Class: NokogiriNotepad::NodeFinder

Inherits:
Object
  • Object
show all
Defined in:
lib/nokogiri-notepad/node_finder.rb

Instance Method Summary collapse

Constructor Details

#initialize(doc) ⇒ NodeFinder

Returns a new instance of NodeFinder.



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# File 'lib/nokogiri-notepad/node_finder.rb', line 3

def initialize(doc)
  @doc = doc
end

Instance Method Details

#find_grouped_nodes_at(path, code = nil, tag_name = nil) ⇒ Object 



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# File 'lib/nokogiri-notepad/node_finder.rb', line 29

def find_grouped_nodes_at(path, code=nil, tag_name=nil)
  begin
    nodes = @doc.remove_namespaces!.xpath(render(path))
  rescue NoMethodError
    return nil
  end

  return nil if nodes.empty?

  if !(code || tag_name)
    node = nodes.first || nil
  else
    matching_nodes = nodes.select do |node|
                     return nil if node.nil?
                     node.children.to_s.try(:strip) == code
                   end

    return nil if matching_nodes.first.nil?
    return nil if matching_nodes.first.parent.at(".//#{tag_name}").nil?

    nodes = matching_nodes.map do |node|
      node.parent.at(".//#{tag_name}")
    end
  end
  nodes
end

#find_node_at(path, code = nil, tag_name = nil) ⇒ Object 



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# File 'lib/nokogiri-notepad/node_finder.rb', line 7

def find_node_at(path, code=nil, tag_name=nil)
  begin
    nodes = @doc.remove_namespaces!.xpath(render(path))
  rescue NoMethodError
    return nil
  end

  if !(code || tag_name)
    node = nodes.first || nil
  else
    matching_nodes = nodes.select do |node|
                     return nil if node.nil?
                     node.children.to_s.try(:strip) == code
                   end
    return nil if matching_nodes.first.nil?
    return nil if matching_nodes.first.parent.at(".//#{tag_name}").nil?

    node = matching_nodes.first.parent.at(".//#{tag_name}")
  end
  node
end