--- loncom/xml/lontexconvert.pm	2012/02/28 10:38:14	1.110
+++ loncom/xml/lontexconvert.pm	2012/05/10 19:19:30	1.112.2.1
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # TeX Conversion Module
 #
-# $Id: lontexconvert.pm,v 1.110 2012/02/28 10:38:14 foxr Exp $
+# $Id: lontexconvert.pm,v 1.112.2.1 2012/05/10 19:19:30 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -56,12 +56,41 @@ use IO::Socket::INET;
 #
 my %unicode_translations = (
     '\rightleftharpoons'  => 0x21cc,
-    ''             => 0x23a1,
-    ''             => 0x23a2,
-    ''             => 0x23a3,
-    ''             => 0x23a4,
-    ''             => 0x23a5,
-    ''             => 0x23a6   
+
+# Brackets - unicode is commented out with pure 8-bit ascii ugliness while we need it.
+
+#    ''             => 0x23a1,
+#    ''             => 0x23a2,
+#    ''             => 0x23a3,   # when unicode catches up with browsers
+#    ''             => 0x23a4,   # use these instead of the cheesey brackets below
+#    ''             => 0x23a5,
+#    ''             => 0x23a6   
+    ''              => 0x5b,
+    ''              => 0x5b,    # '['
+    ''              => 0x5b,
+    ''              => 0x5d,    # ']'
+    ''              => 0x5d,
+    ''              => 0x5d,
+
+#  Parens..again the unicode is commented out with the 8-bit ascii ugliness
+#  turned on until browsers catch up with the unicode world.
+
+#    ''              => 0x239b,
+#    ''              => 0x239c,
+#    ''              => 0x239d,
+#    ''              => 0x239e,
+#    ''              => 0x239f,
+#    ''              => 0x23a0
+
+    ''              => 0x28,
+    ''              => 0x28,      # '('
+    ''              => 0x28,
+
+    ''              => 0x29,
+    ''              => 0x29,      # '('
+    ''              => 0x29
+
+
 );
 
 ##
@@ -126,14 +155,12 @@ sub convert_real {
     };
     &Apache::lonxml::start_alarm();
     if ($env{'browser.mathml'}) {
-	&Apache::lonnet::logthis("mathml");
 	$xmlstring=&tth::ttm($$texstring);
 	$xmlstring=~s/\<math\>/\<math xmlns=\"\&mathns\;\"\>/g;
 	$xmlstring=~s/\<br\>/\<br\/\>/g;
 	$xmlstring=~s/\<p\>/\<p\>\<\/p\>/g;
 	$errorstring.=&tth::ttmerror();
     } else {
-	&Apache::lonnet::logthis("tth");
 	$xmlstring=&tth::tth($$texstring);
 	$errorstring.=&tth::ttherror();
 	$xmlstring=~s-</font(\s*)>-</font>-g;
@@ -214,47 +241,6 @@ sub displaystyle {
     return 0;
 }
 
-sub MathJax_converted {
-    my $texstring=shift;
-    my $tag='math/tex;';
-    if (&displaystyle($texstring)) { $tag='math/tex; mode=display'; }
-    &clean_out_math_mode($texstring);
-    return &MathJax_header().
-      '<script type="'.$tag.'">'.$$texstring.'</script>';
-}
-
-{
-    #Relies heavily on the previous jsMath installation
-    my @MathJax_sent_header;
-    sub MathJax_reset {
-        undef(@MathJax_sent_header);
-    }
-    sub MathJax_push {
-        push(@MathJax_sent_header,0);
-    }
-    sub MathJax_header {
-        if (!@MathJax_sent_header) {
-            &Apache::lonnet::logthis("mismatched calls of MathJax_header and MathJax_process");
-            return '';
-        }
-        return '' if $MathJax_sent_header[-1];
-        $MathJax_sent_header[-1]=1;
-        return
-          '<script type="text/javascript" src="/adm/MathJax/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>'."\n";
-    }
-    #sub MathJax_process {
-    #    my $state = pop(@MathJax_sent_header);
-    #    return '' if !$state;
-    #    return "\n".
-    #        '<script type="text/javascript">MathJax.Process()</script>'."\n";
-    #}
-    #sub MathJax_state {
-    #    my ($level) = @_;
-    #    return $MathJax_sent_header[$level];
-    #}
-}
-
-
 sub jsMath_converted {
     my $texstring=shift;
     my $tag='span';
@@ -322,11 +308,6 @@ sub init_math_support {
 	($inherit_jsmath && &jsMath_state(-2))) {
 	return &Apache::lontexconvert::jsMath_header();
     }
-    &Apache::lontexconvert::MathJax_push();
-    if (lc(&tex_engine()) eq 'mathjax') { # ||
-        #($inherit_jsmath && &jsMath_state(-2))) {
-        return &Apache::lontexconvert::MathJax_header();
-    }
     return;
 }
 
@@ -387,8 +368,6 @@ sub converted {
 	return &tth_converted($string);
     } elsif ($mode =~ /jsmath/i) {
 	return &jsMath_converted($string);
-    } elsif ($mode =~ /mathjax/i) {
-	return &MathJax_converted($string);
     } elsif ($mode =~ /mimetex/i) {
 	return &mimetex_converted($string);
     } elsif ($mode =~ /raw/i) {
@@ -597,9 +576,6 @@ Header
 
 =item jsMath_converted()
 
-=item MathJax_converted()
-	- Mimics the jsMath functionality
-
 =item tex_engine()