Re: Add an example implementation of cross-staff stems (issue 5882053)

[dak]

http://codereview.appspot.com/5882053/diff/2001/input/regression/stem-cross-staff-engraver.ly
File input/regression/stem-cross-staff-engraver.ly (right):

http://codereview.appspot.com/5882053/diff/2001/input/regression/stem-cross-staff-engraver.ly#newcode100
input/regression/stem-cross-staff-engraver.ly:100: `((acknowledgers
Why don't you use make-engraver here?  Instead of the backquoted list,
you write

(make-engraver
 (acknowledgers
  ((stem-interface trans grob source)
   (set! stems (cons grob stems))))     
 ((process-acknowledged trans)
  (make-stem-spans! ctx stems trans)
  (set! stems '())))

It is easier on the eyes.

http://codereview.appspot.com/5882053/