NateNate60@lemmy.world to Programmer Humor@lemmy.ml · edit-214 hours agoOh boy what a beautiful regex. I'm sure it does something logical and easy to understand.lemmy.worldimagemessage-square62fedilinkarrow-up1199arrow-down14file-text
arrow-up1195arrow-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-214 hours agomessage-square62fedilinkfile-text
^.?$|^(..+?)\1+$ <answer> Matches strings of any character repeated a non-prime number of times https://www.youtube.com/watch?v=5vbk0TwkokM
minus-squarethevoidzero@lemmy.worldlinkfedilinkarrow-up1·edit-23 hours ago\1 is group 1 which is inside (), so second part is repeated 2 or more times of 2 or more char.
\1 is group 1 which is inside
(), so second part is repeated 2 or more times of 2 or more char.