Re: Custom MMR Range engraver problem under 2.19.83

[David Kastrup]

David Kastrup <address@hidden> writes:

> Thomas Morley <address@hidden> writes:
>
>> 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.
>
> Bisecting.

06be909202d2ced6e651e4420bc8068eafae023e is the first bad commit
commit 06be909202d2ced6e651e4420bc8068eafae023e
Author: Thomas Morley <address@hidden>
Date:   Sat May 26 23:45:55 2018 +0200

    Issue 5331 Let general-column deal reliable with empty args
    
    Previously an args-list of empty-stencils issued a programming error:
      Improbable offset for stencil: -inf staff space
    This patch removes empty stencils from the args-list.
    If args-list is empty, an empty stencil is returned.

:040000 040000 1f7b4bbaa3a3fb2614daa9b9a58ac279aded4998 
2a55b8acbf49de4695c9afd37f1d60768084d8e1 M      scm


-- 
David Kastrup