dtdElementValidEntry: Determines whether an XML element allows a particular type of...
In cosmicexplorer/xmlr: Tools for parsing and generating XML within R and S-Plus.

Description Usage Arguments Details Value Author(s) References See Also Examples

This tests whether name is a legitimate tag to use as a direct sub-element of the element tag according to the definition of the element element in the specified DTD. This is a generic function that dispatches on the element type, so that different version take effect for XMLSequenceContent, XMLOrContent, XMLElementContent.

1	dtdElementValidEntry(element, name, pos=NULL)

`element`	The `XMLElementDef` defining the tag in which we are asking whether the sub-element can be used.
`name`	The name of the sub-element about which we are querying the list of sub-tags within `element`.
`pos`	An optional argument which, if supplied, queries whether the `name` sub-element is valid as the `pos`-th child of `element`.

This is not intended to be called directly, but indirectly by the dtdValidElement function.

Logical value indicating whether the sub-element can appear in an element tag or not.

Duncan Temple Lang

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

parseDTD, dtdValidElement, dtdElement

 dtdFile <- system.file("exampleData", "foo.dtd",package="XML")
 dtd <- parseDTD(dtdFile) 
 
  dtdElementValidEntry(dtdElement("variables",dtd), "variable")