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Re: Shortcut for \repeat unfold

From: Werner LEMBERG
Subject: Re: Shortcut for \repeat unfold
Date: Wed, 29 Sep 2021 06:48:33 +0000 (UTC)

>> 28x { d a b fs | g d g a }
> That is a clever proposal. I am already fond of it.  Thank you.


>> I like that, thanks!  Carl's concerns w.r.t. whitespace are valid,
>> though.  Would it be possible to make the invalid syntax '28 x'
>> produce a nice error message like
>>    invalid <whatever>,  did you mean '28x'?
> It's not unconceivable to build whitespace into the lexer pattern
> and have { 5 x c'1 } work.  [...]

Aah, nice :-)

> What this means is that if you create a custom note name language
> (with the undocumented not-yet-having-interface #(set!
> language-pitch-names (acons 'mylang my-pitch-alist
> language-pitch-names))), you won't be able to call a note 'x',
> because
> { c4 x4 }
> will be understood as
> { c 4x 4 }
> I don't see that as a big deal.  Using 'r' or 'R' or 'q' as a note
> name is already not supported.  To me, the addition of this
> shorthand is worth a new element on this list.

I agree.


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