[brlcad-commits] SF.net SVN: brlcad:[55537] brlcad/trunk/src/proc-db/brickwall.c

[<car...@us...>]

Revision: 55537
          http://sourceforge.net/p/brlcad/code/55537
Author:   carlmoore
Date:     2013-05-22 18:39:44 +0000 (Wed, 22 May 2013)
Log Message:
-----------
implement -? and no-arguments; switch over to use of getopt's error messages; have not yet resolved -h

Modified Paths:
--------------
    brlcad/trunk/src/proc-db/brickwall.c

Modified: brlcad/trunk/src/proc-db/brickwall.c
===================================================================
--- brlcad/trunk/src/proc-db/brickwall.c	2013-05-22 17:56:14 UTC (rev 55536)
+++ brlcad/trunk/src/proc-db/brickwall.c	2013-05-22 18:39:44 UTC (rev 55537)
@@ -34,7 +34,7 @@
 #include "vmath.h"
 
 /* declarations to support use of bu_getopt() */
-char *options = "w:h:d:W:H:sn:t:Du:mc:C:";
+char *options = "w:h:d:W:H:sn:t:Du:mc:C:?";
 
 char *progname = "(noname)";
 double brick_width=8.0;
@@ -87,9 +87,6 @@
     else
 	++progname;
 
-    /* Turn off getopt's error messages */
-    bu_opterr = 0;
-
     /* get all the option flags from the command line */
     while ((c=bu_getopt(ac, av, options)) != -1)
 	switch (c) {
@@ -151,9 +148,8 @@
 	    case 's':
 		standalone = !standalone;
 		break;
-	    case '?':
 	    default:
-		usage("bad command line option\n");
+		usage("\n");
 		break;
 	}
 
@@ -327,13 +323,15 @@
     double horiz_spacing;
     double vert_spacing;
 
+    if (ac == 1 && isatty(fileno(stdin)) && isatty(fileno(stdout)))
+	usage("\n");
 
     /* parse command flags, and make sure there are arguments
      * left over for processing.
      */
-    if (parse_args(ac, av) < ac) usage("Excess command line arguments\n");
+    if (parse_args(ac, av) < ac)
+	usage("Excess command line arguments\n");
 
-
     /* build the wall
 
        if (debug)

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