Ruby shell filter to sort space/newline delimited strings based on the floating point values extracted from the strings

fpsort.rb

#!/usr/bin/env ruby
# Scan space or newline delimited string list read from standard input for
# floating point values and sort it based on to the numbers found
def s2fp(s) ((s =~ /[-+]?[0-9]*\.?[0-9]+(e[-+]?[0-9]+)?/i).nil? ? 0 : $&).to_f end
puts ARGF.readlines.collect{|s| s.split}.flatten.sort{|a,b| s2fp(a) <=> s2fp(b)}