Re: Help with Scheme engraver please

[David Nalesnik]

Hi Trevor,

On Tue, Aug 23, 2016 at 3:54 PM, Trevor Daniels <address@hidden> wrote:
> Prompted by the recent discussion on lute tablature, I tried coding a Scheme 
> engraver to create the duration grobs but quickly ran into a problem.  I need 
> to collect information from both a Listener and an Acknowledger so the 
> obvious place to build the grob is in stop-translator-timestep, but my 
> attempts all result in a LilyPond crash.  I'm on Windows Vista, so the crash 
> code is not very helpful - 1073741819.
>
> Minimal examples below.  The first creates a grob from the Listener and works 
> fine.  The second tries to create a grob from stop-translator-timestep and 
> fails.
>
> What am I doing wrong?

I can't explain what's wrong, but creating the grob in process-music
works for me.  You ought to check that you have an event with
ly:stream-event?


Hope this helps a little,
David