SaraP
180 lines
6.6 KiB
C++
180 lines
6.6 KiB
C++
/*++
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Copyright (C) 2019 3MF Consortium
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Abstract:
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NMR_XMLReader_Native.h defines a XML reader class with a native XML parsing implementation.
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--*/
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#ifndef __NMR_XMLREADER_NATIVE
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#define __NMR_XMLREADER_NATIVE
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#include "Common/Platform/NMR_XmlReader.h"
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#include "Common/3MF_ProgressMonitor.h"
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#include <memory>
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#include <vector>
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#include <string>
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#include <map>
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#include <set>
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#include <array>
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#define NMR_MAXXMLNAMELENGTH 1000000
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#define NMR_MAXXMLSTRINGLENGTH 1000000
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#define NMR_MAXXMLDEPTH 1024
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#define NMR_NATIVEXMLREADER_MINBUFFERCAPACITY 1024
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#define NMR_NATIVEXMLREADER_MAXBUFFERCAPACITY (1024 * 1024 * 1024)
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#define NMR_NATIVEXMLREADER_BUFFERMARGIN 8
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#define NMR_NATIVEXMLTYPE_NONE 0
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#define NMR_NATIVEXMLTYPE_TEXT 1
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#define NMR_NATIVEXMLTYPE_ELEMENT 2
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#define NMR_NATIVEXMLTYPE_ELEMENTEND 3
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#define NMR_NATIVEXMLTYPE_CLOSEELEMENT 4
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#define NMR_NATIVEXMLTYPE_ATTRIBNAME 5
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#define NMR_NATIVEXMLTYPE_ATTRIBVALUE 6
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#define NMR_NATIVEXMLTYPE_COMMENT 7
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#define NMR_NATIVEXMLTYPE_CDATA 8
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#define NMR_NATIVEXMLTYPE_PROCESSINGINSTRUCTION 9
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#define NMR_NATIVEXMLTYPE_PROCESSINGINSTRUCTIONEND 10
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#define NMR_NATIVEXMLNS_XML_PREFIX "xml"
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#define NMR_NATIVEXMLNS_XML_URI "http://www.w3.org/XML/1998/namespace"
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#define NMR_NATIVEXMLNS_XMLNS_PREFIX "xmlns"
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#define NMR_NATIVEXMLNS_XMLNS_URI "http://www.w3.org/2000/xmlns/"
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namespace NMR {
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class CXmlReader_Native : public CXmlReader {
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private:
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nfUint32 m_progressCounter;
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PProgressMonitor m_pProgressMonitor;
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nfUint32 m_cbBufferCapacity;
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// Allocated memory of current and next chunk
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std::vector<nfChar> m_UTF8Buffer1;
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std::vector<nfChar> m_UTF8Buffer2;
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// Double buffer pointers to UTF16BufferX
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std::vector<nfChar> * m_pCurrentBuffer;
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std::vector<nfChar> * m_pNextBuffer;
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// parsed entity list
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std::vector<nfChar *> m_CurrentEntityList;
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std::vector<nfChar *> m_CurrentEntityPrefixes;
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std::vector<nfByte> m_CurrentEntityTypes;
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void performEscapeStringDecoding();
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// Insert List for 0 characters
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nfUint32 m_nZeroInsertIndex;
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std::vector<nfChar *> m_ZeroInsertArray;
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void pushZeroInsert(_In_ nfChar * pChar);
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void performZeroInserts();
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void clearZeroInserts();
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// how large is the current buffer
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nfUint32 m_nCurrentBufferSize;
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nfUint32 m_nCurrentEntityCount;
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nfUint32 m_nCurrentVerifiedEntityCount;
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nfUint32 m_nCurrentFullEntityCount;
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nfUint32 m_nCurrentEntityIndex;
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nfChar * m_pCurrentEntityPointer;
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// Parsing Flag
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nfBool m_bIsEOF;
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// How many characters have to be transferred into the next buffer?
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nfUint32 m_cbCurrentOverflowSize;
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nfChar * m_pCurrentName;
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nfChar * m_pCurrentPrefix;
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nfChar * m_pCurrentElementName;
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nfChar * m_pCurrentElementPrefix;
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nfChar * m_pCurrentValue;
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nfChar m_cNullString;
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// NameSpace handling
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std::string m_sDefaultNameSpace;
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nfUint32 m_cbDefaultNameSpaceLength;
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nfBool m_bNameSpaceIsAttribute;
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std::map<std::string, std::string> m_sNameSpaces;
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void registerNameSpace(_In_ std::string sPrefix, _In_ std::string sURI);
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// Fill next buffer chunk
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nfBool ensureFilledBuffer();
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void readNextBufferFromStream();
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// Parse Text Buffer
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nfChar * parseUnknown(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseText(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseElement(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseComment(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseEndElement(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseCloseElement(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseAttributes(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * skipSpaces(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseAttributeName(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseAttributeValue(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseAttributeValueDoubleQuote(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseAttributeValueSingleQuote(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseProcessingInstruction(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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nfChar * parseCloseProcessingInstruction(_In_ nfChar * pszStart, _In_ nfChar * pszEnd);
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void pushEntity(_In_ nfChar * pszwEntityStartChar, _In_ nfChar * pszwEntityEndDelimiter, _In_ nfChar * pszwNextEntityChar, _In_ nfByte nType, _In_ nfBool bParseForNamespaces, _In_ nfBool bEntityIsFinished);
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public:
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CXmlReader_Native(_In_ PImportStream pImportStream, _In_ nfUint32 cbBufferCapacity, _In_ PProgressMonitor pProgressMonitor);
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~CXmlReader_Native();
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virtual void GetValue(_Outptr_result_buffer_maybenull_(*pcwchValue + 1) const nfChar ** ppwszValue, _Out_opt_ nfUint32 *pcwchValue);
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virtual void GetLocalName(_Outptr_result_buffer_maybenull_(*pcwchLocalName + 1) const nfChar ** ppwszLocalName, _Out_opt_ nfUint32 *pcwchLocalName);
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virtual void GetNamespaceURI(_Outptr_result_buffer_maybenull_(*pcwchValue + 1) const nfChar ** ppwszValue, _Out_opt_ nfUint32 *pcwchValue);
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virtual bool GetNamespaceURI(const std::string &sNameSpacePrefix, std::string &sNameSpaceURI);
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virtual bool NamespaceRegistered(const std::string &sNameSpaceURI);
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virtual nfBool Read(_Out_ eXmlReaderNodeType & NodeType);
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virtual nfBool IsEOF();
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virtual nfBool IsEmptyElement();
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virtual nfBool MoveToFirstAttribute();
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virtual nfBool MoveToNextAttribute();
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virtual nfBool IsDefault();
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virtual void CloseElement();
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};
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typedef std::shared_ptr<CXmlReader_Native> PXmlReader_Native;
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}
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#endif // __NMR_XMLREADER_NATIVE
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