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/*
* The authors of this software are Rob Pike and Ken Thompson,
* with contributions from Mike Burrows and Sean Dorward.
*
* Copyright (c) 2002-2006 by Lucent Technologies.
* Portions Copyright (c) 2004 Google Inc.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose without fee is hereby granted, provided that this entire notice
* is included in all copies of any software which is or includes a copy
* or modification of this software and in all copies of the supporting
* documentation for such software.
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES
* NOR GOOGLE INC MAKE ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING
* THE MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
*/
#include <u.h>
#include <libc.h>
#include "fmtdef.h"
/* format the output into f->to and return the number of characters fmted */
/* BUG: THIS FILE IS NOT UPDATED TO THE NEW SPEC */
int
dorfmt(Fmt *f, const Rune *fmt)
{
Rune *rt, *rs;
Rune r;
char *t, *s;
int nfmt;
nfmt = f->nfmt;
for(;;){
if(f->runes){
rt = (Rune*)f->to;
rs = (Rune*)f->stop;
while((r = *fmt++) && r != '%'){
FMTRCHAR(f, rt, rs, r);
}
f->nfmt += (int)(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 = *fmt++) && r != '%'){
FMTRUNE(f, t, f->stop, r);
}
f->nfmt += (int)(t - (char *)f->to);
f->to = t;
if(!r)
return f->nfmt - nfmt;
f->stop = s;
}
fmt = (Rune*)__fmtdispatch(f, (Rune*)fmt, 1);
if(fmt == nil)
return -1;
}
return 0; /* not reached */
}
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