103 lines
2.2 KiB
C++
103 lines
2.2 KiB
C++
#include "stdafx.h"
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#include "xmlparse.h"
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struct ParserState
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{
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CComQIPtr<IXMLDocument, &IID_IXMLDocument> spXMLDocument;
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CComQIPtr<IXMLElement, &IID_IXMLElement> spXMLParent;
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};
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ParserState cParserState;
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static void OnStartElement(void *userData, const XML_Char *name, const XML_Char **atts);
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static void OnEndElement(void *userData, const XML_Char *name);
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static void OnCharacterData(void *userData, const XML_Char *s, int len);
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HRESULT ParseExpat(const char *pBuffer, unsigned long cbBufSize, IXMLDocument *pDocument)
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{
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if (pDocument == NULL)
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{
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return E_INVALIDARG;
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}
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XML_Parser parser = XML_ParserCreate(NULL);
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HRESULT hr = S_OK;
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cParserState.spXMLDocument = pDocument;
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// Initialise the XML parser
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XML_SetUserData(parser, &cParserState);
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XML_SetElementHandler(parser, OnStartElement, OnEndElement);
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XML_SetCharacterDataHandler(parser, OnCharacterData);
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// Parse the data
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if (!XML_Parse(parser, pBuffer, cbBufSize, 1))
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{
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/* TODO Print error message
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fprintf(stderr,
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"%s at line %d\n",
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XML_ErrorString(XML_GetErrorCode(parser)),
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XML_GetCurrentLineNumber(parser));
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*/
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hr = E_FAIL;
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}
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// Cleanup
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XML_ParserFree(parser);
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cParserState.spXMLDocument.Release();
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cParserState.spXMLParent.Release();
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return S_OK;
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}
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void OnStartElement(void *userData, const XML_Char *name, const XML_Char **atts)
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{
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ParserState *pState = (ParserState *) userData;
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if (pState)
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{
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USES_CONVERSION;
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CComQIPtr<IXMLElement, &IID_IXMLElement> spXMLElement;
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// Create a new element
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pState->spXMLDocument->createElement(
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CComVariant(XMLELEMTYPE_ELEMENT),
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CComVariant(A2OLE(name)),
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&spXMLElement);
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if (spXMLElement)
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{
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// Create each attribute
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for (int i = 0; atts[i] != NULL; i += 2)
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{
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const XML_Char *pszName = atts[i];
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const XML_Char *pszValue = atts[i+1];
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spXMLElement->setAttribute(A2OLE(pszName), CComVariant(A2OLE(pszValue)));
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}
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// Add the element to the end of the list
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pState->spXMLParent->addChild(spXMLElement, -1, -1);
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}
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}
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}
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void OnEndElement(void *userData, const XML_Char *name)
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{
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}
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void OnCharacterData(void *userData, const XML_Char *s, int len)
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{
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ParserState *pState = (ParserState *) userData;
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if (pState)
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{
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// TODO create TEXT element
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}
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}
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