version 1.1, 2001/05/03 21:28:53
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version 1.14, 2003/02/03 18:03:53
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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 |
# 5/4 Gerd Kortemeyer |
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package Apache::lontexconvert; |
package Apache::lontexconvert; |
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Line 10 use strict;
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Line 45 use strict;
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use tth; |
use tth; |
use vars qw($errorstring); |
use vars qw($errorstring); |
use Apache::lonmsg; |
use Apache::lonmsg; |
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use Apache::lonxml; |
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# ====================================================================== Header |
# ====================================================================== Header |
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sub header { |
sub header { |
$errorstring=''; |
$errorstring=''; |
my $time=time; |
my $time=time; |
my $addhead=<<END; |
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<script language="JavaScript"> |
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if (window.location.pathname!="/res/adm/pages/menu.html") { |
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menu=window.open("","LONCAPAmenu"); |
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menu.currentURL=window.location.href; |
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} |
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</script> |
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END |
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if ($ENV{'browser.mathml'}) { |
if ($ENV{'browser.mathml'}) { |
&tth::ttminit(); |
&tth::ttminit(); |
return '<?xml version="1.0"?>' |
if ($ENV{'browser.unicode'}) { |
.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>' |
&tth::ttmoptions('-L -u1'); |
.'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" ' |
} else { |
.'[<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">]>' |
&tth::ttmoptions('-L -u0'); |
.'<html xmlns:math="http://www.w3.org/1998/Math/MathML" ' |
} |
.'xmlns="http://www.w3.org/TR/REC-html40">' |
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."<head>$addhead</head>" |
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."\n"; |
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} else { |
} else { |
&tth::tthinit(); |
&tth::tthinit(); |
my $headerstring='<html>'; |
if ($ENV{'browser.unicode'}) { |
if ($ENV{'browser.os'} eq 'mac') { |
&tth::tthoptions('-L -u1'); |
$headerstring.="<head>\n" |
} else { |
.'<meta Content-Type="text/html; charset=x-mac-roman">' |
&tth::tthoptions('-L -u0'); |
."\n$addhead</head>\n"; |
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} |
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else { |
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$headerstring.="<head>$addhead</head>"; |
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} |
} |
return $headerstring."\n"; |
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} |
} |
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return &Apache::lonxml::xmlbegin(). |
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&Apache::lonxml::fontsettings(). |
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"\n<head>\n". |
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&Apache::lonxml::registerurl(undef,'tex'). |
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"\n</head>\n"; |
} |
} |
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# ================================================================== Conversion |
# ================================================================== Conversion |
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sub converted { |
sub converted { |
my $texstring=shift; |
my $texstring=shift; |
my $xmlstring; |
my $xmlstring='[UNDISPLAYABLE]'; |
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eval(<<'ENDCONV'); |
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{ |
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local $SIG{SEGV}=sub { die; }; |
if ($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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ENDCONV |
return $xmlstring; |
return $xmlstring; |
} |
} |
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Line 77 sub footer {
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Line 107 sub footer {
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&Apache::lonmsg::author_res_msg($ENV{'request.filename'},$errorstring); |
&Apache::lonmsg::author_res_msg($ENV{'request.filename'},$errorstring); |
} |
} |
# -------------------------------------------------------------------- End Body |
# -------------------------------------------------------------------- End Body |
$xmlstring.='</html>'; |
$xmlstring.=&Apache::lonxml::xmlend(); |
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*\/?\>/ /g; |
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return &converted(\$string); |
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} |
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sub msgtexconverted { |
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my $message=shift; |
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#FIXME this crap needs to go but right now the -L option might be |
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#ignored if this isn;t the first time the tth engine is used |
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#thus the \\document class crap, it makes sure we init the LaTeX stuff |
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if ($ENV{'browser.mathml'}) { |
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&tth::ttminit(); |
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&tth::ttmoptions("-L"); |
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} else { |
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&tth::tthinit(); |
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&tth::tthoptions("-L"); |
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} |
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$message=~s/(\$\$.+?\$\$)/&to_convert("\\documentclass{article}".$1)/ge; |
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$message=~s/(\$.+?\$)/&to_convert("\\documentclass{article}".$1)/ge; |
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$message=~s/(\\\(.+?\\\))/&to_convert("\\documentclass{article}".$1)/ge; |
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$message=~s/(\\\[.+?\\\])/&to_convert("\\documentclass{article}".$1)/ge; |
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return $message.$errorstring; |
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} |
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1; |
1; |
__END__ |
__END__ |
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