each(element, path=nil, namespaces=nil, variables={}) public

Itterates over nodes that match the given path, calling the supplied block with the match.

element:The context element
path:The xpath to search for. If not supplied or nil, defaults to ’*’
namespaces:If supplied, a Hash which defines a namespace mapping
 XPath.each( node ) { |el| ... }
 XPath.each( node, '/*[@attr='v']' ) { |el| ... }
 XPath.each( node, 'ancestor::x' ) { |el| ... }
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