method

each

v1_8_7_72 - Show latest stable - 0 notes - Class: REXML::XPath

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

Iterates 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| ... }

Show source

# File lib/rexml/xpath.rb, line 45
                def XPath::each element, path=nil, namespaces=nil, variables={}, &block
      raise "The namespaces argument, if supplied, must be a hash object." unless namespaces.nil? or namespaces.kind_of?(Hash)
      raise "The variables argument, if supplied, must be a hash object." unless variables.kind_of?(Hash)
                        parser = XPathParser.new
                        parser.namespaces = namespaces
                        parser.variables = variables
                        path = "*" unless path
                        element = [element] unless element.kind_of? Array
                        parser.parse(path, element).each( &block )
                end

each

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