NateNate60@lemmy.world to Programmer Humor@lemmy.ml · edit-21 天前Oh boy what a beautiful regex. I'm sure it does something logical and easy to understand.lemmy.worldimagemessage-square75fedilinkarrow-up1271arrow-down16file-text
arrow-up1265arrow-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-21 天前message-square75fedilinkfile-text
^.?$|^(..+?)\1+$ <answer> Matches strings of any character repeated a non-prime number of times https://www.youtube.com/watch?v=5vbk0TwkokM
minus-squareNateNate60@lemmy.worldOPlinkfedilinkarrow-up4arrow-down1·22 小时前It’s a line with a sequence of two or more characters repeated at least twice.
minus-squareMummifiedClient5000@feddit.dklinkfedilinkEnglisharrow-up4·22 小时前Only the part after the pipe character. The pipe character works as an “or” operator. RegalPotoo is right.
minus-squareNateNate60@lemmy.worldOPlinkfedilinkarrow-up3·21 小时前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”.
minus-squareMummifiedClient5000@feddit.dklinkfedilinkarrow-up4·20 小时前I agree, you’re right about the part after the pipe and RegalPotoo’s explanation was not entirely correct.
It’s a line with a sequence of two or more characters repeated at least twice.
Only the part after the pipe character. The pipe character works as an “or” operator. RegalPotoo is right.
They said—
Note—
It should be—
The regex in the post will match “abab”. Their original description (line 2 of this comment) will not match “abab”.
I agree, you’re right about the part after the pipe and RegalPotoo’s explanation was not entirely correct.