/** \brief Define a binary operator.
        \param a_pCallback Pointer to the callback object
  */
void ParserXBase::DefineOprt(const TokenPtr<IOprtBin> &oprt)
{
    if (IsOprtDefined(oprt->GetIdent()))
        throw ParserError(ErrorContext(ecFUNOPRT_DEFINED, 0, oprt->GetIdent()));

    oprt->SetParent(this);
    m_OprtDef[oprt->GetIdent()] = ptr_tok_type(oprt->Clone());
}
/** \brief Add a user defined operator.
      \param a_pOprt Pointer to a unary postfix operator object. The parser will
             become the new owner of this object hence will destroy it.
  */
void ParserXBase::DefineInfixOprt(const TokenPtr<IOprtInfix> &oprt)
{
    if (IsInfixOprtDefined(oprt->GetIdent()))
        throw ParserError(ErrorContext(ecFUNOPRT_DEFINED, 0, oprt->GetIdent()));

    // Function is not added yet, add it.
    oprt->SetParent(this);
    m_InfixOprtDef[oprt->GetIdent()] = ptr_tok_type(oprt->Clone());
}