71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
|
/*
|
||
|
|
* 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;
|
||
|
|
}
|