NateNate60@lemmy.world to Programmer Humor@lemmy.ml · edit-218 hours agoOh boy what a beautiful regex. I'm sure it does something logical and easy to understand.lemmy.worldimagemessage-square69fedilinkarrow-up1235arrow-down14file-text
arrow-up1231arrow-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-218 hours agomessage-square69fedilinkfile-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-up1·3 hours agoIt matches for non-primes and doesn’t match for primes.
It matches for non-primes and doesn’t match for primes.