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Re: Creating markup macros (functions actually)
From: |
Nicolas Sceaux |
Subject: |
Re: Creating markup macros (functions actually) |
Date: |
Sat, 27 Nov 2004 16:21:13 +0100 |
User-agent: |
Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3 (gnu/linux) |
Paul Scott <address@hidden> writes:
> Does this make any sense?
>
> #(def-markup-command (testOne layout props) ()
> (interpret-markup layout props
> (markup #:number
> (lambda (x) (ly:music-property x 'numerator)))))
No.
(lambda ...) evaluates to a function, where you want a
markup. Remember that the \number markup command takes a markup as an
argument, not a procedure.
When you want to parametrize (uh) a LilyPond expression, the first
thing to do is to write it, in plain LilyPond syntax, and then display
it in Scheme. Then you will have a pattern to use in your function
body. (What you want is a music function, not a markup command).
for instance, supposing that `mus:display' (see
http://lists.gnu.org/archive/html/lilypond-devel/2004-11/msg00029.html)
is defined in music-display.scm:
-----test.ly-----
#(load "music-display.scm")
#(mus:display #{ R1^\markup \number 1 #})
-----test.ly-----
lilypond test.ly
==>
(make-music 'SequentialMusic
'elements (list
(make-music 'MultiMeasureRestMusicGroup
'elements (list
(make-music 'BarCheck)
(make-music 'EventChord
'elements (list
(make-music 'MultiMeasureRestEvent
'duration (ly:make-duration 0 0 1 1))))
(make-music 'BarCheck)
(make-music 'TextScriptEvent
'direction 1
'text (list
number-markup
(markup #:simple "1")))))))
>>See scm/new-markups.scm.
>>
>>
> I'll keep reading this but I don't understand it yet. Can you
> recommend any online reading to understand scheme better?
I don't know much about scheme community sites. www.schemers.org
should have links to tutorials and books.
nicolas
- Creating markup macros, Paul Scott, 2004/11/26
- Re: Creating markup macros, Nicolas Sceaux, 2004/11/26
- Re: Creating markup macros, Paul Scott, 2004/11/26
- Re: Creating markup macros, Nicolas Sceaux, 2004/11/27
- Re: Creating markup macros, Paul Scott, 2004/11/27
- Re: Creating markup macros (functions actually), Nicolas Sceaux, 2004/11/27
- Re: Creating markup macros (functions actually), Paul Scott, 2004/11/27
- Re: Creating markup macros (functions actually),
Nicolas Sceaux <=
- Re: Creating markup macros (functions actually), Paul Scott, 2004/11/27
- Re: Creating markup macros (functions actually), Paul Scott, 2004/11/27
- Re: Creating markup macros (functions actually), Nicolas Sceaux, 2004/11/27
- Re: Creating markup macros (functions actually), Paul Scott, 2004/11/27
- Re: Creating markup macros (functions actually), Paul Scott, 2004/11/27
- Re: Creating markup macros (functions actually), Nicolas Sceaux, 2004/11/27
- Re: Creating markup macros (functions actually), Paul Scott, 2004/11/27
- Re: Creating markup macros (functions actually), Han-Wen Nienhuys, 2004/11/27
- Re: Creating markup macros (functions actually), Nicolas Sceaux, 2004/11/27
- Re: Creating markup macros, Han-Wen Nienhuys, 2004/11/27