Re: [PATCH] emacs: Add more front ends for address completion

[Utkarsh Singh <utkarsh190601@gmail.com>]

Hello David,

First of all, apologies for the late reply.  It would have been much
better if Alexander could himself purposed the solution he is developing.

On 2022-03-20, 07:49 -0300, David Bremner <david@tethera.net> wrote:

> Utkarsh Singh <utkarsh190601@gmail.com> writes:
>
>> Thank you for working on this issue.  But from now, its up to Notmuch
>> maintainers to decide whether or not they want any improvements in
>> `notmuch-address.el'.
>
> Can you be more precise about what you are asking / proposing here?
> Assume I only skimmed the thread.

Currently, notmuch-address.el, the library used to generate completion
candidates for recipient's addresses in Notmuch's message compostion
mode uses non-standard Emacs API's for in-buffer completion, namely
completing-read and Company.  Now these API's makes it difficult to
utilize alternative in-buffer completion UI such as Corfu(1).

These are the proposed solutions for the given problem:

1. Add completion-at-point to the existing sets of frontend.  As noted
by Tomi, this is a "messy" solution as it unnecessarily obfuscate the
user options `notmuch-address-selection-function' and
`notmuch-address-command'.

2. Make notmuch-address.el itself a backend for EUDC(2).  As stated by
Alexander, this will not only remove any frontend related code from
notmuch-address.el, but will also unify completion condidates for other
sources such as BBDB, LDAP, MacOS Contacts, etc.

Thank you,
Utkarsh Singh

[1]: https://github.com/minad/vertico
[2]: https://www.gnu.org/software/emacs/manual/html_mono/eudc.html

-- 
Utkarsh Singh
https://utkarshsingh.xyz/