ratox

FIFO based tox client
git clone git@git.2f30.org/ratox.git
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arg.h (2443B)


      1 /*
      2  * ISC-License
      3  *
      4  * Copyright 2017 Laslo Hunhold <dev@frign.de>
      5  *
      6  * Permission to use, copy, modify, and/or distribute this software for any
      7  * purpose with or without fee is hereby granted, provided that the above
      8  * copyright notice and this permission notice appear in all copies.
      9  *
     10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     17  */
     18 #ifndef ARG_H
     19 #define ARG_H
     20 
     21 extern char *argv0;
     22 
     23 /* int main(int argc, char *argv[]) */
     24 #define ARGBEGIN for (argv0 = *argv, *argv ? (argc--, argv++) : ((void *)0);      \
     25                       *argv && (*argv)[0] == '-' && (*argv)[1]; argc--, argv++) { \
     26                  	int i_, argused_;                                         \
     27                  	if ((*argv)[1] == '-' && !(*argv)[2]) {                   \
     28                  		argc--, argv++;                                   \
     29                  		break;                                            \
     30                  	}                                                         \
     31                  	for (i_ = 1, argused_ = 0; (*argv)[i_]; i_++) {           \
     32                  		switch((*argv)[i_])
     33 #define ARGEND   		if (argused_) {                                   \
     34                  			if ((*argv)[i_ + 1]) {                    \
     35                  				break;                            \
     36                  			} else {                                  \
     37                  				argc--, argv++;                   \
     38                  				break;                            \
     39                  			}                                         \
     40                  		}                                                 \
     41                  	}                                                         \
     42                  }
     43 #define ARGC()   ((*argv)[i_])
     44 #define ARGF_(x) (((*argv)[i_ + 1]) ? (argused_ = 1, &((*argv)[i_ + 1])) :        \
     45                   (*(argv + 1))     ? (argused_ = 1, *(argv + 1))        : (x))
     46 #define EARGF(x) ARGF_(((x), exit(1), (char *)0))
     47 #define ARGF()   ARGF_((char *)0)
     48 
     49 #endif