Tokenizer.h - mozsearch

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//

// Copyright 2012 The ANGLE Project Authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

//

#ifndef COMPILER_PREPROCESSOR_TOKENIZER_H_

#define COMPILER_PREPROCESSOR_TOKENIZER_H_

#include "common/angleutils.h"

#include "compiler/preprocessor/Input.h"

#include "compiler/preprocessor/Lexer.h"

namespace angle

namespace pp

class Diagnostics;

class Tokenizer : public Lexer

  public:

    struct Context

        Diagnostics *diagnostics;

        Input input;

        // The location where yytext points to. Token location should track

        // scanLoc instead of Input::mReadLoc because they may not be the same

        // if text is buffered up in the scanner input buffer.

        Input::Location scanLoc;

        bool leadingSpace;

        bool lineStart;

};

    Tokenizer(Diagnostics *diagnostics);

    ~Tokenizer() override;

    bool init(size_t count, const char *const string[], const int length[]);

    void setFileNumber(int file);

    void setLineNumber(int line);

    void setMaxTokenSize(size_t maxTokenSize);

    void lex(Token *token) override;

  private:

    bool initScanner();

    void destroyScanner();

    void *mHandle;         // Scanner handle.

    Context mContext;      // Scanner extra.

    size_t mMaxTokenSize;  // Maximum token size

};

}  // namespace pp

}  // namespace angle

#endif  // COMPILER_PREPROCESSOR_TOKENIZER_H_