version 1.3, 2001/05/04 17:38:22
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version 1.24, 2003/06/23 21:28:59
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# TeX Conversion Module |
# TeX Conversion Module |
# |
# |
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# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
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# Copyright for TtHfunc and TtMfunc by Ian Hutchinson. |
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# TtHfunc and TtMfunc (the "Code") may be compiled and linked into |
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# binary executable programs or libraries distributed by the |
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# Michigan State University (the "Licensee"), but any binaries so |
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# distributed are hereby licensed only for use in the context |
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# of a program or computational system for which the Licensee is the |
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# primary author or distributor, and which performs substantial |
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# additional tasks beyond the translation of (La)TeX into HTML. |
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# The C source of the Code may not be distributed by the Licensee |
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# to any other parties under any circumstances. |
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# |
# 05/29/00,05/30,10/11,10/20 Gerd Kortemeyer |
# 05/29/00,05/30,10/11,10/20 Gerd Kortemeyer |
# 05/03/2001 Scott Harrison |
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# 5/4 Gerd Kortemeyer |
# 5/4 Gerd Kortemeyer |
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package Apache::lontexconvert; |
package Apache::lontexconvert; |
Line 10 package Apache::lontexconvert;
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Line 44 package Apache::lontexconvert;
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use strict; |
use strict; |
use tth; |
use tth; |
use vars qw($errorstring); |
use vars qw($errorstring); |
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use Apache(); |
use Apache::lonmsg; |
use Apache::lonmsg; |
use Apache::lonxml; |
use Apache::lonxml; |
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use Apache::lonmenu; |
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# ====================================================================== Header |
# ====================================================================== Header |
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Line 20 sub header {
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Line 56 sub header {
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my $time=time; |
my $time=time; |
if ($ENV{'browser.mathml'}) { |
if ($ENV{'browser.mathml'}) { |
&tth::ttminit(); |
&tth::ttminit(); |
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if ($ENV{'browser.unicode'}) { |
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&tth::ttmoptions('-L -u1'); |
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} else { |
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&tth::ttmoptions('-L -u0'); |
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} |
} else { |
} else { |
&tth::tthinit(); |
&tth::tthinit(); |
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if ($ENV{'browser.unicode'}) { |
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&tth::tthoptions('-L -u1'); |
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} else { |
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&tth::tthoptions('-L -u0'); |
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} |
} |
} |
return &Apache::lonxml::xmlbegin(). |
return &Apache::lonxml::xmlbegin(). |
&Apache::lonxml::fontsettings(). |
&Apache::lonxml::fontsettings(). |
"\n<head>\n". |
"\n<head>\n". |
&Apache::lonxml::registerurl(). |
&Apache::lonmenu::registerurl(undef,'tex'). |
"\n</head>\n"; |
"\n</head>\n"; |
} |
} |
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# ================================================================== Conversion |
# ================================================================== Conversion |
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$Apache::lontexconvert::messedup=0; |
sub converted { |
sub converted { |
my $texstring=shift; |
my $texstring=shift; |
my $xmlstring; |
my $xmlstring='[UNDISPLAYABLE]'; |
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if ($Apache::lontexconvert::messedup) { |
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return '[TeX Uncoverted Due To Previous Errors]'; |
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} |
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eval(<<'ENDCONV'); |
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{ |
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local $SIG{SEGV}=sub { $Apache::lontexconvert::messedup=1; die; }; |
if ($ENV{'browser.mathml'}) { |
if ($ENV{'browser.mathml'}) { |
$xmlstring=&tth::ttm($$texstring); |
$xmlstring=&tth::ttm($$texstring); |
$xmlstring=~s/\<math\>/\<math xmlns=\"\&mathns\;\"\>/g; |
$xmlstring=~s/\<math\>/\<math xmlns=\"\&mathns\;\"\>/g; |
$xmlstring=~s/\<br\>/\<br\/\>/g; |
$xmlstring=~s/\<br\>/\<br\/\>/g; |
$xmlstring=~s/\<p\>/\<p\>\<\/p\>/g; |
$xmlstring=~s/\<p\>/\<p\>\<\/p\>/g; |
$errorstring.=&tth::ttmerror(); |
$errorstring.=&tth::ttmerror(); |
} else { |
} else { |
$xmlstring=&tth::tth($$texstring); |
$xmlstring=&tth::tth($$texstring); |
$errorstring.=&tth::ttherror(); |
$errorstring.=&tth::ttherror(); |
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} |
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$xmlstring=~s/^\s*//; |
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$xmlstring=~s/\s*$//; |
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} |
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ENDCONV |
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if ($Apache::lontexconvert::messedup || &tth::tthmessedup()) { |
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&Apache::lonnet::logthis("Trying to kill myself"); |
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$Apache::lontexconvert::messedup=1; |
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my $request=Apache->request(); |
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$request->child_terminate(); |
} |
} |
return $xmlstring; |
return $xmlstring; |
} |
} |
Line 62 sub footer {
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Line 125 sub footer {
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return $xmlstring; |
return $xmlstring; |
} |
} |
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# ------------------------------------------------------------ Message display |
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sub to_convert { |
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my ($string) = @_; |
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$string=~s/\<br\s*\/?\>/ /gs; |
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$string=~s/\s/ /gs; |
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$string=&HTML::Entities::decode($string); |
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return &converted(\$string); |
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} |
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sub smiley { |
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my $expression=shift; |
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if ($ENV{'browser.imagesuppress'} eq 'on') { return $expression; } |
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my %smileys=('\:\-*\)' => 'smiley', |
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'8\-*\)' => 'coolsmile', |
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'8\-*I' => 'coolindiff', |
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':\-*\(' => 'frowny', |
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'\:\-*(o|O|\(\))' => 'shocked', |
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'\;\-*\)' => 'wink', |
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'\:\-*P' => 'baeh', |
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'\:\-(\\\|\\/)' => 'hrrm', |
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'\:\-*D' => 'bigsmile', |
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'\:\-*C' => 'angry', |
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'\:(\'|\`)\-*\(' => 'cry', |
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'\:\-*(X|\#)' => 'lipsrsealed', |
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'\:\-*S' => 'huh'); |
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my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'}; |
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foreach (keys %smileys) { |
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$expression=~s/$_/\<img src="$iconpath\/$smileys{$_}.gif" \/\>/gs; |
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} |
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return $expression; |
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} |
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sub msgtexconverted { |
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my $message=shift; |
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$errorstring=''; |
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if ($ENV{'browser.mathml'}) { |
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&tth::ttminit(); |
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if ($ENV{'browser.unicode'}) { |
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&tth::ttmoptions('-L -u1'); |
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} else { |
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&tth::ttmoptions('-L -u0'); |
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} |
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} else { |
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&tth::tthinit(); |
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if ($ENV{'browser.unicode'}) { |
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&tth::tthoptions('-L -u1'); |
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} else { |
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&tth::tthoptions('-L -u0'); |
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} |
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} |
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$message=~s/(\$\$.+?\$\$)/&to_convert($1)/gse; |
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$message=~s/(\$.+?\$)/&to_convert($1)/gse; |
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$message=~s/(\\\(.+?\\\))/&to_convert($1)/gse; |
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$message=~s/(\\\[.+?\\\])/&to_convert($1)/gse; |
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if (wantarray) { |
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return (&smiley($message),$errorstring); |
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} else { |
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return &smiley($message).$errorstring; |
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} |
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} |
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1; |
1; |
__END__ |
__END__ |
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