this post was submitted on 14 Feb 2025
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what debugging regex feels like (lemmy.ml)
submitted 1 week ago by cm0002 to c/[email protected]
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[–] [email protected] 21 points 6 days ago (1 children)

I usually do

# What we are doing (high level)
# Why we need regex
# Regex step by step
# Examples of matches
regex

And I still rewrite it the next time

[–] InnerScientist 17 points 6 days ago* (last edited 6 days ago) (2 children) 
// abandon all hope ye who commit here
(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])

Edith: damit, Not the first to post this abomination

[–] Fungah 2 points 6 days ago

I haven't laughed so hard in a month. Thank you for that.