Imported existing code

indra/llxml/llxmlparser.h

@@ -0,0 +1,139 @@
+/** 
+ * @file llxmlparser.h
+ * @brief LLXmlParser class definition
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLXMLPARSER_H
+#define LL_LLXMLPARSER_H
+
+#ifndef XML_STATIC
+#define XML_STATIC 1
+#endif
+#ifdef LL_STANDALONE
+#include <expat.h>
+#else
+#include "expat/expat.h"
+#endif
+
+class LLXmlParser
+{
+public:
+	LLXmlParser();
+	virtual ~LLXmlParser();
+
+	// Parses entire file
+	BOOL parseFile(const std::string &path);
+
+	//	Parses some input. Returns 0 if a fatal error is detected.
+	//	The last call must have isFinal true;
+	//	len may be zero for this call (or any other).
+	S32 parse( const char* buf, int len, int isFinal );
+
+	const char* getErrorString();
+	
+	S32 getCurrentLineNumber();
+
+	S32 getCurrentColumnNumber();
+
+	S32 getDepth() { return mDepth; }
+
+protected:
+	// atts is array of name/value pairs, terminated by 0;
+	// names and values are 0 terminated.
+	virtual void startElement(const char *name, const char **atts) {}
+
+	virtual void endElement(const char *name) {}
+
+	// s is not 0 terminated.
+	virtual void characterData(const char *s, int len) {}
+	
+	// target and data are 0 terminated
+	virtual void processingInstruction(const char *target, const char *data) {}
+
+	// data is 0 terminated 
+	virtual void comment(const char *data) {}
+
+	virtual void startCdataSection() {}
+
+	virtual void endCdataSection() {}
+
+	//	This is called for any characters in the XML document for
+	//	which there is no applicable handler.  This includes both
+	//	characters that are part of markup which is of a kind that is
+	//	not reported (comments, markup declarations), or characters
+	//	that are part of a construct which could be reported but
+	//	for which no handler has been supplied. The characters are passed
+	//	exactly as they were in the XML document except that
+	//	they will be encoded in UTF-8.  Line boundaries are not normalized.
+	//	Note that a byte order mark character is not passed to the default handler.
+	//	There are no guarantees about how characters are divided between calls
+	//	to the default handler: for example, a comment might be split between
+	//	multiple calls.
+	virtual void defaultData(const char *s, int len) {}
+
+	//	This is called for a declaration of an unparsed (NDATA)
+	//	entity.  The base argument is whatever was set by XML_SetBase.
+	//	The entityName, systemId and notationName arguments will never be null.
+	//	The other arguments may be.
+	virtual void unparsedEntityDecl(
+		const char *entityName,
+		const char *base,
+		const char *systemId,
+		const char *publicId,
+		const char *notationName) {}
+
+public:
+	///////////////////////////////////////////////////////////////////////////////
+	// Pseudo-private methods.  These are only used by internal callbacks.
+	
+	static void startElementHandler(void *userData, const XML_Char *name, const XML_Char **atts);
+	static void endElementHandler(void *userData, const XML_Char *name);
+	static void characterDataHandler(void *userData, const XML_Char *s, int len);
+	static void processingInstructionHandler(void *userData, const XML_Char *target, const XML_Char *data);
+	static void commentHandler(void *userData, const XML_Char *data);
+	static void startCdataSectionHandler(void *userData);
+	static void endCdataSectionHandler(void *userData);
+	static void defaultDataHandler( void *userData, const XML_Char *s, int len);
+	static void unparsedEntityDeclHandler(
+		void *userData,
+		const XML_Char *entityName,
+		const XML_Char *base,
+		const XML_Char *systemId,
+		const XML_Char *publicId,
+		const XML_Char *notationName);
+
+
+protected:
+	XML_Parser		mParser;
+	int				mDepth;
+	std::string		mAuxErrorString;
+};
+
+#endif  // LL_LLXMLPARSER_H