trampoline/lib/lib9/getfields.c

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#include <lib9.h>
int
getfields(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;
}