Re: Determining location of the staff lines

[Han-Wen Nienhuys]

On Thu, Feb 18, 2010 at 8:54 AM, David Kastrup <address@hidden> wrote:

>> I think it's not yet possible to do this in a Scheme engraver.
>>
>> Han-Wen indicated that it could be done here:
>>
>> http://lists.gnu.org/archive/html/lilypond-devel/2010-01/msg00594.html
>>
>> But I don't think it's been implemented yet.  Perhaps Han-Wen will do so,
>> now that we've identified a need.
>
> Here is one possibility to do this in a somewhat sane manner: permit the
> initialize function to return an alist that can replace elements in the
> Scheme engraver alist.

This would become a mess if there were two scheme engravers doing the
same thing.

> Then you can use let and closures inside of the initialize function in
> order to declare variables local to the functions of one engraver
> instance.
>

I think the local variables will be bound to the wrong thing, and if
two instances of the Scheme engraver do this, they will share their
local variables, with interesting effects.

-- 
Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen