From: Chong Yidong <cyd@stupidchicken.com>
Cc: emacs-devel@gnu.org
Subject: Re: [wenbinye@gmail.com: hexl-max-address in hexl-mode is incorrect]
Date: Wed, 22 Nov 2006 11:02:22 -0500 [thread overview]
Message-ID: <87bqmzo4fl.fsf@cyd.mit.edu> (raw)
In-Reply-To: <E1Glhaj-0008Bt-Kt@fencepost.gnu.org> (Richard Stallman's message of "Sun\, 19 Nov 2006 02\:59\:53 -0500")
> The hexl-max-address usually set to buffer-size, but when the buffer
> contain a multiple byte character or the file associated to the buffer
> is encoded by multibyte coding system such as utf-16, the
> hexl-max-address is usually less the the real byte of buffer.
>
> You can test like this:
>
> Test case 2:
> Open a new file, such as /tmp/test.txt. Use C-x RET f to set the file
> coding system to utf-16. Input any letters such as "ab", and save the
> buffer. Then change mode to hexl-mode. C-h v hexl-max-address show the
> value is still 2 which is the buffer-size rather than the sizze of the
> file.
>
> Here is my solution to set hexl-max-address which might help:
> (setq hexl-max-address
> (1- (if buffer-file-name
> (nth 7 (file-attributes buffer-file-name))
> (length
> (decode-coding-string (buffer-string)
> buffer-file-coding-system)))))
The (nth 7 (file-attributes buffer-file-name)) method returns the
correct byte count. However, the
(decode-coding-string (buffer-string) buffer-file-coding-system)
method doesn't seem to work for me; it returns erratic incorrect
results. In the case of a utf-16 buffer containing just "ab" without
an associated file, it returns 1; if there is an associated buffer, it
returns 0.
next prev parent reply other threads:[~2006-11-22 16:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-19 7:59 [wenbinye@gmail.com: hexl-max-address in hexl-mode is incorrect] Richard Stallman
2006-11-22 16:02 ` Chong Yidong [this message]
2006-11-22 16:59 ` Chong Yidong
2006-11-22 17:15 ` Kevin Rodgers
2006-11-22 22:02 ` Chong Yidong
2006-11-27 19:09 ` Stuart D. Herring
2006-11-28 0:48 ` Kenichi Handa
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