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Import updated arg.h from farbfeld

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This commit is contained in:
Laslo Hunhold 2017-08-04 17:12:54 +02:00
parent 84d77d096b
commit 08ef9966b5
1 changed files with 17 additions and 23 deletions
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40
arg.h
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@ -1,20 +1,19 @@
/* /*
* ISC-License * ISC-License
* *
* (c) 2017 Laslo Hunhold <dev@frign.de> * Copyright 2017 Laslo Hunhold <dev@frign.de>
* *
* Permission to use, copy, modify, and/or distribute this software for any * Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above * purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies. * copyright notice and this permission notice appear in all copies.
* *
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
* PERFORMANCE OF THIS SOFTWARE.
*/ */
#ifndef ARG_H #ifndef ARG_H
#define ARG_H #define ARG_H
@ -24,15 +23,15 @@ extern char *argv0;
/* int main(int argc, char *argv[]) */ /* int main(int argc, char *argv[]) */
#define ARGBEGIN for (argv0 = *argv, *argv ? (argc--, argv++) : ((void *)0); \ #define ARGBEGIN for (argv0 = *argv, *argv ? (argc--, argv++) : ((void *)0); \
*argv && (*argv)[0] == '-' && (*argv)[1]; argc--, argv++) { \ *argv && (*argv)[0] == '-' && (*argv)[1]; argc--, argv++) { \
int argparsed; \ int _i, _argused; \
if ((*argv)[1] == '-' && (*argv)[2] == '\0') { \ if ((*argv)[1] == '-' && !(*argv)[2]) { \
argc--, argv++; \ argc--, argv++; \
break; \ break; \
} \ } \
for (argparsed = 0, (*argv)++; (*argv)[0]; (*argv)++) { \ for (_i = 1, _argused = 0; (*argv)[_i]; _i++) { \
switch((*argv)[0]) switch((*argv)[_i])
#define ARGEND if (argparsed) { \ #define ARGEND if (_argused) { \
if ((*argv)[1] != '\0') { \ if ((*argv)[_i + 1]) { \
break; \ break; \
} else { \ } else { \
argc--, argv++; \ argc--, argv++; \
@ -41,14 +40,9 @@ extern char *argv0;
} \ } \
} \ } \
} }
#define ARGC() *argv[0] #define ARGC() ((*argv)[_i])
#define ARGF_(x) (((*argv)[1] == '\0' && !*(argv + 1)) ? \ #define ARGF_(x) (((*argv)[_i + 1]) ? (_argused = 1, &((*argv)[_i + 1])) : \
(x) : \ (*(argv + 1)) ? (_argused = 1, *(argv + 1)) : (x))
(argparsed = 1, ((*argv)[1] != '\0') ? \
(&(*argv)[1]) : \
(*(argv + 1)) \
) \
)
#define EARGF(x) ARGF_(((x), exit(1), (char *)0)) #define EARGF(x) ARGF_(((x), exit(1), (char *)0))
#define ARGF() ARGF_((char *)0) #define ARGF() ARGF_((char *)0)