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authorarseny.kapoulkine <arseny.kapoulkine@99668b35-9821-0410-8761-19e4c4f06640>2009-01-25 20:40:10 +0000
committerarseny.kapoulkine <arseny.kapoulkine@99668b35-9821-0410-8761-19e4c4f06640>2009-01-25 20:40:10 +0000
commit600c3814e991c12c2526a670eb9968f4c866d5d8 (patch)
treebee2907f3c363cda7ebc363787441cb54253cda9 /src/pugixml.hpp
parent0949bd80b644666e23aa91125ebad16e4e3b20de (diff)
Added proper parse errors with description, parsed offsets and stuff
git-svn-id: http://pugixml.googlecode.com/svn/trunk@111 99668b35-9821-0410-8761-19e4c4f06640
Diffstat (limited to 'src/pugixml.hpp')
-rw-r--r--src/pugixml.hpp3992
1 files changed, 2017 insertions, 1975 deletions
diff --git a/src/pugixml.hpp b/src/pugixml.hpp
index ae555bf..f808a77 100644
--- a/src/pugixml.hpp
+++ b/src/pugixml.hpp
@@ -1,1975 +1,2017 @@
-///////////////////////////////////////////////////////////////////////////////
-//
-// Pug Improved XML Parser - Version 0.4
-// --------------------------------------------------------
-// Copyright (C) 2006-2009, 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 <iosfwd>
-#endif
-
-// No XPath without STL
-#ifdef PUGIXML_NO_STL
-# ifndef PUGIXML_NO_XPATH
-# define PUGIXML_NO_XPATH
-# endif
-#endif
-
-#include <stddef.h>
-
-/// 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. '<?...?>'
- node_declaration ///< E.g. '<?xml ...?>'
- };
-
- // 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 flag determines if XML document declaration (this node has the form of <?xml ... ?> in XML)
- * are to be put in DOM tree. If this flag is off, it is not put in the tree, but is still parsed
- * and checked for correctness.
- *
- * The corresponding node in DOM tree will have type node_declaration, name "xml" and attributes,
- * if any.
- *
- * This flag is off by default.
- */
- const unsigned int parse_declaration = 0x0100;
-
- /**
- * 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 if UTF-8 BOM is to be written to output stream.
- *
- * This flag is off by default.
- */
- const unsigned int format_write_bom_utf8 = 0x02;
-
- /**
- * 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 = 0x04;
-
- /**
- * If this flag is on, no default XML declaration is written to output file.
- * This means that there will be no XML declaration in output stream unless there was one in XML document
- * (i.e. if it was parsed with parse_declaration flag).
- *
- * This flag is off by default.
- */
- const unsigned int format_no_declaration = 0x08;
-
- /**
- * This is the default set of formatting flags. It includes indenting nodes depending on their
- * depth in DOM tree.
- */
- const unsigned int format_default = format_indent;
-
- // 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
-
- /**
- * Abstract writer class
- * \see xml_node::print
- */
- class xml_writer
- {
- public:
- /**
- * Virtual dtor
- */
- virtual ~xml_writer() {}
-
- /**
- * Write memory chunk into stream/file/whatever
- *
- * \param data - data pointer
- * \param size - data size
- */
- virtual void write(const void* data, size_t size) = 0;
- };
-
- /** xml_writer implementation for FILE*
- * \see xml_writer
- */
- class xml_writer_file: public xml_writer
- {
- public:
- /**
- * Construct writer instance
- *
- * \param file - this is FILE* object, void* is used to avoid header dependencies on stdio
- */
- xml_writer_file(void* file);
-
- virtual void write(const void* data, size_t size);
-
- private:
- void* file;
- };
-
- #ifndef PUGIXML_NO_STL
- /** xml_writer implementation for streams
- * \see xml_writer
- */
- class xml_writer_stream: public xml_writer
- {
- public:
- /**
- * Construct writer instance
- *
- * \param stream - output stream object
- */
- xml_writer_stream(std::ostream& stream);
-
- virtual void write(const void* data, size_t size);
-
- private:
- std::ostream* stream;
- };
- #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
-#ifdef __MWERKS__
- typedef bool (xml_attribute::*unspecified_bool_type)() const;
-#else
- typedef xml_attribute_struct* xml_attribute::*unspecified_bool_type;
-#endif
-
- /// \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 unsigned int.
- *
- * \return attribute value as unsigned int, or 0 if conversion did not succeed or attribute is empty
- * \note values out of non-negative int range (usually [0, 2^31-1]) get clamped to range boundaries
- */
- unsigned int as_uint() 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=(unsigned 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
-#ifdef __MWERKS__
- typedef bool (xml_node::*unspecified_bool_type)() const;
-#else
- typedef xml_node_struct* xml_node::*unspecified_bool_type;
-#endif
-
- /// \internal Initializing ctor
- explicit xml_node(xml_node_struct* p);
-
- /// \internal Precompute document order (valid only for document node)
- void precompute_document_order_impl(unsigned int mask);
-
- /// \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 a copy of the specified attribute (for element nodes)
- *
- * \param proto - attribute prototype which is to be copied
- * \return inserted attribute, or empty attribute if there was an error (wrong node type)
- */
- xml_attribute append_copy(const xml_attribute& proto);
-
- /**
- * Insert a copy of the specified attribute after \a attr (for element nodes)
- *
- * \param proto - attribute prototype which is to be copied
- * \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_copy_after(const xml_attribute& proto, const xml_attribute& attr);
-
- /**
- * Insert a copy of the specified attribute before \a attr (for element nodes)
- *
- * \param proto - attribute prototype which is to be copied
- * \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_copy_before(const xml_attribute& proto, 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);
-
- /**
- * Add a copy of the specified node as a child (for element nodes)
- *
- * \param proto - node prototype which is to be copied
- * \return inserted node, or empty node if there was an error (wrong node type)
- */
- xml_node append_copy(const xml_node& proto);
-
- /**
- * Insert a copy of the specified node after \a node (for element nodes)
- *
- * \param proto - node prototype which is to be copied
- * \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_copy_after(const xml_node& proto, const xml_node& node);
-
- /**
- * Insert a copy of the specified node before \a node (for element nodes)
- *
- * \param proto - node prototype which is to be copied
- * \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_copy_before(const xml_node& proto, 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;
-
- /**
- * Find child node with the specified name that has specified attribute
- *
- * \param name - child node name
- * \param attr_name - attribute name of child node
- * \param attr_value - attribute value of child node
- * \return first matching child node, or empty node
- */
- xml_node find_child_by_attribute(const char* name, const char* attr_name, const char* attr_value);
-
- /**
- * Find child node with the specified name that has specified attribute (use pattern matching for node name and attribute name/value)
- *
- * \param name - pattern for child node name
- * \param attr_name - pattern for attribute name of child node
- * \param attr_value - pattern for attribute value of child node
- * \return first matching child node, or empty node
- */
- xml_node find_child_by_attribute_w(const char* name, const char* attr_name, const char* attr_value);
-
- /**
- * Find child node that has specified attribute
- *
- * \param attr_name - attribute name of child node
- * \param attr_value - attribute value of child node
- * \return first matching child node, or empty node
- */
- xml_node find_child_by_attribute(const char* attr_name, const char* attr_value);
-
- /**
- * Find child node that has specified attribute (use pattern matching for attribute name/value)
- *
- * \param attr_name - pattern for attribute name of child node
- * \param attr_value - pattern for attribute value of child node
- * \return first matching child node, or empty node
- */
- xml_node find_child_by_attribute_w(const char* attr_name, const char* attr_value);
-
- #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;
-
- /**
- * Print subtree to writer
- *
- * \param writer - writer object
- * \param indent - indentation string
- * \param flags - formatting flags
- * \param depth - starting depth (used for indentation)
- */
- void print(xml_writer& writer, const char* indent = "\t", unsigned int flags = format_default, unsigned int depth = 0);
-
- /**
- * Get node offset in parsed file/string (in bytes) for debugging purposes
- *
- * \return offset in bytes to start of node data, or -1 in case of error
- * \note This will return -1 if node information changed to the extent that it's no longer possible to calculate offset, for example
- * if element node name has significantly changed; this is guaranteed to return correct offset only for nodes that have not changed
- * since parsing.
- */
- int offset_debug() const;
- };
-
-#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 destroy();
-
- 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);
-
- /**
- * Save XML to writer
- *
- * \param writer - writer object
- * \param indent - indentation string
- * \param flags - formatting flags
- */
- void save(xml_writer& writer, const char* indent = "\t", unsigned int flags = format_default);
-
- /**
- * 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);
-
- /**
- * Compute document order for the whole tree
- * Sometimes this makes evaluation of XPath queries faster.
- */
- void precompute_document_order();
-
- /**
- * Invalidate document order for the whole tree
- * If you precomputed document order for the tree and inserted new nodes/attributes after that,
- * XPath queries will sometimes give incorrect results.
- */
- void invalidate_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
-
- /**
- * Memory allocation function
- *
- * \param size - allocation size
- * \return pointer to allocated memory on success, NULL on failure
- */
- typedef void* (*allocation_function)(size_t size);
-
- /**
- * Memory deallocation function
- *
- * \param ptr - pointer to memory previously allocated by allocation function
- */
- typedef void (*deallocation_function)(void* ptr);
-
- /**
- * Override default memory management functions
- *
- * All subsequent allocations/deallocations will be performed via supplied functions. Take care not to
- * change memory management functions if any xml_document instances are still alive - this is considered
- * undefined behaviour (expect crashes/memory damages/etc.).
- *
- * \param allocate - allocation function
- * \param deallocate - deallocation function
- *
- * \note XPath-related allocations, as well as allocations in functions that return std::string (xml_node::path, as_utf8, as_utf16)
- * are not performed via these functions.
- * \note If you're using parse() with ownership transfer, you have to allocate the buffer you pass to parse() with allocation
- * function you set via this function.
- */
- void set_memory_management_functions(allocation_function allocate, deallocation_function deallocate);
-}
-
-// 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_node(pred);
- if (found) return found;
- }
- }
-
- return xml_node();
- }
-}
-
-#endif
+///////////////////////////////////////////////////////////////////////////////
+//
+// Pug Improved XML Parser - Version 0.4
+// --------------------------------------------------------
+// Copyright (C) 2006-2009, 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 <iosfwd>
+#endif
+
+// No XPath without STL
+#ifdef PUGIXML_NO_STL
+# ifndef PUGIXML_NO_XPATH
+# define PUGIXML_NO_XPATH
+# endif
+#endif
+
+#include <stddef.h>
+
+/// 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. '<?...?>'
+ node_declaration ///< E.g. '<?xml ...?>'
+ };
+
+ // 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 flag determines if XML document declaration (this node has the form of <?xml ... ?> in XML)
+ * are to be put in DOM tree. If this flag is off, it is not put in the tree, but is still parsed
+ * and checked for correctness.
+ *
+ * The corresponding node in DOM tree will have type node_declaration, name "xml" and attributes,
+ * if any.
+ *
+ * This flag is off by default.
+ */
+ const unsigned int parse_declaration = 0x0100;
+
+ /**
+ * 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 if UTF-8 BOM is to be written to output stream.
+ *
+ * This flag is off by default.
+ */
+ const unsigned int format_write_bom_utf8 = 0x02;
+
+ /**
+ * 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 = 0x04;
+
+ /**
+ * If this flag is on, no default XML declaration is written to output file.
+ * This means that there will be no XML declaration in output stream unless there was one in XML document
+ * (i.e. if it was parsed with parse_declaration flag).
+ *
+ * This flag is off by default.
+ */
+ const unsigned int format_no_declaration = 0x08;
+
+ /**
+ * This is the default set of formatting flags. It includes indenting nodes depending on their
+ * depth in DOM tree.
+ */
+ const unsigned int format_default = format_indent;
+
+ // 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
+
+ /**
+ * Abstract writer class
+ * \see xml_node::print
+ */
+ class xml_writer
+ {
+ public:
+ /**
+ * Virtual dtor
+ */
+ virtual ~xml_writer() {}
+
+ /**
+ * Write memory chunk into stream/file/whatever
+ *
+ * \param data - data pointer
+ * \param size - data size
+ */
+ virtual void write(const void* data, size_t size) = 0;
+ };
+
+ /** xml_writer implementation for FILE*
+ * \see xml_writer
+ */
+ class xml_writer_file: public xml_writer
+ {
+ public:
+ /**
+ * Construct writer instance
+ *
+ * \param file - this is FILE* object, void* is used to avoid header dependencies on stdio
+ */
+ xml_writer_file(void* file);
+
+ virtual void write(const void* data, size_t size);
+
+ private:
+ void* file;
+ };
+
+ #ifndef PUGIXML_NO_STL
+ /** xml_writer implementation for streams
+ * \see xml_writer
+ */
+ class xml_writer_stream: public xml_writer
+ {
+ public:
+ /**
+ * Construct writer instance
+ *
+ * \param stream - output stream object
+ */
+ xml_writer_stream(std::ostream& stream);
+
+ virtual void write(const void* data, size_t size);
+
+ private:
+ std::ostream* stream;
+ };
+ #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
+#ifdef __MWERKS__
+ typedef bool (xml_attribute::*unspecified_bool_type)() const;
+#else
+ typedef xml_attribute_struct* xml_attribute::*unspecified_bool_type;
+#endif
+
+ /// \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 unsigned int.
+ *
+ * \return attribute value as unsigned int, or 0 if conversion did not succeed or attribute is empty
+ * \note values out of non-negative int range (usually [0, 2^31-1]) get clamped to range boundaries
+ */
+ unsigned int as_uint() 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=(unsigned 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
+#ifdef __MWERKS__
+ typedef bool (xml_node::*unspecified_bool_type)() const;
+#else
+ typedef xml_node_struct* xml_node::*unspecified_bool_type;
+#endif
+
+ /// \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 a copy of the specified attribute (for element nodes)
+ *
+ * \param proto - attribute prototype which is to be copied
+ * \return inserted attribute, or empty attribute if there was an error (wrong node type)
+ */
+ xml_attribute append_copy(const xml_attribute& proto);
+
+ /**
+ * Insert a copy of the specified attribute after \a attr (for element nodes)
+ *
+ * \param proto - attribute prototype which is to be copied
+ * \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_copy_after(const xml_attribute& proto, const xml_attribute& attr);
+
+ /**
+ * Insert a copy of the specified attribute before \a attr (for element nodes)
+ *
+ * \param proto - attribute prototype which is to be copied
+ * \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_copy_before(const xml_attribute& proto, 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);
+
+ /**
+ * Add a copy of the specified node as a child (for element nodes)
+ *
+ * \param proto - node prototype which is to be copied
+ * \return inserted node, or empty node if there was an error (wrong node type)
+ */
+ xml_node append_copy(const xml_node& proto);
+
+ /**
+ * Insert a copy of the specified node after \a node (for element nodes)
+ *
+ * \param proto - node prototype which is to be copied
+ * \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_copy_after(const xml_node& proto, const xml_node& node);
+
+ /**
+ * Insert a copy of the specified node before \a node (for element nodes)
+ *
+ * \param proto - node prototype which is to be copied
+ * \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_copy_before(const xml_node& proto, 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;
+
+ /**
+ * Find child node with the specified name that has specified attribute
+ *
+ * \param name - child node name
+ * \param attr_name - attribute name of child node
+ * \param attr_value - attribute value of child node
+ * \return first matching child node, or empty node
+ */
+ xml_node find_child_by_attribute(const char* name, const char* attr_name, const char* attr_value);
+
+ /**
+ * Find child node with the specified name that has specified attribute (use pattern matching for node name and attribute name/value)
+ *
+ * \param name - pattern for child node name
+ * \param attr_name - pattern for attribute name of child node
+ * \param attr_value - pattern for attribute value of child node
+ * \return first matching child node, or empty node
+ */
+ xml_node find_child_by_attribute_w(const char* name, const char* attr_name, const char* attr_value);
+
+ /**
+ * Find child node that has specified attribute
+ *
+ * \param attr_name - attribute name of child node
+ * \param attr_value - attribute value of child node
+ * \return first matching child node, or empty node
+ */
+ xml_node find_child_by_attribute(const char* attr_name, const char* attr_value);
+
+ /**
+ * Find child node that has specified attribute (use pattern matching for attribute name/value)
+ *
+ * \param attr_name - pattern for attribute name of child node
+ * \param attr_value - pattern for attribute value of child node
+ * \return first matching child node, or empty node
+ */
+ xml_node find_child_by_attribute_w(const char* attr_name, const char* attr_value);
+
+ #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;
+
+ /**
+ * Print subtree to writer
+ *
+ * \param writer - writer object
+ * \param indent - indentation string
+ * \param flags - formatting flags
+ * \param depth - starting depth (used for indentation)
+ */
+ void print(xml_writer& writer, const char* indent = "\t", unsigned int flags = format_default, unsigned int depth = 0);
+
+ /**
+ * Get node offset in parsed file/string (in bytes) for debugging purposes
+ *
+ * \return offset in bytes to start of node data, or -1 in case of error
+ * \note This will return -1 if node information changed to the extent that it's no longer possible to calculate offset, for example
+ * if element node name has significantly changed; this is guaranteed to return correct offset only for nodes that have not changed
+ * since parsing.
+ */
+ int offset_debug() const;
+ };
+
+#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 {};
+
+ /**
+ * Parsing status enumeration, returned as part of xml_parse_result struct
+ */
+ enum xml_parse_status
+ {
+ status_ok = 0, ///< No error
+
+ status_file_not_found, ///< File was not found during load_file()
+ status_io_error, ///< Error reading from file/stream
+ status_out_of_memory, ///< Could not allocate memory
+ status_internal_error, ///< Internal error occured
+
+ status_unrecognized_tag, ///< Parser could not determine tag type
+
+ status_bad_pi, ///< Parsing error occured while parsing document declaration/processing instruction (<?...?>)
+ status_bad_comment, ///< Parsing error occured while parsing comment (<!--...-->)
+ status_bad_cdata, ///< Parsing error occured while parsing CDATA section (<![CDATA[...]]>)
+ status_bad_doctype, ///< Parsing error occured while parsing document type declaration
+ status_bad_pcdata, ///< Parsing error occured while parsing PCDATA section (>...<)
+ status_bad_start_element, ///< Parsing error occured while parsing start element tag (<name ...>)
+ status_bad_attribute, ///< Parsing error occured while parsing element attribute
+ status_bad_end_element, ///< Parsing error occured while parsing end element tag (</name>)
+ status_end_element_mismatch ///< There was a mismatch of start-end tags (closing tag had incorrect name, some tag was not closed or there was an excessive closing tag)
+ };
+
+ /**
+ * Parser result
+ */
+ struct xml_parse_result
+ {
+ /// Parsing status (\see xml_parse_status)
+ xml_parse_status status;
+
+ /// Last parsed offset (in bytes from file/string start)
+ unsigned int offset;
+
+ /// Line in parser source which reported this
+ unsigned int line;
+
+ /// Cast to bool operator
+ operator bool() const
+ {
+ return status == status_ok;
+ }
+
+ /// Get error description
+ const char* description() const;
+ };
+
+ /**
+ * 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 destroy();
+
+ 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 parsing result
+ */
+ xml_parse_result load(std::istream& stream, unsigned int options = parse_default);
+#endif
+
+ /**
+ * Load document from string.
+ *
+ * \param contents - input string
+ * \param options - parsing options
+ * \return parsing result
+ */
+ xml_parse_result load(const char* contents, unsigned int options = parse_default);
+
+ /**
+ * Load document from file
+ *
+ * \param name - file name
+ * \param options - parsing options
+ * \return parsing result
+ */
+ xml_parse_result 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 parsing result
+ */
+ xml_parse_result 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 parsing result
+ */
+ xml_parse_result parse(const transfer_ownership_tag&, char* xmlstr, unsigned int options = parse_default);
+
+ /**
+ * Save XML to writer
+ *
+ * \param writer - writer object
+ * \param indent - indentation string
+ * \param flags - formatting flags
+ */
+ void save(xml_writer& writer, const char* indent = "\t", unsigned int flags = format_default);
+
+ /**
+ * 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);
+
+ /**
+ * 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
+
+ /**
+ * Memory allocation function
+ *
+ * \param size - allocation size
+ * \return pointer to allocated memory on success, NULL on failure
+ */
+ typedef void* (*allocation_function)(size_t size);
+
+ /**
+ * Memory deallocation function
+ *
+ * \param ptr - pointer to memory previously allocated by allocation function
+ */
+ typedef void (*deallocation_function)(void* ptr);
+
+ /**
+ * Override default memory management functions
+ *
+ * All subsequent allocations/deallocations will be performed via supplied functions. Take care not to
+ * change memory management functions if any xml_document instances are still alive - this is considered
+ * undefined behaviour (expect crashes/memory damages/etc.).
+ *
+ * \param allocate - allocation function
+ * \param deallocate - deallocation function
+ *
+ * \note XPath-related allocations, as well as allocations in functions that return std::string (xml_node::path, as_utf8, as_utf16)
+ * are not performed via these functions.
+ * \note If you're using parse() with ownership transfer, you have to allocate the buffer you pass to parse() with allocation
+ * function you set via this function.
+ */
+ void set_memory_management_functions(allocation_function allocate, deallocation_function deallocate);
+}
+
+// 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_node(pred);
+ if (found) return found;
+ }
+ }
+
+ return xml_node();
+ }
+}
+
+#endif
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