source: branches/1.2/workflow/js/htmlarea/plugins/SpellChecker/spell-check-logic.cgi @ 1349

Revision 1349, 6.0 KB checked in by niltonneto, 15 years ago (diff)

Ticket #561 - Inclusão do módulo Workflow faltante nessa versão.
  • Property svn:executable set to *
Line 
1#! /usr/bin/perl -w
2
3# Spell Checker Plugin for HTMLArea-3.0
4# Sponsored by www.americanbible.org
5# Implementation by Mihai Bazon, http://dynarch.com/mishoo/
6#
7# (c) dynarch.com 2003.
8# Distributed under the same terms as HTMLArea itself.
9# This notice MUST stay intact for use (see license.txt).
10#
11
12use strict;
13use utf8;
14use Encode;
15use Text::Aspell;
16use XML::DOM;
17use CGI;
18
19my $TIMER_start = undef;
20eval {
21    use Time::HiRes qw( gettimeofday tv_interval );
22    $TIMER_start = [gettimeofday()];
23};
24# use POSIX qw( locale_h );
25
26binmode STDIN, ':utf8';
27binmode STDOUT, ':utf8';
28
29my $debug = 0;
30
31my $speller = new Text::Aspell;
32my $cgi = new CGI;
33
34my $total_words = 0;
35my $total_mispelled = 0;
36my $total_suggestions = 0;
37my $total_words_suggested = 0;
38
39# FIXME: report a nice error...
40die "Can't create speller!" unless $speller;
41
42my $dict = $cgi->param('dictionary') || $cgi->cookie('dictionary') || 'en';
43
44# add configurable option for this
45$speller->set_option('lang', $dict);
46$speller->set_option('encoding', 'UTF-8');
47#setlocale(LC_CTYPE, $dict);
48
49# ultra, fast, normal, bad-spellers
50# bad-spellers seems to cause segmentation fault
51$speller->set_option('sug-mode', 'normal');
52
53my %suggested_words = ();
54keys %suggested_words = 128;
55
56my $file_content = decode('UTF-8', $cgi->param('content'));
57$file_content = parse_with_dom($file_content);
58
59my $ck_dictionary = $cgi->cookie(-name     => 'dictionary',
60                                 -value    => $dict,
61                                 -expires  => '+30d');
62
63print $cgi->header(-type    => 'text/html; charset: utf-8',
64                   -cookie  => $ck_dictionary);
65
66my $js_suggested_words = make_js_hash(\%suggested_words);
67my $js_spellcheck_info = make_js_hash_from_array
68  ([
69    [ 'Total words'           , $total_words ],
70    [ 'Mispelled words'       , $total_mispelled . ' in dictionary \"'.$dict.'\"' ],
71    [ 'Total suggestions'     , $total_suggestions ],
72    [ 'Total words suggested' , $total_words_suggested ],
73    [ 'Spell-checked in'      , defined $TIMER_start ? (tv_interval($TIMER_start) . ' seconds') : 'n/a' ]
74   ]);
75
76print qq^<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
77<html>
78<head>
79<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
80<link rel="stylesheet" type="text/css" media="all" href="spell-check-style.css" />
81<script type="text/javascript">
82  var suggested_words = { $js_suggested_words };
83  var spellcheck_info = { $js_spellcheck_info }; </script>
84</head>
85<body onload="window.parent.finishedSpellChecking();">^;
86
87print $file_content;
88if ($cgi->param('init') eq '1') {
89    my @dicts = $speller->dictionary_info();
90    my $dictionaries = '';
91    foreach my $i (@dicts) {
92        next if $i->{jargon};
93        my $name = $i->{name};
94        if ($name eq $dict) {
95            $name = '@'.$name;
96        }
97        $dictionaries .= ',' . $name;
98    }
99    $dictionaries =~ s/^,//;
100    print qq^<div id="HA-spellcheck-dictionaries">$dictionaries</div>^;
101}
102
103print '</body></html>';
104
105# Perl is beautiful.
106sub spellcheck {
107    my $node = shift;
108    my $doc = $node->getOwnerDocument;
109    my $check = sub {                 # called for each word in the text
110        # input is in UTF-8
111        my $word = shift;
112        my $already_suggested = defined $suggested_words{$word};
113        ++$total_words;
114        if (!$already_suggested && $speller->check($word)) {
115            return undef;
116        } else {
117            # we should have suggestions; give them back to browser in UTF-8
118            ++$total_mispelled;
119            if (!$already_suggested) {
120                # compute suggestions for this word
121                my @suggestions = $speller->suggest($word);
122                my $suggestions = decode($speller->get_option('encoding'), join(',', @suggestions));
123                $suggested_words{$word} = $suggestions;
124                ++$total_suggestions;
125                $total_words_suggested += scalar @suggestions;
126            }
127            # HA-spellcheck-error
128            my $err = $doc->createElement('span');
129            $err->setAttribute('class', 'HA-spellcheck-error');
130            my $tmp = $doc->createTextNode;
131            $tmp->setNodeValue($word);
132            $err->appendChild($tmp);
133            return $err;
134        }
135    };
136    while ($node->getNodeValue =~ /([\p{IsWord}']+)/) {
137        my $word = $1;
138        my $before = $`;
139        my $after = $';
140        my $df = &$check($word);
141        if (!$df) {
142            $before .= $word;
143        }
144        {
145            my $parent = $node->getParentNode;
146            my $n1 = $doc->createTextNode;
147            $n1->setNodeValue($before);
148            $parent->insertBefore($n1, $node);
149            $parent->insertBefore($df, $node) if $df;
150            $node->setNodeValue($after);
151        }
152    }
153};
154
155sub check_inner_text {
156    my $node = shift;
157    my $text = '';
158    for (my $i = $node->getFirstChild; defined $i; $i = $i->getNextSibling) {
159        if ($i->getNodeType == TEXT_NODE) {
160            spellcheck($i);
161        }
162    }
163};
164
165sub parse_with_dom {
166    my ($text) = @_;
167    $text = '<spellchecker>'.$text.'</spellchecker>';
168
169    my $parser = new XML::DOM::Parser;
170    if ($debug) {
171        open(FOO, '>:utf8', '/tmp/foo');
172        print FOO $text;
173        close FOO;
174    }
175    my $doc = $parser->parse($text);
176    my $nodes = $doc->getElementsByTagName('*');
177    my $n = $nodes->getLength;
178
179    for (my $i = 0; $i < $n; ++$i) {
180        my $node = $nodes->item($i);
181        if ($node->getNodeType == ELEMENT_NODE) {
182            check_inner_text($node);
183        }
184    }
185
186    my $ret = $doc->toString;
187    $ret =~ s{<spellchecker>(.*)</spellchecker>}{$1}sg;
188    return $ret;
189};
190
191sub make_js_hash {
192    my ($hash) = @_;
193    my $js_hash = '';
194    while (my ($key, $val) = each %$hash) {
195        $js_hash .= ',' if $js_hash;
196        $js_hash .= '"'.$key.'":"'.$val.'"';
197    }
198    return $js_hash;
199};
200
201sub make_js_hash_from_array {
202    my ($array) = @_;
203    my $js_hash = '';
204    foreach my $i (@$array) {
205        $js_hash .= ',' if $js_hash;
206        $js_hash .= '"'.$i->[0].'":"'.$i->[1].'"';
207    }
208    return $js_hash;
209};
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