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- /*
- * Copyright 2014 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- #import "ZXAztecSimpleToken.h"
- #import "ZXBitArray.h"
-
- @interface ZXAztecSimpleToken ()
-
- // For normal words, indicates value and bitCount
- @property (nonatomic, assign, readonly) int16_t value;
- @property (nonatomic, assign, readonly) int16_t bitCount;
-
- @end
-
- @implementation ZXAztecSimpleToken
-
- - (id)initWithPrevious:(ZXAztecToken *)previous value:(int)value bitCount:(int)bitCount {
- if (self = [super initWithPrevious:previous]) {
- _value = (int16_t)value;
- _bitCount = (int16_t)bitCount;
- }
-
- return self;
- }
-
- - (void)appendTo:(ZXBitArray *)bitArray text:(ZXByteArray *)text {
- [bitArray appendBits:self.value numBits:self.bitCount];
- }
-
- - (NSString *)description {
- int value = self.value & ((1 << self.bitCount) - 1);
- value |= 1 << self.bitCount;
-
- NSMutableString *str = [NSMutableString string];
- for (int i = value | (1 << self.bitCount); i > 0; i >>= 1) {
- [str insertString:((i & 1) ? @"1" : @"0") atIndex:0];
- }
-
- return [NSString stringWithFormat:@"<%@>", [str substringFromIndex:1]];
- }
-
- @end
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