int
dorfmt(Fmt *f, const Rune *fmt)
{
Rune *rt, *rs;
int r;
char *t, *s;
int nfmt;
nfmt = f->nfmt;
for(;;) {
if(f->runes) {
rt = f->to;
rs = f->stop;
while((r = *fmt++) && r != '%') {
FMTRCHAR(f, rt, rs, r);
}
f->nfmt += rt - (Rune *)f->to;
f->to = rt;
if(!r)
return f->nfmt - nfmt;
f->stop = rs;
} else {
t = f->to;
s = f->stop;
while((r = *fmt++) && r != '%') {
FMTRUNE(f, t, f->stop, r);
}
f->nfmt += t - (char *)f->to;
f->to = t;
if(!r)
return f->nfmt - nfmt;
f->stop = s;
}
fmt = __fmtdispatch(f, (Rune*)fmt, 1);
if(fmt == nil)
return -1;
}
return 0; /* not reached */
}
/* format the output into f->to and return the number of characters fmted */
int
dofmt(Fmt *f, char *fmt)
{
Rune rune, *rt, *rs;
int r;
char *t, *s;
int n, nfmt;
nfmt = f->nfmt;
for(;;){
if(f->runes){
rt = (Rune*)f->to;
rs = (Rune*)f->stop;
while((r = *(uchar*)fmt) && r != '%'){
if(r < Runeself)
fmt++;
else{
fmt += chartorune(&rune, fmt);
r = rune;
}
FMTRCHAR(f, rt, rs, r);
}
fmt++;
f->nfmt += rt - (Rune *)f->to;
f->to = rt;
if(!r)
return f->nfmt - nfmt;
f->stop = rs;
}else{
t = (char*)f->to;
s = (char*)f->stop;
while((r = *(uchar*)fmt) && r != '%'){
if(r < Runeself){
FMTCHAR(f, t, s, r);
fmt++;
}else{
n = chartorune(&rune, fmt);
if(t + n > s){
t = (char*)__fmtflush(f, t, n);
if(t != nil)
s = (char*)f->stop;
else
return -1;
}
while(n--)
*t++ = *fmt++;
}
}
fmt++;
f->nfmt += t - (char *)f->to;
f->to = t;
if(!r)
return f->nfmt - nfmt;
f->stop = s;
}
fmt = (char*)__fmtdispatch(f, fmt, 0);
if(fmt == nil)
return -1;
}
}
