Hi David,
thank you for that suggestion.
I'll try to get my mind around this ASAP.
On the first sight I don't understand too much of it. But at least I
notice that I'm not afraid of these lambda, let and let* constructs
anymore. Finally I'm getting *somewhere* to familiarity with the basic
working of Scheme code. What I'm still at a major loss is how Scheme
interacts with LilyPond specific functionality. There's really a need
for education in that sector.
Best
Urs
Am 10.01.2015 um 20:50 schrieb David Nalesnik:
On Sat, Jan 10, 2015 at 1:39 PM, David Nalesnik
<david.nales...@gmail.com <mailto:david.nales...@gmail.com>> wrote:
\version "2.19.15"
writeBreaksEngraver =
#(lambda (context)
(let ((out (open-output-file "output.txt")))
(make-engraver
(listeners
((line-break-event engraver event)
(let* ((ccc (ly:context-property context
'currentCommandColumn))
ccc is not used here
It's left over from my attempts to query the NonMusicalPaperColumn
grobs in the piece for "break-status" (0 = unbroken, -1 = end-of-line,
1 = beginning-of-line), but break-status always comes back 0. Try
(ly:item-break-dir ccc) to see what I mean. The conclusion I draw is
that useful information about paper columns has not been set when our
engraver is operational.
David
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