NateNate60@lemmy.world to Programmer Humor@lemmy.ml · edit-21 day agoOh boy what a beautiful regex. I'm sure it does something logical and easy to understand.lemmy.worldimagemessage-square74fedilinkarrow-up1273arrow-down19file-text
arrow-up1264arrow-down1imageOh boy what a beautiful regex. I'm sure it does something logical and easy to understand.lemmy.worldNateNate60@lemmy.world to Programmer Humor@lemmy.ml · edit-21 day agomessage-square74fedilinkfile-text
^.?$|^(..+?)\1+$ <answer> Matches strings of any character repeated a non-prime number of times https://www.youtube.com/watch?v=5vbk0TwkokM
minus-squareShaunaTheDead@fedia.iolinkfedilinkarrow-up2·11 hours agoIt matches for non-primes and doesn’t match for primes.
It matches for non-primes and doesn’t match for primes.