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Re: global alignment tweak for ChordName

From: David Kastrup
Subject: Re: global alignment tweak for ChordName
Date: Tue, 21 Dec 2021 22:29:36 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

Jean Abou Samra <> writes:

> [Valentin]
>> Hello Jean, hello David, hello Kieren,
>> you should even be able to write (if sten (ly:stencil-extent sten)),
>> as the stencil should always be a stencil or #f.
> The two universally accepted values for any property
> regardless of the predicate are #f and '(), so it
> may still be '(), which is why checking with specific
> predicates like this is often used in LilyPond's
> source.

'() is a bit of an ugly cookie since it for some reason has been chosen
to be the default for unset properties (seems like a Lisp rather than
Scheme idea to me) but shouldn't be used by users for stuff not formally
fitting the predicate.

In my handwavy impression of trying to sort-of guess unwritten coding

David Kastrup

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