1234567891011121314151617181920212223242526272829303132333435363738394041 |
- /*
- * The authors of this software are Rob Pike and Ken Thompson.
- * Copyright (c) 2002 by Lucent Technologies.
- * 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 MAKE ANY
- * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
- * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
- */
- #include <stdarg.h>
- #include <string.h>
- #include "utf.h"
- #include "utfdef.h"
- /*
- * Return pointer to first occurrence of s2 in s1,
- * 0 if none
- */
- char*
- utfutf(char *s1, char *s2)
- {
- char *p;
- long f, n1, n2;
- Rune r;
- n1 = chartorune(&r, s2);
- f = r;
- if(f <= Runesync) /* represents self */
- return strstr(s1, s2);
- n2 = strlen(s2);
- for(p=s1; p=utfrune(p, f); p+=n1)
- if(strncmp(p, s2, n2) == 0)
- return p;
- return 0;
- }
|