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- /* See LICENSE file for copyright and license details. */
- #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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