mirror of git://git.suckless.org/ubase
56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
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/*
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* Copy me if you can.
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* by 20h
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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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#define USED(x) ((void)(x))
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/* use main(int argc, char *argv[]) */
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#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
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argv[0] && argv[0][1]\
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&& argv[0][0] == '-';\
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argc--, argv++) {\
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char _argc;\
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char **_argv;\
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int brk;\
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if (argv[0][1] == '-' && argv[0][2] == '\0') {\
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argv++;\
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argc--;\
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break;\
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}\
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for (brk = 0, argv[0]++, _argv = argv;\
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argv[0][0] && !brk;\
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argv[0]++) {\
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if (_argv != argv)\
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break;\
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_argc = argv[0][0];\
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switch (_argc)
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#define ARGEND }\
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USED(_argc);\
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}\
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USED(argv);\
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USED(argc);
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#define ARGC() _argc
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#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
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((x), abort(), (char *)0) :\
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(brk = 1, (argv[0][1] != '\0')?\
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(&argv[0][1]) :\
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(argc--, argv++, argv[0])))
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#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
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(char *)0 :\
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(brk = 1, (argv[0][1] != '\0')?\
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(&argv[0][1]) :\
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(argc--, argv++, argv[0])))
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#endif
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