From: Peter Hickman <peterhickman386@...>
Date: 2010-09-06T22:40:14+09:00
Subject: Odd functional programming question

Ok this is probably not really functional programming but I was just
noodling about with Ruby when I thought "it would be quite nice if I
could do X". In this case X is as follows:

def X(text, action)
  x.action
end

>> X("abcedf", size)
=> 6
>> X("abcdef", upcase)
=> "ABCDEF"
>> X("abcdef", gsub(/[aeiouy]/, '_'))
=> "_bcd_f"

Quite clearly this does not actually work, otherwise I wouldn't be
asking. But is there some way in Ruby to do something like this?