Re: report a programming error when trying to align on empty parent (issue 7533046)

[janek . lilypond]

On 2013/03/23 16:38:21, t.daniels_treda.co.uk wrote:
> A 'programming error' should be issued only when an internal
inconsistency
> in LilyPond's code or data structures is detected.  Any such message
should
> always result in a bug being reported and tracked.  If the problem is
due to
> suspect user code a warning or error should be issued.  In this case
maybe
> a warning is appropriate.

Thanks, Trevor!  This sheds some light on this situation.
After rereading David's comments i've come to the conclusion that there
should be no programming errors reported when extents are empty, so i've
sent a new patchset which makes Lily behaviour consistent in this
regard.

thanks,
Janek

https://codereview.appspot.com/7533046/