| 1 | ###########################################################################
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| 2 | #
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| 3 | # WordPlugin.pm -- plugin for importing Microsoft Word documents
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| 4 | # A component of the Greenstone digital library software
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| 5 | # from the New Zealand Digital Library Project at the
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| 6 | # University of Waikato, New Zealand.
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| 7 | #
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| 8 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 9 | #
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| 10 | # This program is free software; you can redistribute it and/or modify
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| 11 | # it under the terms of the GNU General Public License as published by
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| 12 | # the Free Software Foundation; either version 2 of the License, or
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| 13 | # (at your option) any later version.
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| 14 | #
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| 15 | # This program is distributed in the hope that it will be useful,
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| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | # GNU General Public License for more details.
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| 19 | #
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| 20 | # You should have received a copy of the GNU General Public License
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| 21 | # along with this program; if not, write to the Free Software
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| 22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | #
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| 24 | ###########################################################################
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| 25 | package WordPlugin;
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| 26 |
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| 27 | use strict;
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| 28 | no strict 'refs'; # allow filehandles to be variables and viceversa
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| 29 | no strict 'subs';
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| 30 |
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| 31 | use gsprintf 'gsprintf';
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| 32 |
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| 33 | use AutoLoadConverters;
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| 34 | use ConvertBinaryFile;
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| 35 |
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| 36 | sub BEGIN {
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| 37 | @WordPlugin::ISA = ('ConvertBinaryFile', 'AutoLoadConverters');
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| 38 | }
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| 39 |
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| 40 | my $openoffice_available = 0;
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| 41 |
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| 42 | my $arguments =
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| 43 | [ { 'name' => "process_exp",
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| 44 | 'desc' => "{BaseImporter.process_exp}",
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| 45 | 'type' => "regexp",
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| 46 | 'deft' => "&get_default_process_exp()", # delayed (see below)
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| 47 | 'reqd' => "no" },
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| 48 | { 'name' => "description_tags",
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| 49 | 'desc' => "{HTMLPlugin.description_tags}",
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| 50 | 'type' => "flag" }
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| 51 | ];
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| 52 |
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| 53 |
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| 54 | my $opt_windows_args = [ { 'name' => "windows_scripting",
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| 55 | 'desc' => "{WordPlugin.windows_scripting}",
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| 56 | 'type' => "flag",
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| 57 |
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| 58 | 'reqd' => "no" } ];
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| 59 |
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| 60 | my $opt_office_args = [ { 'name' => "metadata_fields",
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| 61 | 'desc' => "{WordPlugin.metadata_fields}",
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| 62 | 'type' => "string",
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| 63 | 'deft' => "Title" },
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| 64 | { 'name' => "level1_header",
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| 65 | 'desc' => "{StructuredHTMLPlugin.level1_header}",
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| 66 | 'type' => "regexp",
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| 67 | 'reqd' => "no",
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| 68 | 'deft' => "" },
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| 69 | { 'name' => "level2_header",
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| 70 | 'desc' => "{StructuredHTMLPlugin.level2_header}",
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| 71 | 'type' => "regexp",
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| 72 | 'reqd' => "no",
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| 73 | 'deft' => "" },
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| 74 | { 'name' => "level3_header",
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| 75 | 'desc' => "{StructuredHTMLPlugin.level3_header}",
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| 76 | 'type' => "regexp",
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| 77 | 'reqd' => "no",
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| 78 | 'deft' => "" },
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| 79 | { 'name' => "title_header",
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| 80 | 'desc' => "{StructuredHTMLPlugin.title_header}",
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| 81 | 'type' => "regexp",
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| 82 | 'reqd' => "no",
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| 83 | 'deft' => "" },
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| 84 | { 'name' => "delete_toc",
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| 85 | 'desc' => "{StructuredHTMLPlugin.delete_toc}",
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| 86 | 'type' => "flag",
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| 87 | 'reqd' => "no" },
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| 88 | { 'name' => "toc_header",
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| 89 | 'desc' => "{StructuredHTMLPlugin.toc_header}",
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| 90 | 'type' => "regexp",
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| 91 | 'reqd' => "no",
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| 92 | 'deft' => "" } ];
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| 93 |
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| 94 | my $opt_soffice_args = [ { 'name' => "generate_pdf_as_associated_file",
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| 95 | 'desc' => "{WordPlugin.generate_pdf_as_associated_file}",
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| 96 | 'type' => "flag",
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| 97 | 'reqd' => "no"
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| 98 | } ];
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| 99 |
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| 100 |
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| 101 | my $options = { 'name' => "WordPlugin",
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| 102 | 'desc' => "{WordPlugin.desc}",
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| 103 | 'abstract' => "no",
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| 104 | 'inherits' => "yes",
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| 105 | 'srcreplaceable' => "yes", # Source docs in Word can be replaced with GS-generated html
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| 106 | 'args' => $arguments };
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| 107 |
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| 108 | sub new {
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| 109 | my ($class) = shift (@_);
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| 110 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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| 111 | push(@$pluginlist, $class);
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| 112 |
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| 113 | # this bit needs to happen later after the arguments array has been
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| 114 | # finished - used for parsing the input args.
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| 115 | # push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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| 116 | # this one needs to go in first, to get the print info in the right order
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| 117 | push(@{$hashArgOptLists->{"OptList"}},$options);
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| 118 |
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| 119 | my $office_capable = 0;
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| 120 | if ($ENV{'GSDLOS'} =~ m/^windows$/i) {
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| 121 | push(@$arguments,@$opt_windows_args);
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| 122 | $office_capable = 1;
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| 123 | }
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| 124 |
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| 125 | my $auto_converter_self = new AutoLoadConverters($pluginlist,$inputargs,$hashArgOptLists,["OpenOfficeConverter"],1);
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| 126 |
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| 127 | if ($auto_converter_self->{'openoffice_available'}) {
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| 128 | $office_capable = 1;
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| 129 | $openoffice_available = 1;
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| 130 | }
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| 131 |
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| 132 | # these office args apply to windows scripting or to openoffice conversion
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| 133 | if ($office_capable) {
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| 134 | push(@$arguments,@$opt_office_args);
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| 135 | }
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| 136 |
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| 137 | # Both OpenOffice and LibreOffice now have much better support for using the
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| 138 | # provided 'soffice' CLI directly convert Word doc/docx files to other
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| 139 | # formats, such as PDF
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| 140 | if ($openoffice_available) {
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| 141 | push(@$arguments,@$opt_soffice_args);
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| 142 | }
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| 143 |
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| 144 | # 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.
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| 145 | foreach my $a (@$arguments) {
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| 146 | if ($a->{'name'} eq "process_exp") {
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| 147 | my $eval_expr = $a->{'deft'};
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| 148 | if ($eval_expr =~ m/^&/) {
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| 149 | $a->{'deft'} = eval "$eval_expr";
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| 150 | }
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| 151 | last;
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| 152 | }
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| 153 | }
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| 154 |
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| 155 | # have finished modifying our arguments, add them to ArgList
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| 156 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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| 157 |
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| 158 | my $cbf_self = new ConvertBinaryFile($pluginlist, $inputargs, $hashArgOptLists);
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| 159 | my $self = BaseImporter::merge_inheritance($auto_converter_self, $cbf_self);
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| 160 |
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| 161 | if ($self->{'info_only'}) {
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| 162 | # don't worry about any options etc
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| 163 | return bless $self, $class;
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| 164 | }
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| 165 |
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| 166 | $self = bless $self, $class;
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| 167 | $self->{'file_type'} = "Word";
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| 168 |
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| 169 | my $outhandle = $self->{'outhandle'};
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| 170 |
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| 171 | if ($self->{'windows_scripting'}) {
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| 172 | $self->{'convert_options'} = "-windows_scripting";
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| 173 | $self->{'office_scripting'} = 1;
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| 174 | }
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| 175 | if ($self->{'openoffice_conversion'}) {
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| 176 | if ($self->{'windows_scripting'}) {
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| 177 | print $outhandle "Warning: Cannot have -windows_scripting and -openoffice_conversion\n";
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| 178 | print $outhandle " on at the same time. Defaulting to -windows_scripting\n";
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| 179 | $self->{'openoffice_conversion'} = 0;
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| 180 | }
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| 181 | else {
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| 182 | $self->{'office_scripting'} = 1;
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| 183 | }
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| 184 | }
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| 185 |
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| 186 | # check convert_to
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| 187 | if ($self->{'convert_to'} eq "auto") {
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| 188 | $self->{'convert_to'} = "html";
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| 189 | }
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| 190 | # windows or open office scripting, outputs structuredHTML
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| 191 | if (defined $self->{'office_scripting'}) {
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| 192 | $self->{'convert_to'} = "structuredhtml";
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| 193 | }
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| 194 |
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| 195 | # set convert_to_plugin and convert_to_ext
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| 196 | $self->set_standard_convert_settings();
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| 197 |
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| 198 | my $secondary_plugin_name = $self->{'convert_to_plugin'};
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| 199 | my $secondary_plugin_options = $self->{'secondary_plugin_options'};
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| 200 |
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| 201 | if (!defined $secondary_plugin_options->{$secondary_plugin_name}) {
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| 202 | $secondary_plugin_options->{$secondary_plugin_name} = [];
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| 203 | }
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| 204 | my $specific_options = $secondary_plugin_options->{$secondary_plugin_name};
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| 205 |
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| 206 | # following title_sub removes "Page 1" and a leading
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| 207 | # "1", which is often the page number at the top of the page. Bad Luck
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| 208 | # if your document title actually starts with "1 " - is there a better way?
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| 209 | push(@$specific_options , "-title_sub", '^(Page\s+\d+)?(\s*1\s+)?');
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| 210 |
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| 211 | my $associate_tail_re = $self->{'associate_tail_re'};
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| 212 | if ((defined $associate_tail_re) && ($associate_tail_re ne "")) {
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| 213 | push(@$specific_options, "-associate_tail_re", $associate_tail_re);
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| 214 | }
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| 215 | push(@$specific_options, "-file_rename_method", "none");
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| 216 |
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| 217 | if ($secondary_plugin_name eq "StructuredHTMLPlugin") {
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| 218 | # Instruct HTMLPlugin (when eventually accessed through read_into_doc_obj)
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| 219 | # to extract these metadata fields from the HEAD META fields
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| 220 | push (@$specific_options, "-metadata_fields","Title,GENERATOR,date,author<Creator>");
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| 221 | push (@$specific_options, "-description_tags") if $self->{'office_scripting'};
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| 222 | push (@$specific_options, "-extract_language") if $self->{'extract_language'};
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| 223 | push (@$specific_options, "-delete_toc") if $self->{'delete_toc'};
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| 224 | push (@$specific_options, "-toc_header", $self->{'toc_header'}) if $self->{'toc_header'};
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| 225 | push (@$specific_options, "-title_header", $self->{'title_header'}) if $self->{'title_header'};
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| 226 | push (@$specific_options, "-level1_header", $self->{'level1_header'}) if $self->{'level1_header'};
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| 227 | push (@$specific_options, "-level2_header", $self->{'level2_header'})if $self->{'level2_header'};
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| 228 | push (@$specific_options, "-level3_header", $self->{'level3_header'}) if $self->{'level3_header'};
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| 229 | push (@$specific_options, "-metadata_fields", $self->{'metadata_fields'}) if $self->{'metadata_fields'};
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| 230 | push (@$specific_options, "-metadata_field_separator", $self->{'metadata_field_separator'}) if $self->{'metadata_field_separator'};
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| 231 | push(@$specific_options, "-processing_tmp_files");
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| 232 |
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| 233 | }
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| 234 |
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| 235 | elsif ($secondary_plugin_name eq "HTMLPlugin") {
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| 236 | push(@$specific_options, "-processing_tmp_files");
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| 237 | push(@$specific_options,"-input_encoding", "utf8");
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| 238 | push(@$specific_options,"-extract_language") if $self->{'extract_language'};
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| 239 | push(@$specific_options, "-description_tags") if $self->{'description_tags'};
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| 240 | # Instruct HTMLPlugin (when eventually accessed through read_into_doc_obj)
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| 241 | # to extract these metadata fields from the HEAD META fields
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| 242 | push(@$specific_options,"-metadata_fields","Title,GENERATOR,date,author<Creator>");
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| 243 | }
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| 244 |
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| 245 | $self->load_secondary_plugins($class,$secondary_plugin_options,$hashArgOptLists);
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| 246 |
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| 247 | return $self;
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| 248 | }
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| 249 |
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| 250 | sub get_default_process_exp {
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| 251 | my $self = shift (@_);
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| 252 |
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| 253 | if ($openoffice_available) {
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| 254 | return q^(?i)\.(doc|dot|docx|odt|wpd)$^;
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| 255 | } elsif ($ENV{'GSDLOS'} =~ m/^windows$/i) {
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| 256 | # if OS is windows, can try using docx2html vbs script to see if they have Word 2007
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| 257 | # if the user turns windows_scripting on
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| 258 | return q^(?i)\.(docx?|dot)$^;
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| 259 | }
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| 260 | return q^(?i)\.(doc|dot)$^;
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| 261 | }
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| 262 |
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| 263 | sub init {
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| 264 | my $self = shift (@_);
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| 265 |
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| 266 | # ConvertBinaryFile init
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| 267 | $self->SUPER::init(@_);
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| 268 | $self->AutoLoadConverters::init(@_);
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| 269 |
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| 270 | }
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| 271 |
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| 272 | sub begin {
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| 273 | my $self = shift (@_);
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| 274 |
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| 275 | $self->AutoLoadConverters::begin(@_);
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| 276 | $self->SUPER::begin(@_);
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| 277 |
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| 278 | }
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| 279 |
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| 280 | sub deinit {
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| 281 | my $self = shift (@_);
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| 282 |
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| 283 | $self->AutoLoadConverters::deinit(@_);
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| 284 | $self->SUPER::deinit(@_);
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| 285 |
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| 286 | }
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| 287 |
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| 288 | sub tmp_area_convert_file {
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| 289 |
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| 290 | my $self = shift (@_);
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| 291 | return $self->AutoLoadConverters::tmp_area_convert_file(@_);
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| 292 | }
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| 293 |
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| 294 |
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| 295 | sub convert_post_process_old
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| 296 | {
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| 297 | my $self = shift (@_);
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| 298 | my ($conv_filename) = @_;
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| 299 |
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| 300 | my $outhandle=$self->{'outhandle'};
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| 301 |
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| 302 | my ($language, $encoding) = $self->textcat_get_language_encoding ($conv_filename);
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| 303 |
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| 304 | # read in file ($text will be in utf8)
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| 305 | my $text = "";
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| 306 | $self->read_file ($conv_filename, $encoding, $language, \$text);
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| 307 |
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| 308 | # turn any high bytes that aren't valid utf-8 into utf-8.
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| 309 | #unicode::ensure_utf8(\$text);
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| 310 |
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| 311 | # Write it out again!
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| 312 | #$self->utf8_write_file (\$text, $conv_filename);
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| 313 | }
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| 314 |
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| 315 | # Modified to cache HTML files for efficieny reasons rather
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| 316 | # than delete all. HTML is modified not to use IE's VML.
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| 317 | # VML uses WML files, so these can be deleted.
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| 318 | sub cleanup_tmp_area {
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| 319 | my ($self) = @_;
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| 320 | if (defined $self->{'files_dir'}) {
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| 321 | my $html_files_dir = $self->{'files_dir'};
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| 322 |
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| 323 | if (opendir(DIN,$html_files_dir)) {
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| 324 | my @wmz_files = grep( /\.wmz$/, readdir(DIN));
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| 325 | foreach my $f (@wmz_files) {
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| 326 | my $full_f = &FileUtils::filenameConcatenate($html_files_dir,$f);
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| 327 | &FileUtils::removeFiles($full_f);
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| 328 | }
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| 329 | closedir(DIN);
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| 330 | }
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| 331 | else {
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| 332 | # if HTML file has no supporting images, then no _files dir made
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| 333 | # => do nothing
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| 334 | }
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| 335 | }
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| 336 | }
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| 337 |
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| 338 |
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| 339 | # do plugin specific processing of doc_obj for doc_ext type
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| 340 | sub process_type {
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| 341 | my $self = shift (@_);
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| 342 | my ($base_dir, $file, $doc_obj) = @_;
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| 343 |
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| 344 | my $pt_return_val = $self->SUPER::process_type($base_dir,$file,$doc_obj);
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| 345 |
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| 346 | # Check if 'generate_pdf_as_associated_file' is set ...
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| 347 | if ($self->{'generate_pdf_as_associated_file'}) {
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| 348 | # => If it is, then set about generating a PDF version
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| 349 | # of the file, based on the doc/docx file and
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| 350 | # add in the generated PDF as an associated file
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| 351 |
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| 352 | my $source_file_path = &FileUtils::filenameConcatenate($base_dir, $file);
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| 353 |
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| 354 | ####
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| 355 | # The following is losely based on ImageConverter::convert()
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| 356 | #
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| 357 | # A sign that more refactoring could be done in this
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| 358 | # area of the code??
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| 359 | ####
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| 360 |
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| 361 | my $source_file_no_path = &File::Basename::basename($source_file_path);
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| 362 |
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| 363 | # Determine the full path name of the output file, 'target_file_path'
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| 364 | #
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| 365 | # Note: given how 'soffice' works with --outdir, we also need to work out
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| 366 | # 'target_file_dir', which is effectively dirname of 'target_file_path'
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| 367 | #
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| 368 | my $target_file_path; # the output file to generate (needed for caching checks)
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| 369 | my $target_file_dir; # the output directory to use (needed by soffice)
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| 370 |
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| 371 | if ($self->{'enable_cache'}) {
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| 372 | my $cached_file_dir = $self->{'cached_dir'};
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| 373 | my $file_root = $self->{'cached_file_root'};
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| 374 | my $ofile = "$file_root.pdf";
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| 375 |
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| 376 | $target_file_dir = $cached_file_dir;
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| 377 | $target_file_path = &FileUtils::filenameConcatenate($target_file_dir,$ofile);
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| 378 | }
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| 379 | else {
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| 380 | my $ofile = $source_file_no_path;
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| 381 | $ofile =~ s/\.\w+$/.pdf/;
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| 382 |
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| 383 | $target_file_dir = &util::determine_tmp_dir();
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| 384 | $target_file_path = &FileUtils::filenameConcatenate($target_file_dir,$ofile);
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| 385 | }
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| 386 |
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| 387 | # Generate and run the convert command
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| 388 | # !!!!! --convert-to and --output-dir
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| 389 | # libreoffice --headless --convert-to pdf MyWordFile.docx --outdir ./
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| 390 |
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| 391 | my $convert_command = "soffice --headless --convert-to pdf --outdir \"$target_file_dir\" \"$source_file_path\"";
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| 392 |
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| 393 | my $print_info = { 'message_prefix' => "Converting Doc to PDF",
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| 394 | 'message' => "Converting Word Document $source_file_path to $target_file_dir" };
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| 395 |
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| 396 | my ($regenerated,$result,$had_error)
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| 397 | = $self->autorun_general_cmd($convert_command,$source_file_path,$target_file_path,$print_info);
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| 398 |
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| 399 | if ($had_error) {
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| 400 | my $outhandle = $self->{'outhandle'};
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| 401 |
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| 402 | print $outhandle "Warning: failed to convert Word Document to PDF\n";
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| 403 | print $outhandle "$result\n";
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| 404 | }
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| 405 | else {
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| 406 | my $cursection = $doc_obj->get_top_section();
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| 407 | $doc_obj->associate_file($target_file_path, "doc.pdf", undef, $cursection);
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| 408 |
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| 409 | if (!$self->{'enable_cache'}) {
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| 410 | # Safe to now remove the tmp file
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| 411 | &FileUtils::removeFiles($target_file_path);
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| 412 | }
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| 413 | }
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| 414 | }
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| 415 |
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| 416 | return $pt_return_val;
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| 417 | }
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| 418 |
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| 419 |
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| 420 | 1;
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| 421 |
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