lex() public

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# File lib/irb/ruby-lex.rb, line 261
  def lex
    until (((tk = token).kind_of?(TkNL) || tk.kind_of?(TkEND_OF_SCRIPT)) &&
             !@continue or
             tk.nil?)
      #p tk
      #p @lex_state
      #p self
    end
    line = get_readed
    #      print self.inspect
    if line == "" and tk.kind_of?(TkEND_OF_SCRIPT) || tk.nil?
      nil
    else
      line
    end
  end
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