[Development] QUrl setPath Qt4 vs Qt5

[Thiago Macieira]

On Sunday 28 September 2014 01:02:11 Samuel Gaist wrote:
> Hi,
> 
> Following a post on the forum, I've checked and there's been a behavior
> change in QUrl's setPath between Qt 4 and Qt 5 that is not mentioned in the
> "C++ API changes" chapter.
> 
> If I understood correctly:
> 
> QUrl example1("http://www.example.com");
> example1.setPath("pub/something");
> 
> makes example1 invalid in Qt 5 due to the fact that "pub/something" is a
> relative path (following QUrl documentation and test) but in Qt 4 the
> result is "http://www.example.com/pub/something".
> 
> Should it be considered bug in Qt 4 that needs fixing ? However fixing it
> might break existing application that could be relying on that behavior. In
> this case, simply add the API break in Qt 5's documentation ?

Yes, it's a bug in Qt 4, bug I won't fix it because it's not that important and 
would require a major change.

QUrl in Qt 4 has quite a few known issues with encoding and decoding of 
delimiters too. And its QString constructor is a completely flawed design and 
should never be used.

QUrl changed considerably in Qt 5 to comply better with the URL specifications 
and with brokenness out there. If we add anything to the documentation, it 
would be the previous sentence, with no extra details.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center