Re: ignore code on include

[Jan-Peter Voigt]

Hi Joram,

I use a scheme-function for that purpose. Here is a cutdown, that shows 
the essential test.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
#(use-modules (ice-9 regex))

#(define-public (test-location? parser location)
  (let ((outname (ly:parser-output-name parser))
        (locname (car (ly:input-file-line-char-column location))))
    (regexp-match? (string-match (format "^(.*/)?~A\\.i?ly$" outname) 
locname))
    ))

#(if (test-location? (*parser*) (*location*)) (display "Yes"))
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

HTH
Jan-Peter

Am 26.04.2017 um 18:36 schrieb Noeck:
> Hi,
>
> in python you can add code under this condition:
> if __name__ == "__main__"
> This way it is only executed if this file is the main file that is
> executed. If the file is only imported ("included"), this code is skipped.
>
> There is nothing similar in LilyPond, is there?
>
> I am asking because it would be handy to have a file soprano.ly with the
> soprano notes which can be included to use them. And if it is run on its
> own, it produces a score containing only the soprano voice.
>
> I know that I can do that with multiple files. But I would be interested
> if that exists.
>
> Cheers,
> Joram
>
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