#include <u.h>#include <utf.h> intgetfields(char *str, char **args, int max, int mflag, char *set){	Rune r;	int nr, intok, narg; 	if(max <= 0)		return 0; 	narg = 0;	args[narg] = str;	if(!mflag)		narg++;	intok = 0;	for(;; str += nr) {		nr = chartorune(&r, str);		if(r == 0)			break;		if(utfrune(set, r)) {			if(narg >= max)				break;			*str = 0;			intok = 0;			args[narg] = str + nr;			if(!mflag)				narg++;		} else {			if(!intok && mflag)				narg++;			intok = 1;		}	}	return narg;}