[Development] [Question] Implementation of XML character validation

[Konstantin Ritt]

Neither of these relates to some specific Unicode version.
QChar is a 16-bit Unicode character part. QString is UCS-2-encoded. Read
about UTF-16 for more info.
Also !qdoc: QChar::highSurrogate(), QChar::lowSurrogate()

Regards,
Konstantin


2013/9/9 Kurt Pattyn <pattyn.kurt at gmail.com>

> Hi Konstantin,
>
> that is exactly what I did.
> From the Qt5 documentation:
>
> The QChar class provides a 16-bit Unicode character.
>
> In Qt, Unicode characters are 16-bit entities without any markup or
> structure. This class represents such an entity. It is lightweight, so it
> can be used everywhere. Most compilers treat it like a unsigned short.
>
>
> There is no mention of UTF-16. Furthermore, I would expect to method
> unicode(), to return the UCS-4 representation:
>
> ushort<http://qt-project.org/doc/qt-5.0/qtcore/qtglobal.html#ushort-typedef>
>  QChar::unicode() const
>
> Returns the numeric Unicode value of the QChar<http://qt-project.org/doc/qt-5.0/qtcore/qchar.html>
> .
>
>
> But, it doesn't return the unicode v6.2 value, as that can be 32-bit; I
> know. It gives me the impression that QChar is based on an old Unicode
> standard.
>
> Furthermore (again from the documentation):
>
> Qt 5.0 uses and fully supports version 6.2 of the Unicode standard.
>
>
> At least, I think this is confusing.
>
> So, either the documentation of QChar should at least indicate that it is
> encoded in UTF-16, which I doubt (because then QChar should have place for
> 2 16-bit values), or QChar should be adapted to conform to the statement
> that Qt5.0 is Unicode 6.2 compliant, or it should be indicated that QChar
> conforms to an older standard.
>
> So, I was just wondering how QChar fits within the Unicode 6.2 standard?
> Reading the docs doesn't clarify much.
>
> Kurt
>
> On 08 Sep 2013, at 22:43, Konstantin Ritt <ritt.ks at gmail.com> wrote:
>
>
> Plz read the docs.
>
> Regards,
> Konstantin
>
>
> 2013/9/8 Kurt Pattyn <pattyn.kurt at gmail.com>
>
>> On 08 Sep 2013, at 20:43, Thiago Macieira <thiago.macieira at intel.com>
>> wrote:
>>
>> > On domingo, 8 de setembro de 2013 20:36:39, Kurt Pattyn wrote:
>> >
>> > It's limited by the size of QChar. It cannot contain 0x10000.
>> >
>> Isn't it supposed that a QChar contains a Unicode character (which is
>> 32-bit in size)?
>>
>> Regards,
>> Kurt
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>>
>
>
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