ref: f8d5cc7230ee2cb7521d90599d525e205ad84fa6
dir: /sys/src/cmd/unix/drawterm/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; }