--- ray/src/util/setscan.c	1991/03/12 13:07:40	1.1
+++ ray/src/util/setscan.c	1991/11/12 17:19:09	2.1
@@ -1,14 +1,18 @@
 /* Copyright (c) 1991 Regents of the University of California */
 
-/* SCCSid "$SunId$ LBL" */
+#ifndef lint
+static char SCCSid[] = "$SunId$ LBL";
+#endif
 
-/* Copyright (c) 1991 Regents of the University of California */
+/*
+ * Convert angle ranges of the form a-b:s,c to discrete values
+ */
 
 #include <ctype.h>
 
-#define  ANGLE		short
-#define  AEND		(-11111)
+#include "setscan.h"
 
+
 setscan(ang, arg)			/* set up scan according to arg */
 register ANGLE  *ang;
 register char  *arg;
@@ -34,7 +38,7 @@ register char  *arg;
 		default:
 			return(-1);
 		}
-		if (!isdigit(*arg) && *arg != '-' && *arg != '+')
+		if (!isdigit(*arg))
 			return(-1);
 		do
 			arg++;