--- loncom/homework/default_homework.lcpm	2008/03/05 18:24:07	1.129
+++ loncom/homework/default_homework.lcpm	2008/03/06 01:54:16	1.130
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # used by lonxml::xmlparse() as input variable $safeinit to Apache::run::run()
 #
-# $Id: default_homework.lcpm,v 1.129 2008/03/05 18:24:07 www Exp $
+# $Id: default_homework.lcpm,v 1.130 2008/03/06 01:54:16 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -157,7 +157,7 @@ sub caparesponse_check {
 
     #&LONCAPA_INTERNAL_DEBUG(" type is $type ");
     if ($type eq 'cs' || $type eq 'ci') {
-	#for string answers make surec all places spaces occur, there is 
+	#for string answers make sure all places spaces occur, there is 
         #really only 1 space, in both the answer and the response
 	$answer=~s/ +/ /g;
 	$response=~s/ +/ /g;
@@ -311,7 +311,7 @@ sub caparesponse_check_list {
     if ($type eq '' || $type eq 'float') {
 	#for numerical problems split off the unit
 #	if ( $responses->[0][-1]=~ /(.*[^\s])\s+([^\s]+)/ ) {
-        if ( $responses->[0][-1]=~ /^([\d\.\,\s\$]*(?:(?:[xX\*]10[\^\*]*|[eE]*)[\+\-]*\d*)*(?:^|\S)\d)([\w\s][\$\s\w\^\*\/\(\)\+\-]*\D[\$\s\w\^\*\/\(\)\+\-]*)$/ ) {
+        if ( $responses->[0][-1]=~ /^([\d\.\,\s\$]*(?:(?:[xX\*]10[\^\*]*|[eE]*)[\+\-]*\d*)*(?:^|\S)\d+)([\$\s\w\^\*\/\(\)\+\-]*\D[\$\s\w\^\*\/\(\)\+\-]*)$/ ) {
 	    $responses->[0][-1]=$1;
 	    $unit=&capa_formula_fix($2);
             &LONCAPA_INTERNAL_DEBUG("Found unit :$unit:");