ref: 35ab5a74c2a8a7e197f35b833694aa28d12bade7
dir: /libc/fmtrune.c/
#include <u.h>
#include <libc.h>
#include "fmtdef.h"
int
fmtrune(Fmt *f, int r)
{
Rune *rt;
char *t;
int n;
if(f->runes){
rt = (Rune*)f->to;
FMTRCHAR(f, rt, f->stop, r);
f->to = rt;
n = 1;
}else{
t = (char*)f->to;
FMTRUNE(f, t, f->stop, r);
n = t - (char*)f->to;
f->to = t;
}
f->nfmt += n;
return 0;
}