loncom/xml/londefdef.pm - diff

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Diff for /loncom/xml/londefdef.pm between versions 1.456.2.3 and 1.456.2.6

-version 1.456.2.3, 2017/01/30 20:14:31
+version 1.456.2.6, 2021/12/14 21:10:40
  Line 92  sub start_m {
      my $inside = &Apache::lonxml::get_all_text_unbalanced("/m",$parser);
      if ($target eq 'web' || $target eq 'analyze') {
  	&Apache::lonxml::debug("M is starting with:$inside:");
+         if (!($inside =~ /^\s*\$.*\$\s*$/ || $inside =~ /^\s*\\[([].*\\[)\]]\s*$/)) {
+             # Non-math LaTeX will not be rendered correctly with MathJax
+             # and it should be avoided anyway.
+             # On top of that, MathJax will render math without $, but
+             # it will fail with tth. This is worth a warning.
+             # (even though some people might just use latex for printing)
+             &Apache::lonxml::warning(&mt('Missing $ in [_1].','&lt;m&gt;'));
+         } elsif (($env{'browser.type'} eq 'safari') && ($env{'form.editxmltext'}) &&
+                  (($env{'form.problemmode'} eq 'view') || ($env{'form.problemmode'} eq 'discard'))) {
+             my $delimiter;
+             if ($inside =~ /\$$/) {
+                 $delimiter = '$';
+             } elsif ($inside =~ /\\([)\]])$/) {
+                 $delimiter = $1;
+             }
+             if ($delimiter) {
+                 &Apache::lonxml::warning(&mt('Insert a space between [_1] and [_2].',
+                                              $delimiter,'&lt;/m&gt;'));
+             }
+         }
  	my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
  	if ($eval eq 'on') {
  	    $inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);

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Removed from v.1.456.2.3
changed lines
	Added in v.1.456.2.6