Merged 0.3 in trunk

git-svn-id: http://pugixml.googlecode.com/svn/trunk@68 99668b35-9821-0410-8761-19e4c4f06640

1 files changed, 1735 insertions, 664 deletions

diff --git a/src/pugixml.hpp b/src/pugixml.hpp
index de7939e..323994d 100644
--- a/src/pugixml.hpp
+++ b/src/pugixml.hpp
@@ -1,664 +1,1735 @@
-///////////////////////////////////////////////////////////////////////////////

-//

-// Pug Improved XML Parser - Version 0.2

-// --------------------------------------------------------

-// Copyright (C) 2006-2007, by Arseny Kapoulkine (arseny.kapoulkine@gmail.com)

-// This work is based on the pugxml parser, which is:

-// Copyright (C) 2003, by Kristen Wegner (kristen@tima.net)

-// Released into the Public Domain. Use at your own risk.

-// See pugxml.xml for further information, history, etc.

-// Contributions by Neville Franks (readonly@getsoft.com).

-//

-///////////////////////////////////////////////////////////////////////////////

-

-#ifndef HEADER_PUGIXML_HPP

-#define HEADER_PUGIXML_HPP

-

-// Uncomment this to disable STL

-// #define PUGIXML_NO_STL

-

-#ifndef PUGIXML_NO_STL

-#	include <string>

-#	include <istream>

-#endif

-

-#include <cstddef>

-#include <cstring>

-

-/// The PugiXML Parser namespace.

-namespace pugi

-{

-	/// Tree node classification.

-	/// See 'xml_node_struct::type'

-	enum xml_node_type

-	{

-		node_null,			///< An undifferentiated entity.

-		node_document,		///< A document tree's absolute root.

-		node_element,		///< E.g. '<...>'

-		node_pcdata,		///< E.g. '>...<'

-		node_cdata,			///< E.g. '<![CDATA[...]]>'

-		node_comment,		///< E.g. '<!--...-->'

-		node_pi				///< E.g. '<?...?>'

-	};

-

-	/// Parser Options

-	const size_t memory_block_size = 32768;		///< Memory block size, 32 kb

-

-	const unsigned int parse_minimal			= 0x00000000; ///< Unset the following flags.

-	const unsigned int parse_pi					= 0x00000001; ///< Parse '<?...?>'

-	const unsigned int parse_comments			= 0x00000002; ///< Parse '<!--...-->'

-	const unsigned int parse_cdata				= 0x00000004; ///< Parse '<![CDATA[...]]>'

-	const unsigned int parse_ws_pcdata			= 0x00000008; ///< Do not skip PCDATA that consists only of whitespaces

-	const unsigned int parse_ext_pcdata			= 0x00000010; ///< Do not skip PCDATA that is outside all tags (i.e. root)

-	const unsigned int parse_escapes			= 0x00000020; ///< Parse &lt;, &gt;, &amp;, &quot;, &apos;, &#.. sequences

-	const unsigned int parse_wnorm_attribute	= 0x00000080; ///< Normalize spaces in attributes (convert space-like characters to spaces + merge adjacent spaces + trim leading/trailing spaces)

-	const unsigned int parse_wconv_attribute	= 0x00000100; ///< Convert space-like characters to spaces in attributes (only if wnorm is not set)

-	const unsigned int parse_eol				= 0x00000200; ///< Perform EOL handling

-	const unsigned int parse_check_end_tags		= 0x00000400; ///< Check start and end tag names and return error if names mismatch

-	const unsigned int parse_match_end_tags		= 0x00000800; ///< Try to find corresponding start tag for an end tag

-	///< Set all flags, except parse_ws_pcdata, parse_trim_attribute, parse_pi and parse_comments

-	const unsigned int parse_default			= parse_cdata | parse_ext_pcdata | parse_escapes | parse_wconv_attribute | parse_eol | parse_check_end_tags;

-	const unsigned int parse_noset				= 0x80000000; ///< Parse with flags in xml_parser

-

-	const unsigned int parse_w3c				= parse_pi | parse_comments | parse_cdata |

-												parse_escapes | parse_wconv_attribute |

-												parse_check_end_tags | parse_ws_pcdata | parse_eol;

-

-	/// Forward declarations

-	struct xml_attribute_struct;

-	struct xml_node_struct;

-

-	class xml_node_iterator;

-	class xml_attribute_iterator;

-

-	class xml_tree_walker;

-

-	/// Provides a light-weight wrapper for manipulating xml_attribute_struct structures.

-	///	Note: xml_attribute does not create any memory for the attribute it wraps; 

-	///	it only wraps a pointer to an existing xml_attribute_struct.

-	class xml_attribute

-	{

-		friend class xml_attribute_iterator;

-		friend class xml_node;

-

-	private:

-		const xml_attribute_struct* _attr; ///< The internal attribute pointer.

-	

-    	/// Safe bool type

-    	typedef const xml_attribute_struct* xml_attribute::*unspecified_bool_type;

-

-		/// Initializing ctor

-		explicit xml_attribute(const xml_attribute_struct* attr);

-

-	public:

-		/// Default ctor

-		xml_attribute();

-		

-	public:

-		/// Comparison operators

-		bool operator==(const xml_attribute& r) const;

-		bool operator!=(const xml_attribute& r) const;

-		bool operator<(const xml_attribute& r) const;

-		bool operator>(const xml_attribute& r) const;

-		bool operator<=(const xml_attribute& r) const;

-		bool operator>=(const xml_attribute& r) const;

-	

-    	/// Safe bool conversion

-    	operator unspecified_bool_type() const;

-

-    	/// Get next attribute if any, else xml_attribute()

-    	xml_attribute next_attribute() const;

-

-    	/// Get previous attribute if any, else xml_attribute()

-    	xml_attribute previous_attribute() const;

-

-		/// Cast attribute value as int. If not found, return 0.

-		/// \return Attribute value as int, or 0.

-		int as_int() const;

-

-		/// Cast attribute value as double. If not found, return 0.0.

-		/// \return Attribute value as double, or 0.0.

-		double as_double() const;

-	

-		/// Cast attribute value as float. If not found, return 0.0.

-		/// \return Attribute value as float, or 0.0.

-		float as_float() const;

-

-		/// Cast attribute value as bool. If not found, return false.

-		/// \return Attribute value as bool, or false.

-		bool as_bool() const;

-

-	public:

-		/// True if internal pointer is valid

-		bool empty() const;

-

-	public:

-		/// Access the attribute name.

-		const char* name() const;

-

-		/// Access the attribute value.

-		const char* value() const;

-	};

-

-	/// Provides a light-weight wrapper for manipulating xml_node_struct structures.

-	class xml_node

-	{

-		friend class xml_node_iterator;

-		friend class xml_parser;

-

-	private:

-		const xml_node_struct* _root; ///< Pointer to node root.

-

-    	/// Safe bool type

-    	typedef const xml_node_struct* xml_node::*unspecified_bool_type;

-

-	private:

-		/// Node is tree root.

-		bool type_document() const;

-

-	public:

-		/// Default constructor.

-		///	Node root points to a dummy 'xml_node_struct' structure. Test for this 

-		///	with 'empty'.

-		xml_node();

-

-		/// Construct, wrapping the given 'xml_node_struct' pointer.

-		explicit xml_node(const xml_node_struct* p);

-

-	public:

-		/// Base iterator type (for child nodes). Same as 'child_iterator'.

-		typedef xml_node_iterator iterator;

-

-		/// Attribute iterator type.

-		typedef xml_attribute_iterator attribute_iterator;

-

-		/// Access the begin iterator for this node's collection of child nodes.

-		/// Same as 'children_begin'.

-		iterator begin() const;

-	

-		/// Access the end iterator for this node's collection of child nodes.

-		/// Same as 'children_end'.

-		iterator end() const;

-		

-		/// Access the begin iterator for this node's collection of child nodes.

-		/// Same as 'begin'.

-		iterator children_begin() const;

-	

-		/// Access the end iterator for this node's collection of child nodes.

-		/// Same as 'end'.

-		iterator children_end() const;

-	

-		/// Access the begin iterator for this node's collection of attributes.

-		attribute_iterator attributes_begin() const;

-	

-		/// Access the end iterator for this node's collection of attributes.

-		attribute_iterator attributes_end() const;

-

-		/// Access the begin iterator for this node's collection of siblings.

-		iterator siblings_begin() const;

-	

-		/// Access the end iterator for this node's collection of siblings.

-		iterator siblings_end() const;

-	

-	public:

-    	/// Safe bool conversion

-		operator unspecified_bool_type() const;

-	

-		/// Comparison operators

-		bool operator==(const xml_node& r) const;

-		bool operator!=(const xml_node& r) const;

-		bool operator<(const xml_node& r) const;

-		bool operator>(const xml_node& r) const;

-		bool operator<=(const xml_node& r) const;

-		bool operator>=(const xml_node& r) const;

-

-	public:

-		/// Node pointer is null, or type is node_null. Same as type_null.

-		bool empty() const;

-

-	public:

-		/// Access node entity type.

-		xml_node_type type() const;

-

-		/// Access pointer to node name if any, else empty string.

-		const char* name() const;

-

-		/// Access pointer to data if any, else empty string.

-		const char* value() const;

-	

-		/// Access child node at name as xml_node or xml_node(NULL) if bad name.

-		xml_node child(const char* name) const;

-

-		/// Access child node at name as xml_node or xml_node(NULL) if bad name.

-		/// Enable wildcard matching.

-		xml_node child_w(const char* name) const;

-

-		/// Access the attribute having 'name'.

-		xml_attribute attribute(const char* name) const;

-

-		/// Access the attribute having 'name'.

-		/// Enable wildcard matching.

-		xml_attribute attribute_w(const char* name) const;

-

-		/// Access sibling node at name as xml_node or xml_node(NULL) if bad name.

-		xml_node sibling(const char* name) const;

-

-		/// Access sibling node at name as xml_node or xml_node(NULL) if bad name.

-		/// Enable wildcard matching.

-		xml_node sibling_w(const char* name) const;

-

-		/// Access current node's next sibling by position and name.

-		xml_node next_sibling(const char* name) const;

-

-		/// Access current node's next sibling by position and name.

-		/// Enable wildcard matching.

-		xml_node next_sibling_w(const char* name) const;

-

-		/// Access current node's next sibling by position.

-		xml_node next_sibling() const;

-

-		/// Access current node's previous sibling by position and name.

-		xml_node previous_sibling(const char* name) const;

-

-		/// Access current node's previous sibling by position and name.

-		/// Enable wildcard matching.

-		xml_node previous_sibling_w(const char* name) const;

-

-		/// Access current node's previous sibling by position.

-		xml_node previous_sibling() const;

-

-		/// Access node's parent if any, else xml_node(NULL)

-		xml_node parent() const;

-

-		/// Return PCDATA/CDATA that is child of current node. If none, return empty string.

-		const char* child_value() const;

-

-		/// Return PCDATA/CDATA that is child of specified child node. If none, return empty string.

-		const char* child_value(const char* name) const;

-

-		/// Return PCDATA/CDATA that is child of specified child node. If none, return empty string.

-		/// Enable wildcard matching.

-		const char* child_value_w(const char* name) const;

-

-	public:

-		/// Access node's first attribute if any, else xml_attribute()

-		xml_attribute first_attribute() const;

-

-		/// Access node's last attribute if any, else xml_attribute()

-        xml_attribute last_attribute() const;

-

-		/// Find all elements having the given name.

-		template <typename OutputIterator> void all_elements_by_name(const char* name, OutputIterator it) const;

-

-		/// Find all elements having the given name.

-		/// Enable wildcard matching.

-		template <typename OutputIterator> void all_elements_by_name_w(const char* name, OutputIterator it) const;

-

-		/// Access node's first child if any, else xml_node()

-		xml_node first_child() const;

-

-		/// Access node's last child if any, else xml_node()

-        xml_node last_child() const;

-		

-		/// Find attribute using the predicate

-		/// Predicate should take xml_attribute and return bool.

-		template <typename Predicate> xml_attribute find_attribute(Predicate pred) const;

-

-		/// Find child using the predicate

-		/// Predicate should take xml_node and return bool.

-		template <typename Predicate> xml_node find_child(Predicate pred) const;

-

-		/// Recursively-implemented depth-first find element using the predicate

-		/// Predicate should take xml_node and return bool.

-		template <typename Predicate> xml_node find_element(Predicate pred) const;

-

-		/// Recursively-implemented depth-first find the first matching element. 

-		/// Use for shallow drill-downs.

-		xml_node first_element(const char* name) const;

-

-		/// Recursively-implemented depth-first find the first matching element. 

-		/// Use for shallow drill-downs.

-		/// Enable wildcard matching.

-		xml_node first_element_w(const char* name) const;

-

-		/// Recursively-implemented depth-first find the first matching element 

-		/// also having matching PCDATA.

-		xml_node first_element_by_value(const char* name, const char* value) const;

-

-		/// Recursively-implemented depth-first find the first matching element 

-		/// also having matching PCDATA.

-		/// Enable wildcard matching.

-		xml_node first_element_by_value_w(const char* name, const char* value) const;

-

-		/// Recursively-implemented depth-first find the first matching element 

-		/// also having matching attribute.

-		xml_node first_element_by_attribute(const char* name, const char* attr_name, const char* attr_value) const;

-

-		/// Recursively-implemented depth-first find the first matching element 

-		/// also having matching attribute.

-		/// Enable wildcard matching.

-		xml_node first_element_by_attribute_w(const char* name, const char* attr_name, const char* attr_value) const;

-

-		/// Recursively-implemented depth-first find the first element 

-		/// having matching attribute.

-		xml_node first_element_by_attribute(const char* attr_name, const char* attr_value) const;

-

-		/// Recursively-implemented depth-first find the first element 

-		/// having matching attribute.

-		/// Enable wildcard matching.

-		xml_node first_element_by_attribute_w(const char* attr_name, const char* attr_value) const;

-

-		/// Recursively-implemented depth-first find the first matching entity. 

-		/// Use for shallow drill-downs.

-		xml_node first_node(xml_node_type type) const;

-

-#ifndef PUGIXML_NO_STL

-		/// Compile the absolute node path from root as a text string.

-		/// \param delimiter - Delimiter character to insert between element names.

-		/// \return path string (e.g. with '/' as delimiter, '/document/.../this'.

-		std::string path(char delimiter = '/') const;

-#endif

-

-		/// Search for a node by path.

-		/// \param path - Path string; e.g. './foo/bar' (relative to node), '/foo/bar' (relative 

-		/// to root), '../foo/bar' (pop relative position).

-		/// \param delimiter - Delimiter character to use in tokenizing path.

-		/// \return Matching node, or xml_node() if not found.

-		xml_node first_element_by_path(const char* path, char delimiter = '/') const;

-

-		/// Recursively traverse the tree.

-		bool traverse(xml_tree_walker& walker) const;

-	};

-

-	/// Child node iterator.

-	class xml_node_iterator

-#ifndef PUGIXML_NO_STL

-	: public std::iterator<std::bidirectional_iterator_tag, const xml_node>

-#endif

-	{

-		friend class xml_node;

-

-	private:

-		xml_node _prev;

-		xml_node _wrap;

-

-		/// Initializing ctor

-		explicit xml_node_iterator(const xml_node_struct* ref);

-	public:

-		/// Default ctor

-		xml_node_iterator();

-

-		/// Initializing ctor

-		xml_node_iterator(const xml_node& node);

-

-		/// Initializing ctor (for past-the-end)

-		xml_node_iterator(const xml_node_struct* ref, const xml_node_struct* prev);

-

-		bool operator==(const xml_node_iterator& rhs) const;

-		bool operator!=(const xml_node_iterator& rhs) const;

-

-		const xml_node& operator*() const;

-		const xml_node* operator->() const;

-

-		const xml_node_iterator& operator++();

-		xml_node_iterator operator++(int);

-		

-		const xml_node_iterator& operator--();

-		xml_node_iterator operator--(int);

-	};

-

-	/// Attribute iterator.

-	class xml_attribute_iterator

-#ifndef PUGIXML_NO_STL

-	: public std::iterator<std::bidirectional_iterator_tag, const xml_attribute>

-#endif

-	{

-		friend class xml_node;

-

-	private:

-		xml_attribute _prev;

-		xml_attribute _wrap;

-

-		/// Initializing ctor

-		explicit xml_attribute_iterator(const xml_attribute_struct* ref);

-	public:

-		/// Default ctor

-		xml_attribute_iterator();

-

-		/// Initializing ctor

-		xml_attribute_iterator(const xml_attribute& attr);

-

-		/// Initializing ctor (for past-the-end)

-		xml_attribute_iterator(const xml_attribute_struct* ref, const xml_attribute_struct* prev);

-

-		bool operator==(const xml_attribute_iterator& rhs) const;

-		bool operator!=(const xml_attribute_iterator& rhs) const;

-

-		const xml_attribute& operator*() const;

-		const xml_attribute* operator->() const;

-

-		const xml_attribute_iterator& operator++();

-		xml_attribute_iterator operator++(int);

-		

-		const xml_attribute_iterator& operator--();

-		xml_attribute_iterator operator--(int);

-	};

-

-	/// Abstract tree walker class for xml_node::traverse().

-	class xml_tree_walker

-	{

-	private:

-		int _deep; ///< Current node depth.

-	public:

-		/// Default ctor

-		xml_tree_walker();

-

-		/// Virtual dtor

-		virtual ~xml_tree_walker();

-

-	public:

-		/// Increment node depth.

-		virtual void push();

-

-		/// Decrement node depth

-		virtual void pop();

-

-		/// Access node depth

-		virtual int depth() const;

-	

-	public:

-		/// Callback when traverse on a node begins.

-		/// \return returning false will abort the traversal.

-		virtual bool begin(const xml_node&);

-

-		/// Callback when traverse on a node ends.

-		/// \return Returning false will abort the traversal.

-		virtual bool end(const xml_node&);

-	};

-

-	/// Memory block (internal)

-	struct xml_memory_block

-	{

-		xml_memory_block();

-

-		xml_memory_block* next;

-		size_t size;

-

-		char data[memory_block_size];

-	};

-

-	struct transfer_ownership_tag {};

-

-	/// Provides a high-level interface to the XML parser.

-	class xml_parser

-	{

-	private:

-		char*				_buffer; ///< character buffer

-

-		xml_memory_block	_memory; ///< Memory block

-		

-		xml_node_struct*	_xmldoc; ///< Pointer to current XML document tree root.

-		unsigned int		_optmsk; ///< Parser options.

-	

-		xml_parser(const xml_parser&);

-		const xml_parser& operator=(const xml_parser&);

-

-		void free();	///< free memory

-

-	public:

-		/// Constructor.

-		/// \param optmsk - Options mask.

-		xml_parser(unsigned int optmsk = parse_default);

-

-		/// Parse constructor.

-		/// \param xmlstr - readwrite string with xml data

-		/// \param optmsk - Options mask.

-		/// \see parse

-		xml_parser(char* xmlstr, unsigned int optmsk = parse_default);

-

-		/// Parse constructor that gains ownership.

-		/// \param xmlstr - readwrite string with xml data

-		/// \param optmsk - Options mask.

-		/// \see parse

-		xml_parser(const transfer_ownership_tag&, char* xmlstr, unsigned int optmsk = parse_default);

-

-#ifndef PUGIXML_NO_STL

-		/// Parse constructor.

-		/// \param stream - stream with xml data

-		/// \param optmsk - Options mask.

-		/// \see parse

-		xml_parser(std::istream& stream, unsigned int optmsk = parse_default);

-#endif

-

-		/// Dtor

-		~xml_parser();

-

-	public:

-		/// Cast as xml_node (same as document).

-		operator xml_node() const;

-

-		/// Returns the root wrapped by an xml_node.

-		xml_node document() const;

-

-	public:

-		/// Get parser options mask.

-		unsigned int options() const;

-

-		/// Set parser options mask.

-		unsigned int options(unsigned int optmsk);

-

-	public:

-#ifndef PUGIXML_NO_STL

-		/// Parse the given XML stream

-		/// \param stream - stream with xml data

-		/// \param optmsk - Options mask.

-		void parse(std::istream& stream, unsigned int optmsk = parse_noset);

-#endif

-

-		/// Parse the given XML string in-situ.

-		/// \param xmlstr - readwrite string with xml data

-		/// \param optmsk - Options mask.

-		/// \return last position or NULL

-		/// \rem input string is zero-segmented

-		char* parse(char* xmlstr, unsigned int optmsk = parse_noset);

-		

-		/// Parse the given XML string in-situ (gains ownership).

-		/// \param xmlstr - readwrite string with xml data

-		/// \param optmsk - Options mask.

-		/// \return last position or NULL

-		/// \rem input string is zero-segmented

-		char* parse(const transfer_ownership_tag&, char* xmlstr, unsigned int optmsk = parse_noset);

-	};

-

-	/// Utility functions for xml

-	

-#ifndef PUGIXML_NO_STL

-	/// Convert utf16 to utf8

-	std::string utf8(const wchar_t* str);

-	

-	/// Convert utf8 to utf16

-	std::wstring utf16(const char* str);

-#endif

-}

-

-/// Inline implementation

-

-namespace pugi

-{

-	namespace impl

-	{

-		int strcmpwild(const char*, const char*);

-	}

-

-	template <typename OutputIterator> void xml_node::all_elements_by_name(const char* name, OutputIterator it) const

-	{

-		if (empty()) return;

-		

-		for (xml_node node = first_child(); node; node = node.next_sibling())

-		{

-			if (!strcmp(name, node.name()))

-			{

-				*it = node;

-				++it;

-			}

-			

-			if (node.first_child()) node.all_elements_by_name(name, it);

-		}

-	}

-

-	template <typename OutputIterator> void xml_node::all_elements_by_name_w(const char* name, OutputIterator it) const

-	{

-		if (empty()) return;

-		

-		for (xml_node node = first_child(); node; node = node.next_sibling())

-		{

-			if (!impl::strcmpwild(name, node.name()))

-			{

-				*it = node;

-				++it;

-			}

-			

-			if (node.first_child()) node.all_elements_by_name_w(name, it);

-		}

-	}

-	

-	template <typename Predicate> inline xml_attribute xml_node::find_attribute(Predicate pred) const

-	{

-		if (!empty())

-			for (xml_attribute attrib = first_attribute(); attrib; attrib = attrib.next_attribute())

-				if (pred(attrib))

-					return attrib;

-		

-		return xml_attribute();

-	}

-

-	template <typename Predicate> inline xml_node xml_node::find_child(Predicate pred) const

-	{

-		if (!empty())

-			for (xml_node node = first_child(); node; node = node.next_sibling())

-				if (pred(node))

-					return node;

-

-		return xml_node();

-	}

-

-	template <typename Predicate> inline xml_node xml_node::find_element(Predicate pred) const

-	{

-		if (!empty())

-			for (xml_node node = first_child(); node; node = node.next_sibling())

-			{

-				if (pred(node))

-					return node;

-				

-				if (node.first_child())

-				{

-					xml_node found = node.find_element(pred);

-					if (found) return found;

-				}

-			}

-

-		return xml_node();

-	}

-}

-

-#endif

+///////////////////////////////////////////////////////////////////////////////
+//
+// Pug Improved XML Parser - Version 0.3
+// --------------------------------------------------------
+// Copyright (C) 2006-2007, by Arseny Kapoulkine (arseny.kapoulkine@gmail.com)
+// This work is based on the pugxml parser, which is:
+// Copyright (C) 2003, by Kristen Wegner (kristen@tima.net)
+// Released into the Public Domain. Use at your own risk.
+// See pugxml.xml for further information, history, etc.
+// Contributions by Neville Franks (readonly@getsoft.com).
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef HEADER_PUGIXML_HPP
+#define HEADER_PUGIXML_HPP
+
+#include "pugiconfig.hpp"
+
+#ifndef PUGIXML_NO_STL
+#	include <string>
+#	include <istream>
+#	include <exception>
+#endif
+
+// No XPath without STL
+#ifdef PUGIXML_NO_STL
+#	ifndef PUGIXML_NO_XPATH
+#		define PUGIXML_NO_XPATH
+#	endif
+#endif
+
+#include <cstddef>
+#include <cstring>
+
+/// The PugiXML Parser namespace.
+namespace pugi
+{
+	/// Tree node classification.
+	enum xml_node_type
+	{
+		node_null,			///< Undifferentiated entity
+		node_document,		///< A document tree's absolute root.
+		node_element,		///< E.g. '<...>'
+		node_pcdata,		///< E.g. '>...<'
+		node_cdata,			///< E.g. '<![CDATA[...]]>'
+		node_comment,		///< E.g. '<!--...-->'
+		node_pi				///< E.g. '<?...?>'
+	};
+
+	// Parsing options
+
+	/**
+	 * Memory block size, used for fast allocator. Memory for DOM tree is allocated in blocks of
+	 * memory_block_size + 4.
+	 * This value affects size of xml_memory class.
+	 */
+	const size_t memory_block_size = 32768;
+
+	/**
+	 * Minimal parsing mode. Equivalent to turning all other flags off. This set of flags means
+	 * that pugixml does not add pi/cdata sections or comments to DOM tree and does not perform
+	 * any conversions for input data, meaning fastest parsing.
+	 */
+	const unsigned int parse_minimal			= 0x0000;
+
+	/**
+	 * This flag determines if processing instructions (nodes with type node_pi; such nodes have the
+	 * form of <? target content ?> or <? target ?> in XML) are to be put in DOM tree. If this flag is off,
+	 * they are not put in the tree, but are still parsed and checked for correctness.
+	 *
+	 * The corresponding node in DOM tree will have type node_pi, name "target" and value "content",
+	 * if any.
+	 *
+	 * Note that <?xml ...?> (document declaration) is not considered to be a PI.
+	 *
+	 * This flag is off by default.
+	 */
+	const unsigned int parse_pi					= 0x0001;
+
+	/**
+	 * This flag determines if comments (nodes with type node_comment; such nodes have the form of
+	 * <!-- content --> in XML) are to be put in DOM tree. If this flag is off, they are not put in
+	 * the tree, but are still parsed and checked for correctness.
+	 *
+	 * The corresponding node in DOM tree will have type node_comment, empty name and value "content".
+	 *
+	 * This flag is off by default.
+	 */
+	const unsigned int parse_comments			= 0x0002;
+
+	/**
+	 * This flag determines if CDATA sections (nodes with type node_cdata; such nodes have the form
+	 * of <![CDATA[[content]]> in XML) are to be put in DOM tree. If this flag is off, they are not
+	 * put in the tree, but are still parsed and checked for correctness.
+	 *
+	 * The corresponding node in DOM tree will have type node_cdata, empty name and value "content".
+	 *
+	 * This flag is on by default.
+	 */
+	const unsigned int parse_cdata				= 0x0004;
+
+	/**
+	 * This flag determines if nodes with PCDATA (regular text) that consist only of whitespace
+	 * characters are to be put in DOM tree. Often whitespace-only data is not significant for the
+	 * application, and the cost of allocating and storing such nodes (both memory and speed-wise)
+	 * can be significant. For example, after parsing XML string "<node> <a/> </node>", <node> element
+	 * will have 3 children when parse_ws_pcdata is set (child with type node_pcdata and value=" ",
+	 * child with type node_element and name "a", and another child with type node_pcdata and
+	 * value=" "), and only 1 child when parse_ws_pcdata is not set.
+	 * 
+	 * This flag is off by default.
+	 */
+	const unsigned int parse_ws_pcdata			= 0x0008;
+
+	/**
+	 * This flag determines if character and entity references are to be expanded during the parsing
+	 * process. Character references are &amp;#...; or &amp;#x...; (... is Unicode numeric representation of
+     * character in either decimal (&amp;#...;) or hexadecimal (&amp;#x...;) form), entity references are &amp;...;
+     * Note that as pugixml does not handle DTD, the only allowed entities are predefined ones - 
+     * &amp;lt;, &amp;gt;, &amp;amp;, &amp;apos; and &amp;quot;. If character/entity reference can not be expanded, it is
+     * leaved as is, so you can do additional processing later.
+     * Reference expansion is performed in attribute values and PCDATA content.
+     *
+     * This flag is on by default.
+     */
+	const unsigned int parse_escapes			= 0x0010;
+
+	/**
+	 * This flag determines if EOL handling (that is, replacing sequences 0x0d 0x0a by a single 0x0a
+	 * character, and replacing all standalone 0x0d characters by 0x0a) is to be performed on input
+	 * data (that is, comments contents, PCDATA/CDATA contents and attribute values).
+	 *
+	 * This flag is on by default.
+	 */
+	const unsigned int parse_eol				= 0x0020;
+	
+ 	/**
+ 	 * This flag determines if attribute value normalization should be performed for all attributes,
+ 	 * assuming that their type is not CDATA. This means, that:
+ 	 * 1. Whitespace characters (new line, tab and space) are replaced with space (' ')
+ 	 * 2. Afterwards sequences of spaces are replaced with a single space
+ 	 * 3. Leading/trailing whitespace characters are trimmed
+ 	 * 
+ 	 * This flag is off by default.
+ 	 */
+ 	const unsigned int parse_wnorm_attribute	= 0x0040;
+
+ 	/**
+ 	 * This flag determines if attribute value normalization should be performed for all attributes,
+ 	 * assuming that their type is CDATA. This means, that whitespace characters (new line, tab and
+ 	 * space) are replaced with space (' '). Note, that the actions performed while this flag is on
+ 	 * are also performed if parse_wnorm_attribute is on, so this flag has no effect if
+ 	 * parse_wnorm_attribute flag is set.
+ 	 * 
+ 	 * This flag is on by default.
+ 	 */
+ 	const unsigned int parse_wconv_attribute	= 0x0080;
+	
+	/**
+     * This is the default set of flags. It includes parsing CDATA sections (comments/PIs are not
+     * parsed), performing character and entity reference expansion, replacing whitespace characters
+     * with spaces in attribute values and performing EOL handling. Note, that PCDATA sections
+     * consisting only of whitespace characters are not parsed (by default) for performance reasons.
+     */
+	const unsigned int parse_default			= parse_cdata | parse_escapes | parse_wconv_attribute | parse_eol;
+
+	// Formatting flags
+	
+	/**
+	 * Indent the nodes that are written to output stream with as many indentation strings as deep
+	 * the node is in DOM tree.
+	 *
+	 * This flag is on by default.
+	 */
+	const unsigned int format_indent	= 0x01;
+	
+	/**
+	 * This flag determines how the non-printable symbols are written to output stream - they are
+	 * either considered UTF-8 and are written as UTF-8 character, escaped with &#...;, or they are
+	 * considered to be ASCII and each ASCII character is escaped separately.
+	 *
+	 * This flag is on by default.
+	 */
+	const unsigned int format_utf8		= 0x02;
+	
+	/**
+	 * This flag determines if UTF-8 BOM is to be written to output stream.
+	 *
+	 * This flag is off by default.
+	 */
+	const unsigned int format_write_bom	= 0x04;
+	
+	/**
+	 * If this flag is on, no indentation is performed and no line breaks are written to output file.
+	 * This means that the data is written to output stream as is.
+	 *
+	 * This flag is off by default.
+	 */
+	const unsigned int format_raw		= 0x08;
+	
+	/**
+	 * This is the default set of formatting flags. It includes indenting nodes depending on their
+	 * depth in DOM tree and considering input data to be UTF-8.
+	 */
+	const unsigned int format_default	= format_indent | format_utf8;
+		
+	// Forward declarations
+	struct xml_attribute_struct;
+	struct xml_node_struct;
+
+	class xml_allocator;
+
+	class xml_node_iterator;
+	class xml_attribute_iterator;
+
+	class xml_tree_walker;
+	
+	class xml_node;
+
+	#ifndef PUGIXML_NO_XPATH
+	class xpath_node;
+	class xpath_node_set;
+	class xpath_ast_node;
+	class xpath_allocator;
+	
+	/**
+	 * A class that holds compiled XPath query and allows to evaluate query result
+	 */
+	class xpath_query
+	{
+	private:
+		// Noncopyable semantics
+		xpath_query(const xpath_query&);
+		xpath_query& operator=(const xpath_query&);
+
+		xpath_allocator* m_alloc;
+		xpath_ast_node* m_root;
+
+		void compile(const char* query);
+
+	public:
+		/**
+		 * Ctor from string with XPath expression.
+		 * Throws xpath_exception on compilation error, std::bad_alloc on out of memory error.
+		 *
+		 * \param query - string with XPath expression
+		 */
+		explicit xpath_query(const char* query);
+
+		/**
+		 * Dtor
+		 */
+		~xpath_query();
+		
+		/**
+		 * Evaluate expression as boolean value for the context node \a n.
+		 * If expression does not directly evaluate to boolean, the expression result is converted
+		 * as through boolean() XPath function call.
+		 * Throws std::bad_alloc on out of memory error.
+		 *
+		 * \param n - context node
+		 * \return evaluation result
+		 */
+		bool evaluate_boolean(const xml_node& n);
+		
+		/**
+		 * Evaluate expression as double value for the context node \a n.
+		 * If expression does not directly evaluate to double, the expression result is converted
+		 * as through number() XPath function call.
+		 * Throws std::bad_alloc on out of memory error.
+		 *
+		 * \param n - context node
+		 * \return evaluation result
+		 */
+		double evaluate_number(const xml_node& n);
+		
+		/**
+		 * Evaluate expression as string value for the context node \a n.
+		 * If expression does not directly evaluate to string, the expression result is converted
+		 * as through string() XPath function call.
+		 * Throws std::bad_alloc on out of memory error.
+		 *
+		 * \param n - context node
+		 * \return evaluation result
+		 */
+		std::string evaluate_string(const xml_node& n);
+		
+		/**
+		 * Evaluate expression as node set for the context node \a n.
+		 * If expression does not directly evaluate to node set, function returns empty node set.
+		 * Throws std::bad_alloc on out of memory error.
+		 *
+		 * \param n - context node
+		 * \return evaluation result
+		 */
+		xpath_node_set evaluate_node_set(const xml_node& n);
+	};
+	#endif
+	
+	/**
+	 * A light-weight wrapper for manipulating attributes in DOM tree.
+	 * Note: xml_attribute does not allocate any memory for the attribute it wraps; it only wraps a
+	 * pointer to existing attribute.
+	 */
+	class xml_attribute
+	{
+		friend class xml_attribute_iterator;
+		friend class xml_node;
+
+	private:
+		xml_attribute_struct* _attr;
+	
+    	/// \internal Safe bool type
+    	typedef xml_attribute_struct* xml_attribute::*unspecified_bool_type;
+
+		/// \internal Initializing ctor
+		explicit xml_attribute(xml_attribute_struct* attr);
+
+	public:
+		/**
+		 * Default ctor. Constructs an empty attribute.
+		 */
+		xml_attribute();
+		
+	public:
+    	/**
+    	 * Safe bool conversion.
+    	 * Allows xml_node to be used in a context where boolean variable is expected, such as 'if (node)'.
+    	 */
+    	operator unspecified_bool_type() const;
+
+    	// Borland C++ workaround
+    	bool operator!() const;
+
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator==(const xml_attribute& r) const;
+		
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator!=(const xml_attribute& r) const;
+		
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator<(const xml_attribute& r) const;
+		
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator>(const xml_attribute& r) const;
+		
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator<=(const xml_attribute& r) const;
+		
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator>=(const xml_attribute& r) const;
+
+	public:
+    	/**
+    	 * Get next attribute in attribute list of node that contains the attribute.
+    	 *
+    	 * \return next attribute, if any; empty attribute otherwise
+    	 */
+    	xml_attribute next_attribute() const;
+
+    	/**
+    	 * Get previous attribute in attribute list of node that contains the attribute.
+    	 *
+    	 * \return previous attribute, if any; empty attribute otherwise
+    	 */
+    	xml_attribute previous_attribute() const;
+
+		/**
+		 * Cast attribute value as int.
+		 *
+		 * \return attribute value as int, or 0 if conversion did not succeed or attribute is empty
+		 */
+		int as_int() const;
+
+		/**
+		 * Cast attribute value as double.
+		 *
+		 * \return attribute value as double, or 0.0 if conversion did not succeed or attribute is empty
+		 */
+		double as_double() const;
+	
+		/**
+		 * Cast attribute value as float.
+		 *
+		 * \return attribute value as float, or 0.0f if conversion did not succeed or attribute is empty
+		 */
+		float as_float() const;
+
+		/**
+		 * Cast attribute value as bool. Returns true for attributes with values that start with '1',
+		 * 't', 'T', 'y', 'Y', returns false for other attributes.
+		 *
+		 * \return attribute value as bool, or false if conversion did not succeed or attribute is empty
+		 */
+		bool as_bool() const;
+
+		/// \internal Document order or 0 if not set
+		unsigned int document_order() const;
+
+	public:
+		/**
+         * Set attribute value to \a rhs.
+         *
+         * \param rhs - new attribute value
+         * \return self
+         */
+		xml_attribute& operator=(const char* rhs);
+	
+		/**
+         * Set attribute value to \a rhs.
+         *
+         * \param rhs - new attribute value
+         * \return self
+         */
+		xml_attribute& operator=(int rhs);
+	
+		/**
+         * Set attribute value to \a rhs.
+         *
+         * \param rhs - new attribute value
+         * \return self
+         */
+		xml_attribute& operator=(double rhs);
+		
+		/**
+         * Set attribute value to either 'true' or 'false' (depends on whether \a rhs is true or false).
+         *
+         * \param rhs - new attribute value
+         * \return self
+         */
+		xml_attribute& operator=(bool rhs);
+
+		/**
+		 * Set attribute name to \a rhs.
+		 *
+		 * \param rhs - new attribute name
+		 * \return success flag (call fails if attribute is empty or there is not enough memory)
+		 */
+		bool set_name(const char* rhs);
+		
+		/**
+		 * Set attribute value to \a rhs.
+		 *
+		 * \param rhs - new attribute value
+		 * \return success flag (call fails if attribute is empty or there is not enough memory)
+		 */
+		bool set_value(const char* rhs);
+
+	public:
+		/**
+		 * Check if attribute is empty.
+		 *
+		 * \return true if attribute is empty, false otherwise
+		 */
+		bool empty() const;
+
+	public:
+		/**
+		 * Get attribute name.
+		 *
+		 * \return attribute name, or "" if attribute is empty
+		 */
+		const char* name() const;
+
+		/**
+		 * Get attribute value.
+		 *
+		 * \return attribute value, or "" if attribute is empty
+		 */
+		const char* value() const;
+	};
+
+#ifdef __BORLANDC__
+	// Borland C++ workaround
+	bool operator&&(const xml_attribute& lhs, bool rhs);
+	bool operator||(const xml_attribute& lhs, bool rhs);
+#endif
+
+	/**
+	 * A light-weight wrapper for manipulating nodes in DOM tree.
+	 * Note: xml_node does not allocate any memory for the node it wraps; it only wraps a pointer to
+	 * existing node.
+	 */
+	class xml_node
+	{
+		friend class xml_node_iterator;
+
+	protected:
+		xml_node_struct* _root;
+
+    	/// \internal Safe bool type
+    	typedef xml_node_struct* xml_node::*unspecified_bool_type;
+
+		/// \internal Initializing ctor
+		explicit xml_node(xml_node_struct* p);
+
+		/// \internal Precompute document order (valid only for document node)
+		void precompute_document_order_impl();
+
+		/// \internal Get allocator
+		xml_allocator& get_allocator() const;
+
+	public:
+		/**
+		 * Default ctor. Constructs an empty node.
+		 */
+		xml_node();
+
+	public:
+    	/**
+    	 * Safe bool conversion.
+    	 * Allows xml_node to be used in a context where boolean variable is expected, such as 'if (node)'.
+    	 */
+		operator unspecified_bool_type() const;
+
+		// Borland C++ workaround
+		bool operator!() const;
+	
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator==(const xml_node& r) const;
+
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator!=(const xml_node& r) const;
+
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator<(const xml_node& r) const;
+
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator>(const xml_node& r) const;
+
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator<=(const xml_node& r) const;
+		
+		/**
+		 * Compare wrapped pointer to the attribute to the pointer that is wrapped by \a r.
+		 *
+		 * \param r - value to compare to
+		 * \return comparison result
+		 */
+		bool operator>=(const xml_node& r) const;
+
+	public:
+		/**
+		 * Node iterator type (for child nodes).
+		 * \see xml_node_iterator
+		 */
+		typedef xml_node_iterator iterator;
+
+		/**
+		 * Node iterator type (for child nodes).
+		 * \see xml_attribute_iterator
+		 */
+		typedef xml_attribute_iterator attribute_iterator;
+
+		/**
+		 * Access the begin iterator for this node's collection of child nodes.
+		 *
+		 * \return iterator that points to the first child node, or past-the-end iterator if node is empty or has no children
+		 */
+		iterator begin() const;
+	
+		/**
+		 * Access the end iterator for this node's collection of child nodes.
+		 *
+		 * \return past-the-end iterator for child list
+		 */
+		iterator end() const;
+	
+		/**
+		 * Access the begin iterator for this node's collection of attributes.
+		 *
+		 * \return iterator that points to the first attribute, or past-the-end iterator if node is empty or has no attributes
+		 */
+		attribute_iterator attributes_begin() const;
+	
+		/**
+		 * Access the end iterator for this node's collection of attributes.
+		 *
+		 * \return past-the-end iterator for attribute list
+		 */
+		attribute_iterator attributes_end() const;
+
+	public:
+		/**
+		 * Check if node is empty.
+		 *
+		 * \return true if node is empty, false otherwise
+		 */
+		bool empty() const;
+
+	public:
+		/**
+		 * Get node type
+		 *
+		 * \return node type; node_null for empty nodes
+		 */
+		xml_node_type type() const;
+
+		/**
+		 * Get node name (element name for element nodes, PI target for PI)
+		 *
+		 * \return node name, if any; "" otherwise
+		 */
+		const char* name() const;
+
+		/**
+		 * Get node value (comment/PI/PCDATA/CDATA contents, depending on node type)
+		 *
+		 * \return node value, if any; "" otherwise
+		 */
+		const char* value() const;
+	
+		/**
+		 * Get child with the specified name
+		 *
+		 * \param name - child name
+		 * \return child with the specified name, if any; empty node otherwise
+		 */
+		xml_node child(const char* name) const;
+
+		/**
+		 * Get child with the name that matches specified pattern
+		 *
+		 * \param name - child name pattern
+		 * \return child with the name that matches pattern, if any; empty node otherwise
+		 */
+		xml_node child_w(const char* name) const;
+
+		/**
+		 * Get attribute with the specified name
+		 *
+		 * \param name - attribute name
+		 * \return attribute with the specified name, if any; empty attribute otherwise
+		 */
+		xml_attribute attribute(const char* name) const;
+
+		/**
+		 * Get attribute with the name that matches specified pattern
+		 *
+		 * \param name - attribute name pattern
+		 * \return attribute with the name that matches pattern, if any; empty attribute otherwise
+		 */
+		xml_attribute attribute_w(const char* name) const;
+
+		/**
+		 * Get first of following sibling nodes with the specified name
+		 *
+		 * \param name - sibling name
+		 * \return node with the specified name, if any; empty node otherwise
+		 */
+		xml_node next_sibling(const char* name) const;
+
+		/**
+		 * Get first of the following sibling nodes with the name that matches specified pattern
+		 *
+		 * \param name - sibling name pattern
+		 * \return node with the name that matches pattern, if any; empty node otherwise
+		 */
+		xml_node next_sibling_w(const char* name) const;
+
+		/**
+		 * Get following sibling
+		 *
+		 * \return following sibling node, if any; empty node otherwise
+		 */
+		xml_node next_sibling() const;
+
+		/**
+		 * Get first of preceding sibling nodes with the specified name
+		 *
+		 * \param name - sibling name
+		 * \return node with the specified name, if any; empty node otherwise
+		 */
+		xml_node previous_sibling(const char* name) const;
+
+		/**
+		 * Get first of the preceding sibling nodes with the name that matches specified pattern
+		 *
+		 * \param name - sibling name pattern
+		 * \return node with the name that matches pattern, if any; empty node otherwise
+		 */
+		xml_node previous_sibling_w(const char* name) const;
+
+		/**
+		 * Get preceding sibling
+		 *
+		 * \return preceding sibling node, if any; empty node otherwise
+		 */
+		xml_node previous_sibling() const;
+
+		/**
+		 * Get parent node
+		 *
+		 * \return parent node if any; empty node otherwise
+		 */
+		xml_node parent() const;
+
+		/**
+		 * Get root of DOM tree this node belongs to.
+		 *
+		 * \return tree root
+		 */
+		xml_node root() const;
+
+		/**
+		 * Get child value of current node; that is, value of the first child node of type PCDATA/CDATA
+		 *
+		 * \return child value of current node, if any; "" otherwise
+		 */
+		const char* child_value() const;
+
+		/**
+		 * Get child value of child with specified name. \see child_value
+		 * node.child_value(name) is equivalent to node.child(name).child_value()
+		 *
+		 * \param name - child name
+		 * \return child value of specified child node, if any; "" otherwise
+		 */
+		const char* child_value(const char* name) const;
+
+		/**
+		 * Get child value of child with name that matches the specified pattern. \see child_value
+		 * node.child_value_w(name) is equivalent to node.child_w(name).child_value()
+		 *
+		 * \param name - child name pattern
+		 * \return child value of specified child node, if any; "" otherwise
+		 */
+		const char* child_value_w(const char* name) const;
+
+	public:	
+		/**
+		 * Set node name to \a rhs (for PI/element nodes). \see name
+		 *
+		 * \param rhs - new node name
+		 * \return success flag (call fails if node is of the wrong type or there is not enough memory)
+		 */
+		bool set_name(const char* rhs);
+		
+		/**
+		 * Set node value to \a rhs (for PI/PCDATA/CDATA/comment nodes). \see value
+		 *
+		 * \param rhs - new node value
+		 * \return success flag (call fails if node is of the wrong type or there is not enough memory)
+		 */
+		bool set_value(const char* rhs);
+
+		/**
+		 * Add attribute with specified name (for element nodes)
+		 *
+		 * \param name - attribute name
+		 * \return added attribute, or empty attribute if there was an error (wrong node type)
+		 */
+		xml_attribute append_attribute(const char* name);
+
+		/**
+		 * Insert attribute with specified name after \a attr (for element nodes)
+		 *
+		 * \param name - attribute name
+		 * \param attr - attribute to insert a new one after
+		 * \return inserted attribute, or empty attribute if there was an error (wrong node type, or attr does not belong to node)
+		 */
+		xml_attribute insert_attribute_after(const char* name, const xml_attribute& attr);
+
+		/**
+		 * Insert attribute with specified name before \a attr (for element nodes)
+		 *
+		 * \param name - attribute name
+		 * \param attr - attribute to insert a new one before
+		 * \return inserted attribute, or empty attribute if there was an error (wrong node type, or attr does not belong to node)
+		 */
+		xml_attribute insert_attribute_before(const char* name, const xml_attribute& attr);
+
+		/**
+		 * Add child node with specified type (for element nodes)
+		 *
+		 * \param type - node type
+		 * \return added node, or empty node if there was an error (wrong node type)
+		 */
+		xml_node append_child(xml_node_type type = node_element);
+
+		/**
+		 * Insert child node with specified type after \a node (for element nodes)
+		 *
+		 * \param type - node type
+		 * \param node - node to insert a new one after
+		 * \return inserted node, or empty node if there was an error (wrong node type, or \a node is not a child of this node)
+		 */
+		xml_node insert_child_after(xml_node_type type, const xml_node& node);
+
+		/**
+		 * Insert child node with specified type before \a node (for element nodes)
+		 *
+		 * \param type - node type
+		 * \param node - node to insert a new one before
+		 * \return inserted node, or empty node if there was an error (wrong node type, or \a node is not a child of this node)
+		 */
+		xml_node insert_child_before(xml_node_type type, const xml_node& node);
+
+		/**
+		 * Remove specified attribute
+		 *
+		 * \param a - attribute to be removed
+		 */
+		void remove_attribute(const xml_attribute& a);
+
+		/**
+		 * Remove attribute with the specified name, if any
+		 *
+		 * \param name - attribute name
+		 */
+		void remove_attribute(const char* name);
+
+		/**
+		 * Remove specified child
+		 *
+		 * \param n - child node to be removed
+		 */
+		void remove_child(const xml_node& n);
+
+		/**
+		 * Remove child with the specified name, if any
+		 *
+		 * \param name - child name
+		 */
+		void remove_child(const char* name);
+
+	public:
+		/**
+		 * Get first attribute
+		 *
+		 * \return first attribute, if any; empty attribute otherwise
+		 */
+		xml_attribute first_attribute() const;
+
+		/**
+		 * Get last attribute
+		 *
+		 * \return last attribute, if any; empty attribute otherwise
+		 */
+        xml_attribute last_attribute() const;
+
+		/**
+		 * Get all elements from subtree with given name
+		 *
+		 * \param name - node name
+		 * \param it - output iterator (for example, std::back_insert_iterator (result of std::back_inserter))
+		 */
+		template <typename OutputIterator> void all_elements_by_name(const char* name, OutputIterator it) const;
+
+		/**
+		 * Get all elements from subtree with name that matches given pattern
+		 *
+		 * \param name - node name pattern
+		 * \param it - output iterator (for example, std::back_insert_iterator (result of std::back_inserter))
+		 */
+		template <typename OutputIterator> void all_elements_by_name_w(const char* name, OutputIterator it) const;
+
+		/**
+		 * Get first child
+		 *
+		 * \return first child, if any; empty node otherwise
+		 */
+		xml_node first_child() const;
+
+		/**
+		 * Get last child
+		 *
+		 * \return last child, if any; empty node otherwise
+		 */
+        xml_node last_child() const;
+		
+		/**
+		 * Find attribute using predicate
+		 *
+		 * \param pred - predicate, that takes xml_attribute and returns bool
+		 * \return first attribute for which predicate returned true, or empty attribute
+		 */
+		template <typename Predicate> xml_attribute find_attribute(Predicate pred) const;
+
+		/**
+		 * Find child node using predicate
+		 *
+		 * \param pred - predicate, that takes xml_node and returns bool
+		 * \return first child node for which predicate returned true, or empty node
+		 */
+		template <typename Predicate> xml_node find_child(Predicate pred) const;
+
+		/**
+		 * Find node from subtree using predicate
+		 *
+		 * \param pred - predicate, that takes xml_node and returns bool
+		 * \return first node from subtree for which predicate returned true, or empty node
+		 */
+		template <typename Predicate> xml_node find_node(Predicate pred) const;
+
+#ifndef PUGIXML_NO_STL
+		/**
+		 * Get the absolute node path from root as a text string.
+		 *
+		 * \param delimiter - delimiter character to insert between element names
+		 * \return path string (e.g. '/bookstore/book/author').
+		 */
+		std::string path(char delimiter = '/') const;
+#endif
+
+		/**
+		 * Search for a node by path.
+		 * \param path - path string; e.g. './foo/bar' (relative to node), '/foo/bar' (relative 
+		 * to root), '../foo/bar'.
+		 * \param delimiter - delimiter character to use while tokenizing path
+		 * \return matching node, if any; empty node otherwise
+		 */
+		xml_node first_element_by_path(const char* path, char delimiter = '/') const;
+
+		/**
+		 * Recursively traverse subtree with xml_tree_walker
+		 * \see xml_tree_walker::begin
+		 * \see xml_tree_walker::for_each
+		 * \see xml_tree_walker::end
+		 *
+		 * \param walker - tree walker to traverse subtree with
+		 * \return traversal result
+		 */
+		bool traverse(xml_tree_walker& walker);
+	
+	#ifndef PUGIXML_NO_XPATH
+		/**
+		 * Select single node by evaluating XPath query
+		 * 
+		 * \param query - query string
+		 * \return first node from the resulting node set by document order, or empty node if none found
+		 */
+		xpath_node select_single_node(const char* query) const;
+
+		/**
+		 * Select single node by evaluating XPath query
+		 *
+		 * \param query - compiled query
+		 * \return first node from the resulting node set by document order, or empty node if none found
+		 */
+		xpath_node select_single_node(xpath_query& query) const;
+
+		/**
+		 * Select node set by evaluating XPath query
+		 *
+		 * \param query - query string
+		 * \return resulting node set
+		 */
+		xpath_node_set select_nodes(const char* query) const;
+
+		/**
+		 * Select node set by evaluating XPath query
+		 *
+		 * \param query - compiled query
+		 * \return resulting node set
+		 */
+		xpath_node_set select_nodes(xpath_query& query) const;
+	#endif
+		
+		/// \internal Document order or 0 if not set
+		unsigned int document_order() const;
+
+	#ifndef PUGIXML_NO_STL
+		/**
+		 * Print subtree to stream
+		 *
+		 * \param os - output stream
+		 * \param indent - indentation string
+		 * \param flags - formatting flags
+		 * \param depth - starting depth (used for indentation)
+		 */
+		void print(std::ostream& os, const char* indent = "\t", unsigned int flags = format_default, unsigned int depth = 0);
+	#endif
+	};
+
+#ifdef __BORLANDC__
+	// Borland C++ workaround
+	bool operator&&(const xml_node& lhs, bool rhs);
+	bool operator||(const xml_node& lhs, bool rhs);
+#endif
+
+	/**
+	 * Child node iterator.
+	 * It's a bidirectional iterator with value type 'xml_node'.
+	 */
+	class xml_node_iterator
+#ifndef PUGIXML_NO_STL
+	: public std::iterator<std::bidirectional_iterator_tag, xml_node>
+#endif
+	{
+		friend class xml_node;
+
+	private:
+		xml_node _prev;
+		xml_node _wrap;
+
+		/// \internal Initializing ctor
+		explicit xml_node_iterator(xml_node_struct* ref);
+
+	public:
+		/**
+		 * Default ctor
+		 */
+		xml_node_iterator();
+
+		/**
+		 * Initializing ctor
+		 *
+		 * \param node - node that iterator will point at
+		 */
+		xml_node_iterator(const xml_node& node);
+
+		/**
+		 * Initializing ctor (for past-the-end)
+		 *
+		 * \param ref - should be 0
+		 * \param prev - previous node
+		 */
+		xml_node_iterator(xml_node_struct* ref, xml_node_struct* prev);
+
+		/**
+		 * Check if this iterator is equal to \a rhs
+		 *
+		 * \param rhs - other iterator
+		 * \return comparison result
+		 */
+		bool operator==(const xml_node_iterator& rhs) const;
+		
+		/**
+		 * Check if this iterator is not equal to \a rhs
+		 *
+		 * \param rhs - other iterator
+		 * \return comparison result
+		 */
+		bool operator!=(const xml_node_iterator& rhs) const;
+
+		/**
+		 * Dereferencing operator
+		 *
+		 * \return reference to the node iterator points at
+		 */
+		xml_node& operator*();
+
+		/**
+		 * Member access operator
+		 *
+		 * \return poitner to the node iterator points at
+		 */
+		xml_node* operator->();
+
+		/**
+		 * Pre-increment operator
+		 *
+		 * \return self
+		 */
+		const xml_node_iterator& operator++();
+
+		/**
+		 * Post-increment operator
+		 *
+		 * \return old value
+		 */
+		xml_node_iterator operator++(int);
+		
+		/**
+		 * Pre-decrement operator
+		 *
+		 * \return self
+		 */
+		const xml_node_iterator& operator--();
+		
+		/**
+		 * Post-decrement operator
+		 *
+		 * \return old value
+		 */
+		xml_node_iterator operator--(int);
+	};
+
+	/**
+	 * Attribute iterator.
+	 * It's a bidirectional iterator with value type 'xml_attribute'.
+	 */
+	class xml_attribute_iterator
+#ifndef PUGIXML_NO_STL
+	: public std::iterator<std::bidirectional_iterator_tag, xml_attribute>
+#endif
+	{
+		friend class xml_node;
+
+	private:
+		xml_attribute _prev;
+		xml_attribute _wrap;
+
+		/// \internal Initializing ctor
+		explicit xml_attribute_iterator(xml_attribute_struct* ref);
+
+	public:
+		/**
+		 * Default ctor
+		 */
+		xml_attribute_iterator();
+
+		/**
+		 * Initializing ctor
+		 *
+		 * \param node - node that iterator will point at
+		 */
+		xml_attribute_iterator(const xml_attribute& node);
+
+		/**
+		 * Initializing ctor (for past-the-end)
+		 *
+		 * \param ref - should be 0
+		 * \param prev - previous node
+		 */
+		xml_attribute_iterator(xml_attribute_struct* ref, xml_attribute_struct* prev);
+
+		/**
+		 * Check if this iterator is equal to \a rhs
+		 *
+		 * \param rhs - other iterator
+		 * \return comparison result
+		 */
+		bool operator==(const xml_attribute_iterator& rhs) const;
+		
+		/**
+		 * Check if this iterator is not equal to \a rhs
+		 *
+		 * \param rhs - other iterator
+		 * \return comparison result
+		 */
+		bool operator!=(const xml_attribute_iterator& rhs) const;
+
+		/**
+		 * Dereferencing operator
+		 *
+		 * \return reference to the node iterator points at
+		 */
+		xml_attribute& operator*();
+
+		/**
+		 * Member access operator
+		 *
+		 * \return poitner to the node iterator points at
+		 */
+		xml_attribute* operator->();
+
+		/**
+		 * Pre-increment operator
+		 *
+		 * \return self
+		 */
+		const xml_attribute_iterator& operator++();
+
+		/**
+		 * Post-increment operator
+		 *
+		 * \return old value
+		 */
+		xml_attribute_iterator operator++(int);
+		
+		/**
+		 * Pre-decrement operator
+		 *
+		 * \return self
+		 */
+		const xml_attribute_iterator& operator--();
+		
+		/**
+		 * Post-decrement operator
+		 *
+		 * \return old value
+		 */
+		xml_attribute_iterator operator--(int);
+	};
+
+	/**
+	 * Abstract tree walker class
+	 * \see xml_node::traverse
+	 */
+	class xml_tree_walker
+	{
+		friend class xml_node;
+
+	private:
+		int _depth;
+	
+	protected:
+		/**
+		 * Get node depth
+		 * 
+		 * \return node depth
+		 */
+		int depth() const;
+	
+	public:
+		/**
+		 * Default ctor
+		 */
+		xml_tree_walker();
+
+		/**
+		 * Virtual dtor
+		 */
+		virtual ~xml_tree_walker();
+
+	public:
+		/**
+		 * Callback that is called when traversal of node begins.
+		 *
+		 * \return returning false will abort the traversal
+		 */
+		virtual bool begin(xml_node&);
+
+		/**
+		 * Callback that is called for each node traversed
+		 *
+		 * \return returning false will abort the traversal
+		 */
+		virtual bool for_each(xml_node&) = 0;
+
+		/**
+		 * Callback that is called when traversal of node ends.
+		 *
+		 * \return returning false will abort the traversal
+		 */
+		virtual bool end(xml_node&);
+	};
+
+	/// \internal Memory block
+	struct xml_memory_block
+	{
+		xml_memory_block();
+
+		xml_memory_block* next;
+		size_t size;
+
+		char data[memory_block_size];
+	};
+
+	/**
+	 * Struct used to distinguish parsing with ownership transfer from parsing without it.
+	 * \see xml_document::parse
+	 */
+	struct transfer_ownership_tag {};
+
+	/**
+	 * Document class (DOM tree root).
+	 * This class has noncopyable semantics (private copy ctor/assignment operator).
+	 */
+	class xml_document: public xml_node
+	{
+	private:
+		char*				_buffer;
+
+		xml_memory_block	_memory;
+		
+		xml_document(const xml_document&);
+		const xml_document& operator=(const xml_document&);
+
+		void create();
+		void free();
+
+	public:
+		/**
+		 * Default ctor, makes empty document
+		 */
+		xml_document();
+
+		/**
+		 * Dtor
+		 */
+		~xml_document();
+
+	public:
+#ifndef PUGIXML_NO_STL
+		/**
+		 * Load document from stream.
+		 *
+		 * \param stream - stream with xml data
+		 * \param options - parsing options
+		 * \return success flag
+		 */
+		bool load(std::istream& stream, unsigned int options = parse_default);
+#endif
+
+		/**
+		 * Load document from string.
+		 *
+		 * \param contents - input string
+		 * \param options - parsing options
+		 * \return success flag
+		 */
+		bool load(const char* contents, unsigned int options = parse_default);
+
+		/**
+		 * Load document from file
+		 *
+		 * \param name - file name
+		 * \param options - parsing options
+		 * \return success flag
+		 */
+		bool load_file(const char* name, unsigned int options = parse_default);
+
+		/**
+		 * Parse the given XML string in-situ.
+		 * The string is modified; you should ensure that string data will persist throughout the
+		 * document's lifetime. Although, document does not gain ownership over the string, so you
+		 * should free the memory occupied by it manually.
+		 *
+		 * \param xmlstr - readwrite string with xml data
+		 * \param options - parsing options
+		 * \return success flag
+		 */
+		bool parse(char* xmlstr, unsigned int options = parse_default);
+		
+		/**
+		 * Parse the given XML string in-situ (gains ownership).
+		 * The string is modified; document gains ownership over the string, so you don't have to worry
+		 * about it's lifetime.
+		 * Call example: doc.parse(transfer_ownership_tag(), string, options);
+		 *
+		 * \param xmlstr - readwrite string with xml data
+		 * \param options - parsing options
+		 * \return success flag
+		 */
+		bool parse(const transfer_ownership_tag&, char* xmlstr, unsigned int options = parse_default);
+		
+#ifndef PUGIXML_NO_STL
+		/**
+		 * Save XML to file
+		 *
+		 * \param name - file name
+		 * \param indent - indentation string
+		 * \param flags - formatting flags
+		 * \return success flag
+		 */
+		bool save_file(const char* name, const char* indent = "\t", unsigned int flags = format_default);
+#endif
+
+		/**
+		 * Compute document order for the whole tree
+		 * Sometimes this makes evaluation of XPath queries faster.
+		 */
+		void precompute_document_order();
+	};
+
+#ifndef PUGIXML_NO_XPATH
+	/**
+	 * XPath exception class.
+	 */
+	class xpath_exception: public std::exception
+	{
+	private:
+		const char* m_message;
+
+	public:
+		/**
+		 * Construct exception from static error string
+		 *
+		 * \param message - error string
+		 */
+		explicit xpath_exception(const char* message);
+
+		/**
+		 * Return error message
+		 *
+		 * \return error message
+		 */
+		virtual const char* what() const throw();
+	};
+	
+	/**
+	 * XPath node class.
+	 * 
+	 * XPath defines node to be either xml_node or xml_attribute in pugixml terminology, so xpath_node
+	 * is either xml_node or xml_attribute.
+	 */
+	class xpath_node
+	{
+	private:
+		xml_node m_node;
+		xml_attribute m_attribute;
+	
+    	/// \internal Safe bool type
+    	typedef xml_node xpath_node::*unspecified_bool_type;
+
+	public:
+		/**
+		 * Construct empty XPath node
+		 */
+		xpath_node();
+		
+		/**
+		 * Construct XPath node from XML node
+		 *
+		 * \param node - XML node
+		 */
+		xpath_node(const xml_node& node);
+
+		/**
+		 * Construct XPath node from XML attribute
+		 *
+		 * \param attribute - XML attribute
+		 * \param parent - attribute's parent node
+		 */
+		xpath_node(const xml_attribute& attribute, const xml_node& parent);
+
+		/**
+		 * Get XML node, if any
+		 *
+		 * \return contained XML node, empty node otherwise
+		 */
+		xml_node node() const;
+		
+		/**
+		 * Get XML attribute, if any
+		 *
+		 * \return contained XML attribute, if any, empty attribute otherwise
+		 */
+		xml_attribute attribute() const;
+		
+		/**
+		 * Get parent of contained XML attribute, if any
+		 *
+		 * \return parent of contained XML attribute, if any, empty node otherwise
+		 */
+		xml_node parent() const;
+
+    	/**
+    	 * Safe bool conversion.
+    	 * Allows xpath_node to be used in a context where boolean variable is expected, such as 'if (node)'.
+    	 */
+		operator unspecified_bool_type() const;
+		
+		/**
+		 * Compares two XPath nodes
+		 *
+		 * \param n - XPath node to compare to
+		 * \return comparison result
+		 */
+		bool operator==(const xpath_node& n) const;
+		
+		/**
+		 * Compares two XPath nodes
+		 *
+		 * \param n - XPath node to compare to
+		 * \return comparison result
+		 */
+		bool operator!=(const xpath_node& n) const;
+	};
+
+	/**
+	 * Not necessarily ordered constant collection of XPath nodes
+	 */
+	class xpath_node_set
+	{
+		friend class xpath_ast_node;
+		
+	public:
+		/// Collection type
+		enum type_t
+		{
+			type_unsorted,			///< Not ordered
+			type_sorted,			///< Sorted by document order (ascending)
+			type_sorted_reverse		///< Sorted by document order (descending)
+		};
+		
+		/// Constant iterator type
+		typedef const xpath_node* const_iterator;
+	
+	private:
+		type_t m_type;
+		
+		xpath_node m_storage;
+		
+		xpath_node* m_begin;
+		xpath_node* m_end;
+		xpath_node* m_eos;
+		
+		bool m_using_storage;
+		
+		typedef xpath_node* iterator;
+
+		iterator mut_begin();
+		iterator mut_end();
+		
+		void push_back(const xpath_node& n);
+		
+		template <typename Iterator> void append(Iterator begin, Iterator end);
+		
+		void truncate(iterator it);
+
+		void remove_duplicates();
+
+	public:
+		/**
+		 * Default ctor
+		 * Constructs empty set
+		 */
+		xpath_node_set();
+
+		/**
+         * Dtor
+         */
+		~xpath_node_set();
+		
+		/**
+		 * Copy ctor
+		 *
+		 * \param ns - set to copy
+		 */
+		xpath_node_set(const xpath_node_set& ns);
+
+		/**
+		 * Assignment operator
+		 *
+		 * \param ns - set to assign
+		 * \return self
+		 */
+		xpath_node_set& operator=(const xpath_node_set& ns);
+		
+		/**
+		 * Get collection type
+		 *
+		 * \return collection type
+		 */
+		type_t type() const;
+		
+		/**
+		 * Get collection size
+		 *
+		 * \return collection size
+		 */
+		size_t size() const;
+		
+		/**
+		 * Get begin constant iterator for collection
+		 *
+		 * \return begin constant iterator
+		 */
+		const_iterator begin() const;
+		
+		/**
+		 * Get end iterator for collection
+		 *
+		 * \return end iterator
+		 */
+		const_iterator end() const;
+		
+		/**
+		 * Sort the collection in ascending/descending order by document order
+		 *
+		 * \param reverse - whether to sort in ascending (false) or descending (true) order
+		 */
+		void sort(bool reverse = false);
+		
+		/**
+		 * Get first node in the collection by document order
+		 *
+		 * \return first node by document order
+		 */
+		xpath_node first() const;
+		
+		/**
+		 * Return true if collection is empty
+		 *
+		 * \return true if collection is empty, false otherwise
+		 */
+		bool empty() const;
+	};
+#endif
+
+#ifndef PUGIXML_NO_STL
+	/**
+	 * Convert utf16 to utf8
+	 *
+	 * \param str - input UTF16 string
+	 * \return output UTF8 string
+	 */
+	std::string as_utf8(const wchar_t* str);
+	
+	/**
+	 * Convert utf8 to utf16
+	 *
+	 * \param str - input UTF8 string
+	 * \return output UTF16 string
+	 */
+	std::wstring as_utf16(const char* str);
+#endif
+}
+
+// Inline implementation
+
+namespace pugi
+{
+	namespace impl
+	{
+		int strcmpwild(const char*, const char*);
+	}
+
+	template <typename OutputIterator> void xml_node::all_elements_by_name(const char* name, OutputIterator it) const
+	{
+		if (empty()) return;
+		
+		for (xml_node node = first_child(); node; node = node.next_sibling())
+		{
+			if (node.type() == node_element)
+			{
+				if (!strcmp(name, node.name()))
+				{
+					*it = node;
+					++it;
+				}
+			
+				if (node.first_child()) node.all_elements_by_name(name, it);
+			}
+		}
+	}
+
+	template <typename OutputIterator> void xml_node::all_elements_by_name_w(const char* name, OutputIterator it) const
+	{
+		if (empty()) return;
+		
+		for (xml_node node = first_child(); node; node = node.next_sibling())
+		{
+			if (node.type() == node_element)
+			{
+				if (!impl::strcmpwild(name, node.name()))
+				{
+					*it = node;
+					++it;
+				}
+					
+				if (node.first_child()) node.all_elements_by_name_w(name, it);
+			}
+		}
+	}
+	
+	template <typename Predicate> inline xml_attribute xml_node::find_attribute(Predicate pred) const
+	{
+		if (!empty())
+			for (xml_attribute attrib = first_attribute(); attrib; attrib = attrib.next_attribute())
+				if (pred(attrib))
+					return attrib;
+		
+		return xml_attribute();
+	}
+
+	template <typename Predicate> inline xml_node xml_node::find_child(Predicate pred) const
+	{
+		if (!empty())
+			for (xml_node node = first_child(); node; node = node.next_sibling())
+				if (pred(node))
+					return node;
+
+		return xml_node();
+	}
+
+	template <typename Predicate> inline xml_node xml_node::find_node(Predicate pred) const
+	{
+		if (!empty())
+			for (xml_node node = first_child(); node; node = node.next_sibling())
+			{
+				if (pred(node))
+					return node;
+				
+				if (node.first_child())
+				{
+					xml_node found = node.find_element(pred);
+					if (found) return found;
+				}
+			}
+
+		return xml_node();
+	}
+}
+
+#endif