version 1.64, 2005/03/01 03:21:05
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version 1.76, 2006/09/05 17:33:11
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Line 42 package Apache::lontexconvert;
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Line 42 package Apache::lontexconvert;
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use strict; |
use strict; |
use tth(); |
use tth(); |
use vars qw($errorstring); |
use vars qw($errorstring); |
use Apache(); |
#use Apache::lonxml(); |
use Apache::lonmsg(); |
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use Apache::lonxml(); |
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use Apache::lonmenu(); |
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use Apache::lonlocal; |
use Apache::lonlocal; |
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use Apache::lonnet; |
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use lib '/home/httpd/lib/perl/'; |
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use LONCAPA; |
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# ====================================================================== Header |
# ====================================================================== Header |
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sub init_tth { |
sub init_tth { |
my $options=$ENV{'course.'.$ENV{'request.course.id'}.'.tthoptions'}; |
my $options=$env{'course.'.$env{'request.course.id'}.'.tthoptions'}; |
if ($ENV{'browser.mathml'}) { |
if ($options =~ /\S/) { |
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$options = ' '.$options; |
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} else { |
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undef($options); |
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} |
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if ($env{'browser.mathml'}) { |
&tth::ttminit(); |
&tth::ttminit(); |
if ($ENV{'browser.unicode'}) { |
if ($env{'browser.unicode'}) { |
&tth::ttmoptions('-L -u1 '.$options); |
&tth::ttmoptions('-L -u1'.$options); |
} else { |
} else { |
&tth::ttmoptions('-L -u0 '.$options); |
&tth::ttmoptions('-L -u0'.$options); |
} |
} |
} else { |
} else { |
&tth::tthinit(); |
&tth::tthinit(); |
if ($ENV{'browser.unicode'}) { |
if ($env{'browser.unicode'}) { |
&tth::tthoptions('-L -u1 '.$options); |
&tth::tthoptions('-L -u1'.$options); |
} else { |
} else { |
&tth::tthoptions('-L -u0 '.$options); |
&tth::tthoptions('-L -u0'.$options); |
} |
} |
} |
} |
} |
} |
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sub header { |
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$errorstring=''; |
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my $time=time; |
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&init_tth(); |
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return &Apache::lonxml::xmlbegin(). |
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"\n<head>\n". |
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&Apache::lonxml::fontsettings(). |
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&Apache::lonmenu::registerurl(undef,'tex'). |
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"\n</head>\n"; |
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} |
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# ================================================================== Conversion |
# ================================================================== Conversion |
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$Apache::lontexconvert::messedup=0; |
$Apache::lontexconvert::messedup=0; |
Line 99 sub convert_real {
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Line 94 sub convert_real {
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die &mt("TeX unconverted due to errors"); |
die &mt("TeX unconverted due to errors"); |
}; |
}; |
&Apache::lonxml::start_alarm(); |
&Apache::lonxml::start_alarm(); |
if ($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; |
$xmlstring=~s/\<br\>/\<br\/\>/g; |
Line 136 ENDCONV
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Line 131 ENDCONV
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$errorstring) { |
$errorstring) { |
&Apache::lonnet::logthis("Trying to kill myself"); |
&Apache::lonnet::logthis("Trying to kill myself"); |
$Apache::lontexconvert::messedup=1; |
$Apache::lontexconvert::messedup=1; |
my $request=Apache->request(); |
if (ref($Apache::lonxml::request)) { |
$request->child_terminate(); |
$Apache::lonxml::request->child_terminate(); |
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} else { |
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my $request; |
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eval { $request=Apache->request; }; |
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if (!$request) { |
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eval { $request=Apache2::RequestUtil->request; }; |
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} |
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if ($request) { |
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$request->child_terminate(); |
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} else { |
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&Apache::lonnet::logthis("Unable to find a request to do child_terminate on"); |
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} |
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} |
} |
} |
return $xmlstring; |
return $xmlstring; |
} |
} |
Line 164 sub jsMath_converted {
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Line 171 sub jsMath_converted {
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my $tag='span'; |
my $tag='span'; |
if (&displaystyle($texstring)) { $tag='div'; } |
if (&displaystyle($texstring)) { $tag='div'; } |
&clean_out_math_mode($texstring); |
&clean_out_math_mode($texstring); |
return '<'.$tag.' class="math">'.$$texstring.'</'.$tag.'>'; |
return &jsMath_header(). |
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'<'.$tag.' class="math">'.$$texstring.'</'.$tag.'>'; |
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} |
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{ |
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my @jsMath_sent_header; |
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sub jsMath_reset { |
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undef(@jsMath_sent_header); |
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} |
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sub jsMath_push { |
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push(@jsMath_sent_header,0); |
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} |
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sub jsMath_header { |
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return '' if $jsMath_sent_header[-1]; |
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$jsMath_sent_header[-1]=1; |
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return |
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'<script type="text/javascript"> |
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function NoFontMessage () {} |
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</script>'."\n". |
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'<script type="text/javascript" src="/adm/jsMath/jsMath.js"></script>'."\n"; |
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} |
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sub jsMath_process { |
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my $state = pop(@jsMath_sent_header); |
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return '' if !$state; |
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return '<script type="text/javascript">jsMath.Process()</script>'; |
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} |
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} |
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sub init_math_support { |
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&init_tth(); |
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&Apache::lontexconvert::jsMath_push(); |
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if ($env{'environment.texengine'} eq 'jsMath' || |
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$env{'form.texengine'} eq 'jsMath' ) { |
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return &Apache::lontexconvert::jsMath_header(); |
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} |
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return; |
} |
} |
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sub mimetex_converted { |
sub mimetex_converted { |
Line 176 sub mimetex_converted {
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Line 218 sub mimetex_converted {
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if ($displaystyle) { |
if ($displaystyle) { |
$$texstring='\\displaystyle \\Large '.$$texstring; |
$$texstring='\\displaystyle \\Large '.$$texstring; |
} |
} |
my $result='<img src="/cgi-bin/mimetex.cgi?'.&Apache::lonnet::escape($$texstring).'" />'; |
my $result='<img src="/cgi-bin/mimetex.cgi?'.&escape($$texstring).'" />'; |
if ($displaystyle) { |
if ($displaystyle) { |
$result='<center>'.$result.'</center>'; |
$result='<center>'.$result.'</center>'; |
} |
} |
Line 184 sub mimetex_converted {
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Line 226 sub mimetex_converted {
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} |
} |
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sub converted { |
sub converted { |
if ($ENV{'environment.texengine'} eq 'tth') { |
my ($string,$mode)=@_; |
return &tth_converted; |
if ($mode eq '') { $mode=$env{'environment.texengine'}; } |
} elsif ($ENV{'environment.texengine'} eq 'jsMath') { |
if ($mode =~ /tth/i) { |
return &jsMath_converted; |
return &tth_converted($string); |
} elsif ($ENV{'environment.texengine'} eq 'mimetex') { |
} elsif ($mode =~ /jsmath/i) { |
return &mimetex_converted; |
return &jsMath_converted($string); |
} |
} elsif ($mode =~ /mimetex/i) { |
return &tth_converted; |
return &mimetex_converted($string); |
} |
} |
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return &tth_converted($string); |
# ====================================================================== Footer |
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sub footer { |
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my $xmlstring=''; |
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if ($ENV{'request.state'} eq 'construct') { |
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$xmlstring.='<address>'.$errorstring.'</address>'; |
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} else { |
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&Apache::lonmsg::author_res_msg($ENV{'request.filename'},$errorstring); |
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} |
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# -------------------------------------------------------------------- End Body |
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$xmlstring.=&Apache::lonxml::xmlend(); |
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return $xmlstring; |
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} |
} |
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# ------------------------------------------------------------ Message display |
# ------------------------------------------------------------ Message display |
Line 220 sub to_convert {
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Line 250 sub to_convert {
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sub smiley { |
sub smiley { |
my $expression=shift; |
my $expression=shift; |
if ($ENV{'browser.imagesuppress'} eq 'on') { return $expression; } |
if ($env{'browser.imagesuppress'} eq 'on') { return $expression; } |
my %smileys=('\:\-\)' => 'smiley', |
my %smileys=('\:\-\)' => 'smiley', |
'8\-\)' => 'coolsmile', |
'8\-\)' => 'coolsmile', |
'8\-(I|\|)' => 'coolindiff', |
'8\-(I|\|)' => 'coolindiff', |
Line 322 sub postprocess_algebra {
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Line 352 sub postprocess_algebra {
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# moodle had these and I don't know why, ignoring them for now |
# moodle had these and I don't know why, ignoring them for now |
# $string =~s/\\fun/ /g; |
# $string =~s/\\fun/ /g; |
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# sqrt(3,4) -> \sqrt\let{3,4\right}, which is annoying |
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$string =~s/\\left\{/\{/g; |
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$string =~s/\\right\}/\}/g; |
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# remove the extra () in the denominator of a \frac |
# remove the extra () in the denominator of a \frac |
$string =~s/\\frac{(.+?)}{\\left\((.+?)\\right\)}/\\frac{$1}{$2}/gs; |
$string =~s/\\frac{(.+?)}{\\left\((.+?)\\right\)}/\\frac{$1}{$2}/gs; |
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