Re: Modify ly:duration->string

Am So., 10. Mai 2026 um 13:37 Uhr schrieb Lukas-Fabian Moser <[email protected]>:
>
> Hi Harm,
>
> Am 10.05.26 um 12:36 schrieb Thomas Morley:
> > consider the following:
> > #(pretty-print (ly:duration->string (ly:make-duration -3)))
> > returning:
> > "log = -3"
> >
> > Is it possible to let it return "maxima" (similar for "longa", "breve")?
> > To be more precise, this is a request to modify ly:duration->string (I
> > have already some clumsy custom code to deal with negative durations).
>
> Of course it's basically no problem to make this change (I assume it's
> the fact that ly:duration->string is implemented in C++ that makes you
> ask this question in the first place).

Indeed.

> But I have a slight issue with that: One might hard-code
> ly:duration->string to output
>
> \maxima
>
> etc. (which I'd prefer to 'maxima', since all other duration strings
> returned by the function are valid LilyPond syntax).

Well, { b$breve } is valid syntax as well, so "breve" would not be that bad.
No strong prefernences here. though.

> But "maxima" is not a term that's baked into the C++ part of LilyPond,
> but it's a (so to speak) arbitrary definition in
> ly/declarations-init.ly. It would, at first glance, feel strange to me
> to implement this term unconditionally in the C++ code as a return
> string for ly:duration->string ...
>
> What do you think?
>
> Lukas
>

Dan pointed to `duration->lily-string`, which is indeed the better
choice for me.
There "\\breve" etc would be returned, hard-coded as well.

Thanks,
  Harm