gistfile1

require 'logger'

class ParseError < RuntimeError; end

class Parser
  def initializee
    @logger = Logger.new(STDOUT)
    $rules = Hash.new
    @start = nil
    @tokens = ["+", "-", "*", "/"]
    @input = Array.new
    @output = Array.new
  end
    
  def tokenize(str)
    output = []
    until str.empty?
      output << str[/\w+/]
      str.sub(/\w+/, '')
    end
    output
  end
end

parser = Parser.new
parser.tokenize('1 + 2')