// Copyright (c) 1994 James Clark, 1999 Matthias Clasen

// See the file COPYING for copying permission.

#ifndef MessageArg_INCLUDED

#define MessageArg_INCLUDED 1

#ifdef __GNUG__

#pragma interface

#endif

#include "StringC.h"

#include "Vector.h"

#include "rtti.h"

#ifdef SP_NAMESPACE

namespace SP_NAMESPACE {

#endif

class MessageBuilder;

class SP_API MessageArg {

public:

  MessageArg();

  virtual ~MessageArg();

  virtual MessageArg *copy() const = 0;

  virtual void append(MessageBuilder &) const = 0;

};

class SP_API StringMessageArg : public MessageArg {

public:

  StringMessageArg(const StringC &);

  MessageArg *copy() const;

  void append(MessageBuilder &) const;

private:

  StringC s_;

};

class SP_API NumberMessageArg : public MessageArg {

public:

  NumberMessageArg(unsigned long);

  MessageArg *copy() const;

  void append(MessageBuilder &) const;

private:

  unsigned long n_;

};

class SP_API OrdinalMessageArg : public MessageArg {

public:

  OrdinalMessageArg(unsigned long);

  MessageArg *copy() const;

  void append(MessageBuilder &) const;

private:

  unsigned long n_;

};

class SP_API OtherMessageArg : public MessageArg {

  RTTI_CLASS

public:

  OtherMessageArg();

  void append(MessageBuilder &) const;

};

class SP_API StringVectorMessageArg : public MessageArg {

public:

  StringVectorMessageArg(const Vector<StringC> &);

  MessageArg *copy() const;

  void append(MessageBuilder &) const;

private:

  Vector<StringC> v_;

};

#ifdef SP_NAMESPACE

}

#endif

#endif /* not MessageArg_INCLUDED */