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Name	Size	Permission
arrayfuns.hlp	1.79 KB	-rw-r--r--
base64funs.hlp	5.92 KB	-rw-r--r--
chksumfuns.hlp	1.82 KB	-rw-r--r--
cmdopt.hlp	6.83 KB	-rw-r--r--
csvfuns.hlp	14.14 KB	-rw-r--r--
forkfuns.hlp	5.42 KB	-rw-r--r--
fswalk.hlp	4.2 KB	-rw-r--r--
glob.hlp	458 B	-rw-r--r--
histfuns.hlp	7.08 KB	-rw-r--r--
jsonfuns.hlp	3.15 KB	-rw-r--r--
listfuns.hlp	5.68 KB	-rw-r--r--
onigfuns.hlp	5.3 KB	-rw-r--r--
pcrefuns.hlp	6.45 KB	-rw-r--r--
pngfuns.hlp	8.86 KB	-rw-r--r--
print.hlp	1.92 KB	-rw-r--r--
process.hlp	7.45 KB	-rw-r--r--
profile.hlp	3.38 KB	-rw-r--r--
randfuns.hlp	15.06 KB	-rw-r--r--
readascii.hlp	4.7 KB	-rw-r--r--
require.hlp	2.38 KB	-rw-r--r--
setfuns.hlp	3.33 KB	-rw-r--r--
slsmg.hlp	12.42 KB	-rw-r--r--
sockfuns.hlp	6.34 KB	-rw-r--r--
statsfuns.hlp	24.29 KB	-rw-r--r--
structfuns.hlp	2.48 KB	-rw-r--r--

Code Editor : cmdopt.hlp

cmdopt_new

SYNOPSIS
  Create a cmdopt object for parsing command-line options

USAGE
  obj = cmdopt_new (Ref_Type error_routine)

DESCRIPTION
  This function creates an returns an object that may be used by the
  `cmdopt_process' function to parse command line arguments.  The
  `cmdopt_new' function takes a reference to an error handling
  function that will get called upon error.  In most cases, this
  function should print out the error message, display a usage
  message, and then call `exit'.  If the error handler is NULL,
  or it returns instead of calling exit, then an exception will be thrown.

The error handler must be defined to take a single string argument
  (the error message) and must return nothing.

EXAMPLE

require ("cmdopt");
   private define help_callback ()
   {
     () = fputs ("Usage: pgm [options] infile\n", stderr);
     () = fputs ("Options:\n", stderr);
     () = fputs (" -h|--help           Show this help\n", stderr);
     () = fputs (" -v|--verbose        Increase verbosity level\n", stderr);
     () = fputs (" -o|--output         Output filename [stdout]\n", stderr);
     exit (1);
   }
   private define error_handler (text)
   {
      () = fprintf (stderr, "%s\n", text);
      help_callback ();
   }
   define slsh_main ()
   {
      variable verbose = 0;
      outfile = "-";   % stdout
      variable c = cmdopt_new (&error_handler);
      cmdopt_add (c, "v|verbose", &verbose; inc);
      cmdopt_add (c, "h|help", &help_callback);
      cmdopt_add (c, "s:o|output", &outfile; type="str");
      variable iend = cmdopt_process (c, __argv, 1);

if (verbose) message ("some informative message");
      variable fp = stdout;
      if (outfile != "-") fp = fopen (outfile, "w");
        .
        .
    }

${this.title}

Code Editor : cmdopt.hlp