XML (version 3.98-1.9)

append.xmlNode: Add children to an XML node

Description

This appends one or more XML nodes as children of an existing node.

Usage

append.XMLNode(to, ...)
append.xmlNode(to, ...)

Arguments

to

the XML node to which the sub-nodes are to be added.

…

the sub-nodes which are to be added to the to node. If this is a list of XMLNode objects (e.g. create by a call to lapply), then that list is used.

Value

The original to node containing its new children nodes.

References

http://www.w3.org/XML, http://www.jclark.com/xml, http://www.omegahat.net

See Also

[<-.XMLNode [[<-.XMLNode [.XMLNode [[.XMLNode

Examples

  # Create a very simple representation of a simple dataset.
  # This is just an example. The result is
   # <data numVars="2" numRecords="3">
   # <varNames>
   #  <string>
   #   A
   #  </string>
   #  <string>
   #   B
   #  </string>
   # </varNames>
   # <record>
   #  1.2 3.5
   # </record>
   # <record>
   #  20.2 13.9
   # </record>
   # <record>
   #  10.1 5.67
   # </record>
   # </data>


 n = xmlNode("data", attrs = c("numVars" = 2, numRecords = 3))
 n = append.xmlNode(n, xmlNode("varNames", xmlNode("string", "A"), xmlNode("string", "B")))
 n = append.xmlNode(n, xmlNode("record", "1.2 3.5"))
 n = append.xmlNode(n, xmlNode("record", "20.2 13.9"))
 n = append.xmlNode(n, xmlNode("record", "10.1 5.67"))

 print(n)



   tmp <-  lapply(references, function(i) {
                                  if(!inherits(i, "XMLNode"))
                                    i <- xmlNode("reference", i)
                                  i
                              })

   r <- xmlNode("references")
   r[["references"]] <- append.xmlNode(r[["references"]], tmp)