Nokogiri: Select content between element A and B

Question

What\'s the smartest way to have Nokogiri select all content between the start and the stop element (including start-/stop-element)?

Check example code below to unde

Answer 1

A way-too-smart oneliner which uses recursion:

def collect_between(first, last)
  first == last ? [first] : [first, *collect_between(first.next, last)]
end

An iterative solution:

def collect_between(first, last)
  result = [first]
  until first == last
    first = first.next
    result << first
  end
  result
end

EDIT: (Short) explanation of the asterix

It's called the splat operator. It "unrolls" an array:

array = [3, 2, 1]
[4, array]  # => [4, [3, 2, 1]]
[4, *array] # => [4, 3, 2, 1]

some_method(array)  # => some_method([3, 2, 1])
some_method(*array) # => some_method(3, 2, 1)

def other_method(*array); array; end
other_method(1, 2, 3) # => [1, 2, 3]