/*
* my_getopt.h - interface to my re-implementation of getopt.
* Copyright 1997, 2000, 2001, 2002, 2006, Benjamin Sittler
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/

#ifndef MY_GETOPT_H_INCLUDED
#define MY_GETOPT_H_INCLUDED

#ifdef __cplusplus
extern "C"{
#endif

    /* reset argument parser to start-up values */
    extern int my_getopt_reset(void);

    /* UNIX-style short-argument parser */
    extern int my_getopt(int argc, char * argv[], const char *opts);

    extern int my_optind, my_opterr, my_optopt;
    extern char *my_optarg;

    struct option{
        const char *name;
        int has_arg;
        int *flag;
        int val;
    };

    /* human-readable values for has_arg */
#undef no_argument
#define no_argument 0
#undef required_argument
#define required_argument 1
#undef optional_argument
#define optional_argument 2

    /* GNU-style long-argument parsers */
    extern int my_getopt_long(int argc, char * argv[], const char *shortopts,
        const struct option *longopts, int *longind);

    extern int my_getopt_long_only(int argc, char * argv[], const char *shortopts,
        const struct option *longopts, int *longind);

    extern int _my_getopt_internal(int argc, char * argv[], const char *shortopts,
        const struct option *longopts, int *longind,
        int long_only);

#ifdef __cplusplus
}
#endif

#endif /* MY_GETOPT_H_INCLUDED */
