#!/usr/bin/env ruby

require 'benchmark'

n = 2000000
line = 's tupBel1.scaffold_3803.1-85889    33686 61 +    85889 ttcaggaagggggcccaaaacgcttgagtggtcagctctta-ttttgcgtttactggatggg'

Benchmark.bmbm do |x|
  x.report("basic String#split") do
    n.times do
      parts = line.split
    end
  end
  x.report("regex split") do
    n.times do
      parts = line.split(/\s+/)
    end
  end
  x.report("regex fields") do
    n.times do
      if m = /^s\s+(\S+)\s+(\d+)\s+(\d+)\s+([+-])\s+(\d+)\s+(\S+)/.match(line)
        parts = m.captures
      end
    end
  end
  x.report("regex fields") do
    n.times do
      if m = /^s\s+(\S+)\s+(\d+)\s+(\d+)\s+([+-])\s+(\d+)\s+(\S+)/.match(line)
        parts = m.captures
      end
    end
  end
end