[brlcad-commits] SF.net SVN: brlcad:[55665] brlcad/trunk/src/sig/dwin.c

[carlmoore]

Revision: 55665
          http://sourceforge.net/p/brlcad/code/55665
Author:   carlmoore
Date:     2013-06-04 20:28:02 +0000 (Tue, 04 Jun 2013)
Log Message:
-----------
implement -h and -? for help, specify usage of files (not stdin/stdout), and 
change old h to H

Modified Paths:
--------------
    brlcad/trunk/src/sig/dwin.c

Modified: brlcad/trunk/src/sig/dwin.c
===================================================================
--- brlcad/trunk/src/sig/dwin.c 2013-06-04 20:05:46 UTC (rev 55664)
+++ brlcad/trunk/src/sig/dwin.c 2013-06-04 20:28:02 UTC (rev 55665)
@@ -67,9 +67,10 @@
 void coswin(double *data, int length, double percent);
 
 static const char usage[] = "\
-Usage: dwin [options] [width (1024)] [step (width)] [start]\n\
+Usage: dwin [options] [width (1024)] [step (width)] [start] <inputfile 
>outputfile\n\
+  Options:\n\
   -w  apply window (80%% split Cosine)\n\
-  -h  apply Hamming window\n\
+  -H  apply Hamming window\n\
   -b  apply Bartlett window (triangle)\n\
   -B  apply bias window (half triangle)\n\
   -e  start first sample at end of buffer\n\
@@ -81,14 +82,13 @@
     int L, step;
     size_t ret;
 
-    if (isatty(fileno(stdin)) || isatty(fileno(stdout))) {
+    if (isatty(fileno(stdin)) || isatty(fileno(stdout)))
        bu_exit(1, "%s", usage);
-    }
 
     while (argc > 1) {
        if (BU_STR_EQUAL(argv[1], "-w")) {
            window++;
-       } else if (BU_STR_EQUAL(argv[1], "-h")) {
+       } else if (BU_STR_EQUAL(argv[1], "-H")) {
            window++;
            hamming++;
        } else if (BU_STR_EQUAL(argv[1], "-B")) {
@@ -101,8 +101,11 @@
            endwin++;
        } else if (BU_STR_EQUAL(argv[1], "-m")) {
            midwin++;
-       } else
-           break;
+       } else {
+           if ( ! BU_STR_EQUAL(argv[1], "-h") && ! BU_STR_EQUAL(argv[1], "-?") 
)
+               fprintf(stderr,"dwin: illegal option %s\n",argv[1]);
+           bu_exit(1, "%s", usage);
+       }
        argc--;
        argv++;
     }

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