DecodedBitStreamParser.h Example File

 // -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-

 #ifndef __DECODED_BIT_STREAM_PARSER_H__
 #define __DECODED_BIT_STREAM_PARSER_H__

 /*
  *  DecodedBitStreamParser.h
  *  zxing
  *
  *  Copyright 2010 ZXing authors All rights reserved.
  *
  * 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.
  */

 #include <string>
 #include <sstream>
 #include <map>
 #include <zxing/qrcode/decoder/Mode.h>
 #include <zxing/common/BitSource.h>
 #include <zxing/common/Counted.h>
 #include <zxing/common/Array.h>
 #include <zxing/common/DecoderResult.h>
 #include <zxing/common/CharacterSetECI.h>
 #include <zxing/DecodeHints.h>

 namespace zxing {
 namespace qrcode {

 class DecodedBitStreamParser {
 public:
   typedef std::map<DecodeHintType, std::string> Hashtable;

 private:
   static char const ALPHANUMERIC_CHARS[];
   static char toAlphaNumericChar(size_t value);

   static void decodeHanziSegment(Ref<BitSource> bits, std::string &result, int count);
   static void decodeKanjiSegment(Ref<BitSource> bits, std::string &result, int count);
   static void decodeByteSegment(Ref<BitSource> bits, std::string &result, int count);
   static std::string decodeByteSegment(Ref<BitSource> bits_,
                                 std::string& result,
                                 int count,
                                 common::CharacterSetECI const *currentCharacterSetECI,
                                 ArrayRef<ArrayRef<byte> > &byteSegments,
                                 Hashtable const& hints);
   static void decodeAlphanumericSegment(Ref<BitSource> bits, std::string &result, int count, bool fc1InEffect);
   static void decodeNumericSegment(Ref<BitSource> bits, std::string &result, int count);

   static void append(std::string &ost, const byte *bufIn, size_t nIn, const char *src);
   static void append(std::string &ost, std::string const& in, const char *src);

 public:
   static Ref<DecoderResult> decode(ArrayRef<byte> bytes,
                                    Version *version,
                                    ErrorCorrectionLevel const& ecLevel,
                                    Hashtable const& hints);
 };

 }
 }

 #endif // __DECODED_BIT_STREAM_PARSER_H__