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

In XML: Tools for Parsing and Generating XML Within R and S-Plus

Frequency table of names of elements and attributes in XML content

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"))

XML documentation built on June 25, 2024, 5:06 p.m.