/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018, 2019
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#import "OFBitSetCharacterSet.h"
#import "OFString.h"
#import "OFOutOfRangeException.h"
@implementation OFBitSetCharacterSet
- (instancetype)init
{
OF_INVALID_INIT_METHOD
}
- (instancetype)initWithCharactersInString: (OFString *)string
{
self = [super init];
@try {
void *pool = objc_autoreleasePoolPush();
const of_unichar_t *characters = string.characters;
size_t length = string.length;
for (size_t i = 0; i < length; i++) {
of_unichar_t c = characters[i];
if (c / 8 >= _size) {
size_t newSize;
if (UINT32_MAX - c < 1)
@throw [OFOutOfRangeException
exception];
newSize = OF_ROUND_UP_POW2(8, c + 1) / 8;
_bitset = [self resizeMemory: _bitset
size: newSize];
memset(_bitset + _size, '\0', newSize - _size);
_size = newSize;
}
of_bitset_set(_bitset, c);
}
objc_autoreleasePoolPop(pool);
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (bool)characterIsMember: (of_unichar_t)character
{
if (character / 8 >= _size)
return false;
return of_bitset_isset(_bitset, character);
}
@end