On: In search of the perfect URL validation regex

[saraid216]

That doesn't work for validation.

[lazyloop → saraid216]

Of course it does, if that regular expression matches we have a valid URI. It's silly what gets downvoted on HN these days.

[zAy0LfpBZLC8mAC → lazyloop]

No, it doesn't. This regular expression matches strings that are not URIs, and that should be quite obvious if you compare the grammar in that same RFC to the regex.

[lazyloop → zAy0LfpBZLC8mAC]

Yes, it does. And it is quite obvious if you compare the grammar to the regular expression.

[zAy0LfpBZLC8mAC → lazyloop]

Please show how to produce the following string (which is matched by that regex) from the grammar (without the quotes):

"%x"

(edit: actually, feel free to do it with the quotes included if you like, that would still be matched by that regex)