# File Reduktion.rb, line 105
        def Rule.from_Yacc2(input)
                output = ""
                zeilen = input.split("\n")
                name = zeilen[0].split[1]
                zeilen.delete_at(0)
                output += name + " -> "
                # Erzeugung der Alternativen
                zeilen.each do |zeile|
                        optoken = zeile.split[0]
                        operator = zeile.split[1]
                        if (optoken == "left" || optoken == "right" || optoken == "none")
                                output += name + " " + operator + " " + name + "\n" + " " * name.length + " | "
                        elsif optoken == "pre"
                                output += operator + " " + name + " " + "\n" + " " * name.length + " | "
                        elsif optoken == "post"
                                output += name + " " + operator + " " + "\n" + " " * name.length + " | "
                        end
                end
                # Letzte Zeile
                atome = zeilen[zeilen.size-1].split(/,\s|\s/)
                atome.delete_at(0)
                atome.each do |atom|
                        output += atom + "\n" + " " * name.length + " | "
                end
                # Korrektur der letzten Zeile
                output.strip.chop.strip
        end