Re: String to scheme

[Paolo Prete]

Hi Thomas,

after meditating about it, I developed the same conclusion. The approach is wrong, and I already have better alternatives. 

Then an example would be only misleading...

Thank you anyway!

Best,

P

On Mon, Jan 20, 2020 at 11:12 PM Thomas Morley <address@hidden> wrote:

Am Mo., 20. Jan. 2020 um 22:37 Uhr schrieb Paolo Prete <address@hidden>:
>
> Hello,
>
> is it possible to make a music _expression_ from strings? It would be useful for building expressions with combination of string chunks. Something like:
>
> %%%%
> \version "2.19.45"
>
> strToMusicExpr = #(define-music-function (parser location token1 token2 token3 mus) (string? string? string? ly:music?)
> #{
>     $token1 $token2 $token3 $mus
> #})
>
> {
>    \strToMusicExpr "\\tweak" "NoteHead.color" "#red"
>    c'
> }
> %%%%
>
> I see that there's a ly:parser-parse-string function. But nor I understand if it's safe, nor how does it work, nor if it's the right way to achieve what I want...
>
> Thanks
> P
>
>

Hi Paolo,

apart from the question whether it's possible and how, this approach
feels wrong.

Could you give some (pseude-code-) examples where you think you need it?


Cheers,
  Harm