Add a clarification about "characters" to QTextCursor docs

The function name QTextCursor::positionInBlock() may give users the
idea that it can be displayed to the user as the visual position of
the cursor in the current block. This becomes confusing with some
writing systems, since e.g. a surrogate pair will count as two
characters while only representing a single visual grapheme.

Since it is an side effect of the encoding that will be unexpected to
many, and since it also touches on some linguistic complexities, we
add a note to the documentation to make users aware of the
consideration needed.

Task-number: QTBUG-74725
Change-Id: Iba28ba8a6ad07ee38dbb7e6a5a4b68c93d4da76a
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: René J.V. Bertin <rjvbertin@gmail.com>
Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>

0 files changed, 0 insertions, 0 deletions