From: Phrogz <phrogz@...>
Date: 2007-10-31T13:00:02+09:00
Subject: Re: Why, oh, why, little regexp?

On Oct 30, 9:30 pm, Daniel Waite <rabbitb...@gmail.com> wrote:
> That's clever use of ?a, which I recognize but have never seen anyone
> use before. Thanks for the example!

My current favorite use for the ?x syntax is converting single-
character strings representing digits into their integer form:

  # Jenny jenny, who can I turn to?
  irb(main):006:0> "8675309".each_byte{ |x| p x - ?0 }
  8
  6
  7
  5
  3
  0
  9