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bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversi
From: |
Eli Zaretskii |
Subject: |
bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion) |
Date: |
Thu, 22 Jul 2010 22:50:21 +0300 |
> Date: Thu, 22 Jul 2010 15:31:44 +0300
> From: Laimonas Vėbra <laimonas.vebra@gmail.com>
> Cc:
>
> Below is a comment that i wrote for myself in the cmpdproxy.c (it
> explains the problem). I have a half (i suppose -- portable enough) of
> working solution/fix for it using MultiByteToWideChar API function, but
> i won't send a (partly working) patch, unless someone from the
> developers who agree with the problem and intend to fix it will ask for it.
Sorry, I cannot understand your comments. You talk about corrupted
conversion, but never add any detailed explanations, just examples.
Could you please elaborate?
The only thing I understand is that conversion of Unicode characters
to a Windows codepage that doesn't support those characters will be
lossy. That part is clear, but:
. did you try setting up your Windows to use the UTF-8 codepage
65001?
. since Cygwin 1.7 switched to using UTF-8, it parted itself even
further from native Windows applications, so you now have one more
reason to use the Cygwin build of Emacs instead of the native one
> Besides, the patch itself is larger than 10 diff lines and it uses
> (duplicates by copying) some helper functions/declarations
> (open_input_file(), close_file_data(), rva_to_section(),
> w32_executable_type, RVA_TO_PTR) from unexw32.c, so it may need some
> code refactoring.
This means we will be unable to accept the patches, even if we agree
to them, without you signing legal papers assigning copyright to the
FSF.
> how do one can/should (clearly) pass utf-8 arguments to an external
> (cygwin) app on windows? I suppose, now it's not possible.
The Windows build of Emacs doesn't yet use the UTF-16 APIs. Doing
that is a large job; volunteers are welcome, of course. However,
passing UTF-8 arguments to subprocesses is hardly the first or the
most important thing that should be done in that regard, IMO. File
access is much more important, this being an editor.
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Laimonas Vėbra, 2010/07/22
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Jason Rumney, 2010/07/22
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion),
Eli Zaretskii <=
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Laimonas Vėbra, 2010/07/22
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Eli Zaretskii, 2010/07/23
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Laimonas Vėbra, 2010/07/23
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Eli Zaretskii, 2010/07/23
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Laimonas Vėbra, 2010/07/23
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Eli Zaretskii, 2010/07/23
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Laimonas Vėbra, 2010/07/23
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Eli Zaretskii, 2010/07/23
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Laimonas Vėbra, 2010/07/23
- bug#6705: w32 cmdproxy.c pass args to cygwin; erroneous charset conversion (problem description, solution/suggestion), Eli Zaretskii, 2010/07/24