this post was submitted on 31 Oct 2024
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Programmer Humor

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Oh boy what a beautiful regex. I'm sure it does something logical and easy to understand. (lemmy.world)
submitted 3 weeks ago* (last edited 3 weeks ago) by NateNate60@lemmy.world to c/programmerhumor@lemmy.ml
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^.?$|^(..+?)\1+$

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

https://www.youtube.com/watch?v=5vbk0TwkokM

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