source: main/trunk/greenstone2/perllib/plugins/WordPlugin.pm--for-gs311@ 34690

Last change on this file since 34690 was 34690, checked in by davidb, 3 years ago

When using an orthogonal index, the constructor is run for a second time. The -process_exp is no longer a function (&default_...) all, but resolved as the string/regular expression to use, meaning the eval call should not be run

File size: 10.6 KB
Line 
1###########################################################################
2#
3# WordPlugin.pm -- plugin for importing Microsoft Word documents
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###########################################################################
25package WordPlugin;
26
27use strict;
28no strict 'refs'; # allow filehandles to be variables and viceversa
29no strict 'subs';
30
31use gsprintf 'gsprintf';
32
33use AutoLoadConverters;
34use ConvertBinaryFile;
35
36sub BEGIN {
37 @WordPlugin::ISA = ('ConvertBinaryFile', 'AutoLoadConverters');
38}
39
40my $openoffice_available = 0;
41
42my $arguments =
43 [ { 'name' => "process_exp",
44 'desc' => "{BaseImporter.process_exp}",
45 'type' => "regexp",
46 'deft' => "&get_default_process_exp()", # delayed (see below)
47 'reqd' => "no" },
48 { 'name' => "description_tags",
49 'desc' => "{HTMLPlugin.description_tags}",
50 'type' => "flag" }
51 ];
52
53
54my $opt_windows_args = [ { 'name' => "windows_scripting",
55 'desc' => "{WordPlugin.windows_scripting}",
56 'type' => "flag",
57
58 'reqd' => "no" } ];
59
60my $opt_office_args = [ { 'name' => "metadata_fields",
61 'desc' => "{WordPlugin.metadata_fields}",
62 'type' => "string",
63 'deft' => "Title" },
64 { 'name' => "level1_header",
65 'desc' => "{StructuredHTMLPlugin.level1_header}",
66 'type' => "regexp",
67 'reqd' => "no",
68 'deft' => "" },
69 { 'name' => "level2_header",
70 'desc' => "{StructuredHTMLPlugin.level2_header}",
71 'type' => "regexp",
72 'reqd' => "no",
73 'deft' => "" },
74 { 'name' => "level3_header",
75 'desc' => "{StructuredHTMLPlugin.level3_header}",
76 'type' => "regexp",
77 'reqd' => "no",
78 'deft' => "" },
79 { 'name' => "title_header",
80 'desc' => "{StructuredHTMLPlugin.title_header}",
81 'type' => "regexp",
82 'reqd' => "no",
83 'deft' => "" },
84 { 'name' => "delete_toc",
85 'desc' => "{StructuredHTMLPlugin.delete_toc}",
86 'type' => "flag",
87 'reqd' => "no" },
88 { 'name' => "toc_header",
89 'desc' => "{StructuredHTMLPlugin.toc_header}",
90 'type' => "regexp",
91 'reqd' => "no",
92 'deft' => "" } ];
93
94
95my $options = { 'name' => "WordPlugin",
96 'desc' => "{WordPlugin.desc}",
97 'abstract' => "no",
98 'inherits' => "yes",
99 'srcreplaceable' => "yes", # Source docs in Word can be replaced with GS-generated html
100 'args' => $arguments };
101
102sub new {
103 my ($class) = shift (@_);
104 my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
105 push(@$pluginlist, $class);
106
107 # this bit needs to happen later after the arguments array has been
108 # finished - used for parsing the input args.
109 # push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
110 # this one needs to go in first, to get the print info in the right order
111 push(@{$hashArgOptLists->{"OptList"}},$options);
112
113 my $office_capable = 0;
114 if ($ENV{'GSDLOS'} =~ m/^windows$/i) {
115 push(@$arguments,@$opt_windows_args);
116 $office_capable = 1;
117 }
118
119 my $auto_converter_self = new AutoLoadConverters($pluginlist,$inputargs,$hashArgOptLists,["OpenOfficeConverter"],1);
120
121 if ($auto_converter_self->{'openoffice_available'}) {
122 $office_capable = 1;
123 $openoffice_available = 1;
124 }
125
126 # these office args apply to windows scripting or to openoffice conversion
127 if ($office_capable) {
128 push(@$arguments,@$opt_office_args);
129 }
130
131 # evaluate the default for process_exp - it needs to be delayed till here so we know if openoffice is available or not. But needs to be done before parsing the args.
132 foreach my $a (@$arguments) {
133 if ($a->{'name'} eq "process_exp") {
134 my $eval_expr = $a->{'deft'};
135 if ($eval_expr =~ m/^&/) {
136 $a->{'deft'} = eval "$eval_expr";
137 }
138 last;
139 }
140 }
141
142 # have finished modifying our arguments, add them to ArgList
143 push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
144
145 my $cbf_self = new ConvertBinaryFile($pluginlist, $inputargs, $hashArgOptLists);
146 my $self = BaseImporter::merge_inheritance($auto_converter_self, $cbf_self);
147
148 if ($self->{'info_only'}) {
149 # don't worry about any options etc
150 return bless $self, $class;
151 }
152
153 $self = bless $self, $class;
154 $self->{'file_type'} = "Word";
155
156 my $outhandle = $self->{'outhandle'};
157
158 if ($self->{'windows_scripting'}) {
159 $self->{'convert_options'} = "-windows_scripting";
160 $self->{'office_scripting'} = 1;
161 }
162 if ($self->{'openoffice_conversion'}) {
163 if ($self->{'windows_scripting'}) {
164 print $outhandle "Warning: Cannot have -windows_scripting and -openoffice_conversion\n";
165 print $outhandle " on at the same time. Defaulting to -windows_scripting\n";
166 $self->{'openoffice_conversion'} = 0;
167 }
168 else {
169 $self->{'office_scripting'} = 1;
170 }
171 }
172
173 # check convert_to
174 if ($self->{'convert_to'} eq "auto") {
175 $self->{'convert_to'} = "html";
176 }
177 # windows or open office scripting, outputs structuredHTML
178 if (defined $self->{'office_scripting'}) {
179 $self->{'convert_to'} = "structuredhtml";
180 }
181
182 # set convert_to_plugin and convert_to_ext
183 $self->set_standard_convert_settings();
184
185 my $secondary_plugin_name = $self->{'convert_to_plugin'};
186 my $secondary_plugin_options = $self->{'secondary_plugin_options'};
187
188 if (!defined $secondary_plugin_options->{$secondary_plugin_name}) {
189 $secondary_plugin_options->{$secondary_plugin_name} = [];
190 }
191 my $specific_options = $secondary_plugin_options->{$secondary_plugin_name};
192
193 # following title_sub removes "Page 1" and a leading
194 # "1", which is often the page number at the top of the page. Bad Luck
195 # if your document title actually starts with "1 " - is there a better way?
196 push(@$specific_options , "-title_sub", '^(Page\s+\d+)?(\s*1\s+)?');
197
198 my $associate_tail_re = $self->{'associate_tail_re'};
199 if ((defined $associate_tail_re) && ($associate_tail_re ne "")) {
200 push(@$specific_options, "-associate_tail_re", $associate_tail_re);
201 }
202 push(@$specific_options, "-file_rename_method", "none");
203
204 if ($secondary_plugin_name eq "StructuredHTMLPlugin") {
205 # Instruct HTMLPlugin (when eventually accessed through read_into_doc_obj)
206 # to extract these metadata fields from the HEAD META fields
207 push (@$specific_options, "-metadata_fields","Title,GENERATOR,date,author<Creator>");
208 push (@$specific_options, "-description_tags") if $self->{'office_scripting'};
209 push (@$specific_options, "-extract_language") if $self->{'extract_language'};
210 push (@$specific_options, "-delete_toc") if $self->{'delete_toc'};
211 push (@$specific_options, "-toc_header", $self->{'toc_header'}) if $self->{'toc_header'};
212 push (@$specific_options, "-title_header", $self->{'title_header'}) if $self->{'title_header'};
213 push (@$specific_options, "-level1_header", $self->{'level1_header'}) if $self->{'level1_header'};
214 push (@$specific_options, "-level2_header", $self->{'level2_header'})if $self->{'level2_header'};
215 push (@$specific_options, "-level3_header", $self->{'level3_header'}) if $self->{'level3_header'};
216 push (@$specific_options, "-metadata_fields", $self->{'metadata_fields'}) if $self->{'metadata_fields'};
217 push (@$specific_options, "-metadata_field_separator", $self->{'metadata_field_separator'}) if $self->{'metadata_field_separator'};
218 push(@$specific_options, "-processing_tmp_files");
219
220 }
221
222 elsif ($secondary_plugin_name eq "HTMLPlugin") {
223 push(@$specific_options, "-processing_tmp_files");
224 push(@$specific_options,"-input_encoding", "utf8");
225 push(@$specific_options,"-extract_language") if $self->{'extract_language'};
226 push(@$specific_options, "-description_tags") if $self->{'description_tags'};
227 # Instruct HTMLPlugin (when eventually accessed through read_into_doc_obj)
228 # to extract these metadata fields from the HEAD META fields
229 push(@$specific_options,"-metadata_fields","Title,GENERATOR,date,author<Creator>");
230 }
231
232 $self->load_secondary_plugins($class,$secondary_plugin_options,$hashArgOptLists);
233
234 return $self;
235}
236
237sub get_default_process_exp {
238 my $self = shift (@_);
239
240 if ($openoffice_available) {
241 return q^(?i)\.(doc|dot|docx|odt|wpd)$^;
242 } elsif ($ENV{'GSDLOS'} =~ m/^windows$/i) {
243 # if OS is windows, can try using docx2html vbs script to see if they have Word 2007
244 # if the user turns windows_scripting on
245 return q^(?i)\.(docx?|dot)$^;
246 }
247 return q^(?i)\.(doc|dot)$^;
248}
249
250sub init {
251 my $self = shift (@_);
252
253 # ConvertBinaryFile init
254 $self->SUPER::init(@_);
255 $self->AutoLoadConverters::init(@_);
256
257}
258
259sub begin {
260 my $self = shift (@_);
261
262 $self->AutoLoadConverters::begin(@_);
263 $self->SUPER::begin(@_);
264
265}
266
267sub deinit {
268 my $self = shift (@_);
269
270 $self->AutoLoadConverters::deinit(@_);
271 $self->SUPER::deinit(@_);
272
273}
274
275sub tmp_area_convert_file {
276
277 my $self = shift (@_);
278 return $self->AutoLoadConverters::tmp_area_convert_file(@_);
279
280}
281
282
283sub convert_post_process_old
284{
285 my $self = shift (@_);
286 my ($conv_filename) = @_;
287
288 my $outhandle=$self->{'outhandle'};
289
290 my ($language, $encoding) = $self->textcat_get_language_encoding ($conv_filename);
291
292 # read in file ($text will be in utf8)
293 my $text = "";
294 $self->read_file ($conv_filename, $encoding, $language, \$text);
295
296 # turn any high bytes that aren't valid utf-8 into utf-8.
297 #unicode::ensure_utf8(\$text);
298
299 # Write it out again!
300 #$self->utf8_write_file (\$text, $conv_filename);
301}
302
303# Modified to cache HTML files for efficieny reasons rather
304# than delete all. HTML is modified not to use IE's VML.
305# VML uses WML files, so these can be deleted.
306sub cleanup_tmp_area {
307 my ($self) = @_;
308 if (defined $self->{'files_dir'}) {
309 my $html_files_dir = $self->{'files_dir'};
310
311 if (opendir(DIN,$html_files_dir)) {
312 my @wmz_files = grep( /\.wmz$/, readdir(DIN));
313 foreach my $f (@wmz_files) {
314 my $full_f = &FileUtils::filenameConcatenate($html_files_dir,$f);
315 &FileUtils::removeFiles($full_f);
316 }
317 closedir(DIN);
318 }
319 else {
320 # if HTML file has no supporting images, then no _files dir made
321 # => do nothing
322 }
323 }
324}
325
326
3271;
328
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