Method: Ariel::Node::Structure#extract_from

Defined in:
lib/ariel/node/structure.rb

#extract_from(node) ⇒ Object

Given a Node to apply it’s rules to, this function will create a new node and add it as a child of the given node. It returns an array of the items extracted by the rule



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# File 'lib/ariel/node/structure.rb', line 29

def extract_from(node)
  extractions=[]
  i=0
  return extractions if @ruleset.nil? #no extractions if no rule has been learnt
  @ruleset.apply_to(node.tokenstream) do |newstream|
    if self.node_type==:list_item
      new_node_name=i
      i+=1
    else
      new_node_name=@node_name
    end
    extracted_node = Node::Extracted.new(new_node_name, newstream, self)
    node.add_child extracted_node
    extractions << extracted_node
  end
  return extractions
end