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/*
**************************************************************************
description
--------------------
copyright : (C) 2000-2001 by Andreas Zehender
email : [email protected]
**************************************************************************
**************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
**************************************************************************/
#ifndef PMSYMBOLTABLE_H
#define PMSYMBOLTABLE_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "pmvalue.h"
class PMObject;
class PMDeclare;
#include <tqdict.h>
#include <tqstring.h>
/**
* Entry in a @ref PMSymbolTable. Can be a @ref PMValue or a @ref PMObject
*/
class PMSymbol
{
public:
enum PMSymbolType { Value, Object };
/**
* Creates a entry for an object
*/
PMSymbol( const TQString& id, PMDeclare* o );
/**
* Creates a entry for a value
*/
PMSymbol( const TQString& id, const PMValue& v );
/**
* Destructor
*/
~PMSymbol( );
/**
* Returns the type of the symbol
*/
PMSymbolType type( ) const { return m_type; }
/**
* Returns the id of the symbol
*/
TQString id( ) const { return m_id; }
/**
* Sets the id
*/
void setId( const TQString& id );
/**
* Returns the stored object
*/
PMDeclare* object( ) const;
/**
* Returns the stored value
*/
PMValue value( ) const;
/**
* The maximum length for povray ids
*/
static const unsigned int MaxIDLength = 40;
/**
* If the parser parses a declare object with this id, the
* new id is renamed. This function returns a pointer to the
* renamed symbol.
*/
PMSymbol* renamedSymbol( ) const { return m_pRenamedSymbol; }
/**
* Sets the renamed declare object to symbol
*/
void setRenamedSymbol( PMSymbol* symbol ) { m_pRenamedSymbol = symbol; }
private:
PMSymbolType m_type;
PMDeclare* m_pObj;
PMSymbol* m_pRenamedSymbol;
PMValue* m_pVal;
TQString m_id;
};
/**
* Symbol table for povray #declare statements
*/
class PMSymbolTable : public TQDict<PMSymbol>
{
public:
/**
* Constructor
*/
PMSymbolTable( );
/**
* Destructor
*/
~PMSymbolTable( );
/**
* Returns a free id with prefix prefix and a number as suffix
*/
TQString findNewID( const TQString& prefix );
/**
* Returns a free id with prefix prefix and a number as suffix and assigns
* it to the object.
*
* Does NOT add the object to the symbol table.
*
* Returns the new symbol.*/
PMSymbol* findNewID( const TQString& prefix, PMDeclare* obj );
private:
TQDict<int> m_lastID;
};
#endif
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