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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 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 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 with or without fee is hereby granted, provided that the above copyright notice

77
arg.h
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@ -1,55 +1,34 @@
/* /* See LICENSE file for copyright and license details. */
* Copy me if you can.
* by 20h
*/
#ifndef __ARG_H__ #ifndef ARG_H
#define __ARG_H__ #define ARG_H
extern char *argv0; extern char *argv0;
#define USED(x) ((void)(x)) /* int main(int argc, char *argv[]) */
#define ARGBEGIN for (argv0 = *argv, *argv ? (argc--, argv++) : ((void *)0); \
/* use main(int argc, char *argv[]) */ *argv && (*argv)[0] == '-' && (*argv)[1]; argc--, argv++) { \
#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\ int i_, argused_; \
argv[0] && argv[0][1]\ if ((*argv)[1] == '-' && !(*argv)[2]) { \
&& argv[0][0] == '-';\ argc--, argv++; \
argc--, argv++) {\ break; \
char _argc;\ } \
char **_argv;\ for (i_ = 1, argused_ = 0; (*argv)[i_]; i_++) { \
int brk;\ switch((*argv)[i_])
if (argv[0][1] == '-' && argv[0][2] == '\0') {\ #define ARGEND if (argused_) { \
argv++;\ if ((*argv)[i_ + 1]) { \
argc--;\ break; \
break;\ } else { \
}\ argc--, argv++; \
for (brk = 0, argv[0]++, _argv = argv;\ break; \
argv[0][0] && !brk;\ } \
argv[0]++) {\ } \
if (_argv != argv)\ } \
break;\ }
_argc = argv[0][0];\ #define ARGC() ((*argv)[i_])
switch (_argc) #define ARGF_(x) (((*argv)[i_ + 1]) ? (argused_ = 1, &((*argv)[i_ + 1])) : \
(*(argv + 1)) ? (argused_ = 1, *(argv + 1)) : (x))
#define ARGEND }\ #define EARGF(x) ARGF_(((x), exit(1), (char *)0))
USED(_argc);\ #define ARGF() ARGF_((char *)0)
}\
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])))
#endif #endif