version 1.31, 2004/03/04 15:40:22
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version 1.43, 2005/02/11 16:46:38
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Line 36
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Line 36
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# The C source of the Code may not be distributed by the Licensee |
# The C source of the Code may not be distributed by the Licensee |
# to any other parties under any circumstances. |
# to any other parties under any circumstances. |
# |
# |
# 05/29/00,05/30,10/11,10/20 Gerd Kortemeyer |
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# 5/4 Gerd Kortemeyer |
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package Apache::lontexconvert; |
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(); |
use Apache::lonmsg; |
use Apache::lonmsg(); |
use Apache::lonxml; |
use Apache::lonxml(); |
use Apache::lonmenu; |
use Apache::lonmenu(); |
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use Apache::lonlocal; |
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# ====================================================================== Header |
# ====================================================================== Header |
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Line 75 sub header {
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Line 74 sub header {
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my $time=time; |
my $time=time; |
&init_tth(); |
&init_tth(); |
return &Apache::lonxml::xmlbegin(). |
return &Apache::lonxml::xmlbegin(). |
&Apache::lonxml::fontsettings(). |
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"\n<head>\n". |
"\n<head>\n". |
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&Apache::lonxml::fontsettings(). |
&Apache::lonmenu::registerurl(undef,'tex'). |
&Apache::lonmenu::registerurl(undef,'tex'). |
"\n</head>\n"; |
"\n</head>\n"; |
} |
} |
Line 84 sub header {
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Line 83 sub header {
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# ================================================================== Conversion |
# ================================================================== Conversion |
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$Apache::lontexconvert::messedup=0; |
$Apache::lontexconvert::messedup=0; |
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# we need this routine because &converted can get called from inside |
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# of the safespace (through &xmlparse('<m>stuff</m>') which doesn't |
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# allow the opcode for alarm, so we need to compile this before we get |
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# into the safe space since opcode checks only occur at compile time |
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sub convert_real { |
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my ($texstring)=@_; |
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my ($xmlstring,$errorstring); |
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local $SIG{SEGV}=sub { $Apache::lontexconvert::messedup=1; die; }; |
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local $SIG{ALRM}=sub { |
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&Apache::lonnet::logthis("ALRM"); |
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$xmlstring='['.&mt("TeX unconverted due to errors").']'; |
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$Apache::lontexconvert::messedup=1; |
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die &mt("TeX unconverted due to errors"); |
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}; |
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alarm($Apache::lonnet::perlvar{'lonScriptTimeout'}); |
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if ($ENV{'browser.mathml'}) { |
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$xmlstring=&tth::ttm($$texstring); |
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$xmlstring=~s/\<math\>/\<math xmlns=\"\&mathns\;\"\>/g; |
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$xmlstring=~s/\<br\>/\<br\/\>/g; |
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$xmlstring=~s/\<p\>/\<p\>\<\/p\>/g; |
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$errorstring.=&tth::ttmerror(); |
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} else { |
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$xmlstring=&tth::tth($$texstring); |
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$errorstring.=&tth::ttherror(); |
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$xmlstring=~s-</font(\s*)>-</font>-g; |
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} |
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$xmlstring=~s/^\s*\<br clear\=\"all\"/\<br/s; |
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$xmlstring=~s/^\s*//; |
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$xmlstring=~s/\s*$//; |
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alarm(0); |
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return ($xmlstring,$errorstring); |
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} |
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sub converted { |
sub converted { |
my $texstring=shift; |
my $texstring=shift; |
my $xmlstring='[UNDISPLAYABLE]'; |
my $xmlstring='['.&mt('UNDISPLAYABLE').']'; |
if ($Apache::lontexconvert::messedup) { |
if ($Apache::lontexconvert::messedup) { |
return '[TeX Unconverted Due To Previous Errors]'; |
return '['.&mt('TeX unconverted due to previous errors').']'; |
} |
} |
eval(<<'ENDCONV'); |
eval(<<'ENDCONV'); |
{ |
($xmlstring,$errorstring)=&convert_real($texstring) |
local $SIG{SEGV}=sub { $Apache::lontexconvert::messedup=1; die; }; |
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if ($ENV{'browser.mathml'}) { |
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$xmlstring=&tth::ttm($$texstring); |
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$xmlstring=~s/\<math\>/\<math xmlns=\"\&mathns\;\"\>/g; |
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$xmlstring=~s/\<br\>/\<br\/\>/g; |
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$xmlstring=~s/\<p\>/\<p\>\<\/p\>/g; |
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$errorstring.=&tth::ttmerror(); |
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} else { |
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$xmlstring=&tth::tth($$texstring); |
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$errorstring.=&tth::ttherror(); |
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$xmlstring=~s-</font(\s*)>-</font>-g; |
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} |
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$xmlstring=~s/^\s*//; |
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$xmlstring=~s/\s*$//; |
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} |
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ENDCONV |
ENDCONV |
if ($Apache::lontexconvert::messedup || &tth::tthmessedup()) { |
if ($@) { |
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$errorstring.=&mt("Evaluation Error: ").$@; |
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$Apache::lontexconvert::messedup=1; |
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} |
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if ($Apache::lontexconvert::messedup || &tth::tthmessedup() || |
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$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(); |
my $request=Apache->request(); |
Line 166 sub smiley {
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Line 189 sub smiley {
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} |
} |
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sub msgtexconverted { |
sub msgtexconverted { |
my $message=shift; |
my ($message,$email) = @_; |
my $email=shift; |
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$errorstring=''; |
$errorstring=''; |
&init_tth(); |
&init_tth(); |
my $outmessage=''; |
my $outmessage=''; |