| xmlNode {XML} | R Documentation |
These functions allow one to create XML nodes as are created in C code when reading XML documents. Trees of XML nodes can be constructed and integrated with other trees generated manually or with via the parser.
xmlNode(name, ..., attrs=NULL, namespace="") xmlTextNode(value, namespace="", entities = XMLEntities) xmlPINode(sys, value, namespace="") xmlCDataNode(...) xmlCommentNode(text)
name |
The tag or element name of the XML node. This is what appears
in the elements as <name> .. </name> |
... |
The children nodes of this XML node.
These can be objects of class XMLNode
or arbitrary values that will be converted to a string
to form an XMLTextNode object. |
attrs |
A named character vector giving the name, value pairs of attributes for this XML node. |
value |
This is the text that is to be used when forming
an XMLTextNode. |
namespace |
The XML namespace identifier for this node. |
sys |
the name of the system for which the processing instruction
is targeted. This is the value that appears in the
<?sys value?> |
text |
character string giving the contents of the comment. |
entities |
a character vector giving the mapping from special characters to their entity equivalent. This provides the character-expanded entity pairings of 'character = entity' , e.g. '<' = "lt" which are used to make the content valid XML so that it can be used within a text node. The text searched sequentially for instances of each character in the names and each instance is replaced with the corresponding '&entity;' |
An object of class XMLNode.
In the case of xmlTextNode,
this also inherits from XMLTextNode.
The fields or slots that objects
of these classes have
include
name, attributes, children and namespace.
However, one should
the accessor functions
xmlName,
xmlAttrs,
xmlChildren
and
xmlNamespace
Duncan Temple Lang
http://www.w3.org/XML, http://www.jclark.com/xml, http://www.omegahat.org
a <- xmlNode("arg", attrs = c(default="T"),
xmlNode("name", "foo"), xmlNode("defaultValue","1:10"))