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/* Test program for argp argument parser
Copyright (C) 1997 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <argp.h>
char *argp_program_version = "argp-test 1.0";
#define OPT_PGRP -1
#define OPT_SESS -2
struct argp_option options[] =
{
{"pid", 'p', "PID", 0,
"List the process PID"},
{"pgrp", OPT_PGRP, "PGRP", 0,
"List processes in the process group PGRP"},
{"no-parent", 'P', 0, 0,
"Include processes without parents"},
{0, 'x', 0, OPTION_ALIAS},
{"all-fields",'Q', 0, 0,
"Don't elide unusable fields (normally if there's some reason ps \
can't print a field for any process, it's removed from the output entirely)"},
{"reverse", 'r', 0, 0,
"Reverse the order of any sort"},
{"gratuitously-long-reverse-option", 0, 0, OPTION_ALIAS},
{"session", OPT_SESS, "SID", OPTION_ARG_OPTIONAL,
"Add the processes from the session SID (which defaults to the sid of \
the current process)"},
{0,0,0,0, "Here are some more options:"},
{"foonly", 'f', "ZOT", 0, "Glork a foonly"},
{"zaza", 'z', 0, 0, "Snit a zar"},
{0}
};
static const char args_doc[] = "STRING...\n-";
static const char doc[] = "Test program for argp.";
static error_t
parse_opt (int key, char *arg, struct argp_state *state)
{
switch (key)
{
case ARGP_KEY_NO_ARGS:
printf ("NO ARGS\n");
break;
case ARGP_KEY_ARG:
if (state->arg_num == 0 && strcmp (arg, "-") == 0
&& state->next < state->argc)
argp_usage (state);
printf ("ARG: %s\n", arg);
break;
case 'p': case 'P': case OPT_PGRP: case 'x': case 'Q':
case 'r': case OPT_SESS:
{
char buf[10];
if (isprint (key))
sprintf (buf, "%c", key);
else
sprintf (buf, "%d", key);
if (arg)
printf ("KEY %s: %s\n", buf, arg);
else
printf ("KEY %s\n", buf);
}
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static struct argp argp = { options, parse_opt, args_doc, doc };
int
main (int argc, char **argv)
{
argp_parse (&argp, argc, argv, 0, 0, 0);
return 0;
}
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