From: Juri Linkov <juri@linkov.net>
To: Eli Zaretskii <eliz@gnu.org>
Cc: spacibba@aol.com, bugs@gnu.support, andreyk.mad@gmail.com,
emacs-devel@gnu.org, contovob@tcd.ie, rudalics@gmx.at,
monnier@iro.umontreal.ca, ghe@sdf.org, drew.adams@oracle.com
Subject: Re: on helm substantial differences
Date: Sun, 22 Nov 2020 22:11:01 +0200 [thread overview]
Message-ID: <87blfp2luy.fsf@mail.linkov.net> (raw)
In-Reply-To: <83lfetxvuv.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 22 Nov 2020 17:19:20 +0200")
>> 𒐫 CUNEIFORM NUMERIC SIGN NINE SHAR2
>
> On GUI frames, this depends on the font in use. You cannot really
> rely on char-width to solve this.
>
>> Maybe there is another function that could return the real number of
>> tab columns a character takes on the screen?
>
> There is: font-get-glyphs. But I'd recommend to just use a TAB of a
> suitable width instead of dealing with the complexity that
> font-get-glyphs requires.
I can't find a suitable width for TAB: 5 makes a too wide gap between
a character and its name, and with 4 some characters are misaligned.
But despite the complexity of font-get-glyphs, is it reasonably fast?
I tried to rely on next-line that moves to the beginning of the line
on the character wider that a previous character on the previous line,
and keep increasing the current column while moving over all character lines:
(with-temp-buffer
(dotimes (c (max-char))
(insert c ?\n))
(insert "1234567890\n")
(goto-char (point-min))
(dotimes (c (max-char))
(when (bolp) (forward-char))
(next-line))
(current-column))
But it takes too much time on all characters.
next prev parent reply other threads:[~2020-11-22 20:11 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-12 17:42 on helm substantial differences Drew Adams
2020-11-13 21:16 ` Jean Louis
2020-11-15 11:49 ` Jean Louis
2020-11-15 20:07 ` Juri Linkov
2020-11-15 22:01 ` Stefan Monnier
2020-11-15 22:41 ` Drew Adams
2020-11-16 8:58 ` Juri Linkov
2020-11-16 16:03 ` Drew Adams
2020-11-16 17:36 ` Stefan Monnier
2020-11-16 20:38 ` Juri Linkov
2020-11-16 21:54 ` Stefan Monnier
2020-11-17 19:18 ` Juri Linkov
2020-11-17 20:32 ` Juri Linkov
2020-11-18 9:10 ` Juri Linkov
2020-11-18 11:38 ` Basil L. Contovounesios
2020-11-18 19:13 ` Juri Linkov
2020-11-18 20:33 ` Juri Linkov
2020-11-20 9:24 ` Juri Linkov
2020-11-20 11:57 ` Eli Zaretskii
2020-11-20 12:15 ` Eli Zaretskii
2020-11-20 14:39 ` Stefan Monnier
2020-11-21 20:18 ` Juri Linkov
2020-11-22 3:33 ` Eli Zaretskii
2020-11-22 8:36 ` Juri Linkov
2020-11-22 15:19 ` Eli Zaretskii
2020-11-22 20:11 ` Juri Linkov [this message]
2020-11-23 3:24 ` Eli Zaretskii
2020-11-25 9:10 ` Juri Linkov
2020-11-25 15:51 ` Eli Zaretskii
2020-11-25 19:16 ` Juri Linkov
2020-11-25 19:59 ` Eli Zaretskii
2020-11-25 20:35 ` Juri Linkov
2020-11-26 13:45 ` Eli Zaretskii
2020-11-27 8:45 ` Juri Linkov
2020-11-27 8:58 ` Eli Zaretskii
2020-11-27 9:17 ` Juri Linkov
2020-11-17 21:14 ` Jean Louis
2020-11-18 9:03 ` Juri Linkov
2020-11-18 19:21 ` Juri Linkov
2020-11-18 22:04 ` select yank via completion Stefan Monnier
2020-11-18 23:02 ` Drew Adams
2020-11-19 7:54 ` Juri Linkov
2020-11-19 17:00 ` Drew Adams
2020-11-20 8:53 ` Juri Linkov
2020-11-20 11:53 ` Eli Zaretskii
2020-11-21 19:38 ` Juri Linkov
2020-11-21 19:57 ` Eli Zaretskii
2020-11-21 20:43 ` Juri Linkov
2020-11-20 14:23 ` Stefan Monnier
2020-11-21 19:42 ` Juri Linkov
2020-11-21 21:08 ` Stefan Monnier
2020-11-21 22:21 ` Drew Adams
2020-11-21 22:48 ` Jean Louis
2020-11-21 23:00 ` Jean Louis
2020-11-25 19:25 ` Juri Linkov
2020-11-25 19:40 ` Drew Adams
2020-11-21 21:54 ` Drew Adams
2020-11-21 21:46 ` Drew Adams
2020-11-24 22:59 ` Basil L. Contovounesios
2020-11-25 7:36 ` Juri Linkov
2020-11-25 8:14 ` Andrii Kolomoiets
2020-11-25 20:24 ` Juri Linkov
2020-11-26 8:46 ` Basil L. Contovounesios
2020-11-26 9:26 ` Juri Linkov
2020-11-26 9:57 ` Eli Zaretskii
2020-11-26 21:17 ` Basil L. Contovounesios
2020-11-27 7:13 ` Eli Zaretskii
2020-11-27 9:01 ` Juri Linkov
2020-11-18 22:36 ` on helm substantial differences Drew Adams
2020-11-16 16:13 ` Eli Zaretskii
2020-11-16 20:41 ` Juri Linkov
2020-11-16 21:18 ` Drew Adams
2020-11-16 22:13 ` Juri Linkov
2020-11-17 0:04 ` Drew Adams
2020-11-17 8:38 ` Juri Linkov
2020-11-17 16:56 ` Drew Adams
2020-11-17 12:06 ` Protesilaos Stavrou
2020-11-17 17:29 ` Drew Adams
2020-11-17 19:23 ` Juri Linkov
2020-11-17 3:24 ` Eli Zaretskii
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