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/*
* Copyright (c) 1996, 1997 Shigio Yamaguchi. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Shigio Yamaguchi.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* locatestring.c 20-Oct-97
*
*/
/*
* locatestring: locate pattern from string
*
* i) string string
* i) pattern pattern
* i) flag 0: match first
* 1: match only at first column
* 2: match last
* 3: match only at last column
* r) pointer or NULL
*
* This function is made to avoid compatibility problems.
*/
char *
locatestring(string, pattern, flag)
char *string;
char *pattern;
int flag;
{
int c = *pattern;
char *p = (char *)0;
if (flag == 3 && strlen(string) > strlen(pattern)) {
string += strlen(string) - strlen(pattern);
}
for (; *string; string++) {
if (*string == c)
if (!strncmp(string, pattern, strlen(pattern))) {
p = string;
if (flag == 0)
break;
}
if (flag == 1 || flag == 3)
break;
}
return p;
}
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