[BACK]Return to lonspeller.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface
File:  [LON-CAPA] / loncom / interface / lonspeller.pm
Revision 1.11: download - view: text, annotated - select for diffs
Thu Apr 7 06:56:23 2005 UTC (19 years, 1 month ago) by albertel
Branches: MAIN
CVS tags: version_2_1_X, version_2_1_3, version_2_1_2, version_2_1_1, version_2_1_0, version_2_0_X, version_2_0_99_1, version_2_0_2, version_2_0_1, version_2_0_0, version_1_99_3, version_1_99_2, version_1_99_1_tmcc, version_1_99_1, version_1_99_0_tmcc, version_1_99_0, HEAD
- ENV -> env

    1: # The LearningOnline Network with CAPA
    2: # Interface routines for Aspell
    3: #
    4: # $Id: lonspeller.pm,v 1.11 2005/04/07 06:56:23 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: sub textsection {
   58:     my $input=shift;
   59:     my $output='';
   60:     &set_language();
   61:     foreach my $word (split(/\b/,$input)) {
   62: 	if (($word=~/\W/) || ($word=~/^(lt|gt|nbsp|amp)$/i)
   63: 	    || ($speller->check($word))) {
   64: 	    $output.=$word;
   65: 	} else {
   66: 	    my $suggestions=join(' ',$speller->suggest($word));
   67: 	    $suggestions=~s/\'/\\\'/gs;
   68: 	    if (($suggestions) && (!$insidelink)) {
   69: 		my $html=&Apache::lonxml::xmlbegin('encode');
   70: 		$output.='<a href="javascript:spellwin=window.open('.
   71: 		    &Apache::lonhtmlcommon::javascript_nothing().
   72: 		    ',\'spellwin\',\'height=140,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no\');'.
   73:                     'spellwin.'.&Apache::lonhtmlcommon::javascript_docopen().';spellwin.document.writeln(\''.$html.'<head></head><body><h3>'.$word.
   74:                     '</h3>'.$suggestions.'</body></html>\');spellwin.document.close();spellwin.focus()">';
   75: 	    }
   76: 	    $output.='<font color="red">'.$word.'</font>';
   77: 	    if (($suggestions) && (!$insidelink)) { $output.='</a>'; }
   78: 	}
   79:     }
   80:     return $output;
   81: }
   82: 
   83: 
   84: sub markeduptext {
   85:     my $input=shift;
   86:     my $output='';
   87:     my $parser=HTML::LCParser->new(\$input);
   88:     $insidelink=0;
   89:     my $token;
   90:     while ($token=$parser->get_token) {
   91: 	if ($token->[0] eq 'T') {
   92: 	    $output.=&textsection($token->[1]);
   93: 	} elsif ($token->[0] eq 'S') {
   94: 	    $output.=$token->[4];
   95: 	    foreach my $tag ('m','script') {
   96: 		if ($token->[1] eq $tag) {
   97: 		    $output.=$parser->get_text('/'.$tag);
   98: 		}
   99: 	    }
  100: 	    if ($token->[1] eq 'a') {
  101: 		$insidelink=1;
  102: 	    }
  103: 	} elsif ($token->[0] eq 'E') {
  104: 	    $output.=$token->[2];
  105: 	    if ($token->[1] eq 'a') {
  106: 		$insidelink=0;
  107: 	    }
  108: 	}
  109:     }
  110:     $insidelink=0;
  111:     return $output;
  112: }
  113: 
  114: sub initspeller {
  115:     unless (defined($speller)) {
  116: 	$speller = Text::Aspell->new;
  117: 	$speller->set_option('lang','en_US');
  118:     }
  119:     $insidelink=0;
  120: }
  121: 
  122: sub handler {
  123:     my $r = shift;
  124:     &Apache::loncommon::content_type($r,'text/html');
  125:     $r->send_http_header;
  126:     return OK if $r->header_only;
  127: 
  128:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
  129: 
  130:     &initspeller();
  131:     my $html=&Apache::lonxml::xmlbegin();
  132:     $r->print($html.'<head><title>'.
  133: 	      &mt('Spell Checker').
  134: 	      '</title></head><body bgcolor="#DDDDDD">'.
  135: 	      &Apache::lontexconvert::msgtexconverted(
  136: 				     &markeduptext($env{'form.text'})).
  137: 	      '</body></html>');
  138:     return OK;
  139: }
  140: 
  141: BEGIN {
  142:     &initspeller();
  143: }
  144: 
  145: 1;
  146: 
  147: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>