Creates a shallow copy of self.
d = Document.new "<a><b/><b/><c><d/></c></a>" new_a = d.root.clone puts new_a # => "<a/>"
Evaluates to true if whitespace is respected for this element. This is the case if:
Neither :respect_whitespace nor :compress_whitespace has any value
The context has :respect_whitespace set to :all or an array containing the name of this element, and :compress_whitespace isn’t set to :all or an array containing the name of this element.
The evaluation is tested against expanded_name, and so is namespace sensitive.
Evaluates to the URI for a prefix, or the empty string if no such namespace is declared for this element. Evaluates recursively for ancestors. Returns the default namespace, if there is one.
the prefix to search for. If not supplied, returns the default namespace if one exists
the namespace URI as a String, or nil if no such namespace exists. If the namespace is undefined, returns an empty string
doc = Document.new("<a xmlns='1' xmlns:y='2'><b/><c xmlns:z='3'/></a>") b = doc.elements['//b'] b.namespace # -> '1' b.namespace("y") # -> '2'
Returns true if there are no Element children, false otherwise
Private helper class. Removes quotes from quoted strings
Given an array of nodes it filters the array based on the path. The result is that when this method returns, the array will contain elements which match the path
@return true if the Source is exhausted
FIXME This probably won’t work properly
Finds and returns the first node that matches the supplied xpath.
The context element
The xpath to search for. If not supplied or nil, returns the first node matching ‘*’.
If supplied, a Hash which defines a namespace mapping.
If supplied, a Hash which maps $variables in the query to values. This can be used to avoid XPath injection attacks or to automatically handle escaping string values.
XPath.first( node )
XPath.first( doc, "//b"} )
XPath.first( node, "a/x:b", { "x"=>"http://doofus" } )
XPath.first( node, '/book/publisher/text()=$publisher', {}, {"publisher"=>"O'Reilly"})