hey

Hi

So the server I work on has a vouch system

where you can give someone a vouch by tagging them in a specific room and then writing what the vouch is for

I want to write a regex that matches when someone tags someone but doesn't write what the vouch is for

the bot sees discord mentions as <@3242938402492490>

this is my test case list

OK, so am I understanding correctly that the number must be a specific number of characters long?

the number is arbitrary

discord ID's can go from 8 digits all the way to 13 or 14

basically I want to match all strings where there is a mention (contained in <@ and > with a number in between) and the non-whitespace text that is not the mention is less then n (say, 4) characters long

You're going to have to define what n is (the actual number of characters permitted to follow the mention.

.... and you did

I think I need a negative lookahead for that but honestly I'm in over my head for my meager regex skills

How are you using the regex? Is it only a test (i.e. generating only match/not match), or are you using it to get sub portions of the text and/or perform a replacement on the text?

It's a test

Is each line in your examples to be separately considered the entire string which is being tested?

if there's a match the message gets removed and the user gets a PM

yes

each line is the whole string

@mag Your test cases all have more than 14 digits.

yes, it should only count the chars that are not part of the mention

actually let me get real id's as test cases

<@535849415869726766> +1 non cold <- No match

<@580829651228688389> +1 <- match

<@108635192519823360> aug life <- no match

<@292356812316082176> rem <- match

actually looking at it closer I can live with people with legacy accounts not getting matched so we can assume the ID's are always that long

@mag This regex allows for an unlimited number of ! and & characters after the @, but only both when the order is that any ! are before the &. Is that really what you're wanting? A more typical format would be that there is permitted to be a single ! or a single & character. What exactly are you looking for there?

It might be scuffed or I might have found it wrong

we're using that one to part-match mentions

@mag We can easily specify a range for the number of digits, or permit any number. My concern would be that you might want to reject something like:

<@1>

up to a certain minimum number of digits. You'd mentioned 8 digits as a minimum.

These messages are all coming from the bot

it's guaranteed to have a valid mention otherwise it won't get checked

A few possibilities:

<@!*&*\d{8,}>(?=.{0,4}$) ⠀⠀⠀⠀⠀regex101

<@!*&*\d+>(?=.{0,4}$) ⠀⠀⠀⠀⠀⠀⠀regex101

<@[!&]*\d{8,}>(?=.{0,4}$) ⠀⠀⠀⠀regex101

<@[!&]?\d{8,}>(?=.{0,4}$) ⠀⠀⠀⠀regex101

all of these work :o

that's amazing

thank you so much, i've been pulling my hair out for a while over this

np. I'm glad I was able to help.