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/******************************************************************************
**
** double_clp.c
**
** Sun Nov 13 12:56:09 2016
** Linux 4.6.0 (#7 Fri Jun 17 22:37:23 CEST 2016) i686
** linux@mgpc (Michael Geng)
**
** C file for command line parser
**
** Automatically created by genparse v0.9.3
**
** See http://genparse.sourceforge.net for details and updates
**
******************************************************************************/
#include <string.h>
#include <stdlib.h>
#include <getopt.h>
#include "error.h"
#include "xstrtod.h"
#include "xstrtod.h"
#include "double_clp.h"
static struct option const long_options[] =
{
{"aparam", required_argument, NULL, 'a'},
{"bparam", required_argument, NULL, 'b'},
{"cparam", required_argument, NULL, 'c'},
{"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->a = 0;
my_args->b = 2;
my_args->h = false;
my_args->v = false;
optind = 0;
while ((c = getopt_long (argc, argv, "a:b:c:hv", long_options, &optind)) != - 1)
{
switch (c)
{
case 'a':
if (! xstrtod (optarg, NULL, &my_args->a, strtod))
error (EXIT_FAILURE, 0, "could not convert %s to double", optarg);
break;
case 'b':
if (! xstrtod (optarg, NULL, &my_args->b, strtod))
error (EXIT_FAILURE, 0, "could not convert %s to double", optarg);
if (my_args->b < 2)
{
fprintf (stderr, "parameter range error: b must be >= 2\n");
errflg++;
}
if (my_args->b > 5)
{
fprintf (stderr, "parameter range error: b must be <= 5\n");
errflg++;
}
break;
case 'c':
if (! xstrtod (optarg, NULL, &my_args->c, strtod))
error (EXIT_FAILURE, 0, "could not convert %s to double", optarg);
if (my_args->c < 2)
{
fprintf (stderr, "parameter range error: c must be >= 2\n");
errflg++;
}
if (my_args->c > 5)
{
fprintf (stderr, "parameter range error: c must be <= 5\n");
errflg++;
}
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 [ -abchv ] \n\
[ -a ] [ --aparam ] (type=DOUBLE, default=0)\n\
This is a double parameter\n\
[ -b ] [ --bparam ] (type=DOUBLE, range=2...5, default=2)\n\
This parameter must be in the range 2...5\n\
[ -c ] [ --cparam ] (type=DOUBLE, range=2...5,)\n\
This parameter has no default value\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);
}
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