version 1.36, 2004/03/19 17:54:17
|
version 1.51, 2005/02/24 09:28:54
|
Line 36
|
Line 36
|
# 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 |
|
# 5/4 Gerd Kortemeyer |
|
|
|
package Apache::lontexconvert; |
package Apache::lontexconvert; |
|
|
Line 76 sub header {
|
Line 74 sub header {
|
my $time=time; |
my $time=time; |
&init_tth(); |
&init_tth(); |
return &Apache::lonxml::xmlbegin(). |
return &Apache::lonxml::xmlbegin(). |
&Apache::lonxml::fontsettings(). |
|
"\n<head>\n". |
"\n<head>\n". |
|
&Apache::lonxml::fontsettings(). |
&Apache::lonmenu::registerurl(undef,'tex'). |
&Apache::lonmenu::registerurl(undef,'tex'). |
"\n</head>\n"; |
"\n</head>\n"; |
} |
} |
Line 95 sub convert_real {
|
Line 93 sub convert_real {
|
my ($xmlstring,$errorstring); |
my ($xmlstring,$errorstring); |
local $SIG{SEGV}=sub { $Apache::lontexconvert::messedup=1; die; }; |
local $SIG{SEGV}=sub { $Apache::lontexconvert::messedup=1; die; }; |
local $SIG{ALRM}=sub { |
local $SIG{ALRM}=sub { |
|
&Apache::lonnet::logthis("ALRM"); |
$xmlstring='['.&mt("TeX unconverted due to errors").']'; |
$xmlstring='['.&mt("TeX unconverted due to errors").']'; |
$Apache::lontexconvert::messedup=1; |
$Apache::lontexconvert::messedup=1; |
die &mt("TeX unconverted due to errors"); |
die &mt("TeX unconverted due to errors"); |
Line 111 sub convert_real {
|
Line 110 sub convert_real {
|
$errorstring.=&tth::ttherror(); |
$errorstring.=&tth::ttherror(); |
$xmlstring=~s-</font(\s*)>-</font>-g; |
$xmlstring=~s-</font(\s*)>-</font>-g; |
} |
} |
|
$xmlstring=~s/^\s*\<br clear\=\"all\"/\<br/s; |
$xmlstring=~s/^\s*//; |
$xmlstring=~s/^\s*//; |
$xmlstring=~s/\s*$//; |
$xmlstring=~s/\s*$//; |
alarm(0); |
alarm(0); |
Line 130 ENDCONV
|
Line 130 ENDCONV
|
$errorstring.=&mt("Evaluation Error: ").$@; |
$errorstring.=&mt("Evaluation Error: ").$@; |
$Apache::lontexconvert::messedup=1; |
$Apache::lontexconvert::messedup=1; |
} |
} |
if ($Apache::lontexconvert::messedup || &tth::tthmessedup()) { |
if ($Apache::lontexconvert::messedup || &tth::tthmessedup() || |
|
$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 188 sub smiley {
|
Line 189 sub smiley {
|
} |
} |
|
|
sub msgtexconverted { |
sub msgtexconverted { |
my $message=shift; |
my ($message,$email) = @_; |
my $email=shift; |
|
$errorstring=''; |
$errorstring=''; |
&init_tth(); |
&init_tth(); |
my $outmessage=''; |
my $outmessage=''; |
Line 212 sub msgtexconverted {
|
Line 212 sub msgtexconverted {
|
} |
} |
} |
} |
|
|
|
sub algebra { |
|
use AlgParser; |
|
|
|
my ($string,$target)=@_; |
|
my $parser = new AlgParserWithImplicitExpand; |
|
$string=&prepare_algebra($string); |
|
my $ret = $parser->parse($string); |
|
my $result='['.&mt('Algebra unconverted due to previous errors').']'; |
|
if ( ref($ret) ) { |
|
#$parser->tostring(); |
|
$parser->normalize(); |
|
my $latex=$parser->tolatex(); |
|
$latex=&postprocess_algebra($latex); |
|
$latex='$'.$latex.'$'; |
|
if ($target eq 'web' || $target eq 'analyze') { |
|
$result = &converted(\$latex); |
|
} else { |
|
$result = $latex; |
|
} |
|
} else { |
|
&Apache::lonxml::error($parser->{'htmlerror'}); |
|
} |
|
} |
|
|
|
sub prepare_algebra { |
|
my ($string)=@_; |
|
|
|
# makes the decision about what is a minus sign easier supposedly |
|
$string =~ s/([\=\>\<\%\!\#] *)-/$1 zeroplace -/g; |
|
|
|
return $string; |
|
} |
|
|
|
sub postprocess_algebra { |
|
my ($string)=@_; |
|
|
|
# moodle had these and I don't know why, ignoring them for now |
|
# $string =~s/\\fun/ /g; |
|
|
|
# sqrt(3,4) -> \sqrt\let{3,4\right}, which is annoying |
|
$string =~s/\\left\{/\{/g; |
|
$string =~s/\\right\}/\}/g; |
|
|
|
# sqrt(3,4) means the 4 root of 3 |
|
$string =~s/\\sqrt{([^,]+),([^}]+)}/\\sqrt[$2]{$1}/gs; |
|
|
|
&Apache::lonnet::logthis($string); |
|
return $string; |
|
} |
1; |
1; |
__END__ |
__END__ |
|
|