module Hpricot
  class Elements
    def strip
      each { |x| x.strip }
    end
    
    def strip_attributes(safe=[], patterns={})
      each { |x| x.strip_attributes(safe, patterns) }
    end
  end

  class Elem
    def strip
      parent.replace_child self, Hpricot.make(inner_html) unless 
        parent.nil?
    end

    def strip_attributes(safe=[], patterns={})
      attributes.each { |atr|
          pat = patterns[atr[0].to_sym] || ''
          remove_attribute(atr[0]) unless safe.include?(atr[0]) &&
            atr[1].match(pat)
      } unless attributes.nil?
    end
  end
end