first(element, path=nil, namespaces=nil, variables={})
Class Public methods
Finds and returns the first node that matches the supplied xpath.
element
The context element
path
The xpath to search for. If not supplied or nil, returns the first node
matching '*'.
namespaces
If supplied, a Hash which defines a namespace
mapping.
variables
If supplied, a Hash which maps $variables in the
query to values. This can be used to avoid XPath
injection attacks or to automatically h