Re: Lily inside scheme

[Jan Nieuwenhuizen]

Nicolas Sceaux writes:

> ly:parse-string is definitely a wonderful feature.

Well, you're to blame that we have it ;-)

> Here is a cleaner
> version of a #{ ... #} lilypond syntax inside scheme.

Cool; do you want to add this to CVS?

>                                   (list->string (map (lambda (char)
>                                                        (case char
>                                                          ((#\0) #\a)

I'm probably missing something here; why don't you do something like:

  (if (char:numeric? char) (integer->char (+ (char->integer #\a)
                                             (char->integer char))))
                                             

> In the following example, this #{...#} syntax is used to build music
> expressions within scheme functions:

> foo = \notes { c'8( d') e'( f') g'4( a') }
>
> \score {
>     \notes {
>         \foo
>         \apply #(with-props #{ 
>                  \override Stem #'thickness = #4 
>                  \override Slur #'transparent = ##t #}) { \foo }
>         \foo
>     }
> }

That's really great.

Jan.

-- 
Jan Nieuwenhuizen <address@hidden> | GNU LilyPond - The music typesetter
http://www.xs4all.nl/~jantien       | http://www.lilypond.org