// -*- C++ -*-
#ifndef _Trans_h_
#define _Trans_h_

#ifdef __GNUG__
#pragma interface
#endif

#include "tex-accent.h"
#include "LString.h"
#include "trans_decl.h"

class LyXLex;

class TransManager;

/**
  TransInterface: the interface that every translation class
  should obey too.
  Visitor pattern applied here
  */
class TransInterface {
public:
	///
	virtual string process(char,TransManager&)=0;
	///
	virtual bool isAccentDefined(tex_accent,KmodInfo&)=0;
};

/**
  DefaultTrans: the default translation class. Hols info
  on tex-accents. Monostate
  */
class DefaultTrans: public TransInterface {
private:
	///
	static bool init_;
public:
	///
	DefaultTrans();
	///
	virtual string process(char,TransManager&);
};


/**
  Trans: holds a .kmap file 
  */
class Trans:public TransInterface {
public:
	///
	Trans();
	///
	virtual ~Trans();

	///
	int Load(string const &language);
	///
	bool IsDefined();
	///
	const string& GetName();
	///
	string process(char,TransManager&);
	///
	bool isAccentDefined(tex_accent,KmodInfo&);
    
private:
	///
	typedef KmodInfo kmod_list_decl;
	///
	typedef KmodException keyexc;
    
	///
	void AddDeadkey(tex_accent, const string&, const string&);
	///
	void FreeKeymap();
	///
	int Load(LyXLex &);
	///
	inline char* Match(char c);
	///
	void InsertException(keyexc &exclist, char c,
			     const string& data, bool = false,
			     tex_accent = TEX_NOACCENT);
	///
	void FreeException(keyexc& exclist);

	///
	string name_;
	///
	char *keymap_[256];
	///
	kmod_list_decl *kmod_list_[TEX_MAX_ACCENT+1];

};


char* Trans::Match(char c)
{
	return keymap_[c];
}

#endif