michael@0: //
michael@0: // Copyright (c) 2011 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: #ifndef COMPILER_PREPROCESSOR_INPUT_H_
michael@0: #define COMPILER_PREPROCESSOR_INPUT_H_
michael@0: 
michael@0: #include <stddef.h>
michael@0: #include <vector>
michael@0: 
michael@0: namespace pp
michael@0: {
michael@0: 
michael@0: // Holds and reads input for Lexer.
michael@0: class Input
michael@0: {
michael@0:   public:
michael@0:     Input();
michael@0:     Input(size_t count, const char* const string[], const int length[]);
michael@0: 
michael@0:     size_t count() const { return mCount; }
michael@0:     const char* string(size_t index) const { return mString[index]; }
michael@0:     size_t length(size_t index) const { return mLength[index]; }
michael@0: 
michael@0:     size_t read(char* buf, size_t maxSize);
michael@0: 
michael@0:     struct Location
michael@0:     {
michael@0:         size_t sIndex;  // String index;
michael@0:         size_t cIndex;  // Char index.
michael@0: 
michael@0:         Location() : sIndex(0), cIndex(0) { }
michael@0:     };
michael@0:     const Location& readLoc() const { return mReadLoc; }
michael@0: 
michael@0:   private:
michael@0:     // Input.
michael@0:     size_t mCount;
michael@0:     const char* const* mString;
michael@0:     std::vector<size_t> mLength;
michael@0: 
michael@0:     Location mReadLoc;
michael@0: };
michael@0: 
michael@0: }  // namespace pp
michael@0: #endif  // COMPILER_PREPROCESSOR_INPUT_H_
michael@0: