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/**
* @file llxmltree.h
* @author Aaron Yonas, Richard Nelson
* @brief LLXmlTree class definition
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2010, 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_LLXMLTREE_H
#define LL_LLXMLTREE_H
#include <map>
#include <list>
#include "llstring.h"
#include "llxmlparser.h"
#include "string_table.h"
class LLColor4;
class LLColor4U;
class LLQuaternion;
class LLUUID;
class LLVector3;
class LLVector3d;
class LLXmlTreeNode;
class LLXmlTreeParser;
//////////////////////////////////////////////////////////////
// LLXmlTree
class LLXmlTree
{
friend class LLXmlTreeNode;
public:
LLXmlTree();
virtual ~LLXmlTree();
void cleanup();
virtual BOOL parseFile(const std::string &path, BOOL keep_contents = TRUE);
bool parseBufferStart(bool keep_contents = true);
bool parseBuffer(const char *buf, int len);
bool parseBufferFinalize();
LLXmlTreeNode* getRoot() { return mRoot; }
void dump();
void dumpNode( LLXmlTreeNode* node, const std::string& prefix );
void write(std::string &buffer) const;
void writeNode(LLXmlTreeNode *node, std::string &buffer, const std::string &indent) const;
static LLStdStringHandle addAttributeString( const std::string& name)
{
return sAttributeKeys.addString( name );
}
public:
// global
static LLStdStringTable sAttributeKeys;
protected:
LLXmlTreeNode* mRoot;
LLXmlTreeParser *mParser;
// local
LLStdStringTable mNodeNames;
};
//////////////////////////////////////////////////////////////
// LLXmlTreeNode
class LLXmlTreeNode
{
friend class LLXmlTree;
friend class LLXmlTreeParser;
protected:
// Protected since nodes are only created and destroyed by friend classes and other LLXmlTreeNodes
LLXmlTreeNode( const std::string& name, LLXmlTreeNode* parent, LLXmlTree* tree );
public:
virtual ~LLXmlTreeNode();
const std::string& getName()
{
return mName;
}
BOOL hasName( const std::string& name )
{
return mName == name;
}
BOOL hasAttribute( const std::string& name );
// Fast versions use cannonical_name handlee to entru in LLXmlTree::sAttributeKeys string table
BOOL getFastAttributeBOOL( LLStdStringHandle cannonical_name, BOOL& value );
BOOL getFastAttributeU8( LLStdStringHandle cannonical_name, U8& value );
BOOL getFastAttributeS8( LLStdStringHandle cannonical_name, S8& value );
BOOL getFastAttributeU16( LLStdStringHandle cannonical_name, U16& value );
BOOL getFastAttributeS16( LLStdStringHandle cannonical_name, S16& value );
BOOL getFastAttributeU32( LLStdStringHandle cannonical_name, U32& value );
BOOL getFastAttributeS32( LLStdStringHandle cannonical_name, S32& value );
BOOL getFastAttributeF32( LLStdStringHandle cannonical_name, F32& value );
BOOL getFastAttributeF64( LLStdStringHandle cannonical_name, F64& value );
BOOL getFastAttributeColor( LLStdStringHandle cannonical_name, LLColor4& value );
BOOL getFastAttributeColor4( LLStdStringHandle cannonical_name, LLColor4& value );
BOOL getFastAttributeColor4U( LLStdStringHandle cannonical_name, LLColor4U& value );
BOOL getFastAttributeVector3( LLStdStringHandle cannonical_name, LLVector3& value );
BOOL getFastAttributeVector3d( LLStdStringHandle cannonical_name, LLVector3d& value );
BOOL getFastAttributeQuat( LLStdStringHandle cannonical_name, LLQuaternion& value );
BOOL getFastAttributeUUID( LLStdStringHandle cannonical_name, LLUUID& value );
BOOL getFastAttributeString( LLStdStringHandle cannonical_name, std::string& value );
// Normal versions find 'name' in LLXmlTree::sAttributeKeys then call fast versions
virtual BOOL getAttributeBOOL( const std::string& name, BOOL& value );
virtual BOOL getAttributeU8( const std::string& name, U8& value );
virtual BOOL getAttributeS8( const std::string& name, S8& value );
virtual BOOL getAttributeU16( const std::string& name, U16& value );
virtual BOOL getAttributeS16( const std::string& name, S16& value );
virtual BOOL getAttributeU32( const std::string& name, U32& value );
virtual BOOL getAttributeS32( const std::string& name, S32& value );
virtual BOOL getAttributeF32( const std::string& name, F32& value );
virtual BOOL getAttributeF64( const std::string& name, F64& value );
virtual BOOL getAttributeColor( const std::string& name, LLColor4& value );
virtual BOOL getAttributeColor4( const std::string& name, LLColor4& value );
virtual BOOL getAttributeColor4U( const std::string& name, LLColor4U& value );
virtual BOOL getAttributeVector3( const std::string& name, LLVector3& value );
virtual BOOL getAttributeVector3d( const std::string& name, LLVector3d& value );
virtual BOOL getAttributeQuat( const std::string& name, LLQuaternion& value );
virtual BOOL getAttributeUUID( const std::string& name, LLUUID& value );
virtual BOOL getAttributeString( const std::string& name, std::string& value );
const std::string& getContents()
{
return mContents;
}
std::string getTextContents();
LLXmlTreeNode* getParent() { return mParent; }
LLXmlTreeNode* getFirstChild();
LLXmlTreeNode* getNextChild();
S32 getChildCount() { return (S32)mChildList.size(); }
LLXmlTreeNode* getChildByName( const std::string& name ); // returns first child with name, NULL if none
LLXmlTreeNode* getNextNamedChild(); // returns next child with name, NULL if none
protected:
const std::string* getAttribute( LLStdStringHandle name)
{
attribute_map_t::iterator iter = mAttributes.find(name);
return (iter == mAttributes.end()) ? 0 : iter->second;
}
private:
void addAttribute( const std::string& name, const std::string& value );
void appendContents( const std::string& str );
void addChild( LLXmlTreeNode* child );
void dump( const std::string& prefix );
void writeNoChild(std::string &buffer, const std::string &indent) const;
void writeStart(std::string &buffer, const std::string &indent) const;
void writeEnd(std::string &buffer, const std::string &indent) const;
void writeAttributes(std::string &buffer) const;
protected:
typedef std::map<LLStdStringHandle, const std::string*> attribute_map_t;
attribute_map_t mAttributes;
private:
std::string mName;
std::string mContents;
typedef std::list<class LLXmlTreeNode *> child_list_t;
child_list_t mChildList;
child_list_t::iterator mChildListIter;
typedef std::multimap<LLStdStringHandle, LLXmlTreeNode *> child_map_t;
child_map_t mChildMap; // for fast name lookups
child_map_t::iterator mChildMapIter;
child_map_t::iterator mChildMapEndIter;
LLXmlTreeNode* mParent;
LLXmlTree* mTree;
};
//////////////////////////////////////////////////////////////
// LLXmlTreeParser
class LLXmlTreeParser : public LLXmlParser
{
public:
LLXmlTreeParser(LLXmlTree* tree);
virtual ~LLXmlTreeParser();
BOOL parseFile(const std::string &path, LLXmlTreeNode** root, BOOL keep_contents );
void parseBufferStart(BOOL keep_contents);
bool parseBuffer(const char *buf, int len);
bool parseBufferFinalize(LLXmlTreeNode** root);
protected:
const std::string& tabs();
// Overrides from LLXmlParser
virtual void startElement(const char *name, const char **attributes);
virtual void endElement(const char *name);
virtual void characterData(const char *s, int len);
virtual void processingInstruction(const char *target, const char *data);
virtual void comment(const char *data);
virtual void startCdataSection();
virtual void endCdataSection();
virtual void defaultData(const char *s, int len);
virtual void unparsedEntityDecl(
const char* entity_name,
const char* base,
const char* system_id,
const char* public_id,
const char* notation_name);
//template method pattern
virtual LLXmlTreeNode* CreateXmlTreeNode(const std::string& name, LLXmlTreeNode* parent);
protected:
LLXmlTree* mTree;
LLXmlTreeNode* mRoot;
LLXmlTreeNode* mCurrent;
BOOL mDump; // Dump parse tree to llinfos as it is read.
BOOL mKeepContents;
};
#endif // LL_LLXMLTREE_H
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