[WWcvs] pg: The ORIGINAL_NUM_CMP was calling str_cmp as a code reference rather

[dpvc v. a. <we...@ma...>]

Log Message:
-----------
The ORIGINAL_NUM_CMP was calling str_cmp as a code reference rather
than as the more modern AnswerEvaluator object.  This causes error
messages when string answers were used.  It now uses the evaluate()
method of the AnswerEvaluator.

Modified Files:
--------------
    pg/macros:
        PGanswermacros.pl

Revision Data
-------------
Index: PGanswermacros.pl
===================================================================
RCS file: /webwork/cvs/system/pg/macros/PGanswermacros.pl,v
retrieving revision 1.35
retrieving revision 1.36
diff -Lmacros/PGanswermacros.pl -Lmacros/PGanswermacros.pl -u -r1.35 -r1.36
--- macros/PGanswermacros.pl
+++ macros/PGanswermacros.pl
@@ -4327,7 +4327,7 @@
 	my $sensibleAnswer = 0;
 	$ans = str_filters( $ans, 'compress_whitespace' );	# remove trailing, leading, and double spaces.
 	my ($ans_eval) = str_cmp($rh_ans->{correct_ans});
-	my $temp_ans_hash = &$ans_eval($ans);
+	my $temp_ans_hash = $ans_eval->evaluate($ans);
 	$rh_ans->{test} = $temp_ans_hash;
 	
 	if ($temp_ans_hash->{score} ==1 ) {			# students answer matches the correct answer.