#include <tsxmlNode.h>

Inheritance diagram for ts::xml::Node:

[legend]

Collaboration diagram for ts::xml::Node:

Public Member Functions
virtual	~Node () override
size_t	childrenCount () const
virtual void	clear ()
virtual Node *	clone () const =0
UString	debug () const
size_t	depth () const
Document *	document ()
const Document *	document () const
virtual void	expandEnvironment (bool recurse)
Node *	firstChild ()
const Node *	firstChild () const
Element *	firstChildElement ()
const Element *	firstChildElement () const
bool	hasChildren () const
bool	ignoreNamespace () const
Node *	lastChild ()
const Node *	lastChild () const
size_t	lineNumber () const
void	move (Node *new_sibling, bool before)
void	moveAfter (Node *new_sibling)
void	moveBefore (Node *new_sibling)
Node *	nextSibling ()
const Node *	nextSibling () const
Element *	nextSiblingElement ()
const Element *	nextSiblingElement () const
virtual UString	oneLiner () const
Node *	parent ()
const Node *	parent () const
bool	preserveSpace () const
Node *	previousSibling ()
const Node *	previousSibling () const
Element *	previousSiblingElement ()
const Element *	previousSiblingElement () const
virtual void	print (TextFormatter &output, bool keep_node_open=false) const =0
virtual void	printClose (TextFormatter &output, size_t levels=UNLIMITED) const
void	removeComments (bool recurse)
void	reparent (Node *new_parent, bool last=true)
Report &	report () const
bool	ringAlone () const
void	ringInsertAfter (RingNode *o)
void	ringInsertBefore (RingNode *o)
template<typename T>
T *	ringNext ()
template<typename T>
const T *	ringNext () const
template<typename T>
T *	ringPrevious ()
template<typename T>
const T *	ringPrevious () const
void	ringRemove ()
size_t	ringSize () const
void	ringSwap (RingNode *o)
virtual void	setIignoreNamespace (bool ignore)
void	setValue (const UString &value)
virtual bool	stickyOutput () const
virtual const Tweaks &	tweaks () const
virtual UString	typeName () const =0
const UString &	value () const

Protected Member Functions
	Node (const Node &other)
	Node (Node *parent, const UString &value=UString(), bool last=true)
	Node (Report &report, size_t line=0)
Node *	identifyNextNode (TextParser &parser)
virtual bool	parseChildren (TextParser &parser, size_t max_nested)
virtual bool	parseNode (TextParser &parser, const Node *parent, size_t max_nested)=0
void	setPreserveSpace (bool on)

Detailed Description

Base class for all XML objects in a document.

Implementation note on inheritance: Node is a subclass of RingNode. The "ring" is used to link all siblings. This inheritance should be private since it is an internal characteristics of Node. However, if we make this inheritance private, the dynamic_cast operations in RingNode fail. This is a very annoying C++ feature.

Constructor & Destructor Documentation

◆ ~Node()

virtual ts::xml::Node::~Node ( )

overridevirtual

Virtual destructor.

◆ Node() [1/3]

ts::xml::Node::Node	(	Report &	report,
		size_t	line = 0 )

explicitprotected

Constructor.

Parameters

[in,out]	report	Where to report errors.
[in]	line	Line number in input document.

◆ Node() [2/3]

ts::xml::Node::Node ( const Node & other )

protected

Copy constructor.

Parameters

[in] other Other instance to copy.

◆ Node() [3/3]

ts::xml::Node::Node	(	Node *	parent,
		const UString &	value = UString(),
		bool	last = true )

explicitprotected

Constructor.

Parameters

[in,out]	parent	The parent document into which the declaration is added.
[in]	value	Value of the node.
[in]	last	If true, the child is added at the end of the list of children. If false, it is added at the beginning.

Member Function Documentation

◆ lineNumber()

size_t ts::xml::Node::lineNumber ( ) const

inline

Get the line number in input document.

Returns: The line number in input document, zero if the node was built programmatically.

◆ clear()

virtual void ts::xml::Node::clear ( )

virtual

Clear the content of the node. The node becomes empty but remains attached to its parent.

Reimplemented in ts::xml::Element.

◆ clone()

virtual Node * ts::xml::Node::clone ( ) const

pure virtual

Clone the content of the node in a dynamically allocated object. This virtual method must be implemented by subclasses to allocate a object of the right class.

Returns: The address of a new XML node of the same class as this object, same content, same structure.

Implemented in ts::xml::Comment, ts::xml::Declaration, ts::xml::Document, ts::xml::Element, ts::xml::ModelDocument, ts::xml::PatchDocument, ts::xml::Text, and ts::xml::Unknown.

◆ reparent()

void ts::xml::Node::reparent	(	Node *	new_parent,
		bool	last = true )

Attach the node to a new parent. The node is first detached from its previous parent.

Parameters

[in,out]	new_parent	New parent. If zero, the node becomes orphan. In that case, the node will no longer be freed by its parent and must be explicitly deleted.
[in]	last	If true, the child is added at the end of the list of children. If false, it is added at the beginning.

◆ moveBefore()

void ts::xml::Node::moveBefore ( Node * new_sibling )

inline

Move the node before another node, potentially to a new parent.

Parameters

[in,out] new_sibling A new sibling. The node will be moved before this one.

◆ moveAfter()

void ts::xml::Node::moveAfter ( Node * new_sibling )

inline

Move the node after another node, potentially to a new parent.

Parameters

[in,out] new_sibling A new sibling. The node will be moved after this one.

◆ move()

void ts::xml::Node::move	(	Node *	new_sibling,
		bool	before )

Move the node before or after another node, potentially to a new parent.

Parameters

[in,out]	new_sibling	A new sibling. The node will be moved before or after this one.
[in]	before	If true, move the node before new_sibling, after it otherwise.

◆ parent() [1/2]

const Node * ts::xml::Node::parent ( ) const

inline

Get the parent's node.

Returns: The parent's node or a null pointer if this is a top-level document.

◆ parent() [2/2]

Node * ts::xml::Node::parent ( )

inline

Get the parent's node.

Returns: The parent's node or zero if this is a top-level document.

◆ document() [1/2]

const Document * ts::xml::Node::document ( ) const

inline

Get the document into which the node is located.

Returns: The node's document or zero if there is no document.

◆ document() [2/2]

Document * ts::xml::Node::document ( )

Get the document into which the node is located.

Returns: The node's document or zero if there is no document.

◆ tweaks()

virtual const Tweaks & ts::xml::Node::tweaks ( ) const

virtual

Get a constant reference to the current XML parsing and formatting tweaks for this node.

Returns: A constant reference to the XML tweaks to apply. When the node is part of a document, get the global tweaks of the document. Otherwise, get the default tweaks.

Reimplemented in ts::xml::Document.

◆ depth()

size_t ts::xml::Node::depth ( ) const

Get the depth of an XML element.

Returns: The depth of the element, ie. the number of ancestors.

◆ preserveSpace()

bool ts::xml::Node::preserveSpace ( ) const

Check if the node or one of its ancestors has attribute xml:space="preserve".

Returns: True if spaces shall be preserved.

◆ ignoreNamespace()

bool ts::xml::Node::ignoreNamespace ( ) const

inline

Check if namespace is ignored by default when comparing element and attribute names in this node's hierarchy.

Returns: True if namespace is ignored by default.

◆ setIignoreNamespace()

virtual void ts::xml::Node::setIignoreNamespace ( bool ignore )

virtual

Specify if namespace is ignored by default when comparing element and attribute names in this node's hierarchy.

Parameters

[in] ignore It true, namespace is ignored by default.

Reimplemented in ts::xml::Element.

◆ hasChildren()

bool ts::xml::Node::hasChildren ( ) const

inline

Check if the node has children.

Returns: True if the node has children.

◆ childrenCount()

size_t ts::xml::Node::childrenCount ( ) const

inline

Get the number of children.

Returns: The number of children.

◆ firstChild() [1/2]

const Node * ts::xml::Node::firstChild ( ) const

inline

Get the first child of a node.

Returns: The first child of the node or zero if there is no children.

◆ firstChild() [2/2]

Node * ts::xml::Node::firstChild ( )

inline

Get the first child of a node.

Returns: The first child of the node or zero if there is no children.

◆ lastChild() [1/2]

const Node * ts::xml::Node::lastChild ( ) const

inline

Get the last child.

Returns: The last child or zero if there is none.

◆ lastChild() [2/2]

Node * ts::xml::Node::lastChild ( )

inline

Get the last child.

Returns: The last child or nullptr if there is none.

◆ nextSibling() [1/2]

const Node * ts::xml::Node::nextSibling ( ) const

inline

Get the next sibling node.

Returns: The next sibling node or zero if the node is the last child.

◆ nextSibling() [2/2]

Node * ts::xml::Node::nextSibling ( )

Get the next sibling node.

Returns: The next sibling node or zero if the node is the last child.

◆ previousSibling() [1/2]

const Node * ts::xml::Node::previousSibling ( ) const

inline

Get the previous sibling node.

Returns: The previous sibling node or zero if the node is the first child.

◆ previousSibling() [2/2]

Node * ts::xml::Node::previousSibling ( )

Get the previous sibling node.

Returns: The previous sibling node or zero if the node is the first child.

◆ firstChildElement() [1/2]

const Element * ts::xml::Node::firstChildElement ( ) const

inline

Get the first child Element of a node.

Returns: The first child Element of the node or zero if there is no child Element.

◆ firstChildElement() [2/2]

Element * ts::xml::Node::firstChildElement ( )

Get the first child Element of a node.

Returns: The first child Element of the node or zero if there is no child Element.

◆ nextSiblingElement() [1/2]

const Element * ts::xml::Node::nextSiblingElement ( ) const

inline

Find the next sibling element.

Returns: Element address or zero if not found.

◆ nextSiblingElement() [2/2]

Element * ts::xml::Node::nextSiblingElement ( )

Find the next sibling element.

Returns: Element address or zero if not found.

◆ previousSiblingElement() [1/2]

const Element * ts::xml::Node::previousSiblingElement ( ) const

inline

Find the previous sibling element.

Returns: Element address or zero if not found.

◆ previousSiblingElement() [2/2]

Element * ts::xml::Node::previousSiblingElement ( )

Find the previous sibling element.

Returns: Element address or zero if not found.

◆ value()

const UString & ts::xml::Node::value ( ) const

inline

Get the value of the node.

The semantic of the value depends on the node subclass:

Comment: Content of the comment, without "".
Declaration: Content of the declaration, without "<?" and "?>".
Document: Empty.
Element: Name of the element.
Text: Text content of the element, including spaces and new-lines.
Unknown: Content of the tag, probably an uninterpreted DTD.

Returns: A constant reference to the node value, as a string.

◆ setValue()

void ts::xml::Node::setValue ( const UString & value )

inline

Set the value of the node.

Parameters

[in] value New value to set.

See also: value()

◆ removeComments()

void ts::xml::Node::removeComments ( bool recurse )

Remove all comments in the XML node.

Parameters

[in] recurse If true, apply recursively to all children nodes.

◆ expandEnvironment()

virtual void ts::xml::Node::expandEnvironment ( bool recurse )

virtual

Expand all environment variables in the XML node. Environment variables are referenced using '${varname}' in text, attributes, names.

Parameters

[in] recurse If true, apply recursively to all children nodes.

Reimplemented in ts::xml::Element.

◆ typeName()

virtual UString ts::xml::Node::typeName ( ) const

pure virtual

Return a node type name, mainly for debug purpose.

Returns: Node type name.

Implemented in ts::xml::Comment, ts::xml::Declaration, ts::xml::Document, ts::xml::Element, ts::xml::Text, and ts::xml::Unknown.

◆ print()

virtual void ts::xml::Node::print	(	TextFormatter &	output,
		bool	keep_node_open = false ) const

pure virtual

Format the node for an output XML document.

Parameters

[in,out]	output	The output object to format the XML document.
[in]	keep_node_open	If true, keep the node open so that children may be printed later.

Implemented in ts::xml::Comment, ts::xml::Declaration, ts::xml::Document, ts::xml::Element, ts::xml::Text, and ts::xml::Unknown.

◆ printClose()

virtual void ts::xml::Node::printClose	(	TextFormatter &	output,
		size_t	levels = UNLIMITED ) const

virtual

Print the closing tags for the node. Typically used after print() when keep_node_open was true. The default implementation is to do nothing. Subclasses may replace this.

Parameters

[in,out]	output	The output object to format the XML document.
[in]	levels	Number of levels to close. By default, close the complete document. If zero, no output is produced.

Reimplemented in ts::xml::Document, and ts::xml::Element.

◆ oneLiner()

virtual UString ts::xml::Node::oneLiner ( ) const

virtual

Format the value as a one-liner XML text.

Returns: The formatted one-line XML text.

◆ stickyOutput()

virtual bool ts::xml::Node::stickyOutput ( ) const

virtual

Check if the text shall be stuck to other elements in XML output.

Returns: True if the text shall be stuck to other elements. False by default.

Reimplemented in ts::xml::Text.

◆ debug()

UString ts::xml::Node::debug ( ) const

Build a debug string for the node.

Returns: A debug string for the node.

◆ report()

Report & ts::xml::Node::report ( ) const

inline

Get a reference to the report object for the XML node.

Returns: A reference to the report object for the XML node.

◆ identifyNextNode()

Node * ts::xml::Node::identifyNextNode ( TextParser & parser )

protected

Identify the next token in the document.

Parameters

[in,out] parser The document parser.

Returns: A new node or zero either at end of document or before a "</" sequence. The returned node, when not zero, is not yet linked to its parent and siblings. When the returned node is not zero, the parser is located after the tag which identified the node ("<?", "<!- -", etc.)

◆ parseNode()

virtual bool ts::xml::Node::parseNode	(	TextParser &	parser,
		const Node *	parent,
		size_t	max_nested )

protectedpure virtual

Parse the node.

Parameters

[in,out]	parser	The document parser. On input, the current position of the parser after the tag which identified the node ("<?", "<!- -", etc.) On output, it must be after the last character of the node.
[in]	parent	Candidate parent node, for information only, do not modify. Can be null.
[in]	max_nested	Maximum number of nested levels to explore.

Returns: True on success, false on error.

Implemented in ts::xml::Comment, ts::xml::Declaration, ts::xml::Document, ts::xml::Element, ts::xml::Text, and ts::xml::Unknown.

◆ parseChildren()

virtual bool ts::xml::Node::parseChildren	(	TextParser &	parser,
		size_t	max_nested )

protectedvirtual

Parse children nodes and add them to the node. Stop either at end of document or before a "</" sequence or on error.

Parameters

[in,out]	parser	The document parser.
[in]	max_nested	Maximum number of nested levels to explore.

Returns: True on success, false on error.

◆ setPreserveSpace()

void ts::xml::Node::setPreserveSpace ( bool on )

inlineprotected

Called by the subclass when its spaces shall be preserved. Typically called when xml:space="preserve" is encountered.

Parameters

[in] on True is spaces shall be preserved.

◆ ringAlone()

bool ts::RingNode::ringAlone ( ) const

inlineinherited

Check if the node is alone in its own ring.

Returns: True if the node is alone in its own ring.

◆ ringRemove()

void ts::RingNode::ringRemove ( )

inherited

Remove the node from the ring it belongs to and creates its own ring.

◆ ringInsertAfter()

void ts::RingNode::ringInsertAfter ( RingNode * o )

inherited

Insert this object in a ring after the specified node.

Parameters

[in] o A node of a ring. This object is inserted after o in the ring.

◆ ringInsertBefore()

void ts::RingNode::ringInsertBefore ( RingNode * o )

inherited

Insert this object in a ring before the specified node.

Parameters

[in] o A node of a ring. This object is inserted before o in the ring.

◆ ringSwap()

void ts::RingNode::ringSwap ( RingNode * o )

inherited

Swap this object and another one in their rings. If the two objects belong to the same ring, their positions are swapped. If they belong to distinct rings, they also move to each other's ring.

Parameters

[in] o The node to swap with.

◆ ringNext() [1/2]

template<typename T>

T * ts::RingNode::ringNext ( )

inlineinherited

Get the next node in the ring.

Template Parameters

T	A superclass of RingNode, the expected type of the next object in the ring.

Returns: Address of the next node in the ring or zero if the next node is not a subclass of T.

◆ ringNext() [2/2]

template<typename T>

const T * ts::RingNode::ringNext ( ) const

inlineinherited

Get the next node in the ring.

Template Parameters

T	A superclass of RingNode, the expected type of the next object in the ring.

Returns: Address of the next node in the ring or zero if the next node is not a subclass of T.

◆ ringPrevious() [1/2]

template<typename T>

T * ts::RingNode::ringPrevious ( )

inlineinherited

Get the previous node in the ring.

Template Parameters

T	A superclass of RingNode, the expected type of the previous object in the ring.

Returns: Address of the previous node in the ring or zero if the previous node is not a subclass of T.

◆ ringPrevious() [2/2]

template<typename T>

const T * ts::RingNode::ringPrevious ( ) const

inlineinherited

Get the previous node in the ring.

Template Parameters

T	A superclass of RingNode, the expected type of the previous object in the ring.

Returns: Address of the previous node in the ring or zero if the previous node is not a subclass of T.

◆ ringSize()

size_t ts::RingNode::ringSize ( ) const

inherited

Count the number of element in the ring. Warning: This method has a linear response time, avoid using it when possible.

Returns: The number of nodes in the ring.

The documentation for this class was generated from the following file:

tsxmlNode.h

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ ~Node()

◆ Node() [1/3]

◆ Node() [2/3]

◆ Node() [3/3]

Member Function Documentation

◆ lineNumber()

◆ clear()

◆ clone()

◆ reparent()

◆ moveBefore()

◆ moveAfter()

◆ move()

◆ parent() [1/2]

◆ parent() [2/2]

◆ document() [1/2]

◆ document() [2/2]

◆ tweaks()

◆ depth()

◆ preserveSpace()

◆ ignoreNamespace()

◆ setIignoreNamespace()

◆ hasChildren()

◆ childrenCount()

◆ firstChild() [1/2]

◆ firstChild() [2/2]

◆ lastChild() [1/2]

◆ lastChild() [2/2]

◆ nextSibling() [1/2]

◆ nextSibling() [2/2]

◆ previousSibling() [1/2]

◆ previousSibling() [2/2]

◆ firstChildElement() [1/2]

◆ firstChildElement() [2/2]

◆ nextSiblingElement() [1/2]

◆ nextSiblingElement() [2/2]

◆ previousSiblingElement() [1/2]

◆ previousSiblingElement() [2/2]

◆ value()

◆ setValue()

◆ removeComments()

◆ expandEnvironment()

◆ typeName()

◆ print()

◆ printClose()

◆ oneLiner()

◆ stickyOutput()

◆ debug()

◆ report()

◆ identifyNextNode()

◆ parseNode()

◆ parseChildren()

◆ setPreserveSpace()

◆ ringAlone()

◆ ringRemove()

◆ ringInsertAfter()

◆ ringInsertBefore()

◆ ringSwap()

◆ ringNext() [1/2]

◆ ringNext() [2/2]

◆ ringPrevious() [1/2]

◆ ringPrevious() [2/2]

◆ ringSize()