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File indexing completed on 2025-01-18 10:03:27
0001 // Created on: 1991-07-18 0002 // Created by: Arnaud BOUZY 0003 // Copyright (c) 1991-1999 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_GenExp_HeaderFile 0018 #define _ExprIntrp_GenExp_HeaderFile 0019 0020 #include <Standard.hxx> 0021 #include <Standard_Type.hxx> 0022 0023 #include <ExprIntrp_Generator.hxx> 0024 class Expr_GeneralExpression; 0025 class TCollection_AsciiString; 0026 0027 0028 class ExprIntrp_GenExp; 0029 DEFINE_STANDARD_HANDLE(ExprIntrp_GenExp, ExprIntrp_Generator) 0030 0031 //! This class permits, from a string, to create any 0032 //! kind of expression of package Expr by using 0033 //! built-in functions such as Sin,Cos, etc, and by 0034 //! creating variables. 0035 class ExprIntrp_GenExp : public ExprIntrp_Generator 0036 { 0037 0038 public: 0039 0040 0041 Standard_EXPORT static Handle(ExprIntrp_GenExp) Create(); 0042 0043 //! Processes given string. 0044 Standard_EXPORT void Process (const TCollection_AsciiString& str); 0045 0046 //! Returns false if any syntax error has occurred during 0047 //! process. 0048 Standard_EXPORT Standard_Boolean IsDone() const; 0049 0050 //! Returns expression generated. Raises an exception if 0051 //! IsDone answers false. 0052 Standard_EXPORT Handle(Expr_GeneralExpression) Expression() const; 0053 0054 0055 0056 0057 DEFINE_STANDARD_RTTIEXT(ExprIntrp_GenExp,ExprIntrp_Generator) 0058 0059 protected: 0060 0061 0062 0063 0064 private: 0065 0066 0067 //! Creates an empty generator 0068 Standard_EXPORT ExprIntrp_GenExp(); 0069 0070 Standard_Boolean done; 0071 Handle(Expr_GeneralExpression) myExpression; 0072 0073 0074 }; 0075 0076 0077 0078 0079 0080 0081 0082 #endif // _ExprIntrp_GenExp_HeaderFile
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