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/*
* OpenTyrian: A modern cross-platform port of Tyrian
* Copyright (C) 2007-2009 The OpenTyrian Development Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef ARG_PARSE_H
#define ARG_PARSE_H
#include <stdbool.h>
// this is essentially a reimplementation of getopt_long()
typedef struct
{
int value;
char short_opt;
const char *long_opt;
bool has_arg;
}
Options;
enum
{
// indicates that argv[argn..argc) are not options
NOT_OPTION = 0,
/* behavior of parse_args() is undefined after
it has returned any of the following values */
INVALID_OPTION = -1,
AMBIGUOUS_OPTION = -2,
OPTION_MISSING_ARG = -3
};
typedef struct
{
int value;
const char *arg;
int argn;
}
Option;
Option parse_args( int argc, const char *argv[], const Options *options );
#endif /* ARG_PARSE_H */
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