From: Phrogz <gavin@...>
Date: 2006-07-13T04:30:05+09:00
Subject: Re: Help with a regexp

require 'strscan'
s = StringScanner.new( "3:ab23:cat5:sheep" )
words = []
until s.eos?
  if digits = s.scan( /\d+/ )
    digits = digits.to_i
    s.pos += 1
    words << s.peek( digits )
    s.pos += digits
  else
    p words
    abort "Couldn't find digits for: #{s.rest}"
  end
end
p words
#=> ["ab2", "cat", "sheep"]