# Encapsules the concept of a position inside a string. 
#
class Parslet::Position
  attr_reader :bytepos

  include Comparable

  def initialize string, bytepos
    @string = string
    @bytepos = bytepos
  end

  def charpos
    @string.byteslice(0, @bytepos).size
  end

  def <=> b
    self.bytepos <=> b.bytepos
  end
end