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Re: Simplification of `affixation-function`

From: Daniel Mendler
Subject: Re: Simplification of `affixation-function`
Date: Sun, 25 Apr 2021 00:01:01 +0200

On 4/24/21 11:41 PM, Juri Linkov wrote:> We could just change the documentation of ‘affixation-function’ to define
only one supported way of using the “completion + prefix + suffix” format
to reduce confusion.

This is a "resolution" I would not be happy with. We still keep around an obsolete format (which has only been introduced a few months ago) and then keep it out of the documentation. I think it is preferable to correct the definition then.

But it is okay to keep the current definition if you think the costs of a change outweigh the benefits.

> I'd prefer to support additional text using keywords, e.g.
> ("completion" "prefix" "suffix" :help "Help text")

The suggestion with the keywords is nice. If you plan to allow such additional keywords, this should be documented then, since completion UIs rely on the documentation when they implement support for the function. Which formats will be allowed? We already have `(candidate suffix)` and `(candidate prefix suffix)`.

For extensibility one may want to add

(candidate :prefix prefix :suffix suffix :other-keys...)

or as you proposed

(candidate prefix suffix :other-keys...).


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