require 'wparser/parse'

module Inlines
  class UnderLine < Parse
    def self.parse line
      @result = line.gsub!(/(?:(?!\\\+)(^|.)\+)(.+?)(?:(?!\\\+)(.)\+)/){|s|
        "#$1<U>#$2#$3</U>"
      }
      @result = line.gsub!(/\\\+/, '+')
      super
    end
  end
end