this post was submitted on 31 Oct 2024
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Programmer Humor

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^.?$|^(..+?)\1+$

Matches strings of any character repeated a non-prime number of times

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[–] [email protected] 4 points 4 months ago (1 children)

“abbabba”

“abbabba” doesn't match the original regex but “abbaabba” does

[–] fubo 3 points 4 months ago* (last edited 4 months ago)

Good catch! Typo. Fixed.