GNU bug report logs - #40185
28.0.50; Emacs Calc selection of a sub-formula doesn't highlight it

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Package: emacs;

Reported by: Narendra Joshi <narendraj9 <at> gmail.com>

Date: Sun, 22 Mar 2020 18:25:01 UTC

Severity: normal

Found in version 28.0.50

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

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From: Mattias Engdegård <mattiase <at> acm.org>
To: Narendra Joshi <narendraj9 <at> gmail.com>
Cc: 40185-done <at> debbugs.gnu.org
Subject: bug#40185: #40185: 28.0.50; Emacs Calc selection of a sub-formula doesn't highlight it
Date: Tue, 24 Mar 2020 10:07:27 +0100

23 mars 2020 kl. 23.37 skrev Narendra Joshi <narendraj9 <at> gmail.com>:

> Thanks for the explanation. :) I think I got it. It seems to me that
> porting a large package like `calc` to use lexical binding everywhere
> would mean fixing a lot of such bugs.

Yes, currently only a few files have been converted to lexical binding, and the Calc code relies heavily on dynamic variables everywhere. The code also uses side-effects a lot. Rewriting it in a more modern, functional style would do wonders for maintainability and correctness, but its size and complexity is likely to make it quite an enterprise.

> Is the fix also going to be merged to `master` or will it be merged
> sometime later?

It will be merged in a few days. If not, please send a reminder.
This bug report was last modified 5 years and 55 days ago.

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