class Hash

Public Instance Methods

pair_at_chain(chain) click to toggle source
# File lib/hash_extension.rb, line 18
def pair_at_chain(chain)
  chain = chain.dup
  chain.pop
  return self.value_at_chain(chain)
end
recurse(include_root=false, depth=[], &block) click to toggle source
# File lib/hash_extension.rb, line 24
def recurse(include_root=false, depth=[], &block)
  self.each_pair { |k,v|
    if v.is_a? Hash
      if include_root
        block.call(depth + [k], v)
      end
      depth.push k
      v.recurse(include_root, depth, &block)
    else
      block.call(depth + [k], v)
      #return "#{depth + [k]}: #{v.inspect}"
    end
  }
  depth.pop
end
value_at_chain(chain) click to toggle source
# File lib/hash_extension.rb, line 2
def value_at_chain(chain)
  current = self
  chain.each do |key|
    if current.is_a? Hash and current.has_key? key
      current = current[key]
      if current.is_a? Array
        current = current.last
      end
    else
      current = nil
      break
    end
  end
  return current
end