unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: "Daniel Martín" <mardani29@yahoo.es>
To: Stephen Berman <stephen.berman@gmx.net>
Cc: Qiantan Hong <qhong@mit.edu>,
	"emacs-devel@gnu.org" <emacs-devel@gnu.org>
Subject: Re: Question: estimating size of a buffer when written to file?
Date: Wed, 08 Dec 2021 17:29:46 +0100	[thread overview]
Message-ID: <m1ilvzkqkl.fsf@yahoo.es> (raw)
In-Reply-To: <875yrzw0er.fsf@gmx.net> (Stephen Berman's message of "Wed, 08 Dec 2021 17:01:48 +0100")

Stephen Berman <stephen.berman@gmx.net> writes:

> On Wed, 8 Dec 2021 15:55:42 +0000 Qiantan Hong <qhong@mit.edu> wrote:
>
>>> Is (string-bytes (buffer-string)) not reliable?
>>> 
>>> Steve Berman
>> I’m not very familiar with different kinds of encoding,
>> but would some coding system result in final
>> writes longer than internal string-bytes?
>
> I'm afraid I don't know either.
>

Yes, if the coding system is not the UTF-8 variant used by Emacs
internally, the result won't be accurate for some scripts.  You need to
encode the contents of the buffer/string using the value of
buffer-file-coding-system, for example, and call string-bytes on it.



  reply	other threads:[~2021-12-08 16:29 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-08 15:33 Question: estimating size of a buffer when written to file? Qiantan Hong
2021-12-08 15:52 ` Stephen Berman
2021-12-08 15:55   ` Qiantan Hong
2021-12-08 16:01     ` Stephen Berman
2021-12-08 16:29       ` Daniel Martín [this message]
2021-12-08 17:03 ` Stefan Monnier
2021-12-08 17:09   ` Qiantan Hong

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=m1ilvzkqkl.fsf@yahoo.es \
    --to=mardani29@yahoo.es \
    --cc=emacs-devel@gnu.org \
    --cc=qhong@mit.edu \
    --cc=stephen.berman@gmx.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).