From kde-core-devel  Mon Sep 01 06:27:36 2008
From: Thiago Macieira <thiago () kde ! org>
Date: Mon, 01 Sep 2008 06:27:36 +0000
To: kde-core-devel
Subject: Re: Encoding problem in the file ioslave
Message-Id: <200809010827.44528.thiago () kde ! org>
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Michael Pyne wrote:
>Well it would still be nice if people were able to open files that are
> sitting there right on the disk. =A0Even after you extract the tar you
> cannot navigate into the directory with Dolphin. =A0And the directory
> really is there.

You can't.

QFile won't let you because there's no way you can represent a broken=20
encoding in QString. QDir and QDirIterator will also simply skip the file=20
as if it didn't exist.

Be careful if you choose to change everything to QByteArray. The KIO=20
protocol is well established, so you can't change the meaning of anything=20
there. I would recommend instead to use the URL field, but be really=20
careful to use the encoded components of QUrl/KUrl: QUrl suffers from the=20
same problem of not being able to represent a random binary byte in a=20
QString, so it simply won't.

And if you use QUrl or QByteArray, you'll have to completely bypass QFile=20
everywhere! I.e. you'll have to use the native 8-bit functions like=20
open(2) or fopen(3) and *never* QFile.

Also remember that Windows (we seem to care about that platform now,=20
right?) uses Unicode to store filenames. If you convert from Unicode to=20
8-bit, make sure you're using UTF-8, not the local encoding for that=20
platform, or use URLs. So in the everywhere above where you converted=20
from QFile to the non-Win32 functions, be sure to use the local encoding=20
on Unix, but UTF-8 on Windows.

=2D-=20
=A0 Thiago Macieira =A0- =A0thiago (AT) macieira.info - thiago (AT) kde.org
=A0 =A0 PGP/GPG: 0x6EF45358; fingerprint:
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