[kmail2] [Bug 358049] URLs that end in . or ? aren't parsed correctly

[Erik Quaeghebeur via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=358049

--- Comment #5 from Erik Quaeghebeur <kdebugs at equaeghe.nospammail.net> ---
(In reply to kdex from comment #4)

Thanks for your reply.

> I don't see a clear benefit from teaching people to misunderstand URLs.
> Suggesting that they might not end in a dot will naturally break lots of
> valid URLs, and the same goes for question marks (and potentially other
> tokens that I haven't checked).

Well, that is an URL entry issue. KMail could suggest people to encapsulate
URLs it detects in mails about to be sent out using <...>.

> Also, expecting that users will put punctuation symbols after their URLs to
> end a sentence is a constructed heuristic; the majority of my sent and
> received mails actually contain footnotes such as "[1]", which will be
> completed with their URLs at the bottom of the mail, line by line. This
> format is also very wide-spread and suffers from KMail's heuristic.

Indeed this format is common. URLs ending with periods or question marks less
so, and that is where it breaks. Nevertheless a valid point.

> Next, observe that this is not just about usernames that might end in
> punctuation. See [1] to agree that a dot at the end of a domain is, too,
> valid syntax and should be parsed to reflect that.

I would need to be convinced that this is a practical issue. I haven't come
across mails with domains in this format. I have come across plenty of mails
with periods as punctuation at the end of URLs, i.e., that won't resolve if the
period is parsed as part of the URL.

> In the case of usernames
> or other dynamic parts in a URL, KMail *will* break websites (like [2],
> which allows trailing dots in usernames and thus, in their profile page
> URLs).

Indeed; that is problematic. You've convinced me that this is a real issue.
Nevertheless, always parsing periods as part of the URL will also break links.
The KMail devs will have to decide what is most important.

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