Re: Accessing Context Properties

[David Kastrup]

tisimst <address@hidden> writes:

> On Thu, Feb 25, 2016 at 11:03 AM, David Kastrup [via Lilypond] <
> address@hidden> wrote:
>
>> tisimst <[hidden email]
>> <http:///user/SendEmail.jtp?type=node&node=187726&i=0>> writes:
>>
>> > David,
>> >
>> >> All of that cannot be done from within a music function.  I repeat:
>> >> All they can do is create music expressions (typically overrides or
>> >> applyContext calls, possibly as context modifications) that contain
>> >> callbacks of some form that, when ultimately called during iteration
>> >> of the music expression, will be able to access actual properties.
>> >>
>> >> That has nothing to do with music functions at all but rather with
>> >> the kind of music expressions you'd want the music function to
>> >> create.
>> >
>> > I got that from your first message. I promise. I just am not sure what
>> > this means. Can you point me to a snippet (in the LSR?) that shows
>> > this?
>>
>> Shows _what_?
>
>
> Shows an example of a "kind of music expression you'd want the music
> function to create." If that's too broad a request, don't worry about
> it. I just learn lots better when I have a concrete example to
> dissect. That's all I meant.

git grep ly:context-property

in the top LilyPond directory will dig up a number of "concrete
examples", partly in the documentation, partly in snippets, partly in
code.

-- 
David Kastrup