Oh boy what a beautiful regex. I’m sure it does something logical and easy to understand.
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Oh boy what a beautiful regex. I’m sure it does something logical and easy to understand.
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^.?$|^(..+?)\1+$

<answer>

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

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

@NateNate60@lemmy.world
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3•4M

They said—

A line with exactly 0 or 1 characters, or a line with a sequence of 1 or 3 or more characters, repeated at least twice

Note—

…or a line with a sequence of 1 or 3 or more characters, repeated at least twice

It should be—

…or a line with a sequence of 2 or more characters, repeated at least twice

The regex in the post will match “abab”. Their original description (line 2 of this comment) will not match “abab”.

@MummifiedClient5000@feddit.dk
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4•4M

I agree, you’re right about the part after the pipe and RegalPotoo’s explanation was not entirely correct.

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