Functional programming babysteps :)

stringit.rb

# Functional programming babysteps :)
# This Proc returns a "stringified" version of the object you passed it.
# Example:
#
# h = Hash[1,2,3,4,5,[8,9,{:age => 90},[[[[60,{"a" => "gho"}]]],{[:what, 0] => [4.0 => 88.7]}]]]4.0 => 88.7]}]]]
# => {1=>2, 3=>4, 5=>[8, 9, {:age=>90}, [[[[60, {"a"=>"gho"}]]], {[:what, 0]=>[{4.0=>88.7}]}]]}
# stringit[h]
#=> {"1"=>"2", "3"=>"4", "5"=> ["8","9",{"age"=>"90"},[[[["60", {"a"=>"gho"}]]], {["what", "0"]=>[{"4.0"=>"88.7"}]}]]}

stringit = Proc.new do |v|
  case v
  when Array
    r = []
    v.each do |i|
      r << stringit[i]
    end
    r
  when Hash
    r = Hash.new
    v.each do |key, value|
      r.store(stringit[key], stringit[value])
    end
    r
  else
    v.to_s
  end
end