Am 10.04.2015 um 23:05 schrieb Urs Liska:
Am 10.04.2015 um 01:29 schrieb Urs Liska:
Am 08.04.2015 um 10:18 schrieb Mark Knoop:
At 09:35 on 08 Apr 2015, Urs Liska wrote:
Am 8. April 2015 08:28:47 MESZ, schrieb Urs Liska
<u...@openlilylib.org>:
Hi all,
what is the most viable approach to suppress all the doubled items
like makuos,
markups
dynamics etc. that are produced by the partcombiner?
Perhaps the merge-rests-engraver in OLL is adaptable?
I could now look at that code, and it seems promising. Provided it
can perform its action later than the partcombiner. But I think this
should be the case.
Unfortunately I'm not sure yet if I manage to make that work. In any
case I don't think I'll be able to adapt it to spanners because that
would require a significant additional layer of housekeeping compared
to "simple" markups.
OK, I've done a very primitive rewriting of the merge-rests-engraver,
as can be seen in the attachment. Surprisingly the file compiled
without real errors on first try, but it issued a warning "
Sorry, hit the wrong keyboard shortcut ;-(
The file issued the warning:
warning: unknown translator: `merge-markups-engraver'
warning: cannot find: `merge-markups-engraver'
and produced "normal" output.
Can anyone point me to the right direction to make this "engraver"
noticed by the \score?
Thanks
Urs
\version "2.18.0"
\header {
snippet-title = "merge-rests-engraver"
snippet-author = "Jay Anderson"
snippet-source =
"http://www.mail-archive.com/lilypond-user%40gnu.org/msg69608.html";
snippet-description = \markup {
Merge rests of equal duration in different voice
}
tags = "merge, rest, rests, voice, voices"
status = "ready"
}
#(define has-one-or-less (lambda (lst) (or (null? lst) (null? (cdr lst)))))
#(define has-at-least-two (lambda (lst) (not (has-one-or-less lst))))
#(define (all-equal lst pred)
(or (has-one-or-less lst)
(and (pred (car lst) (cadr lst)) (all-equal (cdr lst) pred))))
#(define merge-markups-engraver
(lambda (context)
(let ((markups-equal?
(lambda (markup-a markup-b)
(string=?
(markup->string markup-a)
(markup->string markup-b))))
(markups '()))
`((start-translation-timestep . ,(lambda (trans)
(set! markups '())))
(stop-translation-timestep . ,(lambda (trans)
(if (and (has-at-least-two markups)
(all-equal markups
markups-equal?))
(for-each
(lambda (mkup)
(ly:grob-set-property! mkup
'Y-offset 0))
mkup))))
(acknowledgers
(text-interface . ,(lambda (engraver grob source-engraver)
(if (eq? 'Markup (assoc-ref
(ly:grob-property grob 'meta)
'name))
(set! markups (cons grob markups))))))))))
\score {
\new Staff \with {
\consists merge-markups-engraver
}
<<
\new Voice {
\voiceOne
c''^\markup "Test"
}
\new Voice {
\voiceTwo
c'_\markup "Test"
}
>>
\layout {}
}_______________________________________________
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