Inheritance diagram for XMLNode:

Detailed Description

A node in libSBML's XML document tree.

LibSBML implements an XML abstraction layer. This layer presents a uniform XML interface to calling programs regardless of which underlying XML parser libSBML has actually been configured to use. The basic data object in the XML abstraction is a node, represented by XMLNode.

An XMLNode can contain any number of children. Each child is another XMLNode, thereby forming a tree. The methods XMLNode::getNumChildren() and XMLNode::getChild() can be used to access the tree structure starting from a given node.

Each XMLNode is subclassed from XMLToken, and thus has the same methods available as XMLToken. These methods include XMLToken::getNamespaces(), XMLToken::getPrefix(), XMLToken::getName(), XMLToken::getURI(), and XMLToken::getAttributes().

Conversion between an XML string and an XMLNode

LibSBML provides the following utility functions for converting an XML string (e.g., <annotation>...</annotation>) to/from an XMLNode object.

XMLNode::toXMLString() returns a string representation of the XMLNode object.

XMLNode::convertXMLNodeToString() (static function) returns a string representation of the given XMLNode object.

XMLNode::convertStringToXMLNode() (static function) returns an XMLNode object converted from the given XML string.

The returned XMLNode object by XMLNode::convertStringToXMLNode() is a dummy root (container) XMLNode if the given XML string has two or more top-level elements (e.g., "<p>...</p><p>...</p>"). In the dummy root node, each top-level element in the given XML string is contained as a child XMLNode. XMLToken::isEOF() can be used to identify if the returned XMLNode object is a dummy node or not. Here is an example:

// Checks if the XMLNode object returned by XMLNode::convertStringToXMLNode()
// is a dummy root node:
std::string str = "...";
XMLNode* xn = XMLNode::convertStringToXMLNode(str);
if ( xn == NULL )
{
  // returned value is null (error)
  ...
}
else if ( xn->isEOF() )
{
  // Root node is a dummy node.
  for ( int i = 0; i < xn->getNumChildren(); i++ )
  {
    // access to each child node of the dummy node.
    XMLNode& xnChild = xn->getChild(i);
    ...
  }
}
else
{
  // Root node is NOT a dummy node.
  ...
}

Examples:: addingEvidenceCodes_2.cpp, and createExampleSBML.cpp.

Public Member Functions
int	addAttr (const std::string &name, const std::string &value, const std::string namespaceURI="", const std::string prefix="")
	Adds an attribute to the XML element represented by this token. More...

int	addAttr (const XMLTriple &triple, const std::string &value)
	Adds an attribute to the XML element represented by this token. More...

int	addChild (const XMLNode &node)
	Adds a copy of `node` as a child of this XMLNode. More...

int	addNamespace (const std::string &uri, const std::string prefix="")
	Appends an XML namespace declaration to this token. More...

int	append (const std::string &chars)
	Appends characters to the text content of token. More...

int	clearAttributes ()
	Removes all attributes of this XMLToken object. More...

int	clearNamespaces ()
	Removes all XML namespace declarations from this token. More...

XMLNode *	clone () const
	Creates and returns a deep copy of this XMLNode object. More...

bool	equals (const XMLNode &other, bool ignoreURI=false, bool ignoreAttributeValues=false) const
	Compare this XMLNode against another XMLNode returning true if both nodes represent the same XML tree, or false otherwise. More...

const XMLAttributes &	getAttributes () const
	Returns the attributes of the XML element represented by this token. More...

int	getAttributesLength () const
	Returns the number of attributes on this XMLToken object. More...

int	getAttrIndex (const std::string &name, const std::string uri="") const
	Returns the index of the attribute with the given name and namespace URI. More...

int	getAttrIndex (const XMLTriple &triple) const
	Returns the index of the attribute defined by the given XMLTriple object. More...

std::string	getAttrName (int index) const
	Returns the name of the nth attribute in this token's list of attributes. More...

std::string	getAttrPrefix (int index) const
	Returns the prefix of the nth attribute in this token's list of attributes. More...

std::string	getAttrPrefixedName (int index) const
	Returns the prefixed name of the nth attribute in this token's list of attributes. More...

std::string	getAttrURI (int index) const
	Returns the XML namespace URI of the nth attribute in this token's list of attributes. More...

std::string	getAttrValue (int index) const
	Returns the value of the nth attribute in this token's list of attributes. More...

std::string	getAttrValue (const std::string &name, const std::string uri="") const
	Returns the value of the attribute with a given name and XML namespace URI. More...

std::string	getAttrValue (const XMLTriple &triple) const
	Returns the value of the attribute specified by a given XMLTriple object. More...

const std::string &	getCharacters () const
	Returns the character text of token. More...

XMLNode &	getChild (unsigned int n)
	Returns the `n`th child of this XMLNode. More...

const XMLNode &	getChild (unsigned int n) const
	Returns the `n`th child of this XMLNode. More...

XMLNode &	getChild (const std::string &name)
	Returns the first child of this XMLNode with the corresponding name. More...

const XMLNode &	getChild (const std::string &name) const
	Returns the first child of this XMLNode with the corresponding name. More...

unsigned int	getColumn () const
	Returns the column number at which this token occurs in the input. More...

int	getIndex (const std::string &name) const
	Return the index of the first child of this XMLNode with the given name. More...

unsigned int	getLine () const
	Returns the line number at which this token occurs in the input. More...

const std::string &	getName () const
	Returns the (unqualified) name of token. More...

int	getNamespaceIndex (const std::string &uri) const
	Returns the index of an XML namespace declaration based on its URI. More...

int	getNamespaceIndexByPrefix (const std::string &prefix) const
	Returns the index of an XML namespace declaration based on its prefix. More...

std::string	getNamespacePrefix (int index) const
	Returns the prefix of the nth XML namespace declaration. More...

std::string	getNamespacePrefix (const std::string &uri) const
	Returns the prefix associated with a given XML namespace URI on this token. More...

const XMLNamespaces &	getNamespaces () const
	Returns the XML namespaces declared for this token. More...

int	getNamespacesLength () const
	Returns the number of XML namespaces declared on this token. More...

std::string	getNamespaceURI (int index) const
	Returns the URI of the nth XML namespace declared on this token. More...

std::string	getNamespaceURI (const std::string prefix="") const
	Returns the URI of an XML namespace with a given prefix. More...

unsigned int	getNumChildren () const
	Returns the number of children for this XMLNode. More...

const std::string &	getPrefix () const
	Returns the XML namespace prefix of token. More...

const std::string &	getURI () const
	Returns the XML namespace URI of token. More...

bool	hasAttr (int index) const
	Returns `true` if an attribute with the given index exists. More...

bool	hasAttr (const std::string &name, const std::string uri="") const
	Returns `true` if an attribute with a given name and namespace URI exists. More...

bool	hasAttr (const XMLTriple &triple) const
	Returns `true` if an attribute defined by a given XMLTriple object exists. More...

bool	hasChild (const std::string &name) const
	Return a boolean indicating whether this XMLNode has a child with the given name. More...

bool	hasNamespaceNS (const std::string &uri, const std::string &prefix) const
	Returns `true` if this token has an XML namespace with a given prefix and URI combination. More...

bool	hasNamespacePrefix (const std::string &prefix) const
	Returns `true` if this token has an XML namespace with a given prefix. More...

bool	hasNamespaceURI (const std::string &uri) const
	Returns `true` if this token has an XML namespace with a given URI. More...

XMLNode &	insertChild (unsigned int n, const XMLNode &node)
	Inserts a copy of the given node as the `n`th child of this XMLNode. More...

bool	isAttributesEmpty () const
	Returns `true` if this token has no attributes. More...

bool	isElement () const
	Returns `true` if this token represents an XML element. More...

bool	isEnd () const
	Returns `true` if this token represents an XML end element. More...

bool	isEndFor (const XMLToken &element) const
	Returns `true` if this token represents an XML end element for a particular start element. More...

bool	isEOF () const
	Returns `true` if this token is an end of file marker. More...

bool	isNamespacesEmpty () const
	Returns `true` if there are no namespaces declared on this token. More...

bool	isStart () const
	Returns `true` if this token represents an XML start element. More...

bool	isText () const
	Returns `true` if this token represents an XML text element. More...

XMLNode &	operator= (const XMLNode &rhs)
	Assignment operator for XMLNode. More...

int	removeAttr (int n)
	Removes the nth attribute from the XML element represented by this token. More...

int	removeAttr (const std::string &name, const std::string uri="")
	Removes an attribute from the XML element represented by this token. More...

int	removeAttr (const XMLTriple &triple)
	Removes an attribute from the XML element represented by this token. More...

XMLNode *	removeChild (unsigned int n)
	Removes the `n`th child of this XMLNode and returns the removed node. More...

int	removeChildren ()
	Removes all children from this node. More...

int	removeNamespace (int index)
	Removes the nth XML namespace declaration. More...

int	removeNamespace (const std::string &prefix)
	Removes an XML namespace declaration having a given prefix. More...

int	setAttributes (const XMLAttributes &attributes)
	Sets the attributes on the XML element represented by this token. More...

int	setCharacters (const std::string &chars)
	Sets the characters for this XMLToken. More...

int	setEnd ()
	Declares that this token represents an XML element end tag. More...

int	setEOF ()
	Declares that this token is an end-of-file/input marker. More...

int	setNamespaces (const XMLNamespaces &namespaces)
	Sets the XML namespaces on this XML element. More...

int	setTriple (const XMLTriple &triple)
	Sets the name, namespace prefix and namespace URI of this token. More...

std::string	toString ()
	Prints a string representation of the underlying token stream. More...

std::string	toXMLString () const
	Returns a string representation of this XMLNode. More...

int	unsetEnd ()
	Declares that this token no longer represents an XML start/end element. More...

	XMLNode ()
	Creates a new empty XMLNode with no children. More...

	XMLNode (const XMLToken &token)
	Creates a new XMLNode by copying an XMLToken object. More...

	XMLNode (const XMLTriple &triple, const XMLAttributes &attributes, const XMLNamespaces &namespaces, const unsigned int line=0, const unsigned int column=0)
	Creates a new start element XMLNode with the given set of attributes and namespace declarations. More...

	XMLNode (const XMLTriple &triple, const XMLAttributes &attributes, const unsigned int line=0, const unsigned int column=0)
	Creates a start element XMLNode with the given set of attributes. More...

	XMLNode (const XMLTriple &triple, const unsigned int line=0, const unsigned int column=0)
	Creates an end element XMLNode. More...

	XMLNode (const std::string &chars, const unsigned int line=0, const unsigned int column=0)
	Creates a text XMLNode. More...

	XMLNode (const XMLNode &orig)
	Copy constructor; creates a copy of this XMLNode. More...

virtual	~XMLNode ()
	Destroys this XMLNode. More...

Static Public Member Functions
static XMLNode *	convertStringToXMLNode (const std::string &xmlstr, const XMLNamespaces *xmlns=NULL)
	Returns an XMLNode which is derived from a string containing XML content. More...

static std::string	convertXMLNodeToString (const XMLNode *node)
	Returns a string representation of a given XMLNode. More...

Constructor & Destructor Documentation

XMLNode::XMLNode ( )

Creates a new empty XMLNode with no children.

XMLNode::XMLNode ( const XMLToken & token )

Creates a new XMLNode by copying an XMLToken object.

Parameters

token XMLToken to be copied to XMLNode.

XMLNode::XMLNode	(	const XMLTriple &	triple,
		const XMLAttributes &	attributes,
		const XMLNamespaces &	namespaces,
		const unsigned int	line = `0`,
		const unsigned int	column = `0`
	)

Creates a new start element XMLNode with the given set of attributes and namespace declarations.

Parameters

triple	XMLTriple.
attributes	XMLAttributes, the attributes to set.
namespaces	XMLNamespaces, the namespaces to set.
line	an unsigned int, the line number (default = 0).
column	an unsigned int, the column number (default = 0).

XMLNode::XMLNode	(	const XMLTriple &	triple,
		const XMLAttributes &	attributes,
		const unsigned int	line = `0`,
		const unsigned int	column = `0`
	)

Creates a start element XMLNode with the given set of attributes.

Parameters

triple	XMLTriple.
attributes	XMLAttributes, the attributes to set.
line	an unsigned int, the line number (default = 0).
column	an unsigned int, the column number (default = 0).

XMLNode::XMLNode	(	const XMLTriple &	triple,
		const unsigned int	line = `0`,
		const unsigned int	column = `0`
	)

Creates an end element XMLNode.

Parameters

triple	XMLTriple.
line	an unsigned int, the line number (default = 0).
column	an unsigned int, the column number (default = 0).

XMLNode::XMLNode	(	const std::string &	chars,
		const unsigned int	line = `0`,
		const unsigned int	column = `0`
	)

Creates a text XMLNode.

Parameters

chars	a string, the text to be added to the XMLToken.
line	an unsigned int, the line number (default = 0).
column	an unsigned int, the column number (default = 0).

XMLNode::~XMLNode ( )

virtual

Destroys this XMLNode.

XMLNode::XMLNode ( const XMLNode & orig )

Copy constructor; creates a copy of this XMLNode.

Parameters

orig	the XMLNode instance to copy.

Member Function Documentation

int XMLToken::addAttr	(	const std::string &	name,
		const std::string &	value,
		const std::string	namespaceURI = `""`,
		const std::string	prefix = `""`
	)

inherited

Adds an attribute to the XML element represented by this token.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

name	a string, the so-called "local part" of the attribute name; that is, the attribute name without any namespace qualifier or prefix.
value	a string, the value assigned to the attribute.
namespaceURI	a string, the XML namespace URI of the attribute.
prefix	a string, the prefix for the XML namespace.

Recall that in XML, the complete form of an attribute on an XML element is the following:

prefix:name="value"

The name part is the name of the attribute, the "value" part is the value assigned to the attribute (and it is always a quoted string), and the prefix part is an optional XML namespace prefix. Internally in libSBML, this data is stored in an XMLAttributes object associated with this XMLToken.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

Note: If an attribute with the same name and XML namespace URI already exists on this XMLToken object, then the previous value will be replaced with the new value provided to this method.

int XMLToken::addAttr	(	const XMLTriple &	triple,
		const std::string &	value
	)

inherited

Adds an attribute to the XML element represented by this token.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

triple	an XMLTriple object defining the attribute, its value, and optionally its XML namespace (if any is provided).
value	a string, the value assigned to the attribute.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

Note: If an attribute with the same name and XML namespace URI already exists on this XMLToken object, then the previous value will be replaced with the new value provided to this method.

int XMLNode::addChild ( const XMLNode & node )

Adds a copy of node as a child of this XMLNode.

The given node is added at the end of the list of children.

Parameters

node	the XMLNode to be added as child.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

Note: The given node is added at the end of the children list.

Examples:: addingEvidenceCodes_2.cpp.

int XMLToken::addNamespace	(	const std::string &	uri,
		const std::string	prefix = `""`
	)

inherited

Appends an XML namespace declaration to this token.

The namespace added will be defined by the given XML namespace URI and an optional prefix. If this XMLToken object already possesses an XML namespace declaration with the given prefix, then the existing XML namespace URI will be overwritten by the new one given by uri.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

uri	a string, the XML namespace URI for the namespace.
prefix	a string, the namespace prefix to use.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

int XMLToken::append ( const std::string & chars )

inherited

Appends characters to the text content of token.

This method only makes sense for XMLToken objects that contains text. If this method is called on a token that represents an XML start or end tag, it will return the code LIBSBML_OPERATION_FAILED.

Parameters

chars string, characters to append to the text of this token.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

See also: isText(); isElement()

int XMLToken::clearAttributes ( )

inherited

Removes all attributes of this XMLToken object.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

int XMLToken::clearNamespaces ( )

inherited

Removes all XML namespace declarations from this token.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

XMLNode * XMLNode::clone ( ) const

Creates and returns a deep copy of this XMLNode object.

Returns: the (deep) copy of this XMLNode object.

XMLNode * XMLNode::convertStringToXMLNode	(	const std::string &	xmlstr,
		const XMLNamespaces *	xmlns = `NULL`
	)

static

Returns an XMLNode which is derived from a string containing XML content.

The XML namespace must be defined using argument xmlns if the corresponding XML namespace attribute is not part of the string of the first argument.

Parameters

xmlstr	string to be converted to a XML node.
xmlns	XMLNamespaces the namespaces to set (default value is `NULL`).

Note: The caller owns the returned XMLNode and is reponsible for deleting it. The returned XMLNode object is a dummy root (container) XMLNode if the top-level element in the given XML string is NOT <html>, <body>, <annotation>, or <notes>. In the dummy root node, each top-level element in the given XML string is contained as a child XMLNode. XMLToken::isEOF() can be used to identify if the returned XMLNode object is a dummy node.

Returns: a XMLNode which is converted from string xmlstr. If the conversion failed, this method returns NULL.

std::string XMLNode::convertXMLNodeToString ( const XMLNode * node )

static

Returns a string representation of a given XMLNode.

Parameters

node	the XMLNode to be represented as a string.

Returns: a string-form representation of node.

bool XMLNode::equals	(	const XMLNode &	other,
		bool	ignoreURI = `false`,
		bool	ignoreAttributeValues = `false`
	)		const

Compare this XMLNode against another XMLNode returning true if both nodes represent the same XML tree, or false otherwise.

Parameters

other	another XMLNode to compare against.
ignoreURI	whether to ignore the namespace URI when doing the comparison.
ignoreAttributeValues	whetehr to ignore attribute values when doing the comparison.

Returns: boolean indicating whether this XMLNode represents the same XML tree as another.

Parameters

other another XMLNode to compare against

Returns: boolean indicating whether this XMLNode represents the same XML tree as another.

const XMLAttributes & XMLToken::getAttributes ( ) const

inherited

Returns the attributes of the XML element represented by this token.

Returns: the attributes of this XML element, stored in an XMLAttributes object.

int XMLToken::getAttributesLength ( ) const

inherited

Returns the number of attributes on this XMLToken object.

Returns: the number of attributes possessed by this token.

See also: hasAttr()

int XMLToken::getAttrIndex	(	const std::string &	name,
		const std::string	uri = `""`
	)		const

inherited

Returns the index of the attribute with the given name and namespace URI.

Parameters

name	a string, the name of the attribute.
uri	a string, the namespace URI of the attribute.

Returns: the index of an attribute with the given local name and namespace URI, or -1 if it is not present on this token.

int XMLToken::getAttrIndex ( const XMLTriple & triple ) const

inherited

Returns the index of the attribute defined by the given XMLTriple object.

Parameters

triple the XMLTriple object that defines the attribute whose index is being sought.

Returns: the index of an attribute with the given XMLTriple object, or -1 if no such attribute is present on this token.

std::string XMLToken::getAttrName ( int index ) const

inherited

Returns the name of the nth attribute in this token's list of attributes.

Parameters

index an integer, the position of the attribute whose name is being sought.

Returns: the name of the attribute located at position n in the list of attributes possessed by this XMLToken object.

Note: If index is out of range, this method will return an empty string. XMLToken::hasAttr() can be used to test for an attribute's existence explicitly, and XMLToken::getAttributesLength() can be used to find out the number of attributes possessed by this token.

See also: hasAttr(); getAttributesLength()

std::string XMLToken::getAttrPrefix ( int index ) const

inherited

Returns the prefix of the nth attribute in this token's list of attributes.

Parameters

index an integer, the position of the attribute whose prefix is being sought.

Returns: the XML namespace prefix of the attribute located at position n in the list of attributes possessed by this XMLToken object.

Note: If index is out of range, this method will return an empty string. XMLToken::hasAttr() can be used to test for an attribute's existence explicitly, and XMLToken::getAttributesLength() can be used to find out the number of attributes possessed by this token.

See also: hasAttr(); getAttributesLength()

std::string XMLToken::getAttrPrefixedName ( int index ) const

inherited

Returns the prefixed name of the nth attribute in this token's list of attributes.

In this context, prefixed name means the name of the attribute prefixed with the XML namespace prefix assigned to the attribute. This will be a string of the form prefix:name.

Parameters

index an integer, the position of the attribute whose prefixed name is being sought.

Returns: the prefixed name of the attribute located at position n in the list of attributes possessed by this XMLToken object.

Note: If index is out of range, this method will return an empty string. XMLToken::hasAttr() can be used to test for an attribute's existence explicitly, and XMLToken::getAttributesLength() can be used to find out the number of attributes possessed by this token.

std::string XMLToken::getAttrURI ( int index ) const

inherited

Returns the XML namespace URI of the nth attribute in this token's list of attributes.

Parameters

index an integer, the position of the attribute whose namespace URI is being sought.

Returns: the XML namespace URI of the attribute located at position n in the list of attributes possessed by this XMLToken object.

Note: If index is out of range, this method will return an empty string. XMLToken::hasAttr() can be used to test for an attribute's existence explicitly, and XMLToken::getAttributesLength() can be used to find out the number of attributes possessed by this token.

std::string XMLToken::getAttrValue ( int index ) const

inherited

Returns the value of the nth attribute in this token's list of attributes.

Parameters

index an integer, the position of the attribute whose value is required.

Returns: the value of the attribute located at position n in the list of attributes possessed by this XMLToken object.

Note: If index is out of range, this method will return an empty string. XMLToken::hasAttr() can be used to test for an attribute's existence explicitly, and XMLToken::getAttributesLength() can be used to find out the number of attributes possessed by this token.

std::string XMLToken::getAttrValue	(	const std::string &	name,
		const std::string	uri = `""`
	)		const

inherited

Returns the value of the attribute with a given name and XML namespace URI.

Parameters

name	a string, the name of the attribute whose value is being sought.
uri	a string, the XML namespace URI of the attribute.

Returns: The value of the attribute, as a string.

Note: If an attribute with the given name and uri does not exist on this token object, this method will return an empty string. XMLToken::hasAttr() can be used to test explicitly for the presence of an attribute with a given name and namespace.

std::string XMLToken::getAttrValue ( const XMLTriple & triple ) const

inherited

Returns the value of the attribute specified by a given XMLTriple object.

Parameters

triple an XMLTriple describing the attribute whose value is being sought.

Returns: The value of the attribute, as a string.

Note: If an attribute defined by the given triple does not exist on this token object, this method will return an empty string. XMLToken::hasAttr() can be used to test explicitly for the existence of an attribute with the properties of a given triple.

const string & XMLToken::getCharacters ( ) const

inherited

Returns the character text of token.

Returns: the characters of this XML token. If this token is not a text token (i.e., it's an XML element and not character content), then this will return an empty string.

See also: isText(); isElement()

XMLNode & XMLNode::getChild ( unsigned int n )

Returns the nth child of this XMLNode.

If the index n is greater than the number of child nodes, this method returns an empty node.

Parameters

n	an unsigned integer, the index of the node to return.

Returns: the nth child of this XMLNode.

const XMLNode & XMLNode::getChild ( unsigned int n ) const

Returns the nth child of this XMLNode.

If the index n is greater than the number of child nodes, this method returns an empty node.

Parameters

n	an unsigned integer, the index of the node to return.

Returns: the nth child of this XMLNode.

XMLNode & XMLNode::getChild ( const std::string & name )

Returns the first child of this XMLNode with the corresponding name.

If no child with corrsponding name can be found, this method returns an empty node.

Parameters

name	the name of the node to return.

Returns: the first child of this XMLNode with given name.

If no child with corrsponding name can be found, this method returns an empty node.

Parameters

name	the name of the node to return

Returns: the first child of this XMLNode with given name.

const XMLNode & XMLNode::getChild ( const std::string & name ) const

Returns the first child of this XMLNode with the corresponding name.

If no child with corrsponding name can be found, this method returns an empty node.

Parameters

name	the name of the node to return.

Returns: the first child of this XMLNode with given name.

If no child with corrsponding name can be found, this method returns an empty node.

Parameters

name	the name of the node to return

Returns: the first child of this XMLNode with given name.

unsigned int XMLToken::getColumn ( ) const

inherited

Returns the column number at which this token occurs in the input.

Returns: the column at which this XMLToken occurred.

int XMLNode::getIndex ( const std::string & name ) const

Return the index of the first child of this XMLNode with the given name.

Parameters

name	a string, the name of the child for which the index is required.

Returns: the index of the first child of this XMLNode with the given name, or -1 if not present.

unsigned int XMLToken::getLine ( ) const

inherited

Returns the line number at which this token occurs in the input.

Returns: the line at which this XMLToken occurred.

const string & XMLToken::getName ( ) const

inherited

Returns the (unqualified) name of token.

Returns: the (unqualified) name of token.

int XMLToken::getNamespaceIndex ( const std::string & uri ) const

inherited

Returns the index of an XML namespace declaration based on its URI.

Parameters

uri	a string, the XML namespace URI of the sought-after namespace.

Returns: the index of the given declaration, or -1 if no such namespace URI is present on this XMLToken object.

int XMLToken::getNamespaceIndexByPrefix ( const std::string & prefix ) const

inherited

Returns the index of an XML namespace declaration based on its prefix.

Parameters

prefix a string, the prefix of the sought-after XML namespace.

Returns: the index of the given declaration, or -1 if no such namespace URI is present on this XMLToken object.

std::string XMLToken::getNamespacePrefix ( int index ) const

inherited

Returns the prefix of the nth XML namespace declaration.

Parameters

index an integer, position of the required prefix.

Returns: the prefix of an XML namespace declaration in the XMLNamespaces (by position).

Note: If index is out of range, this method will return an empty string. XMLToken::getNamespacesLength() can be used to find out how many namespaces are defined on this XMLToken object.

See also: getNamespacesLength()

std::string XMLToken::getNamespacePrefix ( const std::string & uri ) const

inherited

Returns the prefix associated with a given XML namespace URI on this token.

Parameters

uri	a string, the URI of the namespace whose prefix is being sought.

Returns: the prefix of an XML namespace declaration on this XMLToken object.

Note: If there is no XML namespace with the given uri declared on this XMLToken object, this method will return an empty string.

const XMLNamespaces & XMLToken::getNamespaces ( ) const

inherited

Returns the XML namespaces declared for this token.

Returns: the XML namespace declarations for this XML element.

int XMLToken::getNamespacesLength ( ) const

inherited

Returns the number of XML namespaces declared on this token.

Returns: the number of XML namespaces stored in the XMLNamespaces object of this XMLToken object.

std::string XMLToken::getNamespaceURI ( int index ) const

inherited

Returns the URI of the nth XML namespace declared on this token.

Parameters

index an integer, the position of the sought-after XML namespace URI.

Returns: the URI of the nth XML namespace stored in the XMLNamespaces object in this XMLToken object.

Note: If index is out of range, this method will return an empty string.

See also: getNamespacesLength()

std::string XMLToken::getNamespaceURI ( const std::string prefix = "" ) const

inherited

Returns the URI of an XML namespace with a given prefix.

Parameters

prefix a string, the prefix of the sought-after XML namespace URI.

Returns: the URI of an XML namespace declaration given its prefix.

Note: If there is no XML namespace with the given prefix stored in the XMLNamespaces object of this XMLToken object, this method will return an empty string.

unsigned int XMLNode::getNumChildren ( ) const

Returns the number of children for this XMLNode.

Returns: the number of children for this XMLNode.

const string & XMLToken::getPrefix ( ) const

inherited

Returns the XML namespace prefix of token.

Returns: the XML namespace prefix of token.

Note: If no XML namespace prefix has been assigned to this token, this method will return an empty string.

const string & XMLToken::getURI ( ) const

inherited

Returns the XML namespace URI of token.

Returns: the XML namespace URI of token.

bool XMLToken::hasAttr ( int index ) const

inherited

Returns true if an attribute with the given index exists.

Parameters

index an integer, the position of the attribute.

Returns: true if this token object possesses an attribute with the given index, false otherwise.

bool XMLToken::hasAttr	(	const std::string &	name,
		const std::string	uri = `""`
	)		const

inherited

Returns true if an attribute with a given name and namespace URI exists.

Parameters

name	a string, the name of the attribute being sought.
uri	a string, the XML namespace URI of the attribute being sought.

Returns: true if an attribute with the given local name and namespace URI exists in the list of attributes on this token object, false otherwise.

bool XMLToken::hasAttr ( const XMLTriple & triple ) const

inherited

Returns true if an attribute defined by a given XMLTriple object exists.

Parameters

triple an XMLTriple object describing the attribute being sought.

Returns: true if an attribute matching the properties of the given XMLTriple object exists in the list of attributes on this token, false otherwise.

bool XMLNode::hasChild ( const std::string & name ) const

Return a boolean indicating whether this XMLNode has a child with the given name.

Parameters

name	a string, the name of the child to be checked.

Returns: boolean indicating whether this XMLNode has a child with the given name.

bool XMLToken::hasNamespaceNS	(	const std::string &	uri,
		const std::string &	prefix
	)		const

inherited

Returns true if this token has an XML namespace with a given prefix and URI combination.

Parameters

uri	a string, the URI for the namespace.
prefix	a string, the prefix for the namespace.

Returns: true if an XML namespace with the given URI/prefix pair is contained in the XMLNamespaces object of this XMLToken object, false otherwise.

bool XMLToken::hasNamespacePrefix ( const std::string & prefix ) const

inherited

Returns true if this token has an XML namespace with a given prefix.

Parameters

prefix a string, the prefix for the XML namespace.

Returns: true if an XML Namespace with the given URI is contained in the XMLNamespaces of this XMLToken, false otherwise.

bool XMLToken::hasNamespaceURI ( const std::string & uri ) const

inherited

Returns true if this token has an XML namespace with a given URI.

Parameters

uri	a string, the URI of the XML namespace.

Returns: true if an XML namespace with the given URI is contained in the XMLNamespaces object of this XMLToken object, false otherwise.

XMLNode & XMLNode::insertChild	(	unsigned int	n,
		const XMLNode &	node
	)

Inserts a copy of the given node as the nth child of this XMLNode.

If the given index n is out of range for this XMLNode instance, the node is added at the end of the list of children. Even in that situation, this method does not throw an error.

Parameters

n	an integer, the index at which the given node is inserted.
node	an XMLNode to be inserted as `n`th child.

Returns: a reference to the newly-inserted child node.

bool XMLToken::isAttributesEmpty ( ) const

inherited

Returns true if this token has no attributes.

Returns: true if the list of attributes on XMLToken object is empty, false otherwise.

bool XMLToken::isElement ( ) const

inherited

Returns true if this token represents an XML element.

This generic predicate returns true if the element is either a start or end tag, and false if it's a text object. The related methods XMLToken:isStart(), XMLToken::isEnd() and XMLToken::isText() are more specific predicates.

Returns: true if this XMLToken object represents an XML element, false otherwise.

See also: isStart(); isEnd(); isText()

bool XMLToken::isEnd ( ) const

inherited

Returns true if this token represents an XML end element.

Returns: true if this XMLToken object represents an XML end element, false otherwise.

See also: isStart(); isElement(); isText()

bool XMLToken::isEndFor ( const XMLToken & element ) const

inherited

Returns true if this token represents an XML end element for a particular start element.

Parameters

element XMLToken, the element with which the current object should be compared to determined whether the current object is a start element for the given one.

Returns: true if this XMLToken object represents an XML end tag for the start tag given by element, false otherwise.

See also: isElement(); isStart(); isEnd(); isText()

bool XMLToken::isEOF ( ) const

inherited

Returns true if this token is an end of file marker.

Returns: true if this XMLToken object represents the end of the input, false otherwise.

See also: setEOF()

bool XMLToken::isNamespacesEmpty ( ) const

inherited

Returns true if there are no namespaces declared on this token.

Returns: true if the XMLNamespaces object stored in this XMLToken token is empty, false otherwise.

bool XMLToken::isStart ( ) const

inherited

Returns true if this token represents an XML start element.

Returns: true if this XMLToken is an XML start element, false otherwise.

See also: isElement(); isEnd(); isText()

bool XMLToken::isText ( ) const

inherited

Returns true if this token represents an XML text element.

Returns: true if this XMLToken is an XML text element, false otherwise.

See also: isElement(); isStart(); isEnd()

XMLNode & XMLNode::operator= ( const XMLNode & rhs )

Assignment operator for XMLNode.

Parameters

rhs	the XMLNode object whose values are used as the basis of the assignment.

int XMLToken::removeAttr ( int n )

inherited

Removes the nth attribute from the XML element represented by this token.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

n	an integer the index of the resource to be deleted.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

The value LIBSBML_INDEX_EXCEEDS_SIZE is returned if there is no attribute on this element at the given index n.

See also: getAttrIndex(const XMLTriple& triple) const; getAttrIndex(const std::string& name, const std::string& uri) const; getAttributesLength()

int XMLToken::removeAttr	(	const std::string &	name,
		const std::string	uri = `""`
	)

inherited

Removes an attribute from the XML element represented by this token.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

name	a string, the name of the attribute to be removed.
uri	a string, the XML namespace URI of the attribute to be removed.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

The value LIBSBML_INDEX_EXCEEDS_SIZE is returned if there is no attribute on this element with the given name (and uri if specified).

See also: hasAttr(const std::string name, const std::string uri) const

int XMLToken::removeAttr ( const XMLTriple & triple )

inherited

Removes an attribute from the XML element represented by this token.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

triple an XMLTriple describing the attribute to be removed.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

The value LIBSBML_INDEX_EXCEEDS_SIZE is returned if there is no attribute on this element matching the properties of the given triple.

See also: hasAttr(const XMLTriple& triple) const

XMLNode * XMLNode::removeChild ( unsigned int n )

Removes the nth child of this XMLNode and returns the removed node.

It is important to keep in mind that a given XMLNode may have more than one child. Calling this method erases all existing references to child nodes after the given position n. If the index n is greater than the number of child nodes in this XMLNode, this method takes no action (and returns NULL).

Parameters

n	an integer, the index of the node to be removed.

Returns: the removed child, or NULL if n is greater than the number of children in this node.

Note: The caller owns the returned node and is responsible for deleting it.

int XMLNode::removeChildren ( )

Removes all children from this node.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

LIBSBML_OPERATION_SUCCESS

int XMLToken::removeNamespace ( int index )

inherited

Removes the nth XML namespace declaration.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

index an integer, the position of the namespace to be removed. The position in this context refers to the position of the namespace in the XMLNamespaces object stored in this XMLToken object. Callers can use one of the getNamespace___() methods to find the index number of a given namespace.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

See also: getNamespaceIndex(); getNamespaceIndexByPrefix(); getNamespacesLength()

int XMLToken::removeNamespace ( const std::string & prefix )

inherited

Removes an XML namespace declaration having a given prefix.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

prefix a string, the prefix of the namespace to be removed.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

The value LIBSBML_INDEX_EXCEEDS_SIZE is returned if there is no namespace with the given prefix on this element.

See also: getNamespaceIndexByPrefix()

int XMLToken::setAttributes ( const XMLAttributes & attributes )

inherited

Sets the attributes on the XML element represented by this token.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

attributes an XMLAttributes object to be assigned to this XMLToken object, thereby setting the XML attributes associated with this token.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

Note: This function replaces any existing XMLAttributes object on this XMLToken object with the one given by attributes.

int XMLToken::setCharacters ( const std::string & chars )

inherited

Sets the characters for this XMLToken.

This method only makes sense for XMLToken objects that contains text. If this method is called on a token that represents an XML start or end tag, it will return the code LIBSBML_OPERATION_FAILED.

Parameters

chars string, characters to append to the text of this token.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

See also: isText(); isElement()

int XMLToken::setEnd ( )

inherited

Declares that this token represents an XML element end tag.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

See also: isStart(); isEnd()

Examples:: addingEvidenceCodes_2.cpp.

int XMLToken::setEOF ( )

inherited

Declares that this token is an end-of-file/input marker.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

See also: isEOF()

int XMLToken::setNamespaces ( const XMLNamespaces & namespaces )

inherited

Sets the XML namespaces on this XML element.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

namespaces the XMLNamespaces object to be assigned to this XMLToken object.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

Note: This function replaces any existing XMLNamespaces object on this XMLToken object with the new one given by namespaces.

int XMLToken::setTriple ( const XMLTriple & triple )

inherited

Sets the name, namespace prefix and namespace URI of this token.

: This operation only makes sense for XML start elements. This method will return LIBSBML_INVALID_XML_OPERATION if this XMLToken object is not an XML start element.

Parameters

triple the new XMLTriple to use for this XMLToken object. If this XMLToken already had an XMLTriple object stored within it, that object will be replaced.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

string XMLToken::toString ( )

inherited

Prints a string representation of the underlying token stream.

This method is intended for debugging purposes.

Returns: a text string representing this XMLToken object.

std::string XMLNode::toXMLString ( ) const

Returns a string representation of this XMLNode.

Returns: a string derived from this XMLNode.

int XMLToken::unsetEnd ( )

inherited

Declares that this token no longer represents an XML start/end element.

Returns

integer value indicating success/failure of the function. The value is drawn from the enumeration OperationReturnValues_t. The possible values returned by this function are:

Detailed Description

Conversion between an XML string and an XMLNode

Public Member Functions

Static Public Member Functions

Constructor & Destructor Documentation

Member Function Documentation