File:
[LON-CAPA] /
loncom /
interface /
lonspeller.pm
Revision
1.16:
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Fri Mar 24 21:40:11 2006 UTC (18 years, 4 months ago) by
albertel
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MAIN
CVS tags:
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- making the speller popup use a dynamically defined function rather than packing everything into the link URL (ie has a limit on href cvalues of 512 characters or something)
- html_encode was supposeed to do <>& too
- Firefox in standards compliance mode thinks that any instance of </script> means to end that last script so fooling it with making </script> in the script be '....</script'+'>....'
1: # The LearningOnline Network with CAPA
2: # Interface routines for Aspell
3: #
4: # $Id: lonspeller.pm,v 1.16 2006/03/24 21:40:11 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ######################################################################
29: ######################################################################
30:
31: package Apache::lonspeller;
32:
33: use Apache::Constants qw(:common);
34: use Text::Aspell;
35: use Apache::lonlocal;
36: use Apache::lonnet;
37: use Apache::lontexconvert();
38: use HTML::LCParser;
39: use strict;
40:
41: my $speller;
42: my $insidelink;
43:
44: sub spellcheck_language {
45: if ($env{'form.lang'}) { return $env{'form.lang'}; }
46: if (&mt('spellcheck_lang') ne 'spellcheck_lang') {
47: return &mt('spellcheck_lang');
48: }
49: return 'en_US';
50: }
51:
52: sub set_language {
53: my $lang=&spellcheck_language();
54: $speller->set_option('lang',$lang);
55: }
56:
57: {
58: my $uniq;
59: sub get_uniq {
60: return ++$uniq;
61: }
62: }
63:
64: sub textsection {
65: my $input=shift;
66: my $output='';
67: &set_language();
68: foreach my $word (split(/\b/,$input)) {
69: if (($word=~/\W/) || ($word=~/^(lt|gt|nbsp|amp)$/i)
70: || ($speller->check($word))) {
71: $output.=$word;
72: } else {
73: my $suggestions=join(' ',$speller->suggest($word));
74: $suggestions = "<script>alert('sug')</script>".$suggestions;
75: $suggestions = &Apache::loncommon::js_ready($suggestions);
76: if (($suggestions) && (!$insidelink)) {
77: my $start_page=
78: &Apache::loncommon::start_page('Speller Suggestions',undef,
79: {'only_body' => 1,
80: 'js_ready' => 1,
81: 'bgcolor' => '#FFFFFF'});
82: my $end_page=
83: &Apache::loncommon::end_page({'js_ready' => 1,});
84: my $num = &get_uniq();
85: my $info ='<h3>'.$word.'</h3>'.$suggestions;
86: $output .= "<script type=\"text/javascript\">
87: //<!--
88: function LONCAPA_lonspeller_$num() {
89: spellwin=open(".&Apache::lonhtmlcommon::javascript_nothing().",'spellwin','width=140,height=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
90: spellwin.".&Apache::lonhtmlcommon::javascript_docopen().";
91: spellwin.document.writeln('$start_page $info $end_page');
92: spellwin.document.close();
93: spellwin.focus();
94: }
95: //-->
96: </script><a href=\"javascript:LONCAPA_lonspeller_$num();void(0);\">";
97: }
98: $output.='<font color="red">'.$word.'</font>';
99: if (($suggestions) && (!$insidelink)) { $output.='</a>'; }
100: }
101: }
102: return $output;
103: }
104:
105:
106: sub markeduptext {
107: my $input=shift;
108: my $output='';
109: my $parser=HTML::LCParser->new(\$input);
110: $insidelink=0;
111: my $token;
112: while ($token=$parser->get_token) {
113: if ($token->[0] eq 'T') {
114: $output.=&textsection($token->[1]);
115: } elsif ($token->[0] eq 'S') {
116: $output.=$token->[4];
117: foreach my $tag ('m','script') {
118: if ($token->[1] eq $tag) {
119: $output.=$parser->get_text('/'.$tag);
120: }
121: }
122: if ($token->[1] eq 'a') {
123: $insidelink=1;
124: }
125: } elsif ($token->[0] eq 'E') {
126: $output.=$token->[2];
127: if ($token->[1] eq 'a') {
128: $insidelink=0;
129: }
130: }
131: }
132: $insidelink=0;
133: return $output;
134: }
135:
136: sub initspeller {
137: unless (defined($speller)) {
138: $speller = Text::Aspell->new;
139: $speller->set_option('lang','en_US');
140: }
141: $insidelink=0;
142: }
143:
144: sub handler {
145: my $r = shift;
146: &Apache::loncommon::content_type($r,'text/html');
147: $r->send_http_header;
148: return OK if $r->header_only;
149:
150: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
151:
152: &initspeller();
153: my $start_page =
154: &Apache::loncommon::start_page('Spell Checker',undef,
155: {'only_body' => 1,
156: 'bgcolor' => '#DDDDDD'});
157: $r->print($start_page.
158: &Apache::lontexconvert::msgtexconverted(
159: &markeduptext($env{'form.text'})).
160: &Apache::loncommon::end_page());
161: return OK;
162: }
163:
164: BEGIN {
165: &initspeller();
166: }
167:
168: 1;
169:
170: __END__
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