u9fs/tokenize.c

43 lines
602 B
C

#include <plan9.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;
}
int
tokenize(char *str, char **args, int max)
{
return getfields(str, args, max, 1, " \t\n\r");
}