kata 4: data munging (part 2)

kata4_2.rb

data = Array.new
File.foreach("football.dat") { |line|
  if line =~ /^\s+[0-9]+[.]\s([a-zA-Z_]+)\s+[0-9]+\s+[0-9]+\s+[0-9]+\s+[0-9]+\s+([0-9]+)\s+-\s+([0-9]+)/ then
    data << { :team => $1, :goal_diff => (Integer($2) - Integer($3)).abs }
  end
}

puts data.min { |a,b| a[:goal_diff] <=> b[:goal_diff] }