// Copyright {Jagger Software Limited} 2003

#ifndef GRAMMAR_UNNAMED_SYMBOL_DEFINITION_INCLUDED
#define GRAMMAR_UNNAMED_SYMBOL_DEFINITION_INCLUDED

#include "grammar/symbol_definition.hpp"
#include <stddef.h>

namespace grammar
{
    class unnamed_symbol_definition // {abstract}
        : public
            symbol_definition // {abstract}
    {
    protected: // 'tors

        unnamed_symbol_definition(const key_type & key, const char * name, const char * value);
        unnamed_symbol_definition(const unnamed_symbol_definition &);
       ~unnamed_symbol_definition(); 

    public: // attributes

        const char * const value;  // eg "0123456789" 
        const size_t       size;   // eg  10 == strlen(value)

    public: // iteration

        const char * begin() const;
        const char *   end() const;

    private: // interface only

        void write(::std::ostream &) const;   
        
    };
}

#endif