Re: Dot-separated list as music function argument

[Jan-Peter Voigt]

Am 09.07.14 15:15, schrieb David Kastrup:
> No.  If we have some Word in the place of a function argument, LilyPond
> tries interpreting it as a string first.  If the predicate refuses to
> accept that, the next try is as a one-element symbol list.  If that gets
> accepted, the parser checks whether this symbol list can be extended
> with .AnotherWord following.  If the predicate refuses a symbol list,
> however, LilyPond tries feeding it a single symbol before giving up.
> >Still, wrapped predicates do not get any special handling by th parser.
> No predicate at all gets special handling by the parser in music
> functions any more (as of issue 3618, version 2.17.29).  You can wrap
> them all you want.  LilyPond actually calls the predicates (often
> several times, sometimes on partially parsed input) to make its parsing
> decisions.
thank you, now I understand
> But then that change has not had a lot of publicity: you'll see that
> (apart from administrative comments) I have been the only commenter on
> issue and code review.
I see
> Things are different for markup command arguments: those have not gotten
> the whole treatment that music/scheme function arguments have.  It would
> be a completely different bag of tricks to do so in markup mode.
I thought so. It would be nice, but I would not call it that important.

Best, Jan-Peter