# The LearningOnline Network with CAPA
# TeX Conversion Module
#
# 05/29/00,05/30,10/11,10/20 Gerd Kortemeyer
# 05/03/2001 Scott Harrison
# 5/4 Gerd Kortemeyer
package Apache::lontexconvert;
use strict;
use tth;
use vars qw($errorstring);
use Apache::lonmsg;
use Apache::lonxml;
# ====================================================================== Header
sub header {
$errorstring='';
my $time=time;
if ($ENV{'browser.mathml'}) {
&tth::ttminit();
} else {
&tth::tthinit();
}
return &Apache::lonxml::xmlbegin().
&Apache::lonxml::fontsettings().
"\n<head>\n".
&Apache::lonxml::registerurl().
"\n</head>\n";
}
# ================================================================== Conversion
sub converted {
my $texstring=shift;
my $xmlstring;
if ($ENV{'browser.mathml'}) {
$xmlstring=&tth::ttm($$texstring);
$xmlstring=~s/\<math\>/\<math xmlns=\"\&mathns\;\"\>/g;
$xmlstring=~s/\<br\>/\<br\/\>/g;
$xmlstring=~s/\<p\>/\<p\>\<\/p\>/g;
$errorstring.=&tth::ttmerror();
} else {
$xmlstring=&tth::tth($$texstring);
$errorstring.=&tth::ttherror();
}
return $xmlstring;
}
# ====================================================================== Footer
sub footer {
my $xmlstring='';
if ($ENV{'request.state'} eq 'construct') {
$xmlstring.='<address>'.$errorstring.'</address>';
} else {
&Apache::lonmsg::author_res_msg($ENV{'request.filename'},$errorstring);
}
# -------------------------------------------------------------------- End Body
$xmlstring.=&Apache::lonxml::xmlend();
return $xmlstring;
}
1;
__END__
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