Class: Gumbo::Node

Inherits:
Object
  • Object
show all
Defined in:
ext/ruby_gumbo_ext.c,
lib/gumbo/node.rb

Direct Known Subclasses

Document, Element, Text

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#parent ⇒ Object (readonly)

#parse_flags ⇒ Object (readonly)

#type ⇒ Object (readonly)

Instance Method Details

#dump_tree(output = $stdout) ⇒ Object

Recursively dump an indented representation of a HTML tree to output. Text nodes are not printed.



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# File 'lib/gumbo/node.rb', line 20

def dump_tree(output = $stdout)
  process_node = lambda do |node, indent|
    return unless node.type == :document || node.type == :element

    output.write (" " * indent)

    if node.type == :element
      tag = (node.tag == :unknown) ? node.original_tag_name : node.tag.to_s
      attributes = node.attributes.map(&:name)
      output.write "<" + tag.upcase()
      output.write(" " + attributes.join(" ")) unless attributes.empty?
      output.puts ">"

      indent += 2
    end

    for child in node.children
      process_node.call(child, indent)
    end
  end

  process_node.call(self, 0)
end