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////////////////////////////////////////////////////////////////////////////////
/*! @file NetMath.h Basic expression interpreter.
- Part of RANet - Research Assistant Net Library.
- Copyright(C) 2014, Viktor E. Bursian, St.Petersburg, Russia.
Viktor.Bursian@mail.ioffe.ru
*///////////////////////////////////////////////////////////////////////////////
#ifndef NetMath_H
#define NetMath_H
#include "PhysMath.h"
#include "BasicNodes.h"
#include "Functions.h"
namespace RA {
//------------------------------------------------------------------------------
ANNOUNCE_CLASS(sNetMath)
//----------------------------------------- get_math_value_from <node_class> ---
/*! Convenience function template for extracting data from the net
for use in math expressions.
*/
template<class node_class>
bool get_math_value_from (rcsNodePtr node_ptr_expression
,psMathValue & result_ptr)
{
sPtr<node_class> ValPtr (node_ptr_expression);
if( ValPtr.IsCorrect() ){
result_ptr = ValPtr->MathValue();
return true;
}
return false;
}
//----------------------------------------------------------------- sNetMath ---
/*! Performs calculation of an expression over phys.values and functions.
*/
class RANet_EXPORT sNetMath : public sPhysMath
{
public://static
static pcsFunction GetMathFunctionFrom (sNodePtr node);
public:
sNetMath (sNodePtr host
,rcsString source)
:sPhysMath(source)
,Host(host)
{}
protected:
virtual psMathValue Term ();
protected: //fields
sNodePtr Host;
private: //types
class sMathOpRegistrator { public: sMathOpRegistrator(); };
private: //static field
static sMathOpRegistrator MathOpRegistrator;
private:
};
//------------------------------------------------------------------------------
} //namespace RA
#endif
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