extract xy from svg path

svg_path_extaract_xy.rb

def hoge s
  hoges = s.scan(/[A-Za-z]|-?\d*\.\d*|\d+/).map{|a|a =~ /[\d.]/ ? a.to_f : a}
  p hoges
  x=y=0
  out=[]
  while hoges.first
    begin
    c = hoges.shift
    case c
    when 'M'
      x, y = hoges.shift(2)
      out.push p [x, y]
    when 'C', 'S'
      hoges.shift(c == 'C' ? 4 : 2)
      x, y = hoges.shift(2)
      out.push p [x, y]
    when 'c', 's'
      while hoges[0].is_a? Numeric
        hoges.shift(c == 'c' ? 4 : 2)
        dx, dy = hoges.shift(2)
        x += dx
        y += dy
        out.push p [x, y]
      end
    when 'a'
      while hoges[0].is_a? Numeric
        hoges.shift(5)
        dx, dy = hoges.shift(2)
        x += dx
        y += dy
        out.push p [x, y]
      end
    when 'z'
    else
      raise c.to_s
    end
  rescue => e;binding.irb;end
  end
  puts out.map{|a|'L'+a.join(',')}.join.sub('L', 'M')
end