Example of the weird magic that makes plagelao's kata work without working :-)

Plagelao's kata

# Open irb on the kata directory


ruby-1.9.2-p0 > require "./string_calculator_spec"
 => true 
ruby-1.9.2-p0 > s = Separator.new("//[**][+++]\n")
 => /,|
|["**|+++"]/ 
ruby-1.9.2-p0 > #Ojo al último patrón! Eso matchea cualquier caracter dentro de []
ruby-1.9.2-p0 >   "1++2***3".split(s)
 => ["1", "", "2", "", "", "3"] 
ruby-1.9.2-p0 > #Separa el primer símbolo, procesa el resto como cadena vacía
ruby-1.9.2-p0 > "10++20***30".split(s)
 => ["10", "", "20", "", "", "30"] 
ruby-1.9.2-p0 > #Idem