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89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
// Created on: 1992-06-22
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// Created by: Gilles DEBARBOUILLE
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// Copyright (c) 1992-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Units_Sentence_HeaderFile
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#define _Units_Sentence_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <Units_TokensSequence.hxx>
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#include <Standard_CString.hxx>
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class Units_Lexicon;
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class Units_Token;
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//! This class describes all the methods to create and
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//! compute an expression contained in a string.
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class Units_Sentence
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Creates and returns a Sentence, by analyzing the
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//! string <astring> with the lexicon <alexicon>.
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Standard_EXPORT Units_Sentence(const Handle(Units_Lexicon)& alexicon, const Standard_CString astring);
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//! For each constant encountered, sets the value.
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Standard_EXPORT void SetConstants();
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//! Returns <thesequenceoftokens>.
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Handle(Units_TokensSequence) Sequence() const;
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//! Sets the field <thesequenceoftokens> to <asequenceoftokens>.
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void Sequence (const Handle(Units_TokensSequence)& asequenceoftokens);
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//! Computes and returns in a token the result of the
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//! expression.
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Standard_EXPORT Handle(Units_Token) Evaluate();
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//! Return True if number of created tokens > 0
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//! (i.e creation of sentence is successful)
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Standard_Boolean IsDone() const;
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//! Useful for debugging.
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void Dump() const;
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protected:
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private:
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Handle(Units_TokensSequence) thesequenceoftokens;
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};
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#include <Units_Sentence.lxx>
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#endif // _Units_Sentence_HeaderFile
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