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/*
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 * The authors of this software are Rob Pike and Ken Thompson.
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 *              Copyright (c) 2002 by Lucent Technologies.
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose without fee is hereby granted, provided that this entire notice
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 * is included in all copies of any software which is or includes a copy
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 * or modification of this software and in all copies of the supporting
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 * documentation for such software.
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 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
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 * WARRANTY.  IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY
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 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
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 * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
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 */
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#include <stdarg.h>
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#include <string.h>
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#include <stdlib.h>
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#include "utf.h"
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#include "fmt.h"
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#include "fmtdef.h"
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static int
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runeFmtStrFlush(Fmt *f)
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{
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	Rune *s;
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	int n;
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	n = (int)f->farg;
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	n += 256;
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	f->farg = (void*)n;
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	s = (Rune*)f->start;
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	f->start = realloc(s, sizeof(Rune)*n);
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	if(f->start == nil){
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		f->start = s;
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		return 0;
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	}
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	f->to = (Rune*)f->start + ((Rune*)f->to - s);
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	f->stop = (Rune*)f->start + n - 1;
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	return 1;
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}
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int
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runefmtstrinit(Fmt *f)
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{
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	int n;
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	f->runes = 1;
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	n = 32;
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	f->start = malloc(sizeof(Rune)*n);
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	if(f->start == nil)
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		return -1;
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	f->to = f->start;
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	f->stop = (Rune*)f->start + n - 1;
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	f->flush = runeFmtStrFlush;
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	f->farg = (void*)n;
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	f->nfmt = 0;
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	return 0;
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}
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Rune*
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runefmtstrflush(Fmt *f)
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{
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	*(Rune*)f->to = '\0';
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	f->to = f->start;
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	return f->start;
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}