On Thu, Apr 14, 2011 at 09:25:32AM -0600, Carl Sorensen wrote: > > On 4/14/11 1:47 AM, "Graham Percival" <gra...@percival-music.ca> wrote: > > > produces the following (with linebreaks and indents added). I'm > > really confused about the multiple "bound-details", the multiple > > "left/right" inside each bound-details, etc. How can I make sure I > > get the bound-details that I want, without using plain old (car ...) ? > > The correct bound-details is the first one (overrides are prepended; the old > values are not removed). > > The proper way to do it is something like > > (let* ((spanner-props (ly:context-property context 'TextSpanner)) > (details (assoc-get 'bound-details spanner-props '()))
huh, I had no idea how alists worked. I finally went and skimmed the Extending manual, and discovered chain-assoc-get. The above code doesn't work (it returns the wrong set of 'bound-details), but it works with chain-assoc-get. Thanks for pointing me in the right direction, Carl! Cheers, - Graham _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
