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File:  [LON-CAPA] / loncom / interface / lonspeller.pm
Revision 1.3: download - view: text, annotated - select for diffs
Thu Jul 22 20:19:20 2004 UTC (19 years, 10 months ago) by www
Branches: MAIN
CVS tags: HEAD
Be able to call as handler

    1: # The LearningOnline Network with CAPA
    2: # Interface routines for Aspell
    3: #
    4: # $Id: lonspeller.pm,v 1.3 2004/07/22 20:19:20 www 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 Text::Aspell;
   34: use Apache::lonlocal;
   35: use strict;
   36: my $speller;
   37: 
   38: sub markeduptext {
   39:     my $input=shift;
   40:     my $output='';
   41:     foreach my $word (split(/\W+/,$input)) {
   42: 	if ($speller->check($word)) {
   43: 	    $output.=$word.' ';
   44: 	} else {
   45: 	    my $suggestions=join(' ',$speller->suggest($word));
   46: 	    &Apache::lonnet::logthis($suggestions);
   47: 	    $suggestions=~s/\'/\\\'/gs;
   48: 	    if ($suggestions) {
   49: 		$output.='<a href="javascript:alert('."'".
   50: 		    $suggestions."');".
   51: 		    '">';
   52: 	    }
   53: 	    $output.='<font color="red">'.$word.'</font>';
   54: 	    if ($suggestions) { $output.='</a>'; }
   55: 	    $output.=' ';
   56: 	}
   57:     }
   58:     return $output;
   59: }
   60: 
   61: sub initspeller {
   62:     unless (defined($speller)) {
   63: 	$speller = Text::Aspell->new;
   64: 	$speller->set_option('lang','en_US');
   65: 	$speller->set_option('sug-mode','fast');
   66:     }
   67: }
   68: 
   69: sub handler {
   70:     my $r = shift;
   71:     &Apache::loncommon::content_type($r,'text/html');
   72:     $r->send_http_header;
   73:     return OK if $r->header_only;
   74: 
   75:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
   76: 
   77:     &initspeller();
   78:     $r->print('<html><head><title>'.
   79: 	      &mt('Spell Checker').
   80: 	      '</title></head><body bgcolor="#DDDDDD">'.
   81: 	      &markeduptext($ENV{'form.text'}).
   82: 	      '</body></html>');
   83:     return OK;
   84: }
   85: 
   86: BEGIN {
   87:     &initspeller();
   88: }
   89: 
   90: 1;
   91: 
   92: __END__
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