add_namespace( prefix, uri=nil )
Instance Public methods
Adds a namespace to this element.
prefix
the prefix string, or the namespace URI if
uri is not supplied
uri
the namespace URI. May be nil, in which
prefix is used as the URI
Evaluates to: this Element
a = Element.new("a")
a.add_namespace("xmlns:foo", "bar" )
a.add_namespace("foo", "bar") # shorthand for previous line
a.add_namespace("twiddle")
puts a #-> <a xmlns:foo='bar' xmlns='twiddle'/>