master_lexer_state.h

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// Copyright (C) 2012-2015 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#ifndef MASTER_LEXER_STATE_H
#define MASTER_LEXER_STATE_H 1

#include <dns/master_lexer.h>

#include <boost/function.hpp>

namespace isc {
namespace dns {

namespace master_lexer_internal {

class State {
public:
    virtual ~State() {}

    static const State* start(MasterLexer& lexer,
                              MasterLexer::Options options);

    virtual void handle(MasterLexer& lexer) const = 0;

    enum ID {
        CRLF,                  
        String,                
        QString,               
        Number                 
    };

    static const State& getInstance(ID state_id);

    bool wasLastEOL(const MasterLexer& lexer) const;
    const MasterToken& getToken(const MasterLexer& lexer) const;
    size_t getParenCount(const MasterLexer& lexer) const;

protected:
    MasterLexer::MasterLexerImpl* getLexerImpl(MasterLexer& lexer) const {
        return (lexer.impl_);
    }
};

} // namespace master_lexer_internal
} // namespace dns
} // namespace isc
#endif  // MASTER_LEXER_STATE_H

// Local Variables:
// mode: c++
// End: