[Lilypond-auto] Issue 2952 in lilypond: Upgrade documentation of \once

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Documentation

New issue 2952 by address@hidden: Upgrade documentation of \once
http://code.google.com/p/lilypond/issues/detail?id=2952


\once was changed to a music function able to operate
on predefined variables and "complex stuff" on
6 Nov 2011 (see Issue 2003 and committish
ddce9767f975c989800cb99e003039a8bf050b45) but the
documentation still says this is not possible.
See for example the comment after the table of pre-defined
commands in LM 4.4.2:
http://grenouille.lilynet.net/lilypond-web/master/Documentation/learning/within_002dstaff-objects.html
and NR 5.3.3
http://grenouille.lilynet.net/lilypond-web/master/Documentation/notation/the-override-command.html

This issue partly overlaps with the fix in preparation
for Issue 2870 and could perhaps be folded into it.

Trevor