Coding Horrors: You can gather all your technical debt into one easy framework!

The Something Awful Forums > Discussion > Serious Hardware/Software Crap > The Cavern of COBOL > Coding Horrors: You can gather all your technical debt into one easy framework!

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Doc Hawkins: Jun 15, 2010; Dashing? But I'm not even moving!

Bongo Bill posted:

Is there a shell that does have good syntax?

https://hackage.haskell.org/package/turtle

# ? Jun 23, 2018 18:33

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# ? May 25, 2024 08:38

SardonicTyrant: Feb 26, 2016; BTICH IM A NEWT
熱くなれ夢みた明日を
必ずいつかつかまえる
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&

Eggnogium posted:

No, which is why you should write all your scripts in python. Sadly my org will never get on board with that.

That's something I'd love to do with our team. After the...other horrors.

# ? Jun 23, 2018 19:17

ynohtna: Feb 16, 2007; backwoods compatible; Illegal Hen

Bongo Bill posted:

Is there a shell that does have good syntax?

emacs

# ? Jun 23, 2018 19:27

TooMuchAbstraction: Oct 14, 2012; I spent four years making
Waves of Steel
Hell yes I'm going to turn my avatar into an ad for it.; Fun Shoe

Bongo Bill posted:

Is there a shell that does have good syntax?

Comedy option: Perl. :v:

# ? Jun 23, 2018 19:55

tyrelhill: Jul 30, 2006

I worked on a build system based on makefiles and Perl years ago... What a hosed language, hope I never use or see it again

# ? Jun 24, 2018 17:53

TooMuchAbstraction: Oct 14, 2012; I spent four years making
Waves of Steel
Hell yes I'm going to turn my avatar into an ad for it.; Fun Shoe

tyrelhill posted:

I worked on a build system based on makefiles and Perl years ago... What a hosed language, hope I never use or see it again

It is great at its original intended purpose, viz. text processing. You can replicate most of its capabilities using sed and awk, but not always and personally I'm bad at remembering how to use those tools. So, like, a one-liner to find things that look like email addresses, convert them to lowercase, and output them would look something like this:

code:

cat file.txt | perl -ne 'chomp; /\s([\w\d\.]+@[\w\d\.]+)\s/; print (lc $1) . "\n" if ($1)'

In this day and age though, there's a better option for pretty much anything you'd want to do with Perl that isn't commandline one-liners.

(And yeah, I know that regex is bad and that trying to recognize email addresses is a stupid-hard problem)

# ? Jun 24, 2018 19:20

Nth Doctor: Sep 7, 2010; Darkrai used Dream Eater!
It's super effective!

TooMuchAbstraction posted:

I know that regex is bad

Ron Howard voice: No it isn't.

TooMuchAbstraction posted:

and that trying to recognize email addresses is a stupid-hard problem

Ron Howard voice: Yes it is.

code:

\A(?:[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])?
  |  \[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}
       (?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:
          (?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]
          |  \\[\x01-\x09\x0b\x0c\x0e-\x7f])+)
     \])\z

# ? Jun 24, 2018 19:40

Nude: Nov 16, 2014; I have no idea what I'm doing.

ynohtna posted:

emacs

# ? Jun 24, 2018 19:50

Doom Mathematic: Sep 2, 2008

The email address regex is constructed by machines and consumed by other machines. The intermediate representation is unfit for human eyes but that's nothing unusual.

# ? Jun 24, 2018 22:33

FlapYoJacks: Feb 12, 2009

If you are trying to solve a problem with regex, you now have two problems. :v:

# ? Jun 24, 2018 23:05

Jeb Bush 2012: Apr 4, 2007; A mathematician, like a painter or poet, is a maker of patterns. If his patterns are more permanent than theirs, it is because they are made with ideas.

TooMuchAbstraction posted:

It is great at its original intended purpose, viz. text processing.

it's fine at that, but there's still no reason for someone without pre-existing perl experience to choose it for that purpose over python or ruby

you get some nice-ish syntactic sugar in exchange for the incoherent design that comes from taping together a dozen unix utilities and calling them a language

# ? Jun 24, 2018 23:14

ToxicFrog: Apr 26, 2008

New Yorp New Yorp posted:

What's dumber is how it handles return types.
code:
function Foo {
param ($n) 

    Write-Output 'trace statement'
    return 1..$n
    
}
You'd expect that to return the range 1 to n. Except it doesn't. It returns an array, with the first element being 'trace statement'. Trace statements should be written with 'Write-Host', because Write-Output writes them to the output pipeline. It's yet another subtle gotcha that hurts people and causes stupid bugs.

This looks like they looked at the way functions in Bourne have to "return" anything that isn't a small integer by writing it to stdout and then capturing it with $(...) -- something that makes it very easy to get log output from your function or anything it calls mixed into your "return value" by accident -- and went "yes, this is awesome, we should replicate this behaviour in Powershell". :whoptc:

I've barely touched Powershell, but based on indirect exposure to it, it really looks like the high-level concept was "let's copy all the most awkward misfeatures from the Bourne family, but with much more verbose syntax for everything and perhaps stick a type system in there somewhere".

# ? Jun 24, 2018 23:27

iospace: Jan 19, 2038

ynohtna posted:

emacs

Needs a good text editor though.

# ? Jun 25, 2018 01:51

The Fool: Oct 16, 2003

ToxicFrog posted:

This looks like they looked at the way functions in Bourne have to "return" anything that isn't a small integer by writing it to stdout and then capturing it with $(...) -- something that makes it very easy to get log output from your function or anything it calls mixed into your "return value" by accident -- and went "yes, this is awesome, we should replicate this behaviour in Powershell".

I've barely touched Powershell, but based on indirect exposure to it, it really looks like the high-level concept was "let's copy all the most awkward misfeatures from the Bourne family, but with much more verbose syntax for everything and perhaps stick a type system in there somewhere".

That behavior happens because of how powershell treats the object pipeline and is perfectly logical if you understand the underlying concept.

# ? Jun 25, 2018 02:11

New Yorp New Yorp: Jul 18, 2003; Only in Kenya.; Pillbug

The Fool posted:

That behavior happens because of how powershell treats the object pipeline and is perfectly logical if you understand the underlying concept.

It's perfectly logical, but it's also totally counter to how someone coming from almost any other language would expect it to work.

code:

function bar {
    return 1
}

function foo {
    bar
    return 0
}

foo # returns @(1, 0)

Now, imagine bar is a function in a module with a side effect that returns an object that you're not capturing -- all you care about is the side effect, not the output. All I want to get back out of foo is my return value. Now imagine that bar returns output in some cases, but not all cases. Suddenly, I have a situation where whether my output is "0" or {unexpected poo poo,0} is totally unknown to me and I have to defensively code around this possibility, or just say "gently caress it" and not rely on returns and just set global variables.

I know you can pipe things to Out-Null so that this doesn't happen, but the bottom line is that it's awful, counterintuitive behavior. The way a powershell novice learns about these behaviors is by getting bitten by them.

New Yorp New Yorp fucked around with this message at 02:29 on Jun 25, 2018

# ? Jun 25, 2018 02:26

Simulated: Sep 28, 2001; Lowtax giveth, and Lowtax taketh away.; College Slice

Doom Mathematic posted:

The email address regex is constructed by machines and consumed by other machines. The intermediate representation is unfit for human eyes but that's nothing unusual.

Almost all email regexes are wrong.

There is only one way to validate an email address: send an email to it.

Given how badly programmers usually handle names, mailing addresses, and similar things I�ll also take the opportunity to remind people not to attempt to �validate� those things either.

# ? Jun 25, 2018 03:46

Polio Vax Scene: Apr 5, 2009

Simulated posted:

There is only one way to validate an email address: send an email to it.

If this is the only way, then I can safely assume there are zero ways to validate an email address.

v namaste v

Polio Vax Scene fucked around with this message at 19:36 on Jun 25, 2018

# ? Jun 25, 2018 19:01

Munkeymon: Aug 14, 2003; Motherfucker's got an
armor-piercing crowbar! Rigoddamndicu𝜆ous.

Polio Vax Scene posted:

If this is the only way, then I can safely assume there are zero ways to validate an email address.

Then you have achieved enlightenment

# ? Jun 25, 2018 19:06

poemdexter: Feb 18, 2005; Hooray Indie Games!; College Slice

Is just checking for *@* the bare minimum? That's what I've used just to validate input. I assume all email addresses have the @.

# ? Jun 25, 2018 20:57

Meat Beat Agent: Aug 5, 2007; felonious assault with a sproinging boner

"abc\@def.com" has an @, but it's also backslash-escaped, so it also doesn't.

# ? Jun 25, 2018 21:16

Plorkyeran: Mar 22, 2007; To Escape The Shackles Of The Old Forums, We Must Reject The Tribal Negativity He Endorsed

Useful email validations: does it have an @, does a call to getaddrinfo() on the thing to the right of the @ succeed.

# ? Jun 25, 2018 21:38

redleader: Aug 18, 2005; Engage according to operational parameters

Meat Beat Agent posted:

"abc\@def.com" has an @, but it's also backslash-escaped, so it also doesn't.

This is one of those cases where whoever entered that email is deliberately out to cause trouble. My policy in that situation is "gently caress you".

I also check .+@.+\..+ because there are people who use the @google TLD, and they also fall into the above category.

# ? Jun 25, 2018 21:50

ulmont: Sep 15, 2010; IF I EVER MISS VOTING IN AN ELECTION (EVEN AMERICAN IDOL) ,OR HAVE UNPAID PARKING TICKETS, PLEASE TAKE AWAY MY FRANCHISE

Plorkyeran posted:

Useful email validations: does it have an @, does a call to getaddrinfo() on the thing to the right of the @ succeed.

You can also do a fair amount of heuristics to suggest to a user that they may have made a mistake, but those aren't exactly validation.

By which I mean that you can detect, say, that in "ulmomt@yajoo.com" I may have made 2 typos, even if the domain exists (this one doesn't, but hey).

https://hackernoon.com/how-to-reduce-incorrect-email-addresses-df3b70cb15a9

# ? Jun 25, 2018 21:50

xtal: Jan 9, 2011; by Fluffdaddy

There's an extension for postgresql to do an MX lookup on the domain name before allowing email types to be saved

# ? Jun 25, 2018 22:32

Pollyanna: Mar 5, 2005; Milk's on them.

Just send an email and make them confirm the account :downs:

# ? Jun 25, 2018 22:55

TooMuchAbstraction: Oct 14, 2012; I spent four years making
Waves of Steel
Hell yes I'm going to turn my avatar into an ad for it.; Fun Shoe

Pollyanna posted:

Just send an email and make them confirm the account

ulmont's link is about pointing out that if the user typos a valid-looking email address, they'll never get the confirmation email and you just lost a customer. You can use some heuristics to try to detect typos; it's always going to be an imperfect science but you can probably catch ~99% of typos. Just let the user say "yeah actually I do use pollynaan@gmail.cmo".

# ? Jun 25, 2018 23:01

Plorkyeran: Mar 22, 2007; To Escape The Shackles Of The Old Forums, We Must Reject The Tribal Negativity He Endorsed

The important part that a ton of web sites seem to forget is that you need to give the user the option to go "oops, actually sent a verification email to this different address" so that when they don't get a verification email due to a typo they can then fix the problem.

# ? Jun 25, 2018 23:30

HappyHippo: Nov 19, 2003; Do you have an Air Miles Card?

More websites need verification emails so people stop signing up for poo poo with my email address

# ? Jun 26, 2018 02:28

Suspicious Dish: Sep 24, 2011; 2020 is the year of linux on the desktop, bro; Fun Shoe

Plorkyeran posted:

Useful email validations: does it have an @, does a call to getaddrinfo() on the thing to the right of the @ succeed.

I forget, does getaddrinfo() on untrusted input have any security concerns? I remember something being exploitable if you had an unusual nsswitch.conf module enabled.

# ? Jun 26, 2018 03:00

b0lt: Apr 29, 2005

Suspicious Dish posted:

I forget, does getaddrinfo() on untrusted input have any security concerns? I remember something being exploitable if you had an unusual nsswitch.conf module enabled.

There was a stack overflow RCE exploit in glibc's getaddrinfo a few years ago: https://security.googleblog.com/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html

# ? Jun 26, 2018 05:53

Plorkyeran: Mar 22, 2007; To Escape The Shackles Of The Old Forums, We Must Reject The Tribal Negativity He Endorsed

Suspicious Dish posted:

I forget, does getaddrinfo() on untrusted input have any security concerns? I remember something being exploitable if you had an unusual nsswitch.conf module enabled.

Obviously bugs can exist, but it is intended to be safe to call on untrusted input.

# ? Jun 26, 2018 06:05

canis minor: May 4, 2011

code:

trait IdOrStringCheckTrait
{
    public function isString( $string )
    {
        return ( $this->isInteger( $string ) == false ) ? true : false;
    }

    public function isInteger( $string )
    {
        $string = trim($string);
        return is_numeric( $string ) && ctype_digit($string)? true : false;
    }
}

# ? Jun 26, 2018 15:30

SardonicTyrant: Feb 26, 2016; BTICH IM A NEWT
熱くなれ夢みた明日を
必ずいつかつかまえる
走り出せ振り向くことなく
&

And so the ~~nightmare~~ realism continues. After re-writing the part of my project in which someone else used an unapproved third party library, legal chimed in to say they want a complete chinese wall rewrite of that part.

So. :v:

# ? Jun 27, 2018 17:26

Mooey Cow: Jan 27, 2018; by Jeffrey of YOSPOS; Pillbug

Mayst I interest thee in two vectors? :heysexy:

code:

class FTwoVectors
{
public:
	FVector	v1;
	FVector	v2;

	FORCEINLINE	FTwoVectors() :
		v1(0.0f),
		v2(0.0f)
	{
	}
	FORCEINLINE	FTwoVectors(FVector In1, FVector In2) :
		v1(In1),
		v2(In2)
	{
	}

	...
};

Perhaps you wish to use it as a six-dimensional interleaved vector so the value you get out is different from the index of the values you sent in? We got you covered.

code:

    FLOAT& operator[](INT i)
	{
		check(i>-1);
		check(i<6);
		
		switch (i)
		{
		case 0:		return v1.X;
		case 1:		return v2.X;
		case 2:		return v1.Y;
		case 3:		return v2.Y;
		case 4:		return v1.Z;
		default:	return v2.Z;
		}
	}

Still haven't figured out what the christ the "F" prefix means. "hosed"?

# ? Jun 28, 2018 12:10

csammis: Aug 26, 2003; Mental Institution

�Float�?

# ? Jun 28, 2018 13:11

Bruegels Fuckbooks: Sep 14, 2004; Now, listen - I know the two of you are very different from each other in a lot of ways, but you have to understand that as far as Grandpa's concerned, you're both pieces of shit! Yeah. I can prove it mathematically.

csammis posted:

�Float�?

as opposed to the super common integer vector

# ? Jun 28, 2018 13:24

Mooey Cow: Jan 27, 2018; by Jeffrey of YOSPOS; Pillbug

csammis posted:

�Float�?

There's also a FuckedString and FuckedName, which don't seem to have anything to do with floats.

# ? Jun 28, 2018 13:27

Absurd Alhazred: Mar 27, 2010; by Athanatos

Bruegels Fuckbooks posted:

as opposed to the super common integer vector

I don't know if you're being sarcastic, but e.g. GLM will have integer vectors. It's pretty common for placing things on grids, making parallel integer calculations, etc.

# ? Jun 28, 2018 13:51

repiv: Aug 13, 2009

F was indeed originally for float: https://forums.unrealengine.com/dev...ructs-stand-for

It seems to have morphed into a catch-all prefix for anything that doesn't fit into their other prefixes though.

repiv fucked around with this message at 14:09 on Jun 28, 2018

# ? Jun 28, 2018 13:58

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# ? May 25, 2024 08:38

Absurd Alhazred: Mar 27, 2010; by Athanatos

repiv posted:

F was indeed originally for float: https://forums.unrealengine.com/dev...ructs-stand-for

It seems to have morphed into a catch-all prefix for anything that doesn't fit into their other prefixes though.

"F" is for "gently caress it".

# ? Jun 28, 2018 14:25

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