Symbol.h

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//
// Copyright (c) 2006-2014 Raphael David / CANTOR
//

#ifndef CMR_SYMBOL_INCLUDED
#define CMR_SYMBOL_INCLUDED

#include "Commore.h"
#include "AString.h"


namespace commore
{
    struct SymbolItem;
    class CMREXD Symbol
    {
        friend class Tuple;
    public:
        Symbol();
        Symbol(const AChar* name);
        Symbol(const AString& name);
        Symbol(const Symbol& name);
        Symbol(size_t num);
        Symbol& operator = (const Symbol&);
        operator const AString& () const { return get_name(); }
        operator const AChar* () const { return get_name(); }
        operator size_t () const { return get_num(); }
        ~Symbol();

    public:
        const AString& get_name() const;
        size_t get_num() const;

        bool operator == (const AChar* name) const { return get_name() == name; }
        bool operator == (const AString& name) const { return get_name() == name; }
        bool operator == (size_t num) const { return get_num() == num; }
        bool operator != (const AChar* name) const { return get_name() != name; }
        bool operator != (const AString& name) const { return get_name() != name; }
        bool operator != (size_t num) const { return get_num() != num; }
        bool operator == (const Symbol& symbol) const { return symb_ == symbol.symb_; }
        bool operator != (const Symbol& symbol) const { return symb_ != symbol.symb_; }
        bool operator < (const Symbol& symbol) const { return get_name() < symbol.get_name(); }
        bool operator > (const Symbol& symbol) const { return get_name() > symbol.get_name(); }
        int compare(const Symbol& s) const { return get_name().compare(s.get_name()); }
        bool is_ident() const;
        long read_xml(IBStream& i);
        long write_xml(OBStream& o) const;

    private:
        SymbolItem* symb_;
    };
};

CMREXD commore::OBStream& operator << (commore::OBStream& o, const commore::Symbol& s);

#endif