# File lib/html/selector.rb, line 769 769: def only_child(of_type) 770: lambda do |element| 771: # Element must be inside parent element. 772: return false unless element.parent and element.parent.tag? 773: name = of_type ? element.name : nil 774: other = false 775: for child in element.parent.children 776: # Skip text nodes/comments. 777: if child.tag? and (name == nil or child.name == name) 778: unless child.equal?(element) 779: other = true 780: break 781: end 782: end 783: end 784: !other 785: end 786: end