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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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/*
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* Return pointer to first occurrence of s2 in s1,
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* 0 if none
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*/
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char*
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utfutf(char *s1, char *s2)
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{
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char *p;
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long f, n1, n2;
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Rune r;
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n1 = chartorune(&r, s2);
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f = r;
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if(f <= Runesync) /* represents self */
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return strstr(s1, s2);
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n2 = strlen(s2);
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for(p=s1; p=utfrune(p, f); p+=n1)
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if(strncmp(p, s2, n2) == 0)
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return p;
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return 0;
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}
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