From: Eli Zaretskii <eliz@gnu.org>
To: Noam Postavsky <npostavs@gmail.com>
Cc: 31588@debbugs.gnu.org, jpa4q@virginia.edu
Subject: bug#31588: 26.1; format counts some Unicode characters as two
Date: Fri, 25 May 2018 09:37:32 +0300 [thread overview]
Message-ID: <83lgc89r6b.fsf@gnu.org> (raw)
In-Reply-To: <87in7cfti2.fsf@gmail.com> (message from Noam Postavsky on Thu, 24 May 2018 20:50:45 -0400)
> From: Noam Postavsky <npostavs@gmail.com>
> Date: Thu, 24 May 2018 20:50:45 -0400
> Cc: 31588@debbugs.gnu.org
>
> > As far as I can tell, something is off about the styled_format and how
> > it counts characters- I suspect something about counting
> > multibyte characters, but it's a little beyond me.
>
> I think it's intended, ➖ and ❌ are wide characters:
>
> (mapcar #'char-width '(?➖ ?❌ ?▶ ?✚ ?▷ ?◼))
> ;=> (2 2 1 1 1 1)
Yes, that's the reason.
> Although in my current font the width seems to be more like 1.8 or
> something.
Unfortunately, the actual width depends on the font, and what's more,
sometimes varies significantly between different fonts. Maybe we
should have a variant of char-width that actually looks at the font
(of course, such a variant will need a window or frame as one of its
arguments).
But with the current state of our support for wide characters, this is
not a bug.
next prev parent reply other threads:[~2018-05-25 6:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-25 0:36 bug#31588: 26.1; format counts some Unicode characters as two James P. Ascher
2018-05-25 0:50 ` Noam Postavsky
2018-05-25 6:37 ` Eli Zaretskii [this message]
2018-06-03 16:29 ` Noam Postavsky
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