Fredrik Lundh wrote: > Magnus Lycka wrote: > r"(\d\d[A-Z]{3}\d\d) (\d\d[A-Z]{3}\d\d) (?=[1234567])(1?2?3?4?5?6?7?)" > Thanks a lot. (I knew about {3} of course, I was in a hurry when I posted since I was close to missing my train...)