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File indexing completed on 2025-01-18 10:04:12
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 //class std::istream; 0026 0027 // Class LDOMParser 0028 // 0029 0030 class LDOMParser 0031 { 0032 public: 0033 // ---------- PUBLIC METHODS ---------- 0034 0035 LDOMParser () : myReader (NULL), myCurrentData (16384) {} 0036 // Empty constructor 0037 0038 virtual Standard_EXPORT ~LDOMParser (); 0039 // Destructor 0040 0041 Standard_EXPORT LDOM_Document 0042 getDocument (); 0043 // Get the LDOM_Document 0044 0045 Standard_EXPORT Standard_Boolean 0046 parse (const char * const aFileName); 0047 // Parse a file 0048 // Returns True if error occurred, then GetError() can be called 0049 0050 Standard_EXPORT Standard_Boolean 0051 parse (std::istream& anInput, 0052 const Standard_Boolean theTagPerStep = Standard_False, 0053 const Standard_Boolean theWithoutRoot = Standard_False); 0054 // Parse a C++ stream 0055 // theTagPerStep - if true - extract characters from anInput until '>' 0056 // extracted character and parse only these characters. 0057 // if false - extract until eof 0058 // theWithoutRoot - if true - create fictive "document" element before parsing 0059 // and consider that document start element has been already read 0060 // - if false - parse a document as usual (parse header, document tag and etc) 0061 // Returns True if error occurred, then GetError() can be called 0062 0063 Standard_EXPORT const TCollection_AsciiString& 0064 GetError (TCollection_AsciiString& aData) const; 0065 // Return text describing a parsing error, or Empty if no error occurred 0066 0067 // Returns the byte order mask defined at the start of a stream 0068 Standard_EXPORT LDOM_OSStream::BOMType GetBOM() const; 0069 0070 protected: 0071 // ---------- PROTECTED METHODS ---------- 0072 0073 Standard_EXPORT virtual Standard_Boolean 0074 startElement (); 0075 // virtual hook on 'StartElement' event for descendant classes 0076 0077 Standard_EXPORT virtual Standard_Boolean 0078 endElement (); 0079 // virtual hook on 'EndElement' event for descendant classes 0080 0081 Standard_EXPORT LDOM_Element 0082 getCurrentElement () const; 0083 // to be called from startElement() and endElement() 0084 0085 private: 0086 // ---------- PRIVATE METHODS ---------- 0087 Standard_Boolean ParseDocument (Standard_IStream& theIStream, 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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