--- ray/src/cv/mgflib/mgfilt.c	1994/06/21 14:45:45	1.1
+++ ray/src/cv/mgflib/mgfilt.c	1995/02/11 09:54:29	1.2
@@ -1,4 +1,4 @@
-/* Copyright (c) 1994 Regents of the University of California */
+/* Copyright (c) 1995 Regents of the University of California */
 
 #ifndef lint
 static char SCCSid[] = "$SunId$ LBL";
@@ -25,22 +25,38 @@ register char	**av;
 }
 
 
-main(argc, argv)	/* arguments are understood entities */
+main(argc, argv)	/* first argument is understood entities, comma-sep. */
 int	argc;
-char	**argv;
+char	*argv[];
 {
+	char	*cp1, *cp2;
 	int	i, en;
 
-	for (i = 1; i < argc; i++) {
-		en = mg_entity(argv[i]);
+	if (argc < 2) {
+		fprintf(stderr, "Usage: %s entity,list [file ..]\n", argv[0]);
+		exit(1);
+	}
+	for (cp1 = cp2 = argv[1]; *cp1; cp1 = cp2) {
+		while (*cp2) {
+			if (*cp2 == ',') {
+				*cp2++ = '\0';
+				break;
+			}
+			cp2++;
+		}
+		en = mg_entity(cp1);
 		if (en < 0) {
 			fprintf(stderr, "%s: %s: no such entity\n",
-					argv[0], argv[i]);
+					argv[0], cp1);
 			exit(1);
 		}
 		mg_ehand[en] = put_entity;
 	}
 	mg_init();
-	en = mg_load((char *)NULL);
-	exit(en != MG_OK);
+	if (argc < 3)
+		exit(mg_load((char *)NULL) != MG_OK);
+	for (i = 2; i < argc; i++)
+		if (mg_load(argv[i]) != MG_OK)
+			exit(1);
+	exit(0);
 }