Hi Kieren,
On Wed, Jul 31, 2013 at 5:59 PM, Kieren MacMillan <
kieren_macmil...@sympatico.ca> wrote:
> Hi David,
>
> > Using empty-stencil rather than your own call of ly:make-stencil should
> > work for more versions.
>
> This sounds useful… but I don't quite know what you are suggesting I do.
> Do you mean this (which appears to work, but still uses ly:make-stencil):
>
> #(define-markup-command (when-property layout props symbol markp) (symbol?
> markup?)
> (if (chain-assoc-get symbol props)
> (interpret-markup layout props markp)
> (ly:make-stencil empty-stencil)))
>
> ?
>
> I tried a lot of things without ly:make-stencil, and they all failed.
>
>
empty-stencil is defined as
(ly:make-stencil '() empty-interval empty-interval)
so the ly:make-stencil in your function is unneccesary. All you need to do
is the following:
#(define-markup-command (when-property layout props symbol markp) (symbol?
markup?)
(if (chain-assoc-get symbol props)
(interpret-markup layout props markp)
empty-stencil))
--David
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