| 1 | ###########################################################################
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| 2 | #
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| 3 | # PagedImgPlug.pm -- plugin for sets of images and OCR text that
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| 4 | # make up a document
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| 5 | # A component of the Greenstone digital library software
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| 6 | # from the New Zealand Digital Library Project at the
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| 7 | # University of Waikato, New Zealand.
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| 8 | #
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| 9 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 10 | #
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| 11 | # This program is free software; you can redistribute it and/or modify
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| 12 | # it under the terms of the GNU General Public License as published by
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| 13 | # the Free Software Foundation; either version 2 of the License, or
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| 14 | # (at your option) any later version.
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| 15 | #
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| 16 | # This program is distributed in the hope that it will be useful,
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| 17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | # GNU General Public License for more details.
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| 20 | #
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| 21 | # You should have received a copy of the GNU General Public License
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| 22 | # along with this program; if not, write to the Free Software
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| 23 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 24 | #
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| 25 | ###########################################################################
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| 26 |
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| 27 | # PagedImgPlug
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| 28 | # processes sequences of images, with optional OCR text
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| 29 | #
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| 30 | # This plugin takes *.item files, which contain metadata and lists of image
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| 31 | # files, and produces a document containing sections, one for each page.
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| 32 | # The files should be named something.item, then you can have more than one
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| 33 | # book in a directory. You will need to create these files, one for each
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| 34 | # document/book.
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| 35 | #
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| 36 | #There are two formats for the item files: a plain text format, and an xml
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| 37 | #format. You can use either format, and can have both formats in the same
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| 38 | #collection if you like. If you use the plain format, you must not start the
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| 39 | #file off with <PagedDocument>
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| 40 |
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| 41 | #### PLAIN FORMAT
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| 42 | # The format of the xxx.item file is as follows:
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| 43 | # The first lines contain any metadata for the whole document
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| 44 | # <metadata-name>metadata-value
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| 45 | # eg.
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| 46 | # <Title>Snail farming
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| 47 | # <Date>19230102
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| 48 | # Then comes a list of pages, one page per line, each line has the format
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| 49 | #
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| 50 | # pagenum:imagefile:textfile:r
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| 51 | #
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| 52 | # page num and imagefile are required. pagenum is used for the Title
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| 53 | # of the section, and in the display is shown as page <pagenum>.
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| 54 | # imagefile is the image for the page. textfile is an optional text
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| 55 | # file containing the OCR (or any) text for the page - this gets added
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| 56 | # as the text for the section. r is optional, and signals that the image
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| 57 | # should be rotated 180deg. Eg use this if the image has been made upside down.
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| 58 | # So an example item file looks like:
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| 59 | # <Title>Snail farming
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| 60 | # <Date>19960403
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| 61 | # 1:p1.gif:p1.txt:
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| 62 | # 2:p2.gif::
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| 63 | # 3:p3.gif:p3.txt:
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| 64 | # 3b:p3b.gif:p3b.txt:r
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| 65 | # The second page has no text, the fourth page is a back page, and
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| 66 | # should be rotated.
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| 67 | #
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| 68 |
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| 69 | #### XML FORMAT
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| 70 | # The xml format looks like the following
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| 71 | #<PagedDocument>
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| 72 | #<Metadata name="Title">The Title of the entire document</Metadata>
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| 73 | #<Page pagenum="1" imgfile="xxx.jpg" txtfile="yyy.jpg">
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| 74 | #<Metadata name="Title">The Title of this page</Metadata>
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| 75 | #</Page>
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| 76 | #... more pages
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| 77 | #</PagedDocument>
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| 78 | #PagedDocument contains a list of Pages, Metadata and PageGroups. Any metadata
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| 79 | #that is not inside another tag will belong to the document.
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| 80 | #Each Page has a pagenum (not used at the moment), an imgfile and/or a txtfile.
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| 81 | #These are both optional - if neither is used, the section will have no content.
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| 82 | #Pages can also have metadata associated with them.
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| 83 | #PageGroups can be introduced at any point - they can contain Metadata and Pages and other PageGroups. They are used to introduce hierarchical structure into the document.
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| 84 | #For example
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| 85 | #<PagedDocument>
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| 86 | #<PageGroup>
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| 87 | #<Page>
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| 88 | #<Page>
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| 89 | #</PageGroup>
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| 90 | #<Page>
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| 91 | #</PagedDocument>
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| 92 | #would generate a structure like
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| 93 | #X
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| 94 | #--X
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| 95 | # --X
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| 96 | # --X
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| 97 | #--X
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| 98 | #PageGroup tags can also have imgfile/textfile metadata if you like - this way they get some content themselves.
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| 99 |
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| 100 | #Currently the XML structure doesn't work very well with the paged document type, unless you use numerical Titles for each section.
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| 101 | #There is still a bit of work to do on this format:
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| 102 | #* enable other text file types, eg html, pdf etc
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| 103 | #* make the document paging work properly
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| 104 | #* add pagenum as Title unless a Title is present?
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| 105 |
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| 106 | # All the supplemetary image amd text files should be in the same folder as
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| 107 | # the .item file.
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| 108 | #
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| 109 | # To display the images instead of the document text, you can use [srcicon]
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| 110 | # in the DocumentText format statement.
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| 111 | # For example,
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| 112 | #
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| 113 | # format DocumentText "<center><table width=_pagewidth_><tr><td>[srcicon]</td></tr></table></center>"
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| 114 | #
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| 115 | # To have it create thumbnail size images, use the '-thumbnail' option.
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| 116 | # To have it create medium size images for display, use the '-screenview'
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| 117 | # option. As usual, running
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| 118 | # 'perl -S pluginfo.pl PagedImgPlug' will list all the options.
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| 119 |
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| 120 | # If you want the resulting documents to be presented with a table of
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| 121 | # contents, use '-documenttype hierarchy', otherwise they will have
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| 122 | # next and previous arrows, and a goto page X box.
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| 123 |
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| 124 | # If you have used -screenview, you can also use [screenicon] in the format
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| 125 | # statement to display the smaller image. Here is an example that switches
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| 126 | # between the two:
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| 127 | #
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| 128 | # format DocumentText "<center><table width=_pagewidth_><tr><td>{If}{_cgiargp_ eq full,<a href='_httpdocument_&d=_cgiargd_&p=small'>Switch to small version.</a>,<a href='_httpdocument_&d=_cgiargd_&p=full'>Switch to fullsize version</a>}</td></tr><tr><td>{If}{_cgiargp_ eq full,<a href='_httpdocument_&d=_cgiargd_&p=small' title='Switch to small version'>[srcicon]</a>,<a href='_httpdocument_&d=_cgiargd_&p=full' title='Switch to fullsize version'>[screenicon]</a>}</td></tr></table></center>"
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| 129 | #
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| 130 | # Additional metadata can be added into the .item files, alternatively you can
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| 131 | # use normal metadata.xml files, with the name of the xxx.item file as the
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| 132 | # FileName (only for document level metadata).
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| 133 |
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| 134 | package PagedImgPlug;
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| 135 |
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| 136 | use XMLPlug;
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| 137 | use strict;
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| 138 | no strict 'refs'; # allow filehandles to be variables and viceversa
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| 139 |
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| 140 | sub BEGIN {
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| 141 | @PagedImgPlug::ISA = ('XMLPlug');
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| 142 | }
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| 143 |
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| 144 | my $type_list =
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| 145 | [ { 'name' => "paged",
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| 146 | 'desc' => "{PagedImgPlug.documenttype.paged}" },
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| 147 | { 'name' => "hierarchy",
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| 148 | 'desc' => "{PagedImgPlug.documenttype.hierarchy}" } ];
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| 149 |
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| 150 | my $arguments =
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| 151 | [ { 'name' => "process_exp",
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| 152 | 'desc' => "{BasPlug.process_exp}",
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| 153 | 'type' => "string",
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| 154 | 'deft' => &get_default_process_exp(),
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| 155 | 'reqd' => "no" },
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| 156 | { 'name' => "block_exp",
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| 157 | 'desc' => "{BasPlug.block_exp}",
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| 158 | 'type' => "string",
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| 159 | 'deft' => &get_default_block_exp(),
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| 160 | 'reqd' => "no" },
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| 161 | { 'name' => "title_sub",
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| 162 | 'desc' => "{HTMLPlug.title_sub}",
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| 163 | 'type' => "string",
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| 164 | 'deft' => "" },
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| 165 | { 'name' => "noscaleup",
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| 166 | 'desc' => "{ImagePlug.noscaleup}",
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| 167 | 'type' => "flag",
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| 168 | 'reqd' => "no" },
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| 169 | { 'name' => "thumbnail",
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| 170 | 'desc' => "{PagedImgPlug.thumbnail}",
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| 171 | 'type' => "flag",
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| 172 | 'reqd' => "no" },
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| 173 | { 'name' => "thumbnailsize",
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| 174 | 'desc' => "{ImagePlug.thumbnailsize}",
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| 175 | 'type' => "int",
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| 176 | 'deft' => "100",
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| 177 | 'range' => "1,",
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| 178 | 'reqd' => "no" },
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| 179 | { 'name' => "thumbnailtype",
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| 180 | 'desc' => "{ImagePlug.thumbnailtype}",
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| 181 | 'type' => "string",
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| 182 | 'deft' => "gif",
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| 183 | 'reqd' => "no" },
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| 184 | { 'name' => "screenview",
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| 185 | 'desc' => "{PagedImgPlug.screenview}",
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| 186 | 'type' => "flag",
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| 187 | 'reqd' => "no" },
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| 188 | { 'name' => "screenviewsize",
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| 189 | 'desc' => "{PagedImgPlug.screenviewsize}",
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| 190 | 'type' => "int",
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| 191 | 'deft' => "500",
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| 192 | 'range' => "1,",
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| 193 | 'reqd' => "no" },
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| 194 | { 'name' => "screenviewtype",
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| 195 | 'desc' => "{PagedImgPlug.screenviewtype}",
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| 196 | 'type' => "string",
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| 197 | 'deft' => "jpg",
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| 198 | 'reqd' => "no" },
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| 199 | { 'name' => "converttotype",
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| 200 | 'desc' => "{ImagePlug.converttotype}",
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| 201 | 'type' => "string",
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| 202 | 'deft' => "",
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| 203 | 'reqd' => "no" },
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| 204 | { 'name' => "minimumsize",
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| 205 | 'desc' => "{ImagePlug.minimumsize}",
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| 206 | 'type' => "int",
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| 207 | 'deft' => "100",
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| 208 | 'range' => "1,",
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| 209 | 'reqd' => "no" },
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| 210 | { 'name' => "headerpage",
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| 211 | 'desc' => "{PagedImgPlug.headerpage}",
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| 212 | 'type' => "flag",
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| 213 | 'reqd' => "no" },
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| 214 | { 'name' => "documenttype",
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| 215 | 'desc' => "{PagedImgPlug.documenttype}",
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| 216 | 'type' => "enum",
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| 217 | 'list' => $type_list,
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| 218 | 'deft' => "paged",
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| 219 | 'reqd' => "no" } ];
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| 220 |
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| 221 |
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| 222 | my $options = { 'name' => "PagedImgPlug",
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| 223 | 'desc' => "{PagedImgPlug.desc}",
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| 224 | 'inherits' => "yes",
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| 225 | 'args' => $arguments };
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| 226 |
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| 227 | sub new {
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| 228 | my ($class) = shift (@_);
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| 229 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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| 230 | push(@$pluginlist, $class);
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| 231 |
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| 232 | if(defined $arguments){ push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});}
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| 233 | if(defined $options) { push(@{$hashArgOptLists->{"OptList"}},$options)};
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| 234 |
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| 235 | my $self = (defined $hashArgOptLists)? new XMLPlug($pluginlist,$inputargs,$hashArgOptLists): new XMLPlug($pluginlist,$inputargs);
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| 236 |
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| 237 | return bless $self, $class;
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| 238 | }
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| 239 |
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| 240 | sub get_default_process_exp {
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| 241 | my $self = shift (@_);
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| 242 |
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| 243 | return q^\.item$^;
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| 244 | }
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| 245 |
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| 246 | # want to block everything except the .item ones
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| 247 | # but instead we will block images and txt files
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| 248 | sub get_default_block_exp {
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| 249 | my $self = shift (@_);
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| 250 |
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| 251 | return q^(?i)(\.jpe?g|\.gif|\.png|\.tif?f|\.te?xt|~)$^
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| 252 | }
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| 253 |
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| 254 | # Create the thumbnail and screenview images, and discover the Image's
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| 255 | # size, width, and height using the convert utility.
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| 256 | sub process_image {
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| 257 | my $self = shift (@_);
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| 258 | my $filename = shift (@_); # filename with full path
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| 259 | my $srcfile = shift (@_); # filename without path
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| 260 | my $doc_obj = shift (@_);
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| 261 | my $section = shift (@_); #the current section
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| 262 | my $rotate = shift (@_); # whether to rotate the image or not
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| 263 | $rotate = 0 unless defined $rotate;
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| 264 |
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| 265 | my $top=0;
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| 266 | if ($section eq $doc_obj->get_top_section()) {
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| 267 | $top=1;
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| 268 | }
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| 269 | my $verbosity = $self->{'verbosity'};
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| 270 | my $outhandle = $self->{'outhandle'};
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| 271 |
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| 272 | # check the filename is okay
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| 273 | return 0 if ($srcfile eq "" || $filename eq "");
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| 274 |
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| 275 | my $minimumsize = $self->{'minimumsize'};
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| 276 | if (defined $minimumsize && (-s $filename < $minimumsize)) {
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| 277 | print $outhandle "PagedImgPlug: \"$filename\" too small, skipping\n"
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| 278 | if ($verbosity > 1);
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| 279 | }
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| 280 |
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| 281 | # Convert the image to a new type (if required), and rotate if required.
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| 282 | my $converttotype = $self->{'converttotype'};
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| 283 | my $originalfilename = ""; # only set if we do a conversion
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| 284 | my $type = "unknown";
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| 285 | my $converted = 0;
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| 286 | my $rotated=0;
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| 287 |
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| 288 | if ($converttotype ne "" && $filename !~ /$converttotype$/) {
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| 289 | $converted=1;
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| 290 | $originalfilename = $filename;
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| 291 | my $filehead = &util::get_tmp_filename();
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| 292 | $filename = $filehead . ".$converttotype";
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| 293 | my $n = 1;
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| 294 | while (-e $filename) {
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| 295 | $filename = "$filehead$n\.$converttotype";
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| 296 | $n++;
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| 297 | }
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| 298 | $self->{'tmp_filename1'} = $filename;
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| 299 |
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| 300 | my $rotate_option = "";
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| 301 | if ($rotate eq "r") {
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| 302 | $rotate_option = "-rotate 180 ";
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| 303 | }
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| 304 |
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| 305 | my $command = "convert -verbose \"$originalfilename\" $rotate_option \"$filename\"";
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| 306 | print $outhandle "CONVERT: $command\n" if ($verbosity > 2);
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| 307 | my $result = '';
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| 308 | $result = `$command`;
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| 309 | print $outhandle "CONVERT RESULT = $result\n" if ($verbosity > 2);
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| 310 |
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| 311 | $type = $converttotype;
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| 312 | } elsif ($rotate eq "r") {
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| 313 | $rotated=1;
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| 314 | $originalfilename = $filename;
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| 315 | $filename = &util::get_tmp_filename();
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| 316 |
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| 317 | my $command = "convert \"$originalfilename\" -rotate 180 \"$filename\"";
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| 318 | print $outhandle "ROTATE: $command\n" if ($verbosity > 2);
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| 319 | my $result = '';
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| 320 | $result = `$command`;
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| 321 | print $outhandle "ROTATE RESULT = $result\n" if ($verbosity > 2);
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| 322 |
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| 323 | }
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| 324 |
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| 325 |
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| 326 | # Add the image metadata
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| 327 | my $file; # the new file name
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| 328 | my $id = $srcfile;
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| 329 | $id =~ s/\.([^\.]*)$//; # the new file name without an extension
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| 330 | if ($converted) {
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| 331 | # we have converted the image
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| 332 | # add on the new extension
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| 333 | $file .= "$id.$converttotype";
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| 334 | } else {
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| 335 | $file = $srcfile;
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| 336 | }
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| 337 |
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| 338 | my $url =$file; # the new file name prepared for a url
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| 339 | my $srcurl = $srcfile;
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| 340 | $url =~ s/ /%20/g;
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| 341 | $srcurl =~ s/ /%20/g;
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| 342 |
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| 343 | $doc_obj->add_metadata ($section, "Image", $url);
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| 344 |
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| 345 | # Also want to set filename as 'Source' metadata to be
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| 346 | # consistent with other plugins
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| 347 | $doc_obj->add_metadata ($section, "Source", $srcurl);
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| 348 |
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| 349 | my ($image_type, $image_width, $image_height, $image_size)
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| 350 | = &identify($filename, $outhandle, $verbosity);
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| 351 |
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| 352 | $doc_obj->add_metadata ($section, "ImageType", $image_type);
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| 353 | $doc_obj->add_metadata ($section, "ImageWidth", $image_width);
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| 354 | $doc_obj->add_metadata ($section, "ImageHeight", $image_height);
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| 355 | $doc_obj->add_metadata ($section, "ImageSize", $image_size);
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| 356 | $doc_obj->add_metadata ($section, "FileFormat", "PagedImg");
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| 357 |
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| 358 | if ($type eq "unknown" && $image_type) {
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| 359 | $type = $image_type;
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| 360 | }
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| 361 |
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| 362 | if ($top) {
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| 363 | $doc_obj->add_metadata ($section, "srclink",
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| 364 | "<a href=\"_httpcollection_/index/assoc/[assocfilepath]/[Image]\">");
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| 365 | $doc_obj->add_metadata ($section, "srcicon", "<img src=\"_httpcollection_/index/assoc/[assocfilepath]/[Image]\">");
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| 366 |
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| 367 | } else {
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| 368 | $doc_obj->add_metadata ($section, "srclink",
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| 369 | "<a href=\"_httpcollection_/index/assoc/[parent(Top):assocfilepath]/[Image]\">");
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| 370 | $doc_obj->add_metadata ($section, "srcicon", "<img src=\"_httpcollection_/index/assoc/[parent(Top):assocfilepath]/[Image]\">");
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| 371 |
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| 372 | }
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| 373 | $doc_obj->add_metadata ($section, "/srclink", "</a>");
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| 374 |
|
|---|
| 375 |
|
|---|
| 376 | # Add the image as an associated file
|
|---|
| 377 | $doc_obj->associate_file($filename,$file,"image/$type",$section);
|
|---|
| 378 | print $outhandle "associating file $filename as name $file\n" if ($verbosity > 2);
|
|---|
| 379 |
|
|---|
| 380 | if ($self->{'thumbnail'}) {
|
|---|
| 381 | # Make the thumbnail image
|
|---|
| 382 | my $thumbnailsize = $self->{'thumbnailsize'} || 100;
|
|---|
| 383 | my $thumbnailtype = $self->{'thumbnailtype'} || 'gif';
|
|---|
| 384 |
|
|---|
| 385 | my $filehead = &util::get_tmp_filename();
|
|---|
| 386 | my $thumbnailfile = $filehead . ".$thumbnailtype";
|
|---|
| 387 | my $n=1;
|
|---|
| 388 | while (-e $thumbnailfile) {
|
|---|
| 389 | $thumbnailfile = $filehead . $n . ".$thumbnailtype";
|
|---|
| 390 | $n++;
|
|---|
| 391 | }
|
|---|
| 392 |
|
|---|
| 393 | $self->{'tmp_filename2'} = $thumbnailfile;
|
|---|
| 394 |
|
|---|
| 395 | # Generate the thumbnail with convert
|
|---|
| 396 | my $command = "convert -verbose -geometry $thumbnailsize"
|
|---|
| 397 | . "x$thumbnailsize \"$filename\" \"$thumbnailfile\"";
|
|---|
| 398 | print $outhandle "THUMBNAIL: $command\n" if ($verbosity > 2);
|
|---|
| 399 | my $result = '';
|
|---|
| 400 | $result = `$command 2>&1` ;
|
|---|
| 401 | print $outhandle "THUMB RESULT: $result\n" if ($verbosity > 2);
|
|---|
| 402 |
|
|---|
| 403 | # Add the thumbnail as an associated file ...
|
|---|
| 404 | if (-e "$thumbnailfile") {
|
|---|
| 405 | $doc_obj->associate_file("$thumbnailfile", $id."thumb.$thumbnailtype", "image/$thumbnailtype",$section);
|
|---|
| 406 | $doc_obj->add_metadata ($section, "ThumbType", $thumbnailtype);
|
|---|
| 407 | $doc_obj->add_metadata ($section, "Thumb", $id."thumb.$thumbnailtype");
|
|---|
| 408 | if ($top) {
|
|---|
| 409 | $doc_obj->add_metadata ($section, "thumbicon", "<img src=\"_httpcollection_/index/assoc/[assocfilepath]/[Thumb]\" width=[ThumbWidth] height=[ThumbHeight]>");
|
|---|
| 410 | } else {
|
|---|
| 411 | $doc_obj->add_metadata ($section, "thumbicon", "<img src=\"_httpcollection_/index/assoc/[parent(Top):assocfilepath]/[Thumb]\" width=[ThumbWidth] height=[ThumbHeight]>");
|
|---|
| 412 | }
|
|---|
| 413 | }
|
|---|
| 414 |
|
|---|
| 415 | # Extract Thumnail metadata from convert output
|
|---|
| 416 | if ($result =~ m/[0-9]+x[0-9]+=>([0-9]+)x([0-9]+)/) {
|
|---|
| 417 | $doc_obj->add_metadata ($section, "ThumbWidth", $1);
|
|---|
| 418 | $doc_obj->add_metadata ($section, "ThumbHeight", $2);
|
|---|
| 419 | }
|
|---|
| 420 | }
|
|---|
| 421 | # Make a screen-sized version of the picture if requested
|
|---|
| 422 | if ($self->{'screenview'}) {
|
|---|
| 423 |
|
|---|
| 424 | # To do: if the actual image is smaller than the screenview size,
|
|---|
| 425 | # we should use the original !
|
|---|
| 426 |
|
|---|
| 427 | my $screenviewsize = $self->{'screenviewsize'} || 500;
|
|---|
| 428 | my $screenviewtype = $self->{'screenviewtype'} || 'jpeg';
|
|---|
| 429 | my $filehead = &util::get_tmp_filename();
|
|---|
| 430 | my $screenviewfilename = $filehead . ".$screenviewtype";
|
|---|
| 431 | my $n=1;
|
|---|
| 432 | while (-e $screenviewfilename) {
|
|---|
| 433 | $screenviewfilename = "$filehead$n\.$screenviewtype";
|
|---|
| 434 | $n++;
|
|---|
| 435 | }
|
|---|
| 436 | $self->{'tmp_filename3'} = $screenviewfilename;
|
|---|
| 437 |
|
|---|
| 438 | # make the screenview image
|
|---|
| 439 | my $command = "convert -verbose -geometry $screenviewsize"
|
|---|
| 440 | . "x$screenviewsize \"$filename\" \"$screenviewfilename\"";
|
|---|
| 441 | print $outhandle "SCREENVIEW: $command\n" if ($verbosity > 2);
|
|---|
| 442 | my $result = "";
|
|---|
| 443 | $result = `$command 2>&1` ;
|
|---|
| 444 | print $outhandle "SCREENVIEW RESULT: $result\n" if ($verbosity > 3);
|
|---|
| 445 |
|
|---|
| 446 | # get screenview dimensions, size and type
|
|---|
| 447 | if ($result =~ m/[0-9]+x[0-9]+=>([0-9]+)x([0-9]+)/) {
|
|---|
| 448 | $doc_obj->add_metadata ($section, "ScreenWidth", $1);
|
|---|
| 449 | $doc_obj->add_metadata ($section, "ScreenHeight", $2);
|
|---|
| 450 | }elsif ($result =~ m/([0-9]+)x([0-9]+)/) {
|
|---|
| 451 | #if the image hasn't changed size, the previous regex doesn't match
|
|---|
| 452 | $doc_obj->add_metadata ($section, "ScreenWidth", $1);
|
|---|
| 453 | $doc_obj->add_metadata ($section, "ScreenHeight", $2);
|
|---|
| 454 | }
|
|---|
| 455 |
|
|---|
| 456 | #add the screenview as an associated file ...
|
|---|
| 457 | if (-e "$screenviewfilename") {
|
|---|
| 458 | $doc_obj->associate_file("$screenviewfilename", $id."sv.$screenviewtype",
|
|---|
| 459 | "image/$screenviewtype",$section);
|
|---|
| 460 | print $outhandle "associating screen file $screenviewfilename as name $id sv.$screenviewtype\n" if ($verbosity > 2);
|
|---|
| 461 |
|
|---|
| 462 | $doc_obj->add_metadata ($section, "ScreenType", $screenviewtype);
|
|---|
| 463 | $doc_obj->add_metadata ($section, "Screen", $id."sv.$screenviewtype");
|
|---|
| 464 |
|
|---|
| 465 | if ($top) {
|
|---|
| 466 | $doc_obj->add_metadata ($section, "screenicon", "<img src=\"_httpcollection_/index/assoc/[assocfilepath]/[Screen]\" width=[ScreenWidth] height=[ScreenHeight]>");
|
|---|
| 467 | } else {
|
|---|
| 468 | $doc_obj->add_metadata ($section, "screenicon", "<img src=\"_httpcollection_/index/assoc/[parent(Top):assocfilepath]/[Screen]\" width=[ScreenWidth] height=[ScreenHeight]>");
|
|---|
| 469 |
|
|---|
| 470 | }
|
|---|
| 471 | } else {
|
|---|
| 472 | print $outhandle "PagedImgPlug: couldn't find \"$screenviewfilename\"\n";
|
|---|
| 473 | }
|
|---|
| 474 | }
|
|---|
| 475 |
|
|---|
| 476 | return $type;
|
|---|
| 477 |
|
|---|
| 478 |
|
|---|
| 479 | }
|
|---|
| 480 |
|
|---|
| 481 |
|
|---|
| 482 |
|
|---|
| 483 | # Discover the characteristics of an image file with the ImageMagick
|
|---|
| 484 | # "identify" command.
|
|---|
| 485 |
|
|---|
| 486 | sub identify {
|
|---|
| 487 | my ($image, $outhandle, $verbosity) = @_;
|
|---|
| 488 |
|
|---|
| 489 | # Use the ImageMagick "identify" command to get the file specs
|
|---|
| 490 | my $command = "identify \"$image\" 2>&1";
|
|---|
| 491 | print $outhandle "$command\n" if ($verbosity > 2);
|
|---|
| 492 | my $result = '';
|
|---|
| 493 | $result = `$command`;
|
|---|
| 494 | print $outhandle "$result\n" if ($verbosity > 3);
|
|---|
| 495 |
|
|---|
| 496 | # Read the type, width, and height
|
|---|
| 497 | my $type = 'unknown';
|
|---|
| 498 | my $width = 'unknown';
|
|---|
| 499 | my $height = 'unknown';
|
|---|
| 500 |
|
|---|
| 501 | my $image_safe = quotemeta $image;
|
|---|
| 502 | if ($result =~ /^$image_safe (\w+) (\d+)x(\d+)/) {
|
|---|
| 503 | $type = $1;
|
|---|
| 504 | $width = $2;
|
|---|
| 505 | $height = $3;
|
|---|
| 506 | }
|
|---|
| 507 |
|
|---|
| 508 | # Read the size
|
|---|
| 509 | my $size = "unknown";
|
|---|
| 510 | if ($result =~ m/^.* ([0-9]+)b/) {
|
|---|
| 511 | $size = $1;
|
|---|
| 512 | } elsif ($result =~ m/^.* ([0-9]+)kb/) {
|
|---|
| 513 | $size = 1024 * $1;
|
|---|
| 514 | }
|
|---|
| 515 |
|
|---|
| 516 | print $outhandle "file: $image:\t $type, $width, $height, $size\n"
|
|---|
| 517 | if ($verbosity > 3);
|
|---|
| 518 |
|
|---|
| 519 | # Return the specs
|
|---|
| 520 | return ($type, $width, $height, $size);
|
|---|
| 521 | }
|
|---|
| 522 |
|
|---|
| 523 |
|
|---|
| 524 | # The PagedImgPlug read() function. This function does all the right things
|
|---|
| 525 | # to make general options work for a given plugin. It calls the process()
|
|---|
| 526 | # function which does all the work specific to a plugin (like the old
|
|---|
| 527 | # read functions used to do). Most plugins should define their own
|
|---|
| 528 | # process() function and let this read() function keep control.
|
|---|
| 529 | #
|
|---|
| 530 | # PagedImgPlug overrides read() because there is no need to read the actual
|
|---|
| 531 | # text of the file in, because the contents of the file is not text...
|
|---|
| 532 | #
|
|---|
| 533 | # Return number of files processed, undef if can't process
|
|---|
| 534 | # Note that $base_dir might be "" and that $file might
|
|---|
| 535 | # include directories
|
|---|
| 536 |
|
|---|
| 537 | sub read_into_doc_obj {
|
|---|
| 538 | my $self = shift (@_);
|
|---|
| 539 | my ($pluginfo, $base_dir, $file, $metadata, $processor, $maxdocs, $total_count, $gli) = @_;
|
|---|
| 540 | my $outhandle = $self->{'outhandle'};
|
|---|
| 541 | my $smart_block = $self->{'smart_block'};
|
|---|
| 542 |
|
|---|
| 543 | my $filename = &util::filename_cat($base_dir, $file);
|
|---|
| 544 |
|
|---|
| 545 | if ($self->associate_with($file,$filename,$metadata)) {
|
|---|
| 546 | # a form of smart block
|
|---|
| 547 | $self->{'num_blocked'} ++;
|
|---|
| 548 | return 0; # blocked
|
|---|
| 549 | }
|
|---|
| 550 |
|
|---|
| 551 | if ($smart_block) {
|
|---|
| 552 | if (defined $self->{'file_blocks'}->{$filename} && $self->{'file_blocks'}->{$filename} == 1){
|
|---|
| 553 | $self->{'num_blocked'} ++;
|
|---|
| 554 | return 0; # blocked
|
|---|
| 555 | }
|
|---|
| 556 | } elsif ($self->{'block_exp'} ne "" && $filename =~ /$self->{'block_exp'}/) {
|
|---|
| 557 | $self->{'num_blocked'} ++;
|
|---|
| 558 | return 0; # blocked
|
|---|
| 559 | }
|
|---|
| 560 |
|
|---|
| 561 | if ($filename !~ /$self->{'process_exp'}/ || !-f $filename) {
|
|---|
| 562 | return undef;
|
|---|
| 563 | }
|
|---|
| 564 |
|
|---|
| 565 | print $outhandle "PagedImgPlug processing \"$filename\"\n"
|
|---|
| 566 | if $self->{'verbosity'} > 1;
|
|---|
| 567 | print STDERR "<Processing n='$file' p='PagedImgPlug'>\n" if ($gli);
|
|---|
| 568 |
|
|---|
| 569 | # here we need to decide if we have an old text .item file, or a new xml
|
|---|
| 570 | # .item file - for now the test is if the first non-empty line is
|
|---|
| 571 | # <PagedDocument> then its xml
|
|---|
| 572 | my $xml_version = 0;
|
|---|
| 573 | open (ITEMFILE, $filename) || die "couldn't open $filename\n";
|
|---|
| 574 |
|
|---|
| 575 | my $backup_filename = "backup.item";
|
|---|
| 576 | open (BACKUP,">$backup_filename")|| die "couldn't write to $backup_filename\n";
|
|---|
| 577 | my $line = "";
|
|---|
| 578 | my $num = 0;
|
|---|
| 579 | $line = <ITEMFILE>;
|
|---|
| 580 | while ($line !~ /\w/) {
|
|---|
| 581 | $line = <ITEMFILE>;
|
|---|
| 582 | }
|
|---|
| 583 | chomp $line;
|
|---|
| 584 | if ($line =~ /<PagedDocument/) {
|
|---|
| 585 | $xml_version = 1;
|
|---|
| 586 | }
|
|---|
| 587 | close ITEMFILE;
|
|---|
| 588 | open (ITEMFILE, $filename) || die "couldn't open $filename\n";
|
|---|
| 589 | #Tidy up the item file some metadata title contains \vt-vertical tab
|
|---|
| 590 | while ($line = <ITEMFILE>) {
|
|---|
| 591 | $line =~ s/\x0B+//ig;
|
|---|
| 592 | $line =~ s/&/&/g;
|
|---|
| 593 | print BACKUP ($line);
|
|---|
| 594 | }
|
|---|
| 595 | close ITEMFILE;
|
|---|
| 596 | close BACKUP;
|
|---|
| 597 | &File::Copy::copy ($backup_filename, $filename);
|
|---|
| 598 | &util::rm($backup_filename);
|
|---|
| 599 | #print STDERR "xml version = $xml_version\n";
|
|---|
| 600 | my $doc_obj;
|
|---|
| 601 | if ($xml_version) {
|
|---|
| 602 | $file =~ s/^[\/\\]+//; # $file often begins with / so we'll tidy it up
|
|---|
| 603 | $self->{'file'} = $file;
|
|---|
| 604 | $self->{'filename'} = $filename;
|
|---|
| 605 | $self->{'processor'} = $processor;
|
|---|
| 606 | $self->{'metadata'} = $metadata;
|
|---|
| 607 | $self->{'gli'} = $gli;
|
|---|
| 608 | eval {
|
|---|
| 609 | $@ = "";
|
|---|
| 610 | my $xslt = $self->{'xslt'};
|
|---|
| 611 | if (defined $xslt && ($xslt ne "")) {
|
|---|
| 612 | # perform xslt
|
|---|
| 613 | my $transformed_xml = $self->apply_xslt($xslt,$filename);
|
|---|
| 614 |
|
|---|
| 615 | # feed transformed file (now in memory as string) into XML parser
|
|---|
| 616 | #$self->{'parser'}->parse($transformed_xml);
|
|---|
| 617 | $self->parse_string($transformed_xml);
|
|---|
| 618 | }
|
|---|
| 619 | else {
|
|---|
| 620 | #$self->{'parser'}->parsefile($filename);
|
|---|
| 621 | $self->parse_file($filename);
|
|---|
| 622 | }
|
|---|
| 623 | };
|
|---|
| 624 |
|
|---|
| 625 |
|
|---|
| 626 |
|
|---|
| 627 | if ($@) {
|
|---|
| 628 |
|
|---|
| 629 | # parsefile may either croak somewhere in XML::Parser (e.g. because
|
|---|
| 630 | # the document is not well formed) or die somewhere in XMLPlug or a
|
|---|
| 631 | # derived plugin (e.g. because we're attempting to process a
|
|---|
| 632 | # document whose DOCTYPE is not meant for this plugin). For the
|
|---|
| 633 | # first case we'll print a warning and continue, for the second
|
|---|
| 634 | # we'll just continue quietly
|
|---|
| 635 |
|
|---|
| 636 | print STDERR "**** XML Parse Error is: $@\n";
|
|---|
| 637 |
|
|---|
| 638 | my ($msg) = $@ =~ /Carp::croak\(\'(.*?)\'\)/;
|
|---|
| 639 | if (defined $msg) {
|
|---|
| 640 | my $outhandle = $self->{'outhandle'};
|
|---|
| 641 | my $plugin_name = ref ($self);
|
|---|
| 642 | print $outhandle "$plugin_name failed to process $file ($msg)\n";
|
|---|
| 643 | }
|
|---|
| 644 |
|
|---|
| 645 | # reset ourself for the next document
|
|---|
| 646 | $self->{'section_level'}=0;
|
|---|
| 647 | print STDERR "<ProcessingError n='$file'>\n" if ($gli);
|
|---|
| 648 | return -1; # error during processing
|
|---|
| 649 | }
|
|---|
| 650 | $doc_obj = $self->{'doc_obj'};
|
|---|
| 651 | } else {
|
|---|
| 652 | my ($dir);
|
|---|
| 653 | ($dir, $file) = $filename =~ /^(.*?)([^\/\\]*)$/;
|
|---|
| 654 |
|
|---|
| 655 | #process the .item file
|
|---|
| 656 | $doc_obj = $self->process_item($filename, $dir, $file, $processor);
|
|---|
| 657 |
|
|---|
| 658 | }
|
|---|
| 659 |
|
|---|
| 660 | if ($self->{'cover_image'}) {
|
|---|
| 661 | $self->associate_cover_image($doc_obj, $filename);
|
|---|
| 662 | }
|
|---|
| 663 |
|
|---|
| 664 | # include any metadata passed in from previous plugins
|
|---|
| 665 | # note that this metadata is associated with the top level section
|
|---|
| 666 | my $section = $doc_obj->get_top_section();
|
|---|
| 667 | $self->extra_metadata ($doc_obj, $section, $metadata);
|
|---|
| 668 | #my $text="";
|
|---|
| 669 | # do plugin specific processing of doc_obj
|
|---|
| 670 | #unless (defined ($self->process(\$text, $pluginfo, $base_dir, $file, $metadata, $doc_obj))) {
|
|---|
| 671 | #print STDERR "<ProcessingError n='$file'>\n" if ($gli);
|
|---|
| 672 | #return -1;
|
|---|
| 673 | #}
|
|---|
| 674 | # do any automatic metadata extraction
|
|---|
| 675 | $self->auto_extract_metadata ($doc_obj);
|
|---|
| 676 |
|
|---|
| 677 | $self->{'num_processed'}++;
|
|---|
| 678 | return (1,$doc_obj);
|
|---|
| 679 | }
|
|---|
| 680 |
|
|---|
| 681 | sub read
|
|---|
| 682 | {
|
|---|
| 683 | my $self = shift (@_);
|
|---|
| 684 | my ($pluginfo, $base_dir, $file, $metadata, $processor, $maxdocs, $total_count, $gli) = @_;
|
|---|
| 685 |
|
|---|
| 686 | my ($process_status,$doc_obj) = $self->read_into_doc_obj(@_);
|
|---|
| 687 |
|
|---|
| 688 | if ((defined $process_status) && ($process_status == 1)) {
|
|---|
| 689 | # process the document
|
|---|
| 690 | $processor->process($doc_obj);
|
|---|
| 691 |
|
|---|
| 692 | #if(defined($self->{'places_filename'})){
|
|---|
| 693 | # &util::rm($self->{'places_filename'});
|
|---|
| 694 | # $self->{'places_filename'} = undef;
|
|---|
| 695 | #}
|
|---|
| 696 | #$self->{'num_processed'} ++;
|
|---|
| 697 | undef $doc_obj;
|
|---|
| 698 | }
|
|---|
| 699 |
|
|---|
| 700 | # clean up temporary files - we do this here instead of in
|
|---|
| 701 | # process_image becuase associated files aren't actually copied
|
|---|
| 702 | # until after process has been run.
|
|---|
| 703 | if (defined $self->{'tmp_filename1'} &&
|
|---|
| 704 | -e $self->{'tmp_filename1'}) {
|
|---|
| 705 | &util::rm($self->{'tmp_filename1'})
|
|---|
| 706 | }
|
|---|
| 707 | if (defined $self->{'tmp_filename2'} &&
|
|---|
| 708 | -e $self->{'tmp_filename2'}) {
|
|---|
| 709 | &util::rm($self->{'tmp_filename2'})
|
|---|
| 710 | }
|
|---|
| 711 | if (defined $self->{'tmp_filename3'} &&
|
|---|
| 712 | -e $self->{'tmp_filename3'}) {
|
|---|
| 713 | &util::rm($self->{'tmp_filename3'})
|
|---|
| 714 | }
|
|---|
| 715 | # if process_status == 1, then the file has been processed.
|
|---|
| 716 | return $process_status;
|
|---|
| 717 | }
|
|---|
| 718 |
|
|---|
| 719 | sub xml_start_tag {
|
|---|
| 720 | my $self = shift(@_);
|
|---|
| 721 | my ($expat, $element) = @_;
|
|---|
| 722 | $self->{'element'} = $element;
|
|---|
| 723 |
|
|---|
| 724 | my $doc_obj = $self->{'doc_obj'};
|
|---|
| 725 | if ($element eq "PagedDocument") {
|
|---|
| 726 | $self->{'current_section'} = $doc_obj->get_top_section();
|
|---|
| 727 | } elsif ($element eq "PageGroup" || $element eq "Page") {
|
|---|
| 728 | # create a new section as a child
|
|---|
| 729 | $self->{'current_section'} = $doc_obj->insert_section($doc_obj->get_end_child($self->{'current_section'}));
|
|---|
| 730 | $self->{'num_pages'}++;
|
|---|
| 731 | # assign pagenum as what??
|
|---|
| 732 | my $pagenum = $_{'pagenum'}; #TODO!!
|
|---|
| 733 | $doc_obj->set_utf8_metadata_element($self->{'current_section'}, 'PageNum', $pagenum);
|
|---|
| 734 | my ($imgfile) = $_{'imgfile'};
|
|---|
| 735 | if (defined $imgfile) {
|
|---|
| 736 | $self->process_image($self->{'base_dir'}.$imgfile, $imgfile, $doc_obj, $self->{'current_section'});
|
|---|
| 737 | }
|
|---|
| 738 | my ($txtfile) = $_{'txtfile'};
|
|---|
| 739 | if (defined($txtfile)&& $txtfile ne "") {
|
|---|
| 740 | $self->process_text ($self->{'base_dir'}.$txtfile, $txtfile, $doc_obj, $self->{'current_section'});
|
|---|
| 741 | } else {
|
|---|
| 742 | # otherwise add in some dummy text
|
|---|
| 743 | $doc_obj->add_text($self->{'current_section'}, &gsprintf::lookup_string("{BasPlug.dummy_text}"));
|
|---|
| 744 | }
|
|---|
| 745 | } elsif ($element eq "Metadata") {
|
|---|
| 746 | $self->{'metadata_name'} = $_{'name'};
|
|---|
| 747 | }
|
|---|
| 748 | }
|
|---|
| 749 |
|
|---|
| 750 | sub xml_end_tag {
|
|---|
| 751 | my $self = shift(@_);
|
|---|
| 752 | my ($expat, $element) = @_;
|
|---|
| 753 |
|
|---|
| 754 | my $doc_obj = $self->{'doc_obj'};
|
|---|
| 755 | if ($element eq "Page" || $element eq "PageGroup") {
|
|---|
| 756 | # if Title hasn't been assigned, set PageNum as Title
|
|---|
| 757 | if (!defined $doc_obj->get_metadata_element ($self->{'current_section'}, "Title") && defined $doc_obj->get_metadata_element ($self->{'current_section'}, "PageNum" )) {
|
|---|
| 758 | $doc_obj->add_utf8_metadata ($self->{'current_section'}, "Title", $doc_obj->get_metadata_element ($self->{'current_section'}, "PageNum" ));
|
|---|
| 759 | }
|
|---|
| 760 | # move the current section back to the parent
|
|---|
| 761 | $self->{'current_section'} = $doc_obj->get_parent_section($self->{'current_section'});
|
|---|
| 762 | } elsif ($element eq "Metadata") {
|
|---|
| 763 |
|
|---|
| 764 | $doc_obj->add_utf8_metadata ($self->{'current_section'}, $self->{'metadata_name'}, $self->{'metadata_value'});
|
|---|
| 765 | $self->{'metadata_name'} = "";
|
|---|
| 766 | $self->{'metadata_value'} = "";
|
|---|
| 767 |
|
|---|
| 768 | }
|
|---|
| 769 | # otherwise we ignore the end tag
|
|---|
| 770 | }
|
|---|
| 771 |
|
|---|
| 772 |
|
|---|
| 773 | sub xml_text {
|
|---|
| 774 | my $self = shift(@_);
|
|---|
| 775 | my ($expat) = @_;
|
|---|
| 776 |
|
|---|
| 777 | if ($self->{'element'} eq "Metadata") {
|
|---|
| 778 | $self->{'metadata_value'} .= $_;
|
|---|
| 779 | }
|
|---|
| 780 | }
|
|---|
| 781 |
|
|---|
| 782 | sub xml_doctype {
|
|---|
| 783 | }
|
|---|
| 784 |
|
|---|
| 785 | sub open_document {
|
|---|
| 786 | my $self = shift(@_);
|
|---|
| 787 |
|
|---|
| 788 | # create a new document
|
|---|
| 789 | $self->{'doc_obj'} = new doc ($self->{'filename'}, "indexed_doc");
|
|---|
| 790 | my $doc_obj = $self->{'doc_obj'};
|
|---|
| 791 | $doc_obj->set_OIDtype ($self->{'processor'}->{'OIDtype'});
|
|---|
| 792 | my ($dir, $file) = $self->{'filename'} =~ /^(.*?)([^\/\\]*)$/;
|
|---|
| 793 | $self->{'base_dir'} = $dir;
|
|---|
| 794 | $self->{'num_pages'} = 0;
|
|---|
| 795 | my $topsection = $doc_obj->get_top_section();
|
|---|
| 796 | if ($self->{'documenttype'} eq 'paged') {
|
|---|
| 797 | # set the gsdlthistype metadata to Paged - this ensures this document will
|
|---|
| 798 | # be treated as a Paged doc, even if Titles are not numeric
|
|---|
| 799 |
|
|---|
| 800 | $doc_obj->set_utf8_metadata_element ($topsection, "gsdlthistype", "Paged");
|
|---|
| 801 | } else {
|
|---|
| 802 | $doc_obj->set_utf8_metadata_element ($topsection, "gsdlthistype", "Hierarchy");
|
|---|
| 803 | }
|
|---|
| 804 |
|
|---|
| 805 | $doc_obj->add_metadata ($topsection, "Source", $file);
|
|---|
| 806 | if ($self->{'headerpage'}) {
|
|---|
| 807 | $doc_obj->add_text($topsection, &gsprintf::lookup_string("{BasPlug.dummy_text}"));
|
|---|
| 808 | }
|
|---|
| 809 |
|
|---|
| 810 | }
|
|---|
| 811 |
|
|---|
| 812 | sub close_document {
|
|---|
| 813 | my $self = shift(@_);
|
|---|
| 814 | my $doc_obj = $self->{'doc_obj'};
|
|---|
| 815 |
|
|---|
| 816 | $doc_obj->add_utf8_metadata($doc_obj->get_top_section(), "Plugin", "$self->{'plugin_type'}");
|
|---|
| 817 | $doc_obj->add_metadata($doc_obj->get_top_section(), "FileFormat", "PagedImg");
|
|---|
| 818 |
|
|---|
| 819 | # add numpages metadata
|
|---|
| 820 | $doc_obj->set_utf8_metadata_element ($doc_obj->get_top_section(), 'NumPages', $self->{'num_pages'});
|
|---|
| 821 |
|
|---|
| 822 | # add an OID
|
|---|
| 823 | $doc_obj->set_OID();
|
|---|
| 824 |
|
|---|
| 825 | }
|
|---|
| 826 |
|
|---|
| 827 | sub process_item {
|
|---|
| 828 | my $self = shift (@_);
|
|---|
| 829 | my ($filename, $dir, $file, $processor) = @_;
|
|---|
| 830 |
|
|---|
| 831 | my $doc_obj = new doc ($filename, "indexed_doc");
|
|---|
| 832 | $doc_obj->set_OIDtype ($processor->{'OIDtype'});
|
|---|
| 833 | my $topsection = $doc_obj->get_top_section();
|
|---|
| 834 |
|
|---|
| 835 | if ($self->{'documenttype'} eq 'paged') {
|
|---|
| 836 | # set the gsdlthistype metadata to Paged - this ensures this document will
|
|---|
| 837 | # be treated as a Paged doc, even if Titles are not numeric
|
|---|
| 838 | $doc_obj->set_utf8_metadata_element ($topsection, "gsdlthistype", "Paged");
|
|---|
| 839 | } else {
|
|---|
| 840 | $doc_obj->set_utf8_metadata_element ($topsection, "gsdlthistype", "Hierarchy");
|
|---|
| 841 | }
|
|---|
| 842 |
|
|---|
| 843 | $doc_obj->add_metadata ($topsection, "Source", $file);
|
|---|
| 844 |
|
|---|
| 845 | open (ITEMFILE, $filename) || die "couldn't open $filename\n";
|
|---|
| 846 | my $line = "";
|
|---|
| 847 | my $num = 0;
|
|---|
| 848 | while (defined ($line = <ITEMFILE>)) {
|
|---|
| 849 | next unless $line =~ /\w/;
|
|---|
| 850 | chomp $line;
|
|---|
| 851 | if ($line =~ /^<([^>]*)>\s*(.*?)\s*$/) {
|
|---|
| 852 | $doc_obj->set_utf8_metadata_element ($topsection, $1, $2);
|
|---|
| 853 | #$meta->{$1} = $2;
|
|---|
| 854 | } else {
|
|---|
| 855 | $num++;
|
|---|
| 856 | # line should be like page:imagefilename:textfilename:r - the r is optional -> means rotate the image 180 deg
|
|---|
| 857 | $line =~ s/^\s+//; #remove space at the front
|
|---|
| 858 | $line =~ s/\s+$//; #remove space at the end
|
|---|
| 859 | my ($pagenum, $imgname, $txtname, $rotate) = split /:/, $line;
|
|---|
| 860 |
|
|---|
| 861 | # create a new section for each image file
|
|---|
| 862 | my $cursection = $doc_obj->insert_section($doc_obj->get_end_child($topsection));
|
|---|
| 863 | # the page number becomes the Title
|
|---|
| 864 | $doc_obj->set_utf8_metadata_element($cursection, 'Title', $pagenum);
|
|---|
| 865 | # process the image for this page
|
|---|
| 866 | my $result = $self->process_image($dir.$imgname, $imgname, $doc_obj, $cursection, $rotate);
|
|---|
| 867 |
|
|---|
| 868 | if (!defined $result)
|
|---|
| 869 | {
|
|---|
| 870 | print "PagedImgPlug: couldn't process image \"$dir.$imgname\" for item \"$filename\"\n";
|
|---|
| 871 | }
|
|---|
| 872 |
|
|---|
| 873 | # process the text file if one is there
|
|---|
| 874 | if (defined $txtname && $txtname ne "") {
|
|---|
| 875 | $result = undef;
|
|---|
| 876 | $result = $self->process_text ($dir.$txtname, $txtname, $doc_obj, $cursection);
|
|---|
| 877 | if (!defined $result) {
|
|---|
| 878 | print "PagedImgPlug: couldn't process text file \"$dir.$txtname\" for item \"$filename\"\n";
|
|---|
| 879 | }
|
|---|
| 880 | } else {
|
|---|
| 881 | # otherwise add in some dummy text
|
|---|
| 882 | $doc_obj->add_text($cursection, &gsprintf::lookup_string("{BasPlug.dummy_text}"));
|
|---|
| 883 | }
|
|---|
| 884 | }
|
|---|
| 885 | }
|
|---|
| 886 |
|
|---|
| 887 | close ITEMFILE;
|
|---|
| 888 |
|
|---|
| 889 | # if we want a header page, we need to add some text into the top section, otherwise this section will become invisible
|
|---|
| 890 | if ($self->{'headerpage'}) {
|
|---|
| 891 | $doc_obj->add_text($topsection, &gsprintf::lookup_string("{BasPlug.dummy_text}"));
|
|---|
| 892 | }
|
|---|
| 893 | $file =~ s/\.item//i;
|
|---|
| 894 | $doc_obj->set_OID ();
|
|---|
| 895 | # add numpages metadata
|
|---|
| 896 | $doc_obj->set_utf8_metadata_element ($topsection, 'NumPages', "$num");
|
|---|
| 897 | return $doc_obj;
|
|---|
| 898 | }
|
|---|
| 899 |
|
|---|
| 900 | sub process_text {
|
|---|
| 901 | my $self = shift (@_);
|
|---|
| 902 | my ($fullpath, $file, $doc_obj, $cursection) = @_;
|
|---|
| 903 |
|
|---|
| 904 | # Do encoding stuff
|
|---|
| 905 | my ($language, $encoding) = $self->textcat_get_language_encoding ($fullpath);
|
|---|
| 906 |
|
|---|
| 907 | my $text="";
|
|---|
| 908 | &BasPlug::read_file($self, $fullpath, $encoding, $language, \$text);
|
|---|
| 909 | if (!length ($text)) {
|
|---|
| 910 | my $plugin_name = ref ($self);
|
|---|
| 911 | print "PagedImgPlug: ERROR: $fullpath contains no text\n" if $self->{'verbosity'};
|
|---|
| 912 | return 0;
|
|---|
| 913 | }
|
|---|
| 914 |
|
|---|
| 915 | # we need to escape the escape character, or else mg will convert into
|
|---|
| 916 | # eg literal newlines, instead of leaving the text as '\n'
|
|---|
| 917 | $text =~ s/\\/\\\\/g; # macro language
|
|---|
| 918 | $text =~ s/_/\\_/g; # macro language
|
|---|
| 919 | $text =~ s/</</g;
|
|---|
| 920 | $text =~ s/>/>/g;
|
|---|
| 921 |
|
|---|
| 922 | # insert preformat tags and add text to document object
|
|---|
| 923 | $doc_obj->add_utf8_text($cursection, "<pre>\n$text\n</pre>");
|
|---|
| 924 |
|
|---|
| 925 | return 1;
|
|---|
| 926 | }
|
|---|
| 927 |
|
|---|
| 928 | # do plugin specific processing of doc_obj
|
|---|
| 929 | sub process {
|
|---|
| 930 | my $self = shift (@_);
|
|---|
| 931 | my ($textref, $pluginfo, $base_dir, $file, $metadata, $doc_obj) = @_;
|
|---|
| 932 | my $outhandle = $self->{'outhandle'};
|
|---|
| 933 |
|
|---|
| 934 | return 1;
|
|---|
| 935 | }
|
|---|
| 936 |
|
|---|
| 937 | 1;
|
|---|
