nice. My first attempt was trying to do it like that, but i started with something like: 
/\x26\x67(.(?!\x26\x67)){7}./s

[download]
which doesn't work for the case of consectutive sequences.. i just didn't think of putting the look-ahead behind the dot :)

In reply to Re^3: regex for negating a sequence by davidrw
in thread regex for negating a sequence by spurperl

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