[WWcvs] pg: Allow multi-letter variable names and names like x1, x2, etc.

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

Log Message:
-----------
Allow multi-letter variable names and names like x1, x2, etc.

Modified Files:
--------------
    pg/lib/Parser/Context:
        Variables.pm

Revision Data
-------------
Index: Variables.pm
===================================================================
RCS file: /webwork/cvs/system/pg/lib/Parser/Context/Variables.pm,v
retrieving revision 1.9
retrieving revision 1.10
diff -Llib/Parser/Context/Variables.pm -Llib/Parser/Context/Variables.pm -u -r1.9 -r1.10
--- lib/Parser/Context/Variables.pm
+++ lib/Parser/Context/Variables.pm
@@ -27,7 +27,7 @@
   $self->{dataName} = 'variables';
   $self->{name} = 'variable';
   $self->{Name} = 'Variable';
-  $self->{namePattern} = '[a-zA-Z]';
+  $self->{namePattern} = '[a-zA-Z][a-zA-Z0-9]*';
   $self->{pattern} = $self->{namePattern};
 }