xmlElementSummary: Frequency table of names of elements and attributes in XML...

In cosmicexplorer/xmlr: Tools for parsing and generating XML within R and S-Plus.

Description

This function is used to get an understanding of the use of element and attribute names in an XML document. It uses a collection of handler functions to gather the information via a SAX-style parser. The distribution of attribute names is done within each "type" of element (i.e. element name)

Usage

xmlElementSummary(url, handlers = xmlElementSummaryHandlers(url))

Arguments

url	the source of the XML content, e.g. a file, a URL, a compressed file, or a character string
handlers	the list of handler functions used to collect the information. These are passed to the function xmlEventParse as the value for the handlers parameter.

Value

A list with two elements

nodeCounts	a named vector of counts where the names are the (XML namespace qualified) element names in the XML content
attributes	a list with as many elements as there are elements in the nodeCounts element of the result. Each element of this sub-list gives the frequency counts for the different attributes seen within the XML elements with that name.

Author(s)

Duncan Temple Lang

See Also

xmlEventParse

Examples

  xmlElementSummary(system.file("exampleData", "eurofxref-hist.xml.gz", package = "XML"))

cosmicexplorer/xmlr documentation built on May 30, 2019, 8:28 a.m.