text: /*
   * Open Chinese Convert
   *
   * Copyright 2010-2013 BYVoid <byvoid@byvoid.com>
   *
   * 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 "MaxMatchSegmentation.hpp"
  #include "UTF8Util.hpp"
  
  using namespace Opencc;
  
  
  MaxMatchSegmentation::MaxMatchSegmentation(DictPtr dict_) :
    dict(dict_) {
  }
  
  DictEntryPtrVectorPtr MaxMatchSegmentation::Segment(const string& text) {
    DictEntryPtrVectorPtr segments(new DictEntryPtrVector);
    const char* pstr = text.c_str();
    while (*pstr != '\0') {
      Optional<DictEntryPtr> matched = dict->MatchPrefix(pstr);
      size_t matchedLength;
      if (matched.IsNull()) {
        matchedLength = UTF8Util::NextCharLength(pstr);
        segments->push_back(DictEntryPtr(new DictEntry(UTF8Util::FromSubstr(pstr, matchedLength))));
      } else {
        matchedLength = matched.Get()->key.length();
        segments->push_back(DictEntryPtr(matched.Get()));
      }
      pstr += matchedLength;
    }
    return segments;
  }
  