Class: Traverse::XML

Inherits:
Object
  • Object
show all
Defined in:
lib/traverse.rb

Instance Method Summary collapse

Constructor Details

#initialize(document) ⇒ XML

Returns a new instance of XML.



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# File 'lib/traverse.rb', line 51

def initialize document
  setup_underlying_document document

  if text_node?
    define_singleton_method "text" do
      @document.children.first.content
    end
  end

  singular_children.group_by(&:name).each do |name, children|
    if children.count == 1
      child = children.first
      if text_only_node? child
        define_singleton_method name do
          child.content.strip
        end
      else
        define_singleton_method name do 
          XML.new child
        end
      end
    else
      define_singleton_method name.pluralize do
        children.map do |child|
          if text_only_node? child
            child.content.strip
          else
            XML.new child
          end
        end
      end
    end
  end

  plural_children.each do |pluralized_child|
    define_singleton_method pluralized_child.name do
      pluralized_child.children.reject do |baby|
        baby.class == Nokogiri::XML::Text
      end.map { |child| XML.new child }
    end
  end

end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(m, *args, &block) ⇒ Object (private) 



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# File 'lib/traverse.rb', line 111

def method_missing m, *args, &block
  self[m] or super
end

Instance Method Details

#[](attr) ⇒ Object 



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# File 'lib/traverse.rb', line 95

def [] attr
  @document.get_attribute attr
end

#_attributes_ ⇒ Object 



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# File 'lib/traverse.rb', line 99

def _attributes_
  name_value_pairs = @document.attributes.map do |name, attribute|
    [name, attribute.value]
  end
  Hash[ name_value_pairs ]
end

#_children_ ⇒ Object 



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# File 'lib/traverse.rb', line 106

def _children_
  real_children.map { |child| XML.new child }
end