Method: Fable::InkList#list_with_subrange

Defined in:
lib/fable/ink_list.rb

#list_with_subrange(min_bound, max_bound) ⇒ Object

Returns a sublist with the elements given in the minimum & maximum bounds. The bounds can either be ints, which are indicies into the entire (sorted) list, or they can be InkLists themsevles. These are intended to be single-item lists, so you can specify the upper & lower bounds. If you pass in multi-item lists, it’ll use the minimum and maximum items in those lists, respectively.



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# File 'lib/fable/ink_list.rb', line 367

def list_with_subrange(min_bound, max_bound)
  return self.class.new if self.list.empty?

  ordered = self.ordered_items

  min_value = 0
  max_value = Float::INFINITY

  if min_bound.is_a?(Numeric)
    min_value = min_bound
  elsif min_bound.is_a?(InkList) && !min_bound.list.empty?
    min_value = min_bound.min_item[1]
  end

  if max_bound.is_a?(Numeric)
    max_value = max_bound
  elsif max_bound.is_a?(InkList) && !max_bound.list.empty?
    max_value = max_bound.max_item[1]
  end

  sublist = self.class.new
  sublist.set_initial_origin_names(origin_names)
  ordered.each do |item, int_value|
    if int_value >= min_value && int_value <= max_value
      sublist.list[item] = int_value
    end
  end

  sublist
end