ZXAztecHighLevelEncoder.h
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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.
*/
extern NSArray *ZX_AZTEC_MODE_NAMES;
extern const int ZX_AZTEC_MODE_UPPER;
extern const int ZX_AZTEC_MODE_LOWER;
extern const int ZX_AZTEC_MODE_DIGIT;
extern const int ZX_AZTEC_MODE_MIXED;
extern const int ZX_AZTEC_MODE_PUNCT;
extern const int ZX_AZTEC_LATCH_TABLE[][5];
#define ZX_AZTEC_SHIFT_TABLE_SIZE 6
extern int ZX_AZTEC_SHIFT_TABLE[ZX_AZTEC_SHIFT_TABLE_SIZE][ZX_AZTEC_SHIFT_TABLE_SIZE];
@class ZXBitArray, ZXByteArray;
/**
* This produces nearly optimal encodings of text into the first-level of
* encoding used by Aztec code.
*
* It uses a dynamic algorithm. For each prefix of the string, it determines
* a set of encodings that could lead to this prefix. We repeatedly add a
* character and generate a new set of optimal encodings until we have read
* through the entire input.
*/
@interface ZXAztecHighLevelEncoder : NSObject
- (id)initWithText:(ZXByteArray *)text;
/**
* Convert the text represented by this High Level Encoder into a BitArray.
*/
- (ZXBitArray *)encode;
@end