50 lines
2.4 KiB
C
50 lines
2.4 KiB
C
/*
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* ISC-License
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*
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* Copyright 2004-2017 Christoph Lohmann <20h@r-36.net>
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* Copyright 2017-2018 Laslo Hunhold <dev@frign.de>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef ARG_H
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#define ARG_H
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extern char *argv0;
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/* int main(int argc, char *argv[]) */
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#define ARGBEGIN for (argv0 = *argv, *argv ? (argc--, argv++) : ((void *)0); \
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*argv && (*argv)[0] == '-' && (*argv)[1]; argc--, argv++) { \
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int i_, argused_; \
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if ((*argv)[1] == '-' && !(*argv)[2]) { \
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argc--, argv++; \
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break; \
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} \
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for (i_ = 1, argused_ = 0; (*argv)[i_]; i_++) { \
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switch((*argv)[i_])
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#define ARGEND if (argused_) { \
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if ((*argv)[i_ + 1]) { \
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break; \
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} else { \
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argc--, argv++; \
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break; \
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} \
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} \
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} \
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}
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#define ARGC() ((*argv)[i_])
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#define ARGF_(x) (((*argv)[i_ + 1]) ? (argused_ = 1, &((*argv)[i_ + 1])) : \
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(*(argv + 1)) ? (argused_ = 1, *(argv + 1)) : (x))
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#define EARGF(x) ARGF_(((x), exit(1), (char *)0))
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#define ARGF() ARGF_((char *)0)
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#endif
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