/******************************************************************************
**
** mycopy3_clp.c
**
** Fri Jan 18 21:49:45 2008
** Linux 2.6.23 (#7 Sun Dec 30 16:20:21 CET 2007) i686
** linux@mgpc (Michael Geng)
**
** C file for command line parser
**
** Automatically created by genparse v0.7.6
**
** See http://genparse.sourceforge.net for details and updates
**
******************************************************************************/

#include <string.h>
#include <stdlib.h>
#include <getopt.h>
#include "mycopy3_clp.h"

static struct option const long_options[] =
{
  {"iterations", required_argument, NULL, 'i'},
  {"outfile", required_argument, NULL, 'o'},
  {"help", no_argument, NULL, 'h'},
  {"version", no_argument, NULL, 'v'},
  {NULL, 0, NULL, 0}
};

/*----------------------------------------------------------------------------
**
** Cmdline ()
**
** Parse the argv array of command line parameters
**
**--------------------------------------------------------------------------*/

void Cmdline (struct arg_t *my_args, int argc, char *argv[])
{
  extern char *optarg;
  extern int optind;
  int c;
  int errflg = 0;

  my_args->i = 1;
  my_args->o = NULL;
  my_args->h = false;
  my_args->v = false;

  optind = 0;
  while ((c = getopt_long (argc, argv, "i:o:hv", long_options, &optind)) != EOF)
    {
      switch (c)
        {
        case 'i':
          my_args->i = atoi (optarg);
          if (my_args->i < 0)
            {
              fprintf (stderr, "parameter range error: i must be >= 0\n");
              errflg++;
            }
          break;

        case 'o':
          my_args->o = optarg;
          break;

        case 'h':
          my_args->h = true;
          usage (EXIT_SUCCESS, argv[0]);
          break;

        case 'v':
          my_args->v = true;
          break;

        default:
          usage (EXIT_FAILURE, argv[0]);

        }
    } /* while */

  if (errflg)
    usage (EXIT_FAILURE, argv[0]);

  if (optind >= argc)
    my_args->optind = 0;
  else
    my_args->optind = optind;
}

/*----------------------------------------------------------------------------
**
** usage ()
**
** Print out usage information, then exit
**
**--------------------------------------------------------------------------*/

void usage (int status, char *program_name)
{
  if (status != EXIT_SUCCESS)
    fprintf (stderr, "Try `%s --help' for more information.\n",
            program_name);
  else
    {
      printf ("\
usage: %s [ -iohv ] file\n\
Print a file for a number of times to stdout.\n\
   [ -i ] [ --iterations ] (type=INTEGER, range=0..., default=1)\n\
          Number of times to output <file>.\n\
          File should be text format!\n\
   [ -o ] [ --outfile ] (type=STRING)\n\
          Output file name.\n\
   [ -h ] [ --help ] (type=FLAG)\n\
          Display this help and exit.\n\
   [ -v ] [ --version ] (type=FLAG)\n\
          Output version information and exit.\n", program_name);
    }
  exit (status);
}