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new arg.h version by frign

This commit is contained in:
Aaron Marcher 2017-08-10 11:31:57 +02:00
parent 4b4b2ac079
commit 999cf00490
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GPG Key ID: 74B048E5C2474F9A
2 changed files with 30 additions and 50 deletions
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3
LICENSE
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@ -1,6 +1,7 @@
ISC License
Copyright (C) 2016-2017 Aaron Marcher
Copyright (C) 2016-2017 Aaron Marcher <me@drkhsh.at>
Copyright (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

69
arg.h
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@ -1,55 +1,34 @@
/*
* Copy me if you can.
* by 20h
*/
/* See LICENSE file for copyright and license details. */
#ifndef __ARG_H__
#define __ARG_H__
#ifndef ARG_H
#define ARG_H
extern char *argv0;
#define USED(x) ((void)(x))
/* use main(int argc, char *argv[]) */
#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
argv[0] && argv[0][1]\
&& argv[0][0] == '-';\
argc--, argv++) {\
char _argc;\
char **_argv;\
int brk;\
if (argv[0][1] == '-' && argv[0][2] == '\0') {\
argv++;\
argc--;\
/* int main(int argc, char *argv[]) */
#define ARGBEGIN for (argv0 = *argv, *argv ? (argc--, argv++) : ((void *)0); \
*argv && (*argv)[0] == '-' && (*argv)[1]; argc--, argv++) { \
int i_, argused_; \
if ((*argv)[1] == '-' && !(*argv)[2]) { \
argc--, argv++; \
break; \
} \
for (brk = 0, argv[0]++, _argv = argv;\
argv[0][0] && !brk;\
argv[0]++) {\
if (_argv != argv)\
for (i_ = 1, argused_ = 0; (*argv)[i_]; i_++) { \
switch((*argv)[i_])
#define ARGEND if (argused_) { \
if ((*argv)[i_ + 1]) { \
break; \
} else { \
argc--, argv++; \
break; \
_argc = argv[0][0];\
switch (_argc)
#define ARGEND }\
USED(_argc);\
} \
USED(argv);\
USED(argc);
#define ARGC() _argc
#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
((x), abort(), (char *)0) :\
(brk = 1, (argv[0][1] != '\0')?\
(&argv[0][1]) :\
(argc--, argv++, argv[0])))
#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
(char *)0 :\
(brk = 1, (argv[0][1] != '\0')?\
(&argv[0][1]) :\
(argc--, argv++, argv[0])))
} \
} \
}
#define ARGC() ((*argv)[i_])
#define ARGF_(x) (((*argv)[i_ + 1]) ? (argused_ = 1, &((*argv)[i_ + 1])) : \
(*(argv + 1)) ? (argused_ = 1, *(argv + 1)) : (x))
#define EARGF(x) ARGF_(((x), exit(1), (char *)0))
#define ARGF() ARGF_((char *)0)
#endif