Re: Better RFC conformance for FILTER_VALIDATE_URL
| From: | Andrey Andreev | Date: | Thu, 06 Nov 2014 13:45:03 +0000 |
| Subject: | Re: Better RFC conformance for FILTER_VALIDATE_URL | ||
| References: | 1 2 3 4 5 6 7 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-78817@lists.php.net to get a copy of this message | ||
Hi,
On Thu, Nov 6, 2014 at 3:39 PM, Kévin Dunglas <dunglas@gmail.com> wrote:
> FILTER_VALIDATE_DOMAIN checks conformance with DNS RFCs : total length,
> label length and allowed characters (_ are allowed in domain names but many
> other characters are forbidden such as ~/+...). I'll add IDN support too
> when IDN support for streams will be merged.
I am not trying to argue, but where does it say that ~/+ are
disallowed, yet an underscore is? The only rule *allowing* underscores
that I've seen is the one that says any binary string is a valid DNS
record value.
Cheers,
Andrey.