74 lines
1.5 KiB
C++
74 lines
1.5 KiB
C++
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/***
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*strstri.cpp - search for one string inside another
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*
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* Modified from strstr.c in the CRT source code
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*
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*******************************************************************************/
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#include "stdafx.h"
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//#include <cruntime.h>
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//#include <string.h>
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/***
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*char *strstri(string1, string2) - case-insensitive search for string2 in string1
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*
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*Purpose:
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* finds the first occurrence of string2 in string1
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*
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*Entry:
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* char *string1 - string to search in
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* char *string2 - string to search for
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*
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*Exit:
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* returns a pointer to the first occurrence of string2 in
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* string1, or NULL if string2 does not occur in string1
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*
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*Uses:
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*
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*Exceptions:
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*
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*******************************************************************************/
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char * __cdecl strstri (
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const char * str1,
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const char * str2
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)
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{
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char *cp = (char *) str1;
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char *s1, *s2;
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if ( !*str2 )
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return((char *)str1);
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while (*cp)
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{
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s1 = cp;
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s2 = (char *) str2;
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while ( *s1 && *s2 )
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{
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#ifdef WIN32
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LPTSTR ch1 = CharUpper((LPTSTR)(*s1));
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LPTSTR ch2 = CharUpper((LPTSTR)(*s2));
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#else
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LPSTR ch1 = AnsiUpper((LPSTR)(*s1));
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LPSTR ch2 = AnsiUpper((LPSTR)(*s2));
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#endif
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if (ch1 != ch2)
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break;
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s1++;
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s2++;
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}
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if (*s2 == '\0')
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return(cp);
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cp++;
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}
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return(NULL);
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}
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