XML handle attribute outputs percent symbol after saving entry in Sym 2.7

[cylkee]

Affected Symphony version(s) : 2.7.10
PHP version(s) : 7.3.12
OS(es) : Linux

To reproduce, use a core Text Field and input Hello % World. Result in XML is handle="hello-%-world".

This does not appear to affect Sym 2.6.x, A similar test in Sym 2.6.11 saves as handle="hello-world".

[wdebusschere]

I also have this.

The problem must be in this code:
https://github.com/symphonycms/symphonycms/blob/master/symphony/lib/toolkit/class.general.php#L350

preg_match_all('/[^<>?@:!\-\/\[-`;‘’…]+/u', $string, $matches);

changing it to the previous version fixes this:

preg_match_all('/[^<>?@:!-\/\[-`;‘’…]+/u', $string, $matches);

[cylkee]

@wdebusschere Good spot, thanks.

I think the original version matches ! to /, which includes "#$%&'()*+,-., but escaping the hypen stops matching those additional characters.

8d7df42#diff-7df0f022f38a40206c11fae6e6c5f0b9

FYI, @nitriques @michael-e

Looks like this matching was reversed for 3.0.0 9c43772, although I have not installed 3.0.0 yet.