Programmer Humor

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Alright nerds, who can guess what this RegEx matches? (sopuli.xyz)

submitted 1 month ago* (last edited 1 month 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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[–] neidu3@sh.itjust.works 44 points 1 month ago* (last edited 1 month ago) (5 children)

Looks like an URL matcher of some sorts, not limited to HTTP. Kudos for handling parentheses as valid URL characters.

[–] refalo@programming.dev 24 points 1 month ago (4 children)

URLs can have newlines too

[–] hoshikarakitaridia@lemmy.world 28 points 1 month ago* (last edited 1 month ago) (1 children)

/unlearn

[–] Venator@lemmy.nz 3 points 1 month 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.

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