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- /*
- * ISC-License
- *
- * Copyright 2004-2017 Christoph Lohmann <20h@r-36.net>
- * Copyright 2017-2018 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, *argv ? (argc--, argv++) : ((void *)0); \
- *argv && (*argv)[0] == '-' && (*argv)[1]; argc--, argv++) { \
- int i_, argused_; \
- if ((*argv)[1] == '-' && !(*argv)[2]) { \
- argc--, argv++; \
- break; \
- } \
- for (i_ = 1, argused_ = 0; (*argv)[i_]; i_++) { \
- switch((*argv)[i_])
- #define ARGEND if (argused_) { \
- if ((*argv)[i_ + 1]) { \
- break; \
- } else { \
- argc--, argv++; \
- break; \
- } \
- } \
- } \
- }
- #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
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