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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 "utf.h"
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#include "utfdef.h"
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int
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utflen(char *s)
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{
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	int c;
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	long n;
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	Rune rune;
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	n = 0;
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	for(;;) {
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		c = *(uchar*)s;
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		if(c < Runeself) {
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			if(c == 0)
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				return n;
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			s++;
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		} else
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			s += chartorune(&rune, s);
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		n++;
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	}
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}