Re: Generate pdf from scheme function

[Alexandre Araujo Moreira]

On Sun, Mar 17, 2013 at 10:01 PM, David Kastrup <address@hidden> wrote:

Alexandre Araujo Moreira <address@hidden> writes:

> \version "2.16.2"
> simpleMusic =
> #(define-scheme-function (parser location melody) (ly:music?)
> #{
> \score {
> $melody
> \layout {}
> }
> #})
> \simpleMusic { c1 }
>
> Is there anyway I can write something similar to simpleMusic (in
> usage), where it'll automatically generate the pdf given the notes?

\version "2.16.2"
simpleMusic =
#(define-scheme-function (parser location melody) (ly:music?)
#{
\score {
$melody
\layout {}
}
#})

\score { \simpleMusic { c1 } }

Probably more verbose than you care for, but at least you can get midi
and layout blocks in which is more than you can do using a music
function.

David, I tried what you said above (and some variations, as having a score around another score seemed odd) and I only managed to get syntax errors.

My original idea was based on believing a "scheme-function" in Lilypond was more-or-less like a macro in Scheme. Now I think I was wrong about that. Is there any facility in Lilypond that would allow me to write something like

\myMacro arg1 arg2 and have lilypond behave as if I had wrote the expansion of myMacro over arguments arg1 and arg2? If there is such a thing I can work out a way in which it could behave the way I want. Especially if I have anything like guile's syntax-case at my disposal.

 

--
David Kastrup


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