55 lines
2.6 KiB
C
55 lines
2.6 KiB
C
/*
|
|
* ISC-License
|
|
*
|
|
* (c) 2017 Laslo Hunhold <dev@frign.de>
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
|
|
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
|
|
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
|
|
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
|
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
#ifndef ARG_H
|
|
#define ARG_H
|
|
|
|
extern char *argv0;
|
|
|
|
/* int main(int argc, char *argv[]) */
|
|
#define ARGBEGIN for (argv0 = *argv, argc--, argv++; \
|
|
*argv && (*argv)[0] == '-' && (*argv)[1]; argc--, argv++) { \
|
|
int argparsed; \
|
|
if ((*argv)[1] == '-' && (*argv)[2] == '\0') { \
|
|
argc--, argv++; \
|
|
break; \
|
|
} \
|
|
for (argparsed = 0, (*argv)++; (*argv)[0]; (*argv)++) { \
|
|
switch((*argv)[0])
|
|
#define ARGEND if (argparsed) { \
|
|
if ((*argv)[1] != '\0') { \
|
|
break; \
|
|
} else { \
|
|
argc--, argv++; \
|
|
break; \
|
|
} \
|
|
} \
|
|
} \
|
|
}
|
|
#define ARGC() *argv[0]
|
|
#define ARGF_(x) (((*argv)[1] == '\0' && !*(argv + 1)) ? \
|
|
(x) : \
|
|
(argparsed = 1, ((*argv)[1] != '\0') ? \
|
|
(&(*argv)[1]) : \
|
|
(*(argv + 1)) \
|
|
) \
|
|
)
|
|
#define EARGF(x) ARGF_(((x), exit(1), (char *)0))
|
|
#define ARGF() ARGF_((char *)0)
|
|
|
|
#endif
|