| Re: [frogs] Lilypond variable definitions - are they accessible from Scheme? |
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- To: Carl Sorensen <c_sorensen@xxxxxxx>
- Subject: Re: [frogs] Lilypond variable definitions - are they accessible from Scheme?
- From: Han-Wen Nienhuys <hanwenn@xxxxxxxxx>
- Date: Sun, 3 Jan 2010 22:33:08 -0200
- Cc: Ian Hulin <ian@xxxxxxxxxxxx>, Lilypond Frogs List <frogs@xxxxxxxxxxx>, Lily devel <lilypond-devel@xxxxxxx>
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On Sun, Jan 3, 2010 at 10:00 PM, Carl Sorensen <c_sorensen@xxxxxxx> wrote:
>> I'm working on the Guile Debugger Stuff, and would like to try debugging a
>> music function definition such as:
>> conditionalMark = #(define-music-function (parser location) ()
>> #{ \tag #'instrumental-part {\mark \default} #} )
>>
>> It appears conditionalMark does not get set up as an equivalent of a Scheme
>> (define conditionalMark = define-music-function(parser location () ...
>> although something gets defined because Scheme apparently recognizes
>> #(set-break! conditionalMark)
you can see the defintion by doing
#(display conditionalMark)
inside the .ly file.
The breakpoint failing may have to do with the call sequence. See
parser.yy, run_music_function(). The function is called directly from
C++, without going through the GUILE evaluator, so I think that is why
there is no debugger trap.
--
Han-Wen Nienhuys - hanwen@xxxxxxxxx - http://www.xs4all.nl/~hanwen
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