module Hpricot::Container::Trav

Use nodes_at to include those nodes.
Like the other "sibling" methods, this doesn't find text and comment nodes.

ele.siblings_at(0, 5..6) # the current element and two others
ele.siblings_at(1, 5, 7) # gets three elements at offsets below the current element
ele.siblings_at(-3..-1, 1..3) # gets three elements before and three after

This method accepts ranges and sets of numbers.

to this element.
Puts together an array of neighboring sibling elements based on their proximity

def siblings_at(*pos)
  sib = parent.containers
  i, si = 0, sib.index(self)
  Elements[*
    sib.select do |x|
      sel = case i - si when *pos
              true
            end
      i += 1
      sel
    end
  ]
end