--- ray/src/common/rexpr.c	1991/07/16 10:51:42	1.2
+++ ray/src/common/rexpr.c	1991/09/05 15:03:48	1.3
@@ -245,7 +245,7 @@ register char *ep;
                 return(0);
 
         case CBRC:
-                if (lp == expbuf)
+                if (lp == alp)
                         continue;
                 if ((isalnum(*lp) || *lp == '_') && !(isalnum(lp[-1]) || lp[-1] == '_'))
                         continue;