How to guide only permits registration of usernames with the first letter capitalized for...

[Thangvip9x]

I dont use lowercase here [ÂÁÊÉÍÔÓÚÇA-Z]

Why the system is allowing it?

Please utilize my code

 

[Neilski]

So I made with more letters another version:

/^[ÂÁÊÉÍÔÓÚÇA-Z][a-zA-ZâãáêéíôõóúçÂÁÃÊÉÍÔÓÕÚÇ0-9_-]*$/
with all accent, but I don't know why, lowercase is allowed at the beginning.

Are you certain you're using exactly that regex? I just tested it (externally, i.e. not in the XF ACP) and it wasn't matching names which start with a lowercase character. If yes, can you paste an example username that it permits?

 

[Hareon]

Please try it

/^[ÂÁÃÊÉÍÔÓÚÇA-Z][a-zÂáãêéíôóúç0-9_-]*$/

If it works as you expect, hit like!

Please utilize my code

This code does not allow users to have capital letters in the middle of their name. That's why I tried to make a new one that would give this possibility.

Are you certain you're using exactly that regex? I just tested it (externally, i.e. not in the XF ACP) and it wasn't matching names which start with a lowercase character. If yes, can you paste an example username that it permits?

I am using this:

/^[ÂÁÊÉÍÔÓÚÇA-Z][a-zA-ZâãáêéíôõóúçÂÁÃÊÉÍÔÓÕÚÇ0-9_-]*$/

But the lowercase "â", as in the image, is still allowed. I found this strange because I thought the letters in the first brackets were the only ones allowed for the beginning of the name.

 

[Neilski]

I thought the letters in the first brackets were the only ones allowed for the beginning of the name.

Yes, that's what the regex indicates.

I just tried this in the ACP myself and it didn't work. So far I can't get ANY regex in the "Username match regular expression" to make any difference to the accepted usernames... (edit: belay that, just realised I had an issue with my test)

 

[Neilski]

But the lowercase "â", as in the image, is still allowed.

OK I corrected my mistake and managed to both reproduce this and find a cure.
Turns out you need to add the 'u' flag at the end of the RE, e.g. /^[ÂÁÊÉÍÔÓÚÇA-Z][a-zA-ZâãáêéíôõóúçÂÁÃÊÉÍÔÓÕÚÇ0-9_-]*$/u

 

[Hareon]

OK I corrected my mistake and managed to both reproduce this and find a cure.
Turns out you need to add the 'u' flag at the end of the RE, e.g. /^[ÂÁÊÉÍÔÓÚÇA-Z][a-zA-ZâãáêéíôõóúçÂÁÃÊÉÍÔÓÕÚÇ0-9_-]*$/u

Ooh! I'll try it.

 

[Mouth]

How to guide only permits registration of usernames with the first letter capitalized for XenForo - It only allows characters from a to z, digits from 0 to 9, hyphens, and dashes.

I use /^[\w ]+$/ which works well and achieves the same.

.Net regex: what is the word character \w?

Simple question: What is the pattern for the word character \w in c#, .net? My first thought was that it matches [A-Za-z0-9_] and the documentation tells me: Character class Description

stackoverflow.com

 

[Thangvip9x]

@Mouth
Please utilize my code

 

[Mouth]

@Mouth
Please utilize my code

No, thanks. \w is, IMHO, better regex for usernames and dissuading spammers.

 

[Thangvip9x]

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Author banned for piracy