Slashed beam

[Paolo Prete]

Hi,

is there a way to have a slash on the beam of a _sequence_ of notes?
 
Something like a slash for an acciaccatura with multiple notes, but intended 
for normal (not acciaccatura) notes.

This piece of code wuold be very useful, but it doesn't compile on 2.15.21

http://lists.gnu.org/archive/html/lilypond-user/2007-04/msg00422.html

At least, how can I modify it so to compile it?


thanks and merry christmas!
Paolo