version 1.108, 2011/06/06 16:08:45
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version 1.112.2.2, 2012/05/25 16:42:28
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Line 50 use LONCAPA;
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Line 50 use LONCAPA;
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use URI::Escape; |
use URI::Escape; |
use IO::Socket::INET; |
use IO::Socket::INET; |
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# |
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# Table of substitutions to unicode characters. |
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# |
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my %unicode_translations = ( |
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'\rightleftharpoons' => 0x21cc, |
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# Brackets - unicode is commented out with pure 8-bit ascii ugliness while we need it. |
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# '' => 0x23a1, |
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# '' => 0x23a2, |
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# '' => 0x23a3, # when unicode catches up with browsers |
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# '' => 0x23a4, # use these instead of the cheesey brackets below |
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# '' => 0x23a5, |
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# '' => 0x23a6 |
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'' => 0x5b, |
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'' => 0x5b, # '[' |
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'' => 0x5b, |
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'' => 0x5d, # ']' |
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'' => 0x5d, |
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'' => 0x5d, |
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# Parens..again the unicode is commented out with the 8-bit ascii ugliness |
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# turned on until browsers catch up with the unicode world. |
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# '' => 0x239b, |
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# '' => 0x239c, |
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# '' => 0x239d, |
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# '' => 0x239e, |
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# '' => 0x239f, |
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# '' => 0x23a0 |
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'' => 0x28, |
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'' => 0x28, # '(' |
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'' => 0x28, |
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'' => 0x29, |
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'' => 0x29, # '(' |
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'' => 0x29 |
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); |
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## |
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# Utility to convert elements of a string to unicode: |
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# |
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# @param input - Input string |
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# @param pattern - Pattern to convert |
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# @param unicode - Unicode to substitute for pattern. |
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# |
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# @return string - resulting string. |
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# |
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sub unicode_subst { |
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my ($input, $pattern, $unicode) = @_; |
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my $char = pack('U', $unicode); |
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$input =~ s/$pattern/$char/g; |
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return $input; |
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} |
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# ====================================================================== Header |
# ====================================================================== Header |
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sub init_tth { |
sub init_tth { |
Line 106 sub convert_real {
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Line 168 sub convert_real {
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$xmlstring=~s/^\s*\<br clear\=\"all\"/\<br/s; |
$xmlstring=~s/^\s*\<br clear\=\"all\"/\<br/s; |
$xmlstring=~s/^\s*//; |
$xmlstring=~s/^\s*//; |
$xmlstring=~s/\s*$//; |
$xmlstring=~s/\s*$//; |
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&Apache::lonxml::end_alarm(); |
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# |
# |
# \rightleftharpoons is not converted by tth but maps |
# Several strings produced by tth require |
# reasonably well to ⇔. If we get many more of these, |
# transliteration -> unicode equivalents to render reliably |
# we're going to need to have a translation sub. |
# in browsers. %unicode_translations is a table of |
# |
# string->substitution which we now apply: |
my $lrharpoon = pack("U", 0x21cc); |
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$xmlstring=~s/\\rightleftharpoons/$lrharpoon/g; |
foreach my $pattern (keys(%unicode_translations)) { |
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my $unicode = $unicode_translations{$pattern}; |
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$xmlstring = &unicode_subst($xmlstring, $pattern, $unicode); |
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} |
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&Apache::lonxml::end_alarm(); |
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return ($xmlstring,$errorstring); |
return ($xmlstring,$errorstring); |
} |
} |
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Line 174 sub displaystyle {
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Line 241 sub displaystyle {
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return 0; |
return 0; |
} |
} |
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sub MathJax_converted { |
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my $texstring=shift; |
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my $tag='math/tex;'; |
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if (&displaystyle($texstring)) { $tag='math/tex; mode=display'; } |
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&clean_out_math_mode($texstring); |
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return &MathJax_header(). |
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'<script type="'.$tag.'">'.$$texstring.'</script>'; |
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} |
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{ |
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#Relies heavily on the previous jsMath installation |
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my @MathJax_sent_header; |
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sub MathJax_reset { |
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undef(@MathJax_sent_header); |
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} |
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sub MathJax_push { |
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push(@MathJax_sent_header,0); |
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} |
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sub MathJax_header { |
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if (!@MathJax_sent_header) { |
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&Apache::lonnet::logthis("mismatched calls of MathJax_header and MathJax_process"); |
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return ''; |
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} |
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return '' if $MathJax_sent_header[-1]; |
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$MathJax_sent_header[-1]=1; |
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return |
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'<script type="text/javascript" src="/adm/MathJax/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>'."\n"; |
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} |
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} |
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sub jsMath_converted { |
sub jsMath_converted { |
my $texstring=shift; |
my $texstring=shift; |
my $tag='span'; |
my $tag='span'; |
Line 241 sub init_math_support {
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Line 338 sub init_math_support {
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($inherit_jsmath && &jsMath_state(-2))) { |
($inherit_jsmath && &jsMath_state(-2))) { |
return &Apache::lontexconvert::jsMath_header(); |
return &Apache::lontexconvert::jsMath_header(); |
} |
} |
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&Apache::lontexconvert::MathJax_push(); |
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if (lc(&tex_engine()) eq 'mathjax') { # || |
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#($inherit_jsmath && &jsMath_state(-2))) { |
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return &Apache::lontexconvert::MathJax_header(); |
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} |
return; |
return; |
} |
} |
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Line 301 sub converted {
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Line 403 sub converted {
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return &tth_converted($string); |
return &tth_converted($string); |
} elsif ($mode =~ /jsmath/i) { |
} elsif ($mode =~ /jsmath/i) { |
return &jsMath_converted($string); |
return &jsMath_converted($string); |
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} elsif ($mode =~ /mathjax/i) { |
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return &MathJax_converted($string); |
} elsif ($mode =~ /mimetex/i) { |
} elsif ($mode =~ /mimetex/i) { |
return &mimetex_converted($string); |
return &mimetex_converted($string); |
} elsif ($mode =~ /raw/i) { |
} elsif ($mode =~ /raw/i) { |
Line 509 Header
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Line 613 Header
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=item jsMath_converted() |
=item jsMath_converted() |
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=item MathJax_converted() |
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- Mimics the jsMath functionality |
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=item tex_engine() |
=item tex_engine() |
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