1 | ###########################################################################
|
---|
2 | #
|
---|
3 | # EmbeddedMetadataPlugin.pm -- A plugin for EXIF
|
---|
4 | #
|
---|
5 | # A component of the Greenstone digital library software
|
---|
6 | # from the New Zealand Digital Library Project at the
|
---|
7 | # University of Waikato, New Zealand.
|
---|
8 | #
|
---|
9 | # Copyright 2007 New Zealand Digital Library Project
|
---|
10 | #
|
---|
11 | # This program is free software; you can redistribute it and/or modify
|
---|
12 | # it under the terms of the GNU General Public License as published by
|
---|
13 | # the Free Software Foundation; either version 2 of the License, or
|
---|
14 | # (at your option) any later version.
|
---|
15 | #
|
---|
16 | # This program is distributed in the hope that it will be useful,
|
---|
17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
19 | # GNU General Public License for more details.
|
---|
20 | #
|
---|
21 | # You should have received a copy of the GNU General Public License
|
---|
22 | # along with this program; if not, write to the Free Software
|
---|
23 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
24 | #
|
---|
25 | ###########################################################################
|
---|
26 |
|
---|
27 |
|
---|
28 | package EmbeddedMetadataPlugin;
|
---|
29 |
|
---|
30 | use BaseImporter;
|
---|
31 | use MetadataRead;
|
---|
32 | use util;
|
---|
33 |
|
---|
34 | use Encode;
|
---|
35 | use Image::ExifTool qw(:Public);
|
---|
36 | use strict;
|
---|
37 |
|
---|
38 | no strict 'refs'; # allow filehandles to be variables and viceversa
|
---|
39 |
|
---|
40 |
|
---|
41 | sub BEGIN
|
---|
42 | {
|
---|
43 | @EmbeddedMetadataPlugin::ISA = ('MetadataRead', 'BaseImporter');
|
---|
44 | binmode(STDERR, ":utf8");
|
---|
45 | }
|
---|
46 |
|
---|
47 | my $encoding_plus_auto_list = [{
|
---|
48 | 'name' => "auto",
|
---|
49 | 'desc' => "{ReadTextFile.input_encoding.auto}" }];
|
---|
50 | push(@{$encoding_plus_auto_list},@{$CommonUtil::encoding_list});
|
---|
51 |
|
---|
52 | my $arguments = [{
|
---|
53 | 'name' => "metadata_field_separator",
|
---|
54 | 'desc' => "{HTMLPlugin.metadata_field_separator}",
|
---|
55 | 'type' => "string",
|
---|
56 | 'deft' => ""
|
---|
57 | },{
|
---|
58 | 'name' => "input_encoding",
|
---|
59 | 'desc' => "{ReadTextFile.input_encoding}",
|
---|
60 | 'type' => "enum",
|
---|
61 | 'list' => $encoding_plus_auto_list,
|
---|
62 | 'reqd' => "no",
|
---|
63 | 'deft' => "auto"
|
---|
64 | },{
|
---|
65 | 'name' => "join_before_split",
|
---|
66 | 'desc' => "{EmbeddedMetadataPlugin.join_before_split}",
|
---|
67 | 'type' => "flag"
|
---|
68 | },{
|
---|
69 | 'name' => "join_character",
|
---|
70 | 'desc' => "{EmbeddedMetadataPlugin.join_character}",
|
---|
71 | 'type' => "string",
|
---|
72 | 'deft' => " "
|
---|
73 | },{
|
---|
74 | 'name' => "apply_join_before_split_to_metafields",
|
---|
75 | 'desc' => "{EmbeddedMetadataPlugin.apply_join_before_split_to_metafields}",
|
---|
76 | 'type' => "string",
|
---|
77 | 'reqd' => "no",
|
---|
78 | 'deft' => ".*Keywords" # regex. Set to .* to apply join_before_split to All meta fields (that are arrays of values)
|
---|
79 | },{
|
---|
80 | 'name' => "trim_whitespace",
|
---|
81 | 'desc' => "{EmbeddedMetadataPlugin.trim_whitespace}",
|
---|
82 | 'type' => "enum",
|
---|
83 | 'list' => [{'name' => "true", 'desc' => "{common.true}"}, {'name' => "false", 'desc' => "{common.false}"}],
|
---|
84 | 'deft' => "true"
|
---|
85 | },{
|
---|
86 | 'name' => "set_filter_list",
|
---|
87 | 'desc' => "{EmbeddedMetadataPlugin.set_filter_list}",
|
---|
88 | 'type' => "string"
|
---|
89 | },{
|
---|
90 | 'name' => "set_filter_regexp",
|
---|
91 | 'desc' => "{EmbeddedMetadataPlugin.set_filter_regexp}",
|
---|
92 | 'type' => "string",
|
---|
93 | 'deft' => ".*" #If changing this default, also need to update the constructor
|
---|
94 | }];
|
---|
95 |
|
---|
96 | my $options = {
|
---|
97 | 'name' => "EmbeddedMetadataPlugin",
|
---|
98 | 'desc' => "{EmbeddedMetadataPlugin.desc}",
|
---|
99 | 'abstract' => "no",
|
---|
100 | 'inherits' => "yes",
|
---|
101 | 'args' => $arguments };
|
---|
102 |
|
---|
103 | sub new()
|
---|
104 | {
|
---|
105 | my ($class) = shift (@_);
|
---|
106 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
|
---|
107 | push(@$pluginlist, $class);
|
---|
108 |
|
---|
109 | if(defined $arguments){ push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});}
|
---|
110 | if(defined $options) { push(@{$hashArgOptLists->{"OptList"}},$options)};
|
---|
111 |
|
---|
112 | my $self = new BaseImporter($pluginlist, $inputargs, $hashArgOptLists);
|
---|
113 |
|
---|
114 | # Create a new Image::ExifTool object
|
---|
115 | my $exifTool = new Image::ExifTool;
|
---|
116 | $exifTool->Options(Duplicates => 0);
|
---|
117 | $exifTool->Options(PrintConv => 0);
|
---|
118 | $exifTool->Options(Unknown => 1);
|
---|
119 | $exifTool->Options('Verbose');
|
---|
120 | $self->{'exiftool'} = $exifTool;
|
---|
121 |
|
---|
122 | my $setFilterList = $self->{'set_filter_list'};
|
---|
123 | my $setFilterRegexp = $self->{'set_filter_regexp'};
|
---|
124 | if ((defined $setFilterList) && ($setFilterList ne ""))
|
---|
125 | {
|
---|
126 | if ((defined $setFilterRegexp) && ($setFilterRegexp ne ".*") && ($setFilterRegexp ne ""))
|
---|
127 | {
|
---|
128 | my $outhandle = $self->{'outhandle'};
|
---|
129 | print $outhandle "Warning: can only specify 'set_filter_list' or 'set_filter_regexp'\n";
|
---|
130 | print $outhandle " defaulting to 'set_filter_list'\n";
|
---|
131 | }
|
---|
132 |
|
---|
133 | my @sets = split(/,/,$setFilterList);
|
---|
134 | my @sets_bracketed;
|
---|
135 | foreach my $s (@sets)
|
---|
136 | {
|
---|
137 | $s =~ s/^(ex\.)?(.*)$/(ex.$2)/;
|
---|
138 | push (@sets_bracketed, $s);
|
---|
139 | }
|
---|
140 |
|
---|
141 | my $setFilterRegexp = join("|",@sets_bracketed);
|
---|
142 | $self->{'set_filter_regexp'} = $setFilterRegexp;
|
---|
143 | }
|
---|
144 |
|
---|
145 | return bless $self, $class;
|
---|
146 | }
|
---|
147 |
|
---|
148 | sub begin {
|
---|
149 | my $self = shift (@_);
|
---|
150 | my ($pluginfo, $base_dir, $processor, $maxdocs) = @_;
|
---|
151 |
|
---|
152 |
|
---|
153 | # For most plugins, the metadata_read() phase either does not
|
---|
154 | # exist, or is very fast at processing the files, and so is
|
---|
155 | # not an undue burden on collection building.
|
---|
156 |
|
---|
157 | # EmbeddedMetadataPlugin bucks this trend, as the ExifTool module
|
---|
158 | # it relies on needs to make a fairly detailed scan of the files
|
---|
159 | # that match the plugin's process expression. This has the
|
---|
160 | # unfortunate side effect of hampering quick collection building
|
---|
161 | # with '-maxdocs'. It is therefore worth a bit of non-standard
|
---|
162 | # "meddling" (as Anu would say) to help the special case of
|
---|
163 | # 'maxdocs' run more quickly.
|
---|
164 | #
|
---|
165 | # The approach is to notice how many files EmbeddedMetadtaPlugin
|
---|
166 | # has scanned, and once this reaches 'maxdocs' to then force the
|
---|
167 | # can_process_this_file_for_metadata() method to always return the
|
---|
168 | # answer 'not recognized' to prevent any further scanning.
|
---|
169 | # Bacause 'maxdocs' is not one of the standard parameters passed
|
---|
170 | # in to metadata_read() we need to store the value in the object
|
---|
171 | # using this method so it can be used at the relevant place in the
|
---|
172 | # code later on
|
---|
173 |
|
---|
174 | $self->{'maxdocs'} = $maxdocs;
|
---|
175 | $self->{'exif_scanned_count'} = 0;
|
---|
176 |
|
---|
177 | }
|
---|
178 |
|
---|
179 |
|
---|
180 | # Need to think some more about this
|
---|
181 | sub get_default_process_exp()
|
---|
182 | {
|
---|
183 | ## return ".*";
|
---|
184 | q^(?i)\.(jpe?g|gif|png|tiff|pdf)$^;
|
---|
185 | }
|
---|
186 |
|
---|
187 | # plugins that rely on more than process_exp (eg XML plugins) can override this method
|
---|
188 | sub can_process_this_file {
|
---|
189 | my $self = shift(@_);
|
---|
190 |
|
---|
191 | # we process metadata, not the file
|
---|
192 | return 0;
|
---|
193 | }
|
---|
194 |
|
---|
195 | # Even if a plugin can extract metadata in its metadata_read pass,
|
---|
196 | # make the default return 'undef' so processing of the file continues
|
---|
197 | # down the pipeline, so other plugins can also have the opportunity to
|
---|
198 | # locate metadata and set it up in the extrametakeys variables that
|
---|
199 | # are passed around.
|
---|
200 |
|
---|
201 | sub can_process_this_file_for_metadata {
|
---|
202 | my $self = shift(@_);
|
---|
203 | my ($filename) = (@_);
|
---|
204 |
|
---|
205 | # Want this plugin to look for metadata in the named file using
|
---|
206 | # ExifTool through its metadata_read() function, as long as it
|
---|
207 | # matches the process expression. But first there are a few
|
---|
208 | # special cases to test for ...
|
---|
209 | #
|
---|
210 |
|
---|
211 | if (-d $filename && !$self->{'can_process_directories'}) {
|
---|
212 | return 0;
|
---|
213 | }
|
---|
214 |
|
---|
215 | if ($self->{'maxdocs'} != -1) {
|
---|
216 | $self->{'exif_scanned_count'}++;
|
---|
217 | if ($self->{'exif_scanned_count'} > $self->{'maxdocs'}) {
|
---|
218 | # Above the limit of files to scan
|
---|
219 | return 0;
|
---|
220 | }
|
---|
221 | }
|
---|
222 |
|
---|
223 |
|
---|
224 | if ($self->{'process_exp'} ne "" && $filename =~ /$self->{'process_exp'}/) {
|
---|
225 | # Even though we say yes to this here, because we are using a custom
|
---|
226 | # metadata_read() method in this plugin, we can also ensure the
|
---|
227 | # file is considered by other plugins in the pipeline
|
---|
228 |
|
---|
229 | return 1;
|
---|
230 | }
|
---|
231 |
|
---|
232 | # If we get to here then the answer is no for processing by this plugin
|
---|
233 | # Note :because this plugin has its own custom metadata_read(), even
|
---|
234 | # though we return a 'no' here, this doesn't stop the file being
|
---|
235 | # considered by other plugins in the pipleline for metadata_read().
|
---|
236 | # This is needed to ensure a file like metadata.xml (which would
|
---|
237 | # normally not be of interest to this plugin) is passed on to
|
---|
238 | # the plugin that does need to read it (MetadataPlugin in this case).
|
---|
239 |
|
---|
240 | return 0;
|
---|
241 | }
|
---|
242 |
|
---|
243 | sub checkAgainstFilters
|
---|
244 | {
|
---|
245 | my $self = shift(@_);
|
---|
246 | my $name = shift(@_);
|
---|
247 |
|
---|
248 | my $setFilterRegexp = $self->{'set_filter_regexp'};
|
---|
249 | if((defined $setFilterRegexp) && ($setFilterRegexp ne ""))
|
---|
250 | {
|
---|
251 | return ($name =~ m/($setFilterRegexp)/i);
|
---|
252 | }
|
---|
253 | else
|
---|
254 | {
|
---|
255 | return 1;
|
---|
256 | }
|
---|
257 | }
|
---|
258 |
|
---|
259 | sub filtered_add_metadata
|
---|
260 | {
|
---|
261 | my $self = shift(@_);
|
---|
262 | my ($field,$val,$exif_metadata_ref) = @_;
|
---|
263 |
|
---|
264 | my $count = 0;
|
---|
265 |
|
---|
266 | if ($self->checkAgainstFilters($field)) {
|
---|
267 | push (@{$exif_metadata_ref->{$field}}, $self->gsSafe($val));
|
---|
268 | $count++;
|
---|
269 |
|
---|
270 |
|
---|
271 | if ($field =~ m/GPSPosition/) {
|
---|
272 | my ($lat,$long) = split(/\s+/,$val);
|
---|
273 |
|
---|
274 | push (@{$exif_metadata_ref->{"Longitude"}}, $self->gsSafe($long));
|
---|
275 | push (@{$exif_metadata_ref->{"Latitude"}}, $self->gsSafe($lat));
|
---|
276 | # 'count' keeps track of the number of items extracted from the file
|
---|
277 | # so for these 'on the side' values set, don't include them in
|
---|
278 | # the count
|
---|
279 |
|
---|
280 | }
|
---|
281 |
|
---|
282 |
|
---|
283 | if ($field =~ m/GPSDateTime/) {
|
---|
284 | my ($date,$time) = split(/\s+/,$val);
|
---|
285 |
|
---|
286 | my ($yyyy,$mm,$dd) = ($date =~ m/^(\d{4}):(\d{2}):(\d{2})$/);
|
---|
287 |
|
---|
288 | push (@{$exif_metadata_ref->{"Date"}}, $self->gsSafe("$yyyy$mm$dd"));
|
---|
289 | # as for Long/Lat don't need to increase 'count'
|
---|
290 |
|
---|
291 | }
|
---|
292 |
|
---|
293 |
|
---|
294 | }
|
---|
295 |
|
---|
296 | return $count;
|
---|
297 | }
|
---|
298 |
|
---|
299 |
|
---|
300 | sub extractEmbeddedMetadata()
|
---|
301 | {
|
---|
302 | my $self = shift(@_);
|
---|
303 | my ($file, $filename, $extrametadata, $extrametakeys, $extrametafile) = @_;
|
---|
304 |
|
---|
305 | my %exif_metadata = ();
|
---|
306 |
|
---|
307 | my $verbosity = $self->{'verbosity'};
|
---|
308 | my $outhandle = $self->{'outhandle'};
|
---|
309 |
|
---|
310 | my $metadata_count = 0;
|
---|
311 |
|
---|
312 | my $separator = $self->{'metadata_field_separator'};
|
---|
313 | if ($separator eq "") {
|
---|
314 | undef $separator;
|
---|
315 | }
|
---|
316 |
|
---|
317 | # Check if join_before_split is only applied to spefified fields or all fields
|
---|
318 | my $apply_join_before_split_to_metafields = $self->{'apply_join_before_split_to_metafields'};
|
---|
319 | if($apply_join_before_split_to_metafields eq "") {
|
---|
320 | undef $apply_join_before_split_to_metafields;
|
---|
321 | }
|
---|
322 |
|
---|
323 | my @group_list = Image::ExifTool::GetAllGroups(0);
|
---|
324 | foreach my $group (@group_list) {
|
---|
325 | ## print STDERR "**** group = $group\n";
|
---|
326 |
|
---|
327 | # Extract meta information from an image
|
---|
328 | $self->{'exiftool'}->Options(Group0 => [$group]);
|
---|
329 | $self->{'exiftool'}->ExtractInfo($filename);
|
---|
330 |
|
---|
331 | # Get list of tags in the order they were found in the file
|
---|
332 | my @tag_list = $self->{'exiftool'}->GetFoundTags('File');
|
---|
333 | foreach my $tag (@tag_list) {
|
---|
334 |
|
---|
335 | # Strip any numbering suffix
|
---|
336 | $tag =~ s/^([^\s]+)\s.*$/$1/i;
|
---|
337 | my $value = $self->{'exiftool'}->GetValue($tag);
|
---|
338 | if (defined $value && $value =~ /[a-z0-9]+/i) {
|
---|
339 | my $field = "ex.$group.$tag";
|
---|
340 |
|
---|
341 | my $encoding = $self->{'input_encoding'};
|
---|
342 | if($encoding eq "auto")
|
---|
343 | {
|
---|
344 | $encoding = "utf8"
|
---|
345 | }
|
---|
346 |
|
---|
347 | if (!defined $exif_metadata{$field})
|
---|
348 | {
|
---|
349 | $exif_metadata{$field} = [];
|
---|
350 | }
|
---|
351 |
|
---|
352 | $field = Encode::decode($encoding,$field);
|
---|
353 | my $metadata_done = 0;
|
---|
354 | if (ref $value eq 'SCALAR') {
|
---|
355 | if ($$value =~ /^Binary data/) {
|
---|
356 | $value = "($$value)";
|
---|
357 | }
|
---|
358 | else {
|
---|
359 | my $len = length($$value);
|
---|
360 | $value = "(Binary data $len bytes)";
|
---|
361 | }
|
---|
362 | }
|
---|
363 | elsif (ref $value eq 'ARRAY') {
|
---|
364 | my $join_before_split_for_this_field = $self->{'join_before_split'}; # if join_before_split set, will apply it to all metadata fields
|
---|
365 | # If specific metadata fields specified, only apply join_before_split to those fields
|
---|
366 | # (in which case check if current metadata field matches any of those metadata fields)
|
---|
367 | # else apply to all metadata fields as before
|
---|
368 | if($join_before_split_for_this_field && $apply_join_before_split_to_metafields && $field !~ m/$apply_join_before_split_to_metafields/) {
|
---|
369 | undef $join_before_split_for_this_field;
|
---|
370 | }
|
---|
371 |
|
---|
372 | $metadata_done = 1;
|
---|
373 |
|
---|
374 | my $allvals = "";
|
---|
375 | foreach my $v (@$value) {
|
---|
376 | $v = Encode::decode($encoding,$v);
|
---|
377 |
|
---|
378 | if(!$join_before_split_for_this_field) { # if(!$self->{'join_before_split'}){
|
---|
379 | if (defined $separator) {
|
---|
380 | my @vs = split($separator, $v);
|
---|
381 | foreach my $val (@vs) {
|
---|
382 | if ($val =~ /\S/) {
|
---|
383 | $metadata_count += $self->filtered_add_metadata($field,$val,\%exif_metadata);
|
---|
384 | }
|
---|
385 | }
|
---|
386 | }
|
---|
387 | else
|
---|
388 | {
|
---|
389 | $metadata_count += $self->filtered_add_metadata($field,$v,\%exif_metadata);
|
---|
390 | }
|
---|
391 | }
|
---|
392 | else{
|
---|
393 | if($allvals ne ""){
|
---|
394 | $allvals = $allvals . $self->{'join_character'};
|
---|
395 | }
|
---|
396 | $allvals = $allvals . $v;
|
---|
397 | }
|
---|
398 | }
|
---|
399 |
|
---|
400 | if($join_before_split_for_this_field) { #if($self->{'join_before_split'}){
|
---|
401 | if (defined $separator) {
|
---|
402 | my @vs = split($separator, $allvals);
|
---|
403 | foreach my $val (@vs) {
|
---|
404 | if ($val =~ /\S/) {
|
---|
405 | $metadata_count += $self->filtered_add_metadata($field,$val,\%exif_metadata);
|
---|
406 | }
|
---|
407 | }
|
---|
408 | }
|
---|
409 | else
|
---|
410 | {
|
---|
411 | $metadata_count += $self->filtered_add_metadata($field,$allvals,\%exif_metadata);
|
---|
412 | }
|
---|
413 | }
|
---|
414 | }
|
---|
415 | else {
|
---|
416 | $value = Encode::decode($encoding,$value);
|
---|
417 | if (defined $separator) {
|
---|
418 | my @vs = split($separator, $value);
|
---|
419 | $metadata_done = 1;
|
---|
420 | foreach my $v (@vs) {
|
---|
421 | if ($v =~ /\S/) {
|
---|
422 | $metadata_count += $self->filtered_add_metadata($field,$v,\%exif_metadata);
|
---|
423 | }
|
---|
424 | }
|
---|
425 | }
|
---|
426 | }
|
---|
427 | if (!$metadata_done) {
|
---|
428 | $metadata_count += $self->filtered_add_metadata($field,$value,\%exif_metadata);
|
---|
429 | }
|
---|
430 | }
|
---|
431 | }
|
---|
432 | }
|
---|
433 |
|
---|
434 | if ($metadata_count > 0) {
|
---|
435 | print $outhandle " Extracted $metadata_count pieces of metadata from $filename EXIF block\n";
|
---|
436 | }
|
---|
437 |
|
---|
438 | #print STDERR "file = $file " . &unicode::debug_unicode_string($file);
|
---|
439 | $file = &util::raw_filename_to_unicode(&util::filename_head($filename), $file);
|
---|
440 |
|
---|
441 | $self->store_meta_in_extrametadata($file, \%exif_metadata, undef, undef, $extrametakeys, $extrametadata, $extrametafile);
|
---|
442 |
|
---|
443 |
|
---|
444 | }
|
---|
445 |
|
---|
446 |
|
---|
447 | sub metadata_read
|
---|
448 | {
|
---|
449 | my $self = shift (@_);
|
---|
450 | my ($pluginfo, $base_dir, $file, $block_hash,
|
---|
451 | $extrametakeys, $extrametadata, $extrametafile,
|
---|
452 | $processor, $gli, $aux) = @_;
|
---|
453 |
|
---|
454 | my ($filename_full_path, $filename_no_path) = &util::get_full_filenames($base_dir, $file);
|
---|
455 |
|
---|
456 | # Now handled in the can_process_this_file_for_metadata method
|
---|
457 | #
|
---|
458 | # # we don't want to process directories
|
---|
459 | # if (!-f $filename_full_path) {
|
---|
460 | # return undef;
|
---|
461 | # }
|
---|
462 |
|
---|
463 | if (!$self->can_process_this_file_for_metadata($filename_full_path)) {
|
---|
464 |
|
---|
465 | # Avoid scanning it with ExifTool ...
|
---|
466 | # ... but let any other plugin in metadata_read() passes pipeline
|
---|
467 | # consider it
|
---|
468 |
|
---|
469 | return undef;
|
---|
470 | }
|
---|
471 |
|
---|
472 |
|
---|
473 | print STDERR "\n<Processing n='$file' p='EmbeddedMetadataPlugin'>\n" if ($gli);
|
---|
474 | print STDERR "EmbeddedMetadataPlugin: processing $file\n" if ($self->{'verbosity'}) > 1;
|
---|
475 |
|
---|
476 | $self->extractEmbeddedMetadata($filename_no_path,$filename_full_path,
|
---|
477 | $extrametadata,$extrametakeys,$extrametafile);
|
---|
478 |
|
---|
479 | # also want it considered by other plugins in the metadata_read() pipeline
|
---|
480 | return undef;
|
---|
481 | }
|
---|
482 |
|
---|
483 | sub read
|
---|
484 | {
|
---|
485 | return undef;
|
---|
486 | }
|
---|
487 |
|
---|
488 | sub process
|
---|
489 | {
|
---|
490 | # not used
|
---|
491 | return undef;
|
---|
492 | }
|
---|
493 |
|
---|
494 | sub gsSafe() {
|
---|
495 | my $self = shift(@_);
|
---|
496 | my ($text) = @_;
|
---|
497 |
|
---|
498 | # Replace potentially problematic characters
|
---|
499 | $text =~ s/\(/(/g;
|
---|
500 | $text =~ s/\)/)/g;
|
---|
501 | $text =~ s/,/,/g;
|
---|
502 | $text =~ s/\</</g;
|
---|
503 | $text =~ s/\>/>/g;
|
---|
504 | $text =~ s/\[/[/g;
|
---|
505 | $text =~ s/\]/]/g;
|
---|
506 | $text =~ s/\{/{/g;
|
---|
507 | $text =~ s/\}/}/g;
|
---|
508 | # Done
|
---|
509 |
|
---|
510 | if ($self->{'trim_whitespace'} eq "true"){
|
---|
511 | $text =~ s/^\s+//;
|
---|
512 | $text =~ s/\s+$//;
|
---|
513 | }
|
---|
514 |
|
---|
515 | return $text;
|
---|
516 | }
|
---|
517 |
|
---|
518 | 1;
|
---|