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typedef unsigned short Rune; /* 16 bits */
typedef unsigned char uchar;
#define Runeerror 0x80 /* decoding error in UTF */
#define Runeself 0x80 /* rune and UTF sequences are the same (<) */
#define UTFmax 6 /* maximum bytes per rune */
/*
plan 9 argument parsing
*/
#define ARGBEGIN for((argv0? 0: (argv0= *argv)),argv++,argc--;\
argv[0] && argv[0][0]=='-' && argv[0][1];\
argc--, argv++) {\
char *_args, *_argt, _argc;\
_args = &argv[0][1];\
if(_args[0]=='-' && _args[1]==0){\
argc--; argv++; break;\
}\
_argc=0;while(*_args) switch(_argc= *_args++)
#define ARGEND }
#define ARGF() (_argt=_args, _args="",\
(*_argt? _argt: argv[1]? (argc--, *++argv): 0))
#define ARGC() _argc
extern char *argv0;
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