Re: Custom MMR Range engraver problem under 2.19.83

[Thomas Morley]

Am Mo., 6. Jan. 2020 um 00:53 Uhr schrieb Malte Meyn <address@hidden>:
>
>
>
> Am 06.01.20 um 00:02 schrieb Craig Dabelstein:
> > Hi all,
> >
> > I've been using the custom mmr-range-engraver (from this thread:
> > https://lists.gnu.org/archive/html/lilypond-user/2016-02/msg00505.html).
> > It was working perfectly under 2.19.82 but won't work under 2.19.83. No
> > error messages at all. Just mmr bar numbers not displaying. Has anyone
> > else experienced this?
> >
> > Craig
>
> Could you please give a minimal working example (or at least link to the
> message containing a compilable code, not to the start of the thread)?
>

It's
https://lists.gnu.org/archive/html/lilypond-user/2016-02/msg00543.html

A minimal for the problem:

\markup
\center-column {
   foo
   \translate #'(0 . 3)
   \with-dimensions #empty-interval #empty-interval
   bar
}

With 2.19.82 "bar" is printed, it completely disappears with 2.19.83
No clue what happens and why.
Probably a bug, to tired to do further research, thoug.

Anyway,
Craig change formatMMRNumber to:

formatMMRNumber =
#(define-scheme-function (start stop)(integer? integer?)
(pretty-print (number->string (- stop start)))
#{
  \markup
    \column {
       \halign #0 #(number->string (- stop start))
%       %% value found by try and error
       \translate-scaled #'(0 . -6.5)
       \with-dimensions #empty-interval #empty-interval
       \halign #0
       \normal-text
       \fontsize #-2
       \line {
         #(number->string (1+  start))
         " - "
         #(number->string stop)
       }
    }
#})

and the functionality should be restored.

Cheers,
  Harm