--- loncom/homework/optionresponse.pm	2006/03/15 00:08:53	1.134
+++ loncom/homework/optionresponse.pm	2006/03/15 17:10:49	1.135
@@ -1,7 +1,7 @@
 # LearningOnline Network with CAPA
 # option list style responses
 #
-# $Id: optionresponse.pm,v 1.134 2006/03/15 00:08:53 foxr Exp $
+# $Id: optionresponse.pm,v 1.135 2006/03/15 17:10:49 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -481,65 +481,6 @@ sub displayfoils {
 }
 
 
-#  Correct a single option list element.
-#  - For embedded <display></display> tags,
-#    we pass literally the stuff between them.
-#  - For everything else, we run through latex_special_symbols
-#    so that any symbols that have meaning to LaTeX will be
-#    correctly escaped.
-#
-sub correct_option {
-    my $option = shift;
-
-
-    # There's probably a beter way with perl if I was
-    # more of a regexp wiz..(RF).
-
-    my $strlen = length($option);
-    my $here   = 0;		# Where to start searching for <display></display>
-    my $result ="";		# The return string is built here.
-    
-    while ($here < $strlen) {
-	# look for an opening <display> tag:
-
-	my $openloc = index($option, "<display>", $here);
-	if ($openloc == -1) {
-	    # No more... operate with latex_special_symbols on
-	    # the rest of the string.
-
-	    $result .= &Apache::lonxml::latex_special_symbols(substr($option, $here));
-	    return $result;
-	} else {
-	    # Need to pass the string up to the <display> tag 
-	    # through l_s_s ...
-	    $result .= &Apache::lonxml::latex_special_symbols(substr($option, $here, $openloc-$here));
-	}
-	# look for the closing </display> tag...
-	# We're a bit stupid..or tolerant...
-	# in that if the user forgets the </display> tag
-	# we infer they intended one at the end of the option.
-	$openloc += 9;		# 9 chars in <display>
-
-	my $closeloc = index($option, "</display>", $openloc); # 9 chars in <display>
-	if ($closeloc == -1) {
-	    $closeloc = $strlen + 9;                             # 10chars in </display> faked off end. 
-	}
-	#  Pass from openloc through closeloc without any interpretation:
-
-	&Apache::lonnet::logthis("Segment inside display: $openloc through $closeloc");
-	$result .= substr($option, $openloc, $closeloc - $openloc);
-	$here    = $closeloc + 10;                               # Next search is after the </display> 
-    }
-
-    return $result;
-
-    # return &Apache::lonxml::latex_special_symbols($option);
-}
-
-#  Correct the option list elements so that if there
-#  are special symbosl that have meaning to LaTeX
-#  they get fixed up to display correctly.
-
 sub optionlist_correction {
     my ($TeXlayout,@options) = @_;
     my $texoptionlist='\\item [] Choices: ';
@@ -547,7 +488,7 @@ sub optionlist_correction {
     if (scalar(@options) > 0) {
 	foreach my $option (@options) {
 	    $texoptionlist.='{\bf '.
-		&correct_option($option).
+		&Apache::lonxml::latex_special_symbols($option).
 		'}';
 	    if ($TeXlayout eq 'vertical') {
 		$texoptionlist.=' \vskip 0 mm ',