dotfiles/_linux/_suckless/slock/arg.h

/*
 * 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