |
|
---|
435 | } else {
|
---|
436 | $use_hash_oid = 1;
|
---|
437 | }
|
---|
438 |
|
---|
439 | if ($use_hash_oid) {
|
---|
440 | my $hash_on_file = 1;
|
---|
441 | if ($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 = $self->get_filename_for_hashing();
|
---|
447 |
|
---|
448 | # -z: don't want to hash on the file if it is zero size
|
---|
449 | if (defined($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();
|
---|
457 | if (!open (OUTFILE, ">:utf8", $filename)) {
|
---|
458 | print STDERR "doc::set_OID could not write to $filename\n";
|
---|
459 | } else {
|
---|
460 | my $doc_text = &docprint::get_section_xml($self, $self->get_top_section());
|
---|
461 | print OUTFILE $doc_text;
|
---|
462 | close (OUTFILE);
|
---|
463 | }
|
---|
464 | $OID = $self->_calc_OID ($filename);
|
---|
465 | &util::rm ($filename);
|
---|
466 | }
|
---|
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 | {
|
---|
481 | my $hash_text = &docprint::get_section_xml($self, $self->get_top_section());
|
---|
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 | #--
|
---|
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 |
|
---|
791 | # returns the first metadata value which matches field
|
---|
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
|
---|
799 | sub get_metadata_element {
|
---|
800 | my $self = shift (@_);
|
---|
801 | my ($section, $field, $ignore_namespace) = @_;
|
---|
802 | my ($data);
|
---|
803 |
|
---|
804 | $ignore_namespace = 0 unless defined $ignore_namespace;
|
---|
805 |
|
---|
806 | my $section_ptr = $self->_lookup_section($section);
|
---|
807 | if (!defined $section_ptr) {
|
---|
808 | print STDERR "doc::get_metadata_element couldn't find section ", $section, "\n";
|
---|
809 | return;
|
---|
810 | }
|
---|
811 |
|
---|
812 | # Remove any namespace if we are being told to ignore them
|
---|
813 | if($ignore_namespace) {
|
---|
814 | $field =~ s/^.*\.//; #$field =~ s/^\w*\.//;
|
---|
815 | }
|
---|
816 |
|
---|
817 | foreach $data (@{$section_ptr->{'metadata'}}) {
|
---|
818 |
|
---|
819 | my $data_name = $data->[0];
|
---|
820 |
|
---|
821 | # Remove any namespace if we are being told to ignore them
|
---|
822 | if($ignore_namespace) {
|
---|
823 | $data_name =~ s/^.*\.//; #$data_name =~ s/^\w*\.//;
|
---|
824 | }
|
---|
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 |
|
---|
828 | return $data->[1] if (scalar(@$data) >= 2 && $data_name eq $field);
|
---|
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 $self = shift (@_);
|
---|
837 | my ($section, $field, $ignore_namespace) = @_;
|
---|
838 | my ($data);
|
---|
839 |
|
---|
840 | $ignore_namespace = 0 unless defined $ignore_namespace;
|
---|
841 |
|
---|
842 | my $section_ptr = $self->_lookup_section($section);
|
---|
843 | if (!defined $section_ptr) {
|
---|
844 | print STDERR "doc::get_metadata couldn't find section ",
|
---|
845 | $section, "\n";
|
---|
846 | return;
|
---|
847 | }
|
---|
848 |
|
---|
849 | # Remove any namespace if we are being told to ignore them
|
---|
850 | if($ignore_namespace) {
|
---|
851 | $field =~ s/^.*\.//;
|
---|
852 | }
|
---|
853 |
|
---|
854 | my @metadata = ();
|
---|
855 | foreach $data (@{$section_ptr->{'metadata'}}) {
|
---|
856 |
|
---|
857 | my $data_name = $data->[0];
|
---|
858 |
|
---|
859 | # Remove any namespace if we are being told to ignore them
|
---|
860 | if($ignore_namespace) {
|
---|
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 |
|
---|
866 | push (@metadata, $data->[1]) if ($data_name eq $field);
|
---|
867 | }
|
---|
868 |
|
---|
869 | return \@metadata;
|
---|
870 | }
|
---|
871 |
|
---|
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 |
|
---|
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) {
|
---|
906 | print STDERR "doc::get_all_metadata couldn't find section ", $section, "\n";
|
---|
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) {
|
---|
920 | print STDERR "doc::delete_metadata couldn't find section ", $section, "$field\n";
|
---|
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) {
|
---|
941 | print STDERR "doc::delete_all_metadata couldn't find section ", $section, "\n";
|
---|
942 | return;
|
---|
943 | }
|
---|
944 |
|
---|
945 | $section_ptr->{'metadata'} = [];
|
---|
946 | }
|
---|
947 |
|
---|
948 | sub set_metadata_element {
|
---|
949 | my $self = shift (@_);
|
---|
950 | my ($section, $field, $value) = @_;
|
---|
951 |
|
---|
952 | $self->set_utf8_metadata_element ($section, $field,
|
---|
953 | &unicode::ascii2utf8(\$value));
|
---|
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) = @_;
|
---|
961 |
|
---|
962 | $self->delete_metadata ($section, $field);
|
---|
963 | $self->add_utf8_metadata ($section, $field, $value);
|
---|
964 | }
|
---|
965 |
|
---|
966 |
|
---|
967 | # add_metadata assumes the text is in (extended) ascii form. For
|
---|
968 | # text which has already been converted to the UTF-8 format use
|
---|
969 | # add_utf8_metadata.
|
---|
970 | sub add_metadata {
|
---|
971 | my $self = shift (@_);
|
---|
972 | my ($section, $field, $value) = @_;
|
---|
973 |
|
---|
974 | $self->add_utf8_metadata ($section, $field,
|
---|
975 | &unicode::ascii2utf8(\$value));
|
---|
976 | }
|
---|
977 |
|
---|
978 | sub add_utf8_metadata {
|
---|
979 | my $self = shift (@_);
|
---|
980 | my ($section, $field, $value) = @_;
|
---|
981 |
|
---|
982 | # my ($cpackage,$cfilename,$cline,$csubr,$chas_args,$cwantarray) = caller(1);
|
---|
983 | # my ($lcfilename) = ($cfilename =~ m/([^\\\/]*)$/);
|
---|
984 | # print STDERR "** Calling method: $lcfilename:$cline $cpackage->$csubr\n";
|
---|
985 |
|
---|
986 | my $section_ptr = $self->_lookup_section($section);
|
---|
987 | if (!defined $section_ptr) {
|
---|
988 | print STDERR "doc::add_utf8_metadata couldn't find section ", $section, "\n";
|
---|
989 | return;
|
---|
990 | }
|
---|
991 | if (!defined $value) {
|
---|
992 | print STDERR "doc::add_utf8_metadata undefined value for $field\n";
|
---|
993 | return;
|
---|
994 | }
|
---|
995 | if (!defined $field) {
|
---|
996 | print STDERR "doc::add_utf8_metadata undefined metadata type \n";
|
---|
997 | return;
|
---|
998 | }
|
---|
999 |
|
---|
1000 | #print STDERR "###$field=$value\n";
|
---|
1001 |
|
---|
1002 | # For now, supress this check. Given that text data read in is now
|
---|
1003 | # Unicode aware, then the following block of code can (ironically enough)
|
---|
1004 | # cause our unicode compliant string to be re-encoded (leading to
|
---|
1005 | # a double-encoded UTF-8 string, which we definitely don't want!).
|
---|
1006 |
|
---|
1007 |
|
---|
1008 | # double check that the value is utf-8
|
---|
1009 | # if (!&unicode::check_is_utf8($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: $value\n";
|
---|
1013 | # }
|
---|
1014 |
|
---|
1015 | #If the metadata value is either a latitude or a longitude value then we want to save a shortened version for spacial searching purposes
|
---|
1016 | if($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 |
|
---|
1047 | push (@{$section_ptr->{'metadata'}}, [$field, $value]);
|
---|
1048 | }
|
---|
1049 |
|
---|
1050 |
|
---|
1051 | # methods for dealing with text
|
---|
1052 |
|
---|
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 |
|
---|
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 |
|
---|
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 |
|
---|
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.
|
---|
1113 | sub add_text {
|
---|
1114 | my $self = shift (@_);
|
---|
1115 | my ($section, $text) = @_;
|
---|
1116 |
|
---|
1117 | # convert the text to UTF-8 encoded unicode characters
|
---|
1118 | # and add the text
|
---|
1119 | $self->add_utf8_text($section, &unicode::ascii2utf8(\$text));
|
---|
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 |
|
---|
1130 | my $section_ptr = $self->_lookup_section($section);
|
---|
1131 | if (!defined $section_ptr) {
|
---|
1132 | print STDERR "doc::add_utf8_text couldn't find section " .
|
---|
1133 | "$section\n";
|
---|
1134 | return;
|
---|
1135 | }
|
---|
1136 |
|
---|
1137 | $section_ptr->{'text'} .= $text;
|
---|
1138 | }
|
---|
1139 |
|
---|
1140 | # returns the Source meta, which is the utf8 filename generated.
|
---|
1141 | # Added a separate method here for convenience
|
---|
1142 | sub get_source {
|
---|
1143 | my $self = shift (@_);
|
---|
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 (@_);
|
---|
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");
|
---|
1162 |
|
---|
1163 | # get the actual filename as it exists on the filesystem which this url refers to
|
---|
1164 | $source_file = &unicode::url_to_filename($source_file);
|
---|
1165 | my ($assocfilename) = $source_file =~ /([^\\\/]+)$/;
|
---|
1166 | return $assocfilename;
|
---|
1167 | }
|
---|
1168 |
|
---|
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);
|
---|
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 |
|
---|
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 |
|
---|
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 |
|
---|
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) = @_;
|
---|
1214 |
|
---|
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 | }
|
---|
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 |
|
---|
1234 | # used for writing out the archiveinf-doc info database, to list all the metadata files
|
---|
1235 | sub get_meta_files {
|
---|
1236 | my $self = shift (@_);
|
---|
1237 |
|
---|
1238 | return $self->{'metadata_files'};
|
---|
1239 | }
|
---|
1240 |
|
---|
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 |
|
---|
1278 | 1;
|
---|