text: /* Copyright (C) 2016-2018 Alibaba Group Holding Limited
  
  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.
  ==============================================================================*/
  
  
  #pragma once
  
  #include "xdl/data_io/op/feature_op/feature_op_type.h"
  
  namespace xdl {
  namespace io {
  
  class DslParser {
   public:
    static DslParser* Get() {
      static DslParser dsl_parser;
      return &dsl_parser;
    }
  
    void Parse(const std::string &conf_line);
  
    const DslUnitMap &dsl_unit_map() const { return dsl_unit_map_; }
  
   private:
    static const std::string item_separator_;
    static const std::string kv_separator_;
    DslUnitMap dsl_unit_map_;
  };
  
  }  // namespace io
  }  // namespace xdl