Regex Hell
reddit / irc

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fuzzybear3965 · 2016-01-01 05:26

Saw this on #go-nuts today.

<sammy007> ryu0: my regexp for password strength validation is ^(?=.*[
A-Z].*[A-Z])(?=.*[!@#$&*])(?=.*[0-9].*[0-9])(?=.*[a-z].*[a-z].*[a-
z]).{12,}$ I got invalid or unsupported Perl syntax: `(?=`. I am
searching for workaround.
<fuzzybear3965> Dear Lord.
<ryu0> ._.
<fuzzybear3965> My eyes are bleeding.
<ryu0> i like regular expressions but that is just hard to read.
<fuzzybear3965> Hahahaha.
<fuzzybear3965> Hahahahahahaha.
<Vendan> ROFL
<sammy007> it works in ryby, javascript, but not in go
<Vendan> that's hilarious dude
<fuzzybear3965> Kill me.
<fuzzybear3965> I'm dying.
<ryu0> Go doesn't fully implement PCRE.
<Vendan> the only redeeming quality of that is the .{12,} at the end
<sammy007> LOL, fuck it then
<ryu0> https://xkcd.com/1171/

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MsEtheldreda · 2016-01-01 07:45

Go developers being elitist. What a surprise. ^/s

That said, that Regexp is pretty awful.

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fill3r · 2016-01-01 15:54

http://i.imgur.com/dkbyB.jpg

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dim13 · 2016-01-01 17:04

Relevant too: https://xkcd.com/936/

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xkcd_transcriber · 2016-01-01 17:04

[Image](http://imgs.xkcd.com/comics/password_strength.png)

**Title:** Password Strength

**Title-text:** To anyone who understands information theory and
security and is in an infuriating argument with someone who does not
(possibly involving mixed case), I sincerely apologize.

[Comic Explanation](http://www.explainxkcd.com/wiki/index.php/936#Expl
anation)

**Stats:** This comic has been referenced 1918 times, representing
2.0375% of referenced xkcds.

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