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/*
** CWRegEx.m
**
** Copyright (c) 2001-2004 Ludovic Marcotte, Francis Lachapelle
**
** Author: Francis Lachapelle <francis@Sophos.ca>
** Ludovic Marcotte <ludovic@Sophos.ca>
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License as published by the Free Software Foundation; either
** version 2.1 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Lesser General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <Pantomime/CWRegEx.h>
#include <Pantomime/CWConstants.h>
#import <Foundation/NSArray.h>
#import <Foundation/NSValue.h>
#include <stdlib.h>
//
//
//
@implementation CWRegEx
- (id) init
{
return [self initWithPattern: @""];
}
//
//
//
- (id) initWithPattern: (NSString *) thePattern
{
return [self initWithPattern: thePattern flags: REG_EXTENDED];
}
//
//
//
- (id) initWithPattern: (NSString *) thePattern
flags: (int) theFlags
{
int status;
char *error;
if ((self = [super init]))
{
status = regcomp(&_re, [thePattern cString], theFlags);
if (status != 0)
{
error = malloc(255*sizeof(char));
regerror(status, &_re, error, 255);
free(error);
AUTORELEASE(self);
self = nil;
}
}
return self;
}
//
//
//
+ (id) regexWithPattern: (NSString *) thePattern
{
return AUTORELEASE([[self alloc] initWithPattern: thePattern]);
}
//
//
//
+ (id) regexWithPattern: (NSString *) thePattern
flags: (int) theFlags
{
return AUTORELEASE([[self alloc] initWithPattern: thePattern flags: theFlags]);
}
//
//
//
- (void)dealloc
{
regfree(&_re);
[super dealloc];
}
//
//
//
- (NSArray *) matchString: (NSString *) theString
{
NSMutableArray *aMutableArray;
int offset, status;
char *s, *error;
regmatch_t rm[1];
s = (char*)[theString lossyCString];
aMutableArray = [[NSMutableArray alloc] init];
status = regexec(&_re, s, 1, rm, 0);
offset = 0;
while (status == 0)
{
NSValue *aValue;
aValue = [NSValue valueWithRange: NSMakeRange(offset + rm[0].rm_so, rm[0].rm_eo - rm[0].rm_so)];
[aMutableArray addObject: aValue];
offset += rm[0].rm_eo;
if (rm[0].rm_eo - rm[0].rm_so == 0)
{
status = 1;
}
else
{
status = regexec(&_re, s + offset, 1, rm, REG_NOTBOL);
}
}
if (status != REG_NOMATCH)
{
error = malloc(255*sizeof(char));
regerror(status, &_re, error, 255);
free(error);
}
return AUTORELEASE(aMutableArray);
}
//
//
//
+ (NSArray *) matchString: (NSString *) theString
withPattern: (NSString *) thePattern
isCaseSensitive: (BOOL) theBOOL
{
int flags;
CWRegEx *regex;
NSArray *result;
flags = REG_EXTENDED;
if (!theBOOL)
{
flags |= REG_ICASE;
}
if ((regex = [CWRegEx regexWithPattern: thePattern flags: flags]) == nil)
{
result = [NSArray array];
}
else
{
result = [regex matchString: theString];
}
return result;
}
@end
|
