include/opencascade/ExprIntrp_GenRel.hxx

0001 // Created on: 1992-08-18
0002 // Created by: Arnaud BOUZY
0003 // Copyright (c) 1992-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _ExprIntrp_GenRel_HeaderFile
0018 #define _ExprIntrp_GenRel_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_Type.hxx>
0022
0023 #include <ExprIntrp_Generator.hxx>
0024 class Expr_GeneralRelation;
0025 class TCollection_AsciiString;
0026
0027
0028 class ExprIntrp_GenRel;
0029 DEFINE_STANDARD_HANDLE(ExprIntrp_GenRel, ExprIntrp_Generator)
0030
0031 //! Implements an interpreter for equations or system
0032 //! of equations made of expressions of package Expr.
0033 class ExprIntrp_GenRel : public ExprIntrp_Generator
0034 {
0035
0036 public:
0037
0038
0039   Standard_EXPORT static Handle(ExprIntrp_GenRel) Create();
0040
0041   //! Processes given string.
0042   Standard_EXPORT void Process (const TCollection_AsciiString& str);
0043
0044   //! Returns false if any syntax error has occurred during
0045   //! process.
0046   Standard_EXPORT Standard_Boolean IsDone() const;
0047
0048   //! Returns relation generated. Raises an exception if
0049   //! IsDone answers false.
0050   Standard_EXPORT Handle(Expr_GeneralRelation) Relation() const;
0051
0052
0053
0054
0055   DEFINE_STANDARD_RTTIEXT(ExprIntrp_GenRel,ExprIntrp_Generator)
0056
0057 protected:
0058
0059
0060
0061
0062 private:
0063
0064
0065   //! Creates an empty generator
0066   Standard_EXPORT ExprIntrp_GenRel();
0067
0068   Standard_Boolean done;
0069   Handle(Expr_GeneralRelation) myRelation;
0070
0071
0072 };
0073
0074
0075
0076
0077
0078
0079
0080 #endif // _ExprIntrp_GenRel_HeaderFile