this post was submitted on 10 Mar 2026
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Programmer Humor

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Alright nerds, who can guess what this RegEx matches? (sopuli.xyz)
submitted 2 days ago* (last edited 2 days ago) by NoFood4u@sopuli.xyz to c/programmer_humor@programming.dev
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(?i)\b((?:(?:[a-z][\w-]+:)?(?:/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))
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[–] hoshikarakitaridia@lemmy.world 23 points 1 day ago* (last edited 1 day ago) (1 children)

/unlearn

[–] Venator@lemmy.nz 1 points 17 hours ago

It seems most browsers basically ignore them:

https://lemire.me/blog/2026/02/28/you-can-use-newline-characters-in-urls/

So probably not worth remembering anyway.