Maybe it's a silly question but why not simply something like:
\version "2.18"
{ c'1 \bar ".|:" c' c' c' \bar ":|." c' c' }
Cheers,
Pierre
Le lun. 4 janv. 2021 à 20:23, Jean Abou Samra <j...@abou-samra.fr> a écrit :
> > I need to be able to engrave repeats, but I fear that the
> > bar-engraver, which I turned off for chant music, is responsible for
> > engraving the repeats: when I turn it back on, then the repeats
> > appear, but since the music is chant, it runs off the page.
> >
> > How to do this?
> >
> > The work is attached.
> >
> > Thank you.
>
> Hello,
>
> Your diagnosis is right. The Bar_engraver is responsible for engraving
> all kinds of bars and preventing breaks when there aren't any.
>
> Here is one solution (though not the only one and most probably not the
> most concise one): rewrite it to engrave just repeat bar lines while
> ignoring requests for regular bar lines and not preventing lines breaks
> anywhere.
>
>
> \version "2.21.80"
>
> % Original file is at
> % https://gitlab.com/lilypond/lilypond/-/blob/master/lily/bar-engraver.cc
>
> #(define (Tweaked_bar_engraver context)
> (let ((bar #f)
> (spanners '())
> (considered-bar #f))
> (make-engraver
> ((process-acknowledged translator)
> (if (not considered-bar)
> (begin
> (set! considered-bar #t)
> (let ((gl (ly:context-property context 'whichBar))
> (default-bar-type (ly:context-property context
> 'defaultBarType)))
> (if (and (string? gl)
> (not (equal? gl default-bar-type)))
> (begin
> (set! bar (ly:engraver-make-grob translator
> 'BarLine '()))
> (ly:grob-set-property! bar 'glyph gl))))))
> (if bar
> (for-each
> (lambda (sp) (ly:spanner-set-bound! sp RIGHT bar))
> spanners))
> (set! spanners '()))
> (end-acknowledgers
> ((spanner-interface engraver grob source-engraver)
> (if (and
> (or bar (not considered-bar))
> (ly:grob-property grob 'to-barline))
> (set! spanners (cons grob spanners)))))
> ((stop-translation-timestep translator)
> (set! bar #f)
> (set! considered-bar #f)))))
>
> \layout {
> \context {
> \Staff
> \remove "Bar_engraver"
> \consists #Tweaked_bar_engraver
> \remove "Time_signature_engraver"
> }
> }
>
> See complete example attached.
>
> Best,
> Jean
>
>
>
