Method Identify

src/util/tinyxml2/tinyxml2.cpp:656–723

	char* XMLDocument::Identify(char* p, XMLNode** node)
	{
		TIXMLASSERT(node);
		TIXMLASSERT(p);
		char* const start = p;
		int const startLine = _parseCurLineNum;
		p = XMLUtil::SkipWhiteSpace(p, &_parseCurLineNum);
		if (!*p) {
			*node = 0;
			TIXMLASSERT(p);
			return p;
		}

		// These strings define the matching patterns:
		static const char* xmlHeader = { "<?" };
		static const char* commentHeader = { "<!--" };
		static const char* cdataHeader = { "<![CDATA[" };
		static const char* dtdHeader = { "<!" };
		static const char* elementHeader = { "<" };	// and a header for everything else; check last.

		static const int xmlHeaderLen = 2;
		static const int commentHeaderLen = 4;
		static const int cdataHeaderLen = 9;
		static const int dtdHeaderLen = 2;
		static const int elementHeaderLen = 1;

		TIXMLASSERT(sizeof(XMLComment) == sizeof(XMLUnknown));		// use same memory pool
		TIXMLASSERT(sizeof(XMLComment) == sizeof(XMLDeclaration));	// use same memory pool
		XMLNode* returnNode = 0;
		if (XMLUtil::StringEqual(p, xmlHeader, xmlHeaderLen)) {
			returnNode = CreateUnlinkedNode<XMLDeclaration>(_commentPool);
			returnNode->_parseLineNum = _parseCurLineNum;
			p += xmlHeaderLen;
		}
		else if (XMLUtil::StringEqual(p, commentHeader, commentHeaderLen)) {
			returnNode = CreateUnlinkedNode<XMLComment>(_commentPool);
			returnNode->_parseLineNum = _parseCurLineNum;
			p += commentHeaderLen;
		}
		else if (XMLUtil::StringEqual(p, cdataHeader, cdataHeaderLen)) {
			XMLText* text = CreateUnlinkedNode<XMLText>(_textPool);
			returnNode = text;
			returnNode->_parseLineNum = _parseCurLineNum;
			p += cdataHeaderLen;
			text->SetCData(true);
		}
		else if (XMLUtil::StringEqual(p, dtdHeader, dtdHeaderLen)) {
			returnNode = CreateUnlinkedNode<XMLUnknown>(_commentPool);
			returnNode->_parseLineNum = _parseCurLineNum;
			p += dtdHeaderLen;
		}
		else if (XMLUtil::StringEqual(p, elementHeader, elementHeaderLen)) {
			returnNode = CreateUnlinkedNode<XMLElement>(_elementPool);
			returnNode->_parseLineNum = _parseCurLineNum;
			p += elementHeaderLen;
		}
		else {
			returnNode = CreateUnlinkedNode<XMLText>(_textPool);