Re: music function to be included somewhere in scm/*

[Alexander Kobel]

Hi Knut, hi everybody.

On 2016-12-15 13:34, Knut Petersen wrote:
> Hi Alexander, hi everybody!
>
> > And we might need to offer a way to remove a LyricExtender event.
> > Unless we go the radical route and ...
>
> After a bit of thinking I'd say: go the radical route.
>
> Attached is a patch against current master that implements it that way.

Beautiful. I was afraid of the amount of work this requires, but it's 
also my preferred approach. And it looks like the issue popped up at the 
right time, with a capable person taking care of the dirty details... :-)

> An additional no-extender property
> is added that can only be overridden by the force-extender property.
>
> >  If a user doesn't want it, we need to provide a function \extenderOff
> > (that translates, e.g., to \override LyricExtender.stencil = ##f).
>
> \layout {
>     \Lyrics
>     \override LyricExtender.no-extender = ##t
> }

I like that.

> > Only thing to consider there: We'd need a "stop sign" for extenders
> > that shall only extend to some point in a _ _ _ sequence, as required
> > in a divisi lyrics setting.
>
> "" and \markup\null are usefull, see 5th exampled in attached
> lyrextest.ly/pdf

Works like a charm. If "" is to be recommended in the docs (and I think 
\markup\null is too verbose for that purpose), we should make sure that the
  warning: LyricText has empty extent and non-empty stencil.
is not issued in that case.

> I know that the documentation would need some work, but there is no
> reason to start with that until it is known that the changed code
> would be accepted.

Makes sense. I'm perfectly happy with that patch. Let's wait for some 
more opinions.


Thanks and cheers,
Alexander