From: Eli Zaretskii <eliz@gnu.org>
To: Chunyang Xu <mail@xuchunyang.me>
Cc: 29364@debbugs.gnu.org
Subject: bug#29364: 27.0.50; Word Wrap doesn't support CJK
Date: Mon, 20 Nov 2017 20:22:09 +0200 [thread overview]
Message-ID: <83zi7gdd4e.fsf@gnu.org> (raw)
In-Reply-To: <m260a5nn6f.fsf@xuchunyang.me> (message from Chunyang Xu on Mon, 20 Nov 2017 20:34:48 +0800)
> From: Chunyang Xu <mail@xuchunyang.me>
> Date: Mon, 20 Nov 2017 20:34:48 +0800
>
> the point is, Chinese doesn't have to rely on space to break, it can
> break at anywhere but with some exceptions, such as, after breaking, the
> punctuation mark can not be at the beginning of the line, so the
> following is also incorrect:
>
> -----------------------------------------------------
> 文字文字 English 文字文字文字文字文字文字文字文字文字
> 文字文字文字文字文字文字文字文字文字文字文字文字文字
> 。
> -----------------------------------------------------
>
> for this width, it should display:
>
> -----------------------------------------------------
> 文字文字 English 文字文字文字文字文字文字文字文字文字
> 文字文字文字文字文字文字文字文字文字文字文字文字文
> 字。
> -----------------------------------------------------
>
> \f
> Some applications such as Chrome (web browser) and Atom (text edit) can
> wrap CJK text, and Atom added CJK wrapping support by this patch:
>
> - https://github.com/atom/atom/pull/9162
>
> There is an article from Wikipedia explaining how to break CJK text:
>
> - https://en.wikipedia.org/wiki/Line_breaking_rules_in_East_Asian_languages
Emacs has an implementation of those rules in kinsoku.el. Word-wrap
is done on the C level in the display engine; volunteers are welcome
to submit patches for honoring Kinsoku rules on that level. The
challenge is to do so without slowing down redisplay.
Thanks.
next prev parent reply other threads:[~2017-11-20 18:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-20 12:34 bug#29364: 27.0.50; Word Wrap doesn't support CJK Chunyang Xu
2017-11-20 18:22 ` Eli Zaretskii [this message]
2021-02-04 14:05 ` Lars Ingebrigtsen
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