Re: Has anyone extended \include?

[Nicolas Sceaux]

"Rick Hansen (aka RickH)" <address@hidden> writes:

> Has anyone on this list extended the \include lilypond command to also do
> simple token replacement as it is "including" the text?  IOW like this:
>
> \include "myFile.ly" @myToken1=a; @myToken2=25; @myToken3="replace with
> this"
>
> Whereby @myToken1, 2 and 3 above will be whole word searched and replaced
> with the data between the = sign and semi-colon.
>
> Or similar?
>
> Kind of like a "smart" \include?
>
> If you have done this can you share it or sell it to me?  (please dont
> suggest m4, I gave up on that monster)

I use in my scores some functions called \includeScore, \includeNotes,
\includeLyrics, etc. You can look at the sources at
<http://nicolas.sceaux.free.fr/lully/> or this article:
<http://nicolas.sceaux.free.fr/index.php/2006/06/29/9>

The LilyPond distribution has a function that makes a conditional
include: see \includePageLayoutFile in ly/music-functions-init.ly.

But then, there is no textual replacement when parsing LilyPond file;
instead you should use variables.

%% The function definition:
myInclude =
#(define-music-function (parser location filename bindings)
                        (string? list?)
  ..set some variables and include the file..
  (make-Music 'SequentialMusic 'void #t))

%% Function usage:
\myInclude "foo.ily" #'((myPadding . 4)
                        (myString . "hello")
                        (myMusicPattern . #{ c d e f #}))

%% foo.ily:
\score {
  \new Staff {
    \override TextScript #'padding = \myPadding
    << 
      s0^\markup \italic \myString 
      \repeat unfold 4 \myMusicPattern
    >>
  }
}

nicolas