Re: Alternate (scheme) text spanner ignores spacers

[David Nalesnik]

Hi Rutger,

On Fri, Oct 7, 2016 at 2:30 AM, Rutger Hofman <address@hidden> wrote:
> Hello list,
>
> David Nalesnik wrote a scheme TextSpanner that honours the spanner-id
> predicate. This is really, really great: I no longer have to create new
> Voices for overlapping TextSpanners. But it has a feature/bug that is really
> unwelcome: if the \stopTextSpan is after a spacer note (maybe by using David
> Kastrup's now famous \after), this spacing is ignored. The right-bound text
> appears immediately after the 'true' note.
>
> Two observations:
>  - the standard TextSpanner behaves correctly
>  - the TextSpanner in scheme, which David N. used as an example, also has
> the feature/bug
>
> Alternate text spanner:
> https://lists.gnu.org/archive/html/lilypond-devel/2015-10/msg00042.html
>
> Attached a minimal example of correct/buggy behaviour, and, for ease of
> reference, David N.'s implementation.
>
> I would dearly love to see this fixed, but I have no idea where to look.

This engraver is based on the regression test
'scheme-text-spanner.ly', which suffers from the same limitation.
I'll see what I can figure out.

David