mirror of git://git.suckless.org/slock
66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
/*
|
|
* Copy me if you can.
|
|
* by 20h
|
|
*/
|
|
|
|
#ifndef ARG_H__
|
|
#define ARG_H__
|
|
|
|
extern char *argv0;
|
|
|
|
/* use main(int argc, char *argv[]) */
|
|
#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
|
|
argv[0] && argv[0][0] == '-'\
|
|
&& argv[0][1];\
|
|
argc--, argv++) {\
|
|
char argc_;\
|
|
char **argv_;\
|
|
int brk_;\
|
|
if (argv[0][1] == '-' && argv[0][2] == '\0') {\
|
|
argv++;\
|
|
argc--;\
|
|
break;\
|
|
}\
|
|
for (brk_ = 0, argv[0]++, argv_ = argv;\
|
|
argv[0][0] && !brk_;\
|
|
argv[0]++) {\
|
|
if (argv_ != argv)\
|
|
break;\
|
|
argc_ = argv[0][0];\
|
|
switch (argc_)
|
|
|
|
/* Handles obsolete -NUM syntax */
|
|
#define ARGNUM case '0':\
|
|
case '1':\
|
|
case '2':\
|
|
case '3':\
|
|
case '4':\
|
|
case '5':\
|
|
case '6':\
|
|
case '7':\
|
|
case '8':\
|
|
case '9'
|
|
|
|
#define ARGEND }\
|
|
}
|
|
|
|
#define ARGC() argc_
|
|
|
|
#define ARGNUMF() (brk_ = 1, estrtonum(argv[0], 0, INT_MAX))
|
|
|
|
#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
|
|
((x), abort(), (char *)0) :\
|
|
(brk_ = 1, (argv[0][1] != '\0')?\
|
|
(&argv[0][1]) :\
|
|
(argc--, argv++, argv[0])))
|
|
|
|
#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
|
|
(char *)0 :\
|
|
(brk_ = 1, (argv[0][1] != '\0')?\
|
|
(&argv[0][1]) :\
|
|
(argc--, argv++, argv[0])))
|
|
|
|
#define LNGARG() &argv[0][0]
|
|
|
|
#endif
|