xmlContainsEntity: Checks if an entity is defined within a DTD.
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

A DTD contains entity and element definitions. These functions test whether a DTD contains a definition for a particular named element or entity.

1 2	xmlContainsEntity(name, dtd) xmlContainsElement(name, dtd)

`name`	The name of the element or entity being queried.
`dtd`	The DTD in which to search for the entry.

See parseDTD for more information about DTDs, entities and elements.

A logical value indicating whether the entry was found in the appropriate list of entitiy or element definitions.

Duncan Temple Lang

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

parseDTD, dtdEntity, dtdElement,

 dtdFile <- system.file("exampleData", "foo.dtd", package="XML")
 foo.dtd <- parseDTD(dtdFile)
 
  # Look for entities.
 xmlContainsEntity("foo", foo.dtd)
 xmlContainsEntity("bar", foo.dtd)

  # Now look for an element
 xmlContainsElement("record", foo.dtd)