text: // Copyright 2016 The SwiftShader 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.
  
  #ifndef COMPILER_PREPROCESSOR_INPUT_H_
  #define COMPILER_PREPROCESSOR_INPUT_H_
  
  #include <vector>
  
  namespace pp
  {
  
  // Holds and reads input for Lexer.
  class Input
  {
  public:
  	Input();
  	Input(int count, const char* const string[], const int length[]);
  
  	int count() const { return mCount; }
  	const char* string(int index) const { return mString[index]; }
  	int length(int index) const { return mLength[index]; }
  
  	int read(char* buf, int maxSize);
  
  	struct Location
  	{
  		int sIndex;  // String index;
  		int cIndex;  // Char index.
  
  		Location() : sIndex(0), cIndex(0) { }
  	};
  	const Location& readLoc() const { return mReadLoc; }
  
  private:
  	// Input.
  	int mCount;
  	const char* const* mString;
  	std::vector<int> mLength;
  
  	Location mReadLoc;
  };
  
  }  // namespace pp
  #endif  // COMPILER_PREPROCESSOR_INPUT_H_
  
  