XML (version 3.1-1)

findXInclude: Find the XInclude node associated with an XML node

Description

This function is used to traverse the ancestors of an internal XML node to find the associated XInclude node that identifies it as being an XInclude'd node. Each top-level node that results from an include href=... in the libxml2 parser is sandwiched between nodes of class XMLXIncludeStartNode and XMLXIncludeStartNode. These are the sibling nodes.

Usage

findXInclude(x, asNode = FALSE)

Value

• Either NULL if there was no node of class XMLXIncludeStartNode found. Otherwise, if asNode is TRUE, that XMLXIncludeStartNode node is returned, or alternatively its attribute character vector.

References

www.libxml.org

See Also

xmlParse and the xinclude parameter.

Examples

f = system.file("exampleData", "functionTemplate.xml", package = "XML")

 cat(readLines(f), "")

 doc = xmlParse(f)

  # Get all the para nodes
  # We just want to look at the 2nd and 3rd which are repeats of the
  # first one.
 a = getNodeSet(doc, "//author")
 findXInclude(a[[1]])

 i = findXInclude(a[[1]], TRUE)
 top = getSibling(i)

   # Determine the top-level included nodes
 tmp = getSibling(i)
 nodes = list()
 while(!inherits(tmp, "XMLXIncludeEndNode")) {
   nodes = c(nodes, tmp)
   tmp = getSibling(tmp)
 }