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	arg.h - libsl - shared code master of various suckless projects
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	arg.h (1011B)
	---
	1 /*
	2 * Copy me if you can.
	3 * by 20h
	4 */
	5
	6 #ifndef ARG_H__
	7 #define ARG_H__
	8
	9 extern char *argv0;
	10
	11 /* use main(int argc, char argv[]) /
	12 #define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
	13 argv[0] && argv[0][0] == '-'\
	14 && argv[0][1];\
	15 argc--, argv++) {\
	16 char argc_;\
	17 char **argv_;\
	18 int brk_;\
	19 if (argv[0][1] == '-' && argv[0][2] == '…
	20 argv++;\
	21 argc--;\
	22 break;\
	23 }\
	24 for (brk_ = 0, argv[0]++, argv_ = argv;\
	25 argv[0][0] && !brk_;\
	26 argv[0]++) {\
	27 if (argv_ != argv)\
	28 break;\
	29 argc_ = argv[0][0];\
	30 switch (argc_)
	31
	32 #define ARGEND }\
	33 }
	34
	35 #define ARGC() argc_
	36
	37 #define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
	38 ((x), abort(), (char *)0) :\
	39 (brk_ = 1, (argv[0][1] != '\0')?\
	40 (&argv[0][1]) :\
	41 (argc--, argv++, argv[0])))
	42
	43 #define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
	44 (char *)0 :\
	45 (brk_ = 1, (argv[0][1] != '\0')?\
	46 (&argv[0][1]) :\
	47 (argc--, argv++, argv[0])))
	48
	49 #endif