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File indexing completed on 2026-05-24 08:18:02
0001 // Created on: 2001-07-20 0002 // Created by: Alexander GRIGORIEV 0003 // Copyright (c) 2001-2014 OPEN CASCADE SAS 0004 // 0005 // This file is part of Open CASCADE Technology software library. 0006 // 0007 // This library is free software; you can redistribute it and/or modify it under 0008 // the terms of the GNU Lesser General Public License version 2.1 as published 0009 // by the Free Software Foundation, with special exception defined in the file 0010 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT 0011 // distribution for complete text of the license and disclaimer of any warranty. 0012 // 0013 // Alternatively, this file may be used under the terms of Open CASCADE 0014 // commercial license or contractual agreement. 0015 0016 // AGV 060302: Input from std::istream 0017 0018 #ifndef LDOMParser_HeaderFile 0019 #define LDOMParser_HeaderFile 0020 0021 #include <LDOM_Document.hxx> 0022 #include <LDOM_OSStream.hxx> 0023 0024 class LDOM_XmlReader; 0025 0026 // class std::istream; 0027 0028 // Class LDOMParser 0029 // 0030 0031 class LDOMParser 0032 { 0033 public: 0034 // ---------- PUBLIC METHODS ---------- 0035 0036 LDOMParser() 0037 : myReader(NULL), 0038 myCurrentData(16384) 0039 { 0040 } 0041 0042 // Empty constructor 0043 0044 virtual Standard_EXPORT ~LDOMParser(); 0045 // Destructor 0046 0047 Standard_EXPORT LDOM_Document getDocument(); 0048 // Get the LDOM_Document 0049 0050 Standard_EXPORT Standard_Boolean parse(const char* const aFileName); 0051 // Parse a file 0052 // Returns True if error occurred, then GetError() can be called 0053 0054 Standard_EXPORT Standard_Boolean parse(std::istream& anInput, 0055 const Standard_Boolean theTagPerStep = Standard_False, 0056 const Standard_Boolean theWithoutRoot = Standard_False); 0057 // Parse a C++ stream 0058 // theTagPerStep - if true - extract characters from anInput until '>' 0059 // extracted character and parse only these characters. 0060 // if false - extract until eof 0061 // theWithoutRoot - if true - create fictive "document" element before parsing 0062 // and consider that document start element has been already read 0063 // - if false - parse a document as usual (parse header, document tag and etc) 0064 // Returns True if error occurred, then GetError() can be called 0065 0066 Standard_EXPORT const TCollection_AsciiString& GetError(TCollection_AsciiString& aData) const; 0067 // Return text describing a parsing error, or Empty if no error occurred 0068 0069 // Returns the byte order mask defined at the start of a stream 0070 Standard_EXPORT LDOM_OSStream::BOMType GetBOM() const; 0071 0072 protected: 0073 // ---------- PROTECTED METHODS ---------- 0074 0075 Standard_EXPORT virtual Standard_Boolean startElement(); 0076 // virtual hook on 'StartElement' event for descendant classes 0077 0078 Standard_EXPORT virtual Standard_Boolean endElement(); 0079 // virtual hook on 'EndElement' event for descendant classes 0080 0081 Standard_EXPORT LDOM_Element getCurrentElement() const; 0082 // to be called from startElement() and endElement() 0083 0084 private: 0085 // ---------- PRIVATE METHODS ---------- 0086 Standard_Boolean ParseDocument(Standard_IStream& theIStream, 0087 const Standard_Boolean theWithoutRoot = Standard_False); 0088 0089 Standard_Boolean ParseElement(Standard_IStream& theIStream, Standard_Boolean& theDocStart); 0090 0091 // ---------- PRIVATE (PROHIBITED) METHODS ---------- 0092 0093 LDOMParser(const LDOMParser& theOther); 0094 // Copy constructor 0095 0096 LDOMParser& operator=(const LDOMParser& theOther); 0097 // Assignment 0098 0099 private: 0100 // ---------- PRIVATE FIELDS ---------- 0101 0102 LDOM_XmlReader* myReader; 0103 Handle(LDOM_MemManager) myDocument; 0104 LDOM_OSStream myCurrentData; 0105 TCollection_AsciiString myError; 0106 }; 0107 0108 #endif
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