1 // Created on: 1992-08-18
2 // Created by: Arnaud BOUZY
3 // Copyright (c) 1992-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _ExprIntrp_GenRel_HeaderFile
18 #define _ExprIntrp_GenRel_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_Type.hxx>
23 #include <Standard_Boolean.hxx>
24 #include <ExprIntrp_Generator.hxx>
25 class Expr_GeneralRelation;
26 class Standard_NoSuchObject;
27 class TCollection_AsciiString;
30 class ExprIntrp_GenRel;
31 DEFINE_STANDARD_HANDLE(ExprIntrp_GenRel, ExprIntrp_Generator)
33 //! Implements an interpreter for equations or system
34 //! of equations made of expressions of package Expr.
35 class ExprIntrp_GenRel : public ExprIntrp_Generator
41 Standard_EXPORT static Handle(ExprIntrp_GenRel) Create();
43 //! Processes given string.
44 Standard_EXPORT void Process (const TCollection_AsciiString& str);
46 //! Returns false if any syntax error has occurred during
48 Standard_EXPORT Standard_Boolean IsDone() const;
50 //! Returns relation generated. Raises an exception if
51 //! IsDone answers false.
52 Standard_EXPORT Handle(Expr_GeneralRelation) Relation() const;
57 DEFINE_STANDARD_RTTIEXT(ExprIntrp_GenRel,ExprIntrp_Generator)
67 //! Creates an empty generator
68 Standard_EXPORT ExprIntrp_GenRel();
70 Standard_Boolean done;
71 Handle(Expr_GeneralRelation) myRelation;
82 #endif // _ExprIntrp_GenRel_HeaderFile