QXmlStreamWriter: prepare for port to QAnyStringView

The UTF-8 support in Qt is still lacking, so QUtf8StringView doesn't,
yet, have the likes of contains(), endsWith(), etc that the existing
QString code uses in Q_ASSERTs.

Provide free functions that work for UTF-8 haystacks and ASCII needles
by falling back to QByteArrayView or QLatin1StringView.

Also break a replace() use into a series of indexOf() + chunked
write(). This is rather expensive for QString, so port the
writeCDATA() function that uses this to QAnyStringView already, ahead
of the bulk of the changes in Mate's follow-up patch.

Task-number: QTBUG-103302
Change-Id: Ic66261740817ede2600b78a383cf667a31df7bfc
Reviewed-by: Fabian Kosmale <[email protected]>
Reviewed-by: Marc Mutz <[email protected]>
Reviewed-by: Ivan Solovev <[email protected]>
Reviewed-by: Tatiana Borisova <[email protected]>

0 files changed, 0 insertions, 0 deletions