333
submitted 5 days ago* (last edited 5 days ago) by NateNate60@lemmy.world to c/programmerhumor@lemmy.ml

^.?$|^(..+?)\1+$

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

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

you are viewing a single comment's thread
view the rest of the comments
[-] Treczoks@lemmy.world 4 points 4 days ago

I have to admit that using CL-PPCRE does not really help me understanding the regexp any better. But this may be because I deal with complex regexps for decades now, and I just read them.

this post was submitted on 31 Oct 2024
333 points (98.0% liked)

Programmer Humor

32365 readers
293 users here now

Post funny things about programming here! (Or just rant about your favourite programming language.)

Rules:

founded 5 years ago
MODERATORS