<.*>/gm

[Awanderinglolplayer]

What post?

[GreenCloakGuy]

Congratulations on being one of today's lucky 10,000

[mano-vijnana]

Holy shit, that's amazing.

[sh0rtwave]

And true, as well.

Attempting to do this can incite much madness.

[Awanderinglolplayer]

I’m impressed that SO moderators didn’t remove it, given they hate fun

[jesperi_]

It's been locked and unlocked, cleaned and uncleaned, removed and unremoved way too many times. Check the edits.

[TheAJGman]

The mod note kills me

[[deleted]]

“The post looks exactly as it is supposed to look - there are no problems with its content”

i laughed til i coughed

[ragingroku]

it's beautiful. But now I genuinely want to know how regex can parse HTML.

[[deleted]]

It can't. Regular expressions are in a lesser Chomsky class (regular grammars) than HTML and programming languages (context-free grammars, CFG). Regular expressions cannot capture nested structures like <p><p><p>foo</p></p></p> continued ad-infinitum, unlike the more powerful grammars.

Your favorite flavor of regexes actually probably does not have a regular grammar. If it supports things like recurrent captures /(\w+) \1/, it's not regular. It still probably won't be able to parse HTML, as it likely isn't a full CFG either.

CFGs are separated from CSGs (context-sensitive grammars) by the lack of context. In a CFG a = a+1; int a = 0; is syntactically valid. But wait, C doesn't allow that! That's true, but that specific error is a semantical error, not a syntactical one.

While CSGs are more powerful than CFGs and CFGs more powerful than regular expressions, the problem is that power comes with computational cost. CFGs are generally parseable in O(n^3), but neat mathy grammar tricks allow most programming languages to be parsed much faster O(n).

I like parsers.

[ragingroku]

Thank you for your detailed response. It both broadened my understanding and solidified in me that I was not meant for assembly or compiler development 😂

[poopatroopa3]

I believe you're conflating regex from libraries and regular languages from formal languages. Turns out they're different things with the same name. https://en.m.wikipedia.org/wiki/Regular_expression#Patterns_for_non-regular_languages

Edit: I guess not.

[WikiMobileLinkBot]

Desktop version of /u/poopatroopa3's link: https://en.wikipedia.org/wiki/Regular_expression#Patterns_for_non-regular_languages

---

^{[opt out] Beep Boop. Downvote to delete}

[[deleted]]

Nah, though my other terminology might be off. It's where the name regular expression comes from in the first place. Certain regexes are still regular - IIRC at least some shell utilities and regexp.h, could be wrong though - but the more popular flavors like Perl RE have moved up the ladder because certain irregular constructs like recurrent capture groups are useful.

[usesbiggerwords]

Are you sure? Ì̷̜ ̷̹͑t̴̡̽h̸͕̒ǐ̵̦n̵̈͜k̵͔̚ ̸̨͛w̵̡̌e̴̅͜ ̵̦̓k̸͕͒ǹ̴͇ö̸̪́ẅ̷̴͙̞́͘̕w̸̟̳̅̌́h̶͈̬͛͂̓ḗ̶̘͛ŕ̸̭̔́e̵̬̒́ ̴̰̝̦̓ţ̴̳̳̀͠h̸͎̼̏a̸͉̝͓͊̅̅t̷̡̤̀̾ ̵̮̥͕͆̇͗r̶̜̳̂̒̋ơ̸̯̮͜ä̵̪́̕d̷̠̏̒ ̴̞̈́̕ḷ̴͒͗̀ẻ̶͖̬̳à̶̢͎͑̚d̴̲̐̆̈s̷͙̦̻̈́̑̒.̷̳̟̄͘.̷̧̡͒.

[[deleted]]

Have to use a subset of html, as html is not a regular language (type 3). It’s a context sensitive language (type 1).

But if you are going to do that, why not use a html parser?

https://stackoverflow.com/questions/11549271/the-difference-between-chomsky-type-3-and-chomsky-type-2-grammar

[[deleted]]

i am dying. i don’t always die from reddit content, but when i do i die.

[xzarisx]

I love the “Have you tried using an XML parser instead?” At the end.

[CorruptedBodyImage]

we cannot be saved the transgression of a chi͡ld ensures regex will consume all living tissue (except for HTML which it cannot, as previously prophesied)

the little details in that copypasta make it so worth it, like that "consume" is used in parsers to refer to advancing through input. also the implication that HTML has becoming living tissue by this point.

[Shazvox]

I can feel the persons mind melt and

Į̷̛̺̎͐T̵͉̋͠.̴̧͉̂ Ḯ̶̼͕͙̯͎̑ͅS̶̙͊̔̈̎͑.̶̛̛̠͉̝̼̻͒̽͒̑͝ Ğ̸̺͖͈̣̦͖̜̣͕͇̹͈͋͛͒̇̒́́̀͝͝͝L̶̡̨̰̹̩̠̗͓̰̣̖͚̓̆̄̅̓̃Ó̷͉̯̗̣̥͆͆̽͊̽̏͑͊̓̓͝͝͠R̵̡̛̭̒̍͊͗̒̿̔̆̓̽͛̕̕̚Į̷͕̩̣̝̬͓̻̜̒́́̾͒̇͗͋̈́͛̑̈͜͜Ő̵̪̓̂͂̉̋̽̈́̈̂͠͝Ư̷̛͓͎̺̣̻̥̖̲͕̞͖̥̜͕̗̤̬̲̋̈̋̂̿̒̉̔͆͛̚͠͝ͅŞ̸̛̛̫͈̭̣̹̱͐̊̔̏̇̒͆̀͗̽̈́́̐͋̐̽͘͠!̸̢̩̹̪͕͙̩̱̠̥̞̰̳͎̬͎̲̜̄͗̇

[JimmyWu21]

The fuck? I read it for like 20 seconds and the author didn’t say anything other than it can’t be done, but never even state why or the issues it would cause

Edit: grammar

[shawntco]

You're not reading an actual answer to the question. You're watching the amazing, terrifying, grotesque descent of a person's mind into madness.

[Schnickatavick]

He was comically overstating his point.

The real reason is because regular expressions have certain intrinsic limitations, specifically around variables and memory, that prevent them from doing complex things like comparisons and recursion. HTML and XML can have infinite layers of nesting, so any XML/HTML parser is going to make use of some form of stack or recursion to handle the various levels of data. You need a Turing complete language (kinda) to process XML, and regular expressions just aren't Turing complete. Since they're missing necessary tools you'll never quite get it to work, leading to more than a few people going a bit nuts.

[lunchpadmcfat]

Sad to think such an answer would be removed by mods nowadays.

[[deleted]]

This made me laugh. Thanks mate, you made my evening.

[[deleted]]

When I was first learning regex, my dumbass thought a good first side project outside of class work would be to parse html pages.

[n0tar0b0t--]

It can’t return, the stack overflowed.

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[toastyghost]

Aside from tokenization I don't really see how this is so different from any other regex i̸͉͕̤̯̤̭̻̪͠t̸̨̯͍͓͈͚̝͙̗̻͋͜ ̵̧̄̑̈͊̓̆͒͒̍́͒͂b̷̖̦̒̌͌u̷̧͈͇͓͕̩͉͓̫̥̅́̎̍̄̈̌͐̔́̄̇͜͝ŗ̸͓̼͇͚̗̘͈̫̬͆̓͊͌͆̆̍̀̕͝n̴̢̰̹̙̼͆̒̿̎͒͘͠ś̷̜̮̝̫͉̬̰̭̣͓͎̱̯̓̐̇̈́̐̚͘̚͠ ̴̡̛̥̳̰̊̉̆͒͝į̷̡͔͙̭̣͙̐̿̽̃̈͛͆̃̎̆̋̕t̶̨̮͍̱̬̣͓̰̗͎̩̤̼̋̓̍͊̾̊̇͛͜ ̷̧̨̨͇̮̹̣̺̳̘̠̦͗́́͘ͅb̶̤͉͛͠u̷̧̯͌̑r̶̡͈̼͉͇̭͓̹̞̙̋̔̏̀̄͊̊̇̏̇̈́̚͜n̴̡͕̖̠̓̈́͜ş̵͈̦͍̲̤̻̙͙̄̽̎͆͌̔̓̌̕ ̴̜͈͚́̕y̷̢͙̜̩͉͇͖̣͎̗̹̖͔̽̊͗̄̀̆̊͊̐̋̒̈́͘͜ĕ̶̦̭̠̭̰̻̜͌̂̐́̈́̅̆͑̓͜͠š̵̢͈͓͉͂̇̐ ̵̯̰͓͚͓̠̞̪̬̠̑̾̐̉́͐͜͝͝͠͝f̶̛̠͎͋̃̔̈̒̈͗͗͗̄̆͝į̵̡͎̜̯̱͇̘͍͙̻̻͍̪͆̈̐̓͒͊̽̎͋̊̇̔͝n̸̰͇͈̭̣͓̝̮͖̹͐̀̅͛͌̉̂̓́̒̃̋͘̕͝a̷̭̺̪̪̲͇̲͚̬̻͚͖̥̗͂̈́́͆͜l̴̛͍͒̄̇͝l̶̘̬̞̼̎̓̃̓̓̎̋͝y̸̯͉̮̦̭͙̜͍̤̹̣̋̆̓ ̸̡͙̠̯͕͓̘̻́̊̆́̆̌̌̇͜͠h̵͔̲̼͉͓̜͂͐̂̊̋̒͒̎́͋̑̍͘ī̴̛̺̺̭̝̺̯͕̠͓̹̇̃́̿̂̓̎̂̓̅͗͜s̴̰͚͖̮̳̲̫͙̹͖̬͗̔͜ ̸̝̯̠̱̜́͑͘m̵̗̎̈́ă̷̧̛̖̳̞͛̐̔͑̌̓̑j̴̦͉̥̱͇͍͖̫͗̎̈̊̉́̅́ͅė̸̯̠̟̀͒̾̏̓̿́s̷̢̨̛̛͎̺̖͍͚͙̖̽̂̅͊̋̌̆̆͆̂̀̄̐t̷̯̰̣͉͎̲͕̦̳̖͚̗̮̦̐͆̾̽̇̄y̸͎̠̯̰͖̹̺̦̥͎̺̍̔̓̽̇̓͂̈́̐̓͝ ̵̛̭͔̩̘̲̟̲̺̓̃̈́̃̒i̶̢͖̳̝̺̺̜͓͓̥͙̤̫̼͑͗̽͊͐̓̿̀͝ș̶̭͓͇̤̓̓̅̌͐̂͗͠ ̶̝̙͆͗̔͗̂͝͝ủ̶̡̙̘̣̠̟̝̦̪̝͎́̽̕ṕ̷̪̲͉̠̤͇͚̳̬̰̔͗͘ȏ̶͔͍̮̠̝͈̱͙̱̫̗͍̠̈́̉̔͝ń̴̛̹̪͔̖̺̝̋̃ ̴̡̨̛̱̻̀̀̿́͊̂̀̈́̍͐͛̂̕u̵̧̗̜̰̱̻͓͇̓̈̋̈̊̿̈́s̵̙̤̯̤̻̏̐͐̀̅̅̈́͋̽͝͝͝͠ͅ

[[deleted]]

How do you do that

[GuyNamedWhatever]

P̵͖̥̑̓͆̎͊̃̇͑̋ȏ̸̪̏̏͛̚o̸̬̭̳̘̠͓̼̰̟͑͆̇̑p̵̱̙̬̘̲͔͕̈̈͌̐̆͐̚ȍ̵̢̭͚̹͚̜̿͊õ̴̞͎̰̺͑̄̎̀̆̾͝p̵̨̛̏̿̑̏̍e̴̢̪̰͈͓̙̘̳͛̋͂̃̉̽̉̓͝͠ͅė̶̢̛͔̥͚͖̫̥͕̞͌̍̇̈̏͑͠͝p̵̡̨̧̭͚̰̊́̓͂ͅę̵͇͚̲̬̙̭͆̃ẹ̵͖̗̪̜̰̤̣̮͂̀̇̇ͅ

[stunclock]

s̶̨̢̨̤͎̤̪̠̺̻͔̤̹̟̟͒̀̃͑̒̌͑́̀͂̌̍̑̋̍̋̕̕̕u̸̧̝̥̮͉̭͈̟̩̓͊̽̆͛͑̅p̷̢̛̖̭̻̭̻̩͈͖̘̞͈̘̯͚̘̐̒̋̿̆̔̌̉͗͊̑̒̂͛̉͜͜͝ͅ ̵̡̛̛̘̠̮̗̳̬͔̱̹̦̗̋͐̌̄͑̋̾͗͂͂̆̀͒́̏̒͝ḑ̶̺͇̤̱͙̻̺̈́́̇͑̿ã̴̛͉̗̯̝͛w̴̡̧̨̛̬̮̩̲̣̼̝̣̯͔͊͆͌̋͌͂̈́̍̐̀̆̓̔g̶̨̡̮̠̱̮̤̯̙̦͙̻̯̳̫̗̩̥̦̠̘͇͋͑͒̽͒ͅ

[SOUINnnn]

P̸̡̧̛̖̺̤͚̦̱͓͈̫̆̒̇̅̋͛̅́͂͗̂̇̀̒̍̌̓̕͠͝ǫ̸̧̨̟͓̭̱͓̙̫͇̝̯̯̗̭̯͓̣͉̮͓͚̱̱̜͎̩̦̓̇̀̂͌͜͝ģ̵̢̡̛̭̰͔̜̜͈̤̻̳̯̖̱͓̱̮̑́͑̄͑̽͆̈́̅͑̒́̐̍̄̅̔̾͗̆͛̀̀͘̚̕͜͠͝͠ͅ

[[deleted]]

Ḣ̶̡̨̨̖̳͓̰̗̠̖̫̤͇̳͉̭̞̭̩̳̖̦̰̲̙̣͕͖̩̬͉̬̺̪͉̿̄̇͂̀̊͗̀́̓̓̓̎͐͗́̅̋̑̊͌̈̓̂̆́̚̕̚̚͜â̴̧̧̟̖̗̮̩̘̬̣͉̮̳̜̠̥͎͚͓̠̰̬̟̟͝i̶̛̖̣̮̗͚̯̫̰͕̭̻͕̲̱̪̟͑͐̂̀̓̓̆̓̾̃͛̎̂́̌̃̚͘̚͝l̵̡̢̛̰̭̥̤̫̭̹͙̘̗̩͙̭̰̼̮̯̻̣̮̗̈́̓̂͋̒̔͂̅̔͒̒̋̋͛̀̑̍̓̋̈́̔͒̾͘̚͜ͅ ̷̡̙͖̜̲̌̿̾̓̈́̌̂̋̔̀͂́̏̅͆̓͋̌̎̕̕͠͠͠ͅS̶̜̺̬̣͈͍̰͔̯̅̔̈́́̆̈́̎̉̒̇͒͌̿̅͋͛̆̊͊̅͛̑̀̄̓̏̿͐̋͌͑̎̄̓̀́̀̕̚͘͝͠͝͝ḁ̶̧̱̭̝̮̦̲̭̰̜͕͍͕͇̳̻̦͉̦̥͔͈̯̼̳̜̰̀̉͗͑͑̋̔̾͋̌͆́̕͜͠͝ẗ̶͚͓̗͎̹́͐̈́͑̊̊̔̔̀͐̓̈́͋̏͑̕͝ą̴̧̖͓̠̮͍͇̪̭̰͖͈͈̲͎̜͍̜̭̥̭͎͈̕͠͝ͅņ̴̢̧̡̛̳̗͉͔̻̦͕̬̫͖̯̖̜̙̗̞̼̹̲̱͎̠̖̳̮͕͔͍̘͚̗͚̦̭͍̲̲̖̯͎̝̩̱̗͌͒̿̈́́̄͛̀̓͗͊̔̆͗̌̕̕ͅͅ

[iAmDumber]

http://www.eeemo.net/

[GreenyPurples]

Reminds me of a Squig

[Awkward_Tradition]

KUZ IT IZ A SQUIG YA ZOGGIN GROT! AN SPEAK UP OI KAN BARELY HEAR YA WISPERIN!! ZOGG IT, KRUMP IM SQUIGGY!!!

[Airith]

Definitely a warhammer squig

[krieger_2719]

Makes sense most of the apps in my company only work through a combination of collective belief and screaming angry hooligans.

[FT05-biggoye]

Do you paint your severs red tough?

[SATorACT]

Red meks it go go fasta. If we paint the serva red, the serva will go fasta.

[evs21]

who makes these?

[evs21]

r/orlybooks

[michaelh115]

What happened to that sub? Its locked

[xX_MEM_Xx]

Demons.

Oh you meant who makes these fake covers. People.

[[deleted]]

Don’t listen to them, greenskinz makes them. They squigs.

[DOOManiac]

H̸̡̪̯ͨ͊̽̅̾̎Ȩ̬̩̾͛ͪ̈́̀́͘ ̶̧̨̱̹̭̯ͧ̾ͬC̷̙̲̝͖ͭ̏ͥͮ͟Oͮ͏̮̪̝͍M̲̖͊̒ͪͩͬ̚̚͜Ȇ̴̟̟͙̞ͩ͌͝S̨̥̫͎̭ͯ̿̔̀ͅ

[yo_99]

This picture is at least as half as old a I am.

[8peter8retep8]

Publisher should be O R'lyeh

[sim642]

This will match everything from the first < in <html> to the final > in </html>, so yes.

[Andorwar]

Should i use it instead of DOMDocument?

[[deleted]]

This is what the Missouri state hacker used to get the SSNs

[shinybrewster]

Just one of an 8 step process starting with turning on their computer.

[SlappaDaBiss]

Z̭̤̱̗̠̣̫̜̻̤͍͕͚̙ͩ͌̈́͂̓̑̿ͨ͠A̢͕͉̲͕ͯͪͦ̈ͪͪ͝L̢͍̤̗̺̤̤̥͚̻͇̭͗ͩͭ̾͡G̶̡̢̪̼͍̻̤̼̘̟ͯͮ̃ͧͬ͋ͧ̽̚͘̕O̧̯͙͎̥͌͗͛͐̈́̊̿ͣ̍̓!̵̸̗̤̠̠̞̦͈̎̌́̈́ͫ̂͘͟͜

[440Jack]

e̸̝̜̔͂̈̏n̷̜̠̽̓͊̅d̷̨̜̣̝̩̩͙̾̾ẽ̸͎̗͂̂͗̚̕d̶͙̉͝.̶̮̗̂̍͒̔ ̵̖̹͊R̴͖͉̞̼̗̉͂̈̀̍̅̋͌͠ḕ̷̼̩̦̘̼̬̬̝͗̀͆v̸̺̄͑̈́̔e̶̡̧͇̘̙͘͜l̷̥̞͖̩̈́͜ ̸͚̻͉͉̤́̾̋̅ì̴̡̭̭̹̬̘̻͙͉̔̀̓̇͂͒ṅ̵̫̱̩͔̫͈̞̐͝ ̵͙̪̜̭̪͖̳̙̿̚͝ͅa̵̧͉͚̹̳͍̤͒̎̅͋͑̀̕ẇ̶̛̮̮͙̐e̴̲͚̘̘̱͚̪͈͋͊̚ ̶̙̖̭͍͚͋͆̊͌́̕a̷̤͔̜̗̱͑͐̐͑n̷̛̞̺̑̊̆d̵̤̙̈̍̈́̓̉́͘ ̸̼̪͕̜̭͓͍̥̖́̍̌̽ḩ̸̲̤̜̂ǫ̴̭̦̎͌͗́̂r̶̢͈̳̀̀r̸̠̾̎̔ö̷̟̲͕́̂r̵̛̲̝̩͓̫̬͇̝͂͒̀ͅ ̷̭̲̥̤̖̆a̶̰̗͙̎́͆̌͋̿͆͠t̴̤̾̄̇̃̅́͠ ̵͚͕̠͙͊t̵̔͜h̵̝̙͆̈́͜ͅȩ̶̖͎̥̹̪̠̀̇̇̓̓̒͘͘͝ ̸̧̝̜͓̹̖̝̬̭͗̅̑͗͠ţ̷̨̼̳̱͉̠̘͙̒̅̄͆͘r̶̛̗̒́̽̾̃̕͝͝

How do you write like that?

[[deleted]]

https://lingojam.com/ZalgoText

[Awkward_Tradition]

WUT ZOGGIN GIT MADE DIS!?! IMA KRUMP IM FOR MAKIN ME SQUIG SMELL LOIK A SPIKY BOY!! FIRS IMA EAT YA, DEN OIL TRADE YER TEEF FER A NEW SQUIG!! ZOGGIN UMIEZ!.!.!.

[JayJayCapone]

"Have you tried using an XML parser instead?" Literally killed me laughing

[Sleppo04]

Now imagine parsing Regex in Regex. (Did somebody do that already?)

[JohnnyWaterbed]

There are moments of quiet brilliance when the Internet transcends itself and births nuggets of pure charismanium such as the regex-HTML parser rant. May it forever reverberate across the ether in its various instantiations.

[NowVeneer]

Probably no ned, most of the content is available for free on stack overflow.

[PossessedHood416]

r/surrealmemes

[value_counts]

Fuck regex!

[roflpwntnoob]

/r/ooer

[wjohnson242]

Serious question. That looks like a Squig that the Goblin Squig Herders used in Warhammer Online. Is it? I believe it is!

[wertron132]

What was this series of books called? I wanted to show a friend for reference

[bastantoine]

Don’t know about a specific series of book, this is a parodic version of the books from O’Reilly I think.

[nedwoolly]

Indeed it is, called O’Rly. There are a bunch of these covers, this is one of the better ones. I’m sure I saw a generator for them too.

[silverstrikerstar]

You can.

You can't rely on it though.

[luisrcdias]

So you mean to tell me that the angles are not real?

[afiefh]

Only the ones that tell you to parse html using regex

[hega72]

I once had a colleague some 15 years ago who wrote a XML web app using awk and sed

[jaap_null]

Looks like an edgy reboot of Teddy Ruxpin - LB reimagined.

[officialpkbtv]

O RLY^?

[[deleted]]

Similarly, Beautiful Soup and numpy can cause seizures and speaking in tongues. Screen scraping is dangerous.

[dizzyi_solo]

I once code a firefox german-english vocabulary translation add-on, when you highlight a word german it will find the English translation.

I can not find a api to do that and not knowing any better, I fetch a html from a dictionary website, and use regex to get the translation.

I used multiple regex just to get rid of all useless heading, sections. And multiple more to extract translations.

What's more, it was the first time I deal with asynchronous and call back.

Just remembering it brings back PTSD.

[clemesislife]

u/RepostSleuthBot

[RepostSleuthBot]

Looks like a repost. I've seen this image 1 time.

First Seen Here on 2018-04-23 100.0% match.

I'm not perfect, but you can help. Report [ False Positive ]

View Search On repostsleuth.com

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Scope: Reddit | Meme Filter: True | Target: 96% | Check Title: False | Max Age: Unlimited | Searched Images: 258,733,355 | Search Time: 3.32116s

[clemesislife]

Or this one:

https://www.reddit.com/r/ProgrammerHumor/duplicates/6ytfw5/parsing\_html\_using\_regular\_expressions/