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bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order ma
From: |
Stefan Monnier |
Subject: |
bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark |
Date: |
Mon, 10 Aug 2009 15:45:29 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux) |
>> Btw, I doubt that any encoding that uses BOM can ever be appropriate
>> for encoding command-line arguments. Maybe we should treat them
>> specially in call-process and its ilk.
> The bug is that hexlify-buffer assumes that manually encoding the
> command line stops call-process from encoding it again, which does not
> work: coding-system-for-write takes absolute precedence. IMHO
> call-process should not use coding-system-for-write for encoding the
> command line, if at all there should be a separate override.
I believe we've bumped into this problem already in the past.
To me, it's clear that call-process should be careful about coding
arguments, since the coding-system to use may depend on the argument
and/or the command, so in general the caller will want to specify
explicitly some coding system for the arguments, including a different
coding system for each argument. An override var might be a good idea,
but it won't cater to the case where each arg requires a different
encoding, so the most important thing is to make sure that unibyte args
don't get re-encoded.
Unless Handa objects, I'd recommend we change encode_coding_string to be
a nop on unibyte strings (tho, we may want to let it obey EOL
conversions). If there are good reasons not to do that, then
Fcall_process should be changed to not call encode_coding_string on
unibyte strings.
Stefan
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, (continued)
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Pierre Bogossian, 2009/08/07
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Eli Zaretskii, 2009/08/08
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Eli Zaretskii, 2009/08/08
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Andreas Schwab, 2009/08/08
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Eli Zaretskii, 2009/08/08
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Lennart Borgman, 2009/08/08
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Eli Zaretskii, 2009/08/08
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Andreas Schwab, 2009/08/08
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Eli Zaretskii, 2009/08/08
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Lennart Borgman, 2009/08/08
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark,
Stefan Monnier <=
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Kenichi Handa, 2009/08/10
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Eli Zaretskii, 2009/08/14
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Eli Zaretskii, 2009/08/21
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Kenichi Handa, 2009/08/21
- Message not available
- bug#4047: 23.1.1: hexl-mode doesn't like UTF8 files with a byte-order mark, Kenichi Handa, 2009/08/27