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Re: A regex that only matches at offset that are multiples of a given N?

by ikegami (Pope)
on Feb 14, 2013 at 07:55 UTC ( #1018696=note: print w/replies, xml ) Need Help??

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  1. or download this
    /\G(?:.{4})*(?=fred(....))/sg
    
  2. or download this
    /fred(?(?{ pos % 4 != 0 })(?!))(....)/sg
    

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