NateNate60@lemmy.world to Programmer Humor@lemmy.ml · edit-27 months agoOh boy what a beautiful regex. I'm sure it does something logical and easy to understand.lemmy.worldexternal-linkmessage-square83linkfedilinkarrow-up1345arrow-down18file-text
arrow-up1337arrow-down1external-linkOh 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-27 months agomessage-square83linkfedilinkfile-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-up2·7 months agoIt matches for non-primes and doesn’t match for primes.
It matches for non-primes and doesn’t match for primes.