I was researching a method for defining form (repeats, rehearsal
marks, etc.) and line breaking in separate, hidden parallel staff
contexts, and ran across the following crash:
GNU LilyPond 2.17.26
Processing `bug6-crash.ly'
Parsing...
Interpreting music...
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems.../usr/local/share/lilypond/2.17.26/scm/bar-line.scm:913:28: In
procedure ly:grob-array-length in expression (ly:grob-array-length bar-array):
/usr/local/share/lilypond/2.17.26/scm/bar-line.scm:913:28: Wrong type argument
in position 1 (expecting Grob_array): ()
Can someone please determine whether the latest beta still does
this, and if so, whether a bug report is warranted?
The interaction appears to be between '\remove "Bar_engraver"' and
the alternative ending. Remove either one and the problem goes away.
Thank you,
Jim
\version "2.17.26"
form = \new Staff \with {
\remove "Bar_engraver"
} \repeat volta 2 {
s1
} \alternative {
s1 % first ending
s1 % second ending
} % form
\score {
<<
\form
>>
} % score
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