GNU bug report logs - #47712
27.1; Provide `string-display-width` function, which takes properties into account, `substring-width`

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Package: emacs;

Reported by: Daniel Mendler <mail <at> daniel-mendler.de>

Date: Sun, 11 Apr 2021 21:17:02 UTC

Severity: normal

Found in version 27.1

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Daniel Mendler <mail <at> daniel-mendler.de>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 47712 <at> debbugs.gnu.org
Subject: bug#47712: 27.1; Provide `string-display-width` function, which takes properties into account, `substring-width`
Date: Mon, 12 Apr 2021 16:38:08 +0200

On 4/12/21 4:32 PM, Eli Zaretskii wrote:
> My benchmarking indicates that reusing the buffer makes
> string-pixel-width only 10 times slower than string-width, i.e. 50
> about microseconds per call.

Can you please paste the exact code you used? As I wrote in my previous 
mail, I tried without buffer switching, but it was still 50 times 
slower. 10 times slower is still not good, but given that number I may 
stop arguing, since the factor will be even less in real code.
This bug report was last modified 4 years and 38 days ago.

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