XML (version 3.1-1)

xmlAttrs: Get the list of attributes of an XML node.

Description

This returns a named character vector giving the name-value pairs of attributes of an XMLNode object which is part of an XML document.

Usage

xmlAttrs(node, ...)
 'xmlAttrs<-'(node, append = TRUE, suppressNamespaceWarning = getOption("suppressXMLNamespaceWarning", FALSE), value)

Value

• A named character vector, where the names are the attribute names and the elements are the corresponding values. This corresponds to the (attr, "value") pairs in the XML tag

References

http://www.w3.org

See Also

xmlChildren, xmlSize, xmlName

Examples

fileName <- system.file("exampleData", "mtcars.xml", package="XML") 
 doc <- xmlTreeParse(fileName)

 xmlAttrs(xmlRoot(doc))

 xmlAttrs(xmlRoot(doc)[["variables"]])


 doc <- xmlTreeParse(fileName, useInternalNodes = TRUE)
 d = xmlRoot(doc)

 xmlAttrs(d)
 xmlAttrs(d) <- c(name = "Motor Trend fuel consumption data",
                  author = "Motor Trends")
 xmlAttrs(d)

   # clear all the attributes and then set new ones.
 removeAttributes(d)
 xmlAttrs(d) <- c(name = "Motor Trend fuel consumption data",
                  author = "Motor Trends")


     # Show how to get the attributes with and without the prefix and
     # with and without the URLs for the namespaces.
  doc = xmlParse('<doc xmlns:r="http://www.r-project.org">
                    <el r:width="10" width="72"/>
                    <el width="46"/>
                    </doc>')

  xmlAttrs(xmlRoot(doc)[[1]], TRUE, TRUE)
  xmlAttrs(xmlRoot(doc)[[1]], FALSE, TRUE)
  xmlAttrs(xmlRoot(doc)[[1]], TRUE, FALSE)
  xmlAttrs(xmlRoot(doc)[[1]], FALSE, FALSE)