Annotation of loncom/interface/lonspeller.pm, revision 1.17
1.1 www 1: # The LearningOnline Network with CAPA
2: # Interface routines for Aspell
3: #
1.17 ! raeburn 4: # $Id: lonspeller.pm,v 1.16 2006/03/24 21:40:11 albertel Exp $
1.1 www 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:
1.5 www 33: use Apache::Constants qw(:common);
1.1 www 34: use Text::Aspell;
35: use Apache::lonlocal;
1.11 albertel 36: use Apache::lonnet;
1.7 www 37: use Apache::lontexconvert();
1.5 www 38: use HTML::LCParser;
1.1 www 39: use strict;
1.5 www 40:
1.2 www 41: my $speller;
1.6 www 42: my $insidelink;
1.1 www 43:
1.4 www 44: sub spellcheck_language {
1.11 albertel 45: if ($env{'form.lang'}) { return $env{'form.lang'}; }
1.4 www 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:
1.16 albertel 57: {
58: my $uniq;
59: sub get_uniq {
60: return ++$uniq;
61: }
62: }
63:
1.5 www 64: sub textsection {
1.2 www 65: my $input=shift;
66: my $output='';
1.4 www 67: &set_language();
1.6 www 68: foreach my $word (split(/\b/,$input)) {
69: if (($word=~/\W/) || ($word=~/^(lt|gt|nbsp|amp)$/i)
70: || ($speller->check($word))) {
71: $output.=$word;
1.2 www 72: } else {
73: my $suggestions=join(' ',$speller->suggest($word));
1.16 albertel 74: $suggestions = &Apache::loncommon::js_ready($suggestions);
1.6 www 75: if (($suggestions) && (!$insidelink)) {
1.13 albertel 76: my $start_page=
77: &Apache::loncommon::start_page('Speller Suggestions',undef,
1.15 albertel 78: {'only_body' => 1,
79: 'js_ready' => 1,
80: 'bgcolor' => '#FFFFFF'});
1.13 albertel 81: my $end_page=
1.16 albertel 82: &Apache::loncommon::end_page({'js_ready' => 1,});
83: my $num = &get_uniq();
84: my $info ='<h3>'.$word.'</h3>'.$suggestions;
85: $output .= "<script type=\"text/javascript\">
86: //<!--
87: function LONCAPA_lonspeller_$num() {
88: spellwin=open(".&Apache::lonhtmlcommon::javascript_nothing().",'spellwin','width=140,height=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
89: spellwin.".&Apache::lonhtmlcommon::javascript_docopen().";
90: spellwin.document.writeln('$start_page $info $end_page');
91: spellwin.document.close();
92: spellwin.focus();
93: }
94: //-->
95: </script><a href=\"javascript:LONCAPA_lonspeller_$num();void(0);\">";
1.2 www 96: }
97: $output.='<font color="red">'.$word.'</font>';
1.6 www 98: if (($suggestions) && (!$insidelink)) { $output.='</a>'; }
1.2 www 99: }
100: }
101: return $output;
102: }
103:
1.5 www 104:
105: sub markeduptext {
106: my $input=shift;
107: my $output='';
108: my $parser=HTML::LCParser->new(\$input);
1.6 www 109: $insidelink=0;
1.5 www 110: my $token;
111: while ($token=$parser->get_token) {
112: if ($token->[0] eq 'T') {
113: $output.=&textsection($token->[1]);
114: } elsif ($token->[0] eq 'S') {
115: $output.=$token->[4];
1.6 www 116: foreach my $tag ('m','script') {
117: if ($token->[1] eq $tag) {
118: $output.=$parser->get_text('/'.$tag);
119: }
120: }
121: if ($token->[1] eq 'a') {
122: $insidelink=1;
1.5 www 123: }
124: } elsif ($token->[0] eq 'E') {
125: $output.=$token->[2];
1.6 www 126: if ($token->[1] eq 'a') {
127: $insidelink=0;
128: }
1.5 www 129: }
130: }
1.6 www 131: $insidelink=0;
1.5 www 132: return $output;
133: }
134:
1.3 www 135: sub initspeller {
136: unless (defined($speller)) {
137: $speller = Text::Aspell->new;
138: $speller->set_option('lang','en_US');
139: }
1.6 www 140: $insidelink=0;
1.3 www 141: }
142:
143: sub handler {
144: my $r = shift;
145: &Apache::loncommon::content_type($r,'text/html');
146: $r->send_http_header;
147: return OK if $r->header_only;
148:
149: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
150:
151: &initspeller();
1.14 albertel 152: my $start_page =
153: &Apache::loncommon::start_page('Spell Checker',undef,
154: {'only_body' => 1,
155: 'bgcolor' => '#DDDDDD'});
156: $r->print($start_page.
1.7 www 157: &Apache::lontexconvert::msgtexconverted(
1.11 albertel 158: &markeduptext($env{'form.text'})).
1.12 albertel 159: &Apache::loncommon::end_page());
1.3 www 160: return OK;
161: }
162:
1.2 www 163: BEGIN {
1.3 www 164: &initspeller();
1.1 www 165: }
166:
167: 1;
168:
169: __END__
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