Yes, many thanks!
I had to add a definition for item-gel-column as it is not defined in 2.18.2
I substituted with this (found on openlilylib)
#(define (get-paper-column grob)
"Return the paper column of a given grob.
This property knows about the rhyhmic position in a score"
(cond
((not (ly:grob? grob)) #f)
((grob::has-interface grob 'paper-column-interface) grob)
(else (get-paper-column
;; Can't use 'X' for axis because 'X' is also a music variable
(ly:grob-parent grob 0)))))
all best,
jc
>
> \version "2.19.57"
>
> #(define (at-line-end? grob)
> ;; Thanks to David Nalesnik
> (let* ((col (ly:item-get-column grob))
> (ln (ly:grob-object col 'right-neighbor))
> (col-to-check (if (ly:grob? ln) ln col)))
> (and (eq? #t (ly:grob-property col-to-check 'non-musical))
> (= -1 (ly:item-break-dir col-to-check)))))
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