Re: Simple substitution for oddFooterMarkup?

[Trevor Bača]

On 11/2/06, Mats Bengtsson <address@hidden> wrote:
> Trevor Bača wrote:
> > Hi,
> >
> > I've been looking over 12.1 and 12.4 and I'm still struggling with the
> > following task:
> >
> > I want to store
> >
> >  boldPageNumber = \markup { \fill-line { \bold \fontsize #3
> > \on-the-fly #print-page-number-check-first \fromproperty
> > #'page:page-number-string } }
> >
> > in a standard include file called standard.ly and then write
> >
> >  \include "standard.ly"
> >
> >  \paper {
> >    oddFooterMarkup = \boldPageNumber
> >  }
> >
> > This isn't right, however. The interpreter says
> >
> >  Parsing...ERROR: Unbound variable: print-page-number-check-first
> >
> > Can anyone help with the right way to store the longish markup command
> > in an external file for inclusion later in the paper block?
> >
> You probably have to copy the definition of
> print-page-number-check-first from
> ly/titling-init.ly into your include file. The reason is probably that
> it's defined using
> (define ...) instead of (define-public ...) and that your function
> definition is
> outside the "scope" of the definitions in titling-init.ly (I don't know
> any details
> on how this works, though).

Hm; maybe it simplifies things a bit to get rid of the include file
and do the example in a single file like this?

%%% BEGIN %%%

\version "2.9.27"

boldNumber = \markup { \fill-line { \bold \fontsize #3 \on-the-fly
#print-page-number-check-first \fromproperty #'page:page-number-string
} }

\paper {
 oddFooterMarkup = \boldNumber
}

\new Staff {
  c'4
}

%%% END %%%

And here the same parser error arises ...

 Parsing...ERROR: Unbound variable: print-page-number-check-first

... which makes me think that maybe there's something going on other
than a scoping error.

Come to think of it, is it even possible to define a substitution for
the righthand side of an assignment like this (where the righthand
side isn't actually a (music) expression but is markup instead)?

I'd love something like ...

boldNumber = "\markup { \fill-line { \bold \fontsize #3 \on-the-fly
#print-page-number-check-first \fromproperty #'page:page-number-string
} }"

  \paper {
    oddFooterMarkup = \eval boldNumber
  }

... but this generates a syntax error:

Parsing...
342.ly:7:0: error: syntax error, unexpected '}', expecting '='

}



--
Trevor Bača
address@hidden