92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
|
/*
|
|||
|
|
* regcomp and regexec - front ends to re_ routines
|
|||
|
|
*
|
|||
|
|
* Mostly for implementation of backward-compatibility kludges. Note that
|
|||
|
|
* these routines exist ONLY in char versions.
|
|||
|
|
*
|
|||
|
|
* Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
|
|||
|
|
*
|
|||
|
|
* Development of this software was funded, in part, by Cray Research Inc.,
|
|||
|
|
* UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
|
|||
|
|
* Corporation, none of whom are responsible for the results. The author
|
|||
|
|
* thanks all of them.
|
|||
|
|
*
|
|||
|
|
* Redistribution and use in source and binary forms -- with or without
|
|||
|
|
* modification -- are permitted for any purpose, provided that
|
|||
|
|
* redistributions in source form retain this entire copyright notice and
|
|||
|
|
* indicate the origin and nature of any modifications.
|
|||
|
|
*
|
|||
|
|
* I'd appreciate being given credit for this package in the documentation of
|
|||
|
|
* software which uses it, but that is not a requirement.
|
|||
|
|
*
|
|||
|
|
* THIS SOFTWARE IS PROVIDED ``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
|
|||
|
|
* HENRY SPENCER 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.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
#include "regguts.h"
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
- regcomp - compile regular expression
|
|||
|
|
*/
|
|||
|
|
int
|
|||
|
|
regcomp(
|
|||
|
|
regex_t *re,
|
|||
|
|
const char *str,
|
|||
|
|
int flags)
|
|||
|
|
{
|
|||
|
|
size_t len;
|
|||
|
|
int f = flags;
|
|||
|
|
|
|||
|
|
if (f®_PEND) {
|
|||
|
|
len = re->re_endp - str;
|
|||
|
|
f &= ~REG_PEND;
|
|||
|
|
} else {
|
|||
|
|
len = strlen(str);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return re_comp(re, str, len, f);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
- regexec - execute regular expression
|
|||
|
|
*/
|
|||
|
|
int
|
|||
|
|
regexec(
|
|||
|
|
regex_t *re,
|
|||
|
|
const char *str,
|
|||
|
|
size_t nmatch,
|
|||
|
|
regmatch_t pmatch[],
|
|||
|
|
int flags)
|
|||
|
|
{
|
|||
|
|
const char *start;
|
|||
|
|
size_t len;
|
|||
|
|
int f = flags;
|
|||
|
|
|
|||
|
|
if (f & REG_STARTEND) {
|
|||
|
|
start = str + pmatch[0].rm_so;
|
|||
|
|
len = pmatch[0].rm_eo - pmatch[0].rm_so;
|
|||
|
|
f &= ~REG_STARTEND;
|
|||
|
|
} else {
|
|||
|
|
start = str;
|
|||
|
|
len = strlen(str);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return re_exec(re, start, len, nmatch, pmatch, f);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* Local Variables:
|
|||
|
|
* mode: c
|
|||
|
|
* c-basic-offset: 4
|
|||
|
|
* fill-column: 78
|
|||
|
|
* End:
|
|||
|
|
*/
|