Re: put footnote in a variable

[Aaron Hill]

On 2018-11-01 2:59 am, Gianmaria Lari wrote:
> Ahem.... I found another issue Aaron.
>
> Suppose you have a variable containing the music and the reference to 
> your
> footnote code. Something like this:
>
> var = {a b c d \myfootnote e f g a}
>
>
> If you 'use' the variable multiple time in your score you probably 
> don't
> want to display the footnote multiple times. So if you write
>
> { \var \var \var }
>
>
> you probably want just one footnote.
>
> So I tried to write
>
> var = {a b c d \tag #'footnotetag {} e f g a}
>
>
> and then...
>
> {\pushToTag #'footnotetag \myfootnote \var \var \var}
>
>
> but this does not compile.
> Does exists a simple workaround to make it working? (I made different
> experiments without success). If there is no simple solution, no 
> problem,
> don't waste your time. Consider this just a curiosity. Thanks a lot,
> gianmaria

To clarify, when you use { \var \var \var }, is it your intention that 
you want the footnote to be shared amongst the multiple instantiations?

If that is the case, then there is an edge case that would need to be 
addressed too.  Imagine if \var occurs on multiple pages.  Each one 
would ideally need a footnote on its own page, but if two (or more) 
instances of \var occur on the same page, then you would ideally want 
them to be able to share.

Unfortunately, I haven't dug into the footnote code enough to know 
whether such a scheme is possible.  I think each \footnote is uniquely 
identified behind the scenes.  Obviously, you can always cheat and 
simulate the footnote markup wherever you see fit, but it would be handy 
to have a more automated system.

-- Aaron Hill