Re: Scheme function to output \bookpart {} ?

[Simon Albrecht]

On 23.09.2015 23:43, David Kastrup wrote:
> Thomas Morley <address@hidden> writes:
>
> > 2015-09-23 17:50 GMT+02:00 Simon Albrecht <address@hidden>:
> > > Hello,
> > >
> > > is it possible to have a Scheme function output a bookpart? In the attached
> > > example and my real-world setup, I get ‘error: bad expression type’.
> > >
> > > TIA, Simon
> > Hi Simon,
> >
> > this may give you a starting point:
> >
> > \version "2.19.27"
> >
> > test =
> > #(define-scheme-function (mus) (ly:music?)
> >    (ly:book-process
> >      (ly:make-book-part (list (ly:make-score mus)))
> >      $defaultpaper
> >      $defaultlayout
> >      (ly:parser-output-name)))
> >
> > m = { c'4 }
> >
> > \test \m
> Turns out I have some half-finished branch "bookactive" in my
> repository.  I just don't remember any more what the problem was.

Meaning? That you think about simplifying the interface/making something 
like my first example work? Which would of course be very honourable :-)

Yours, Simon