Re: [Lilypond-auto] Issue 3663 in lilypond: Crash with \repeat ... \alternative and \remove "Bar_engraver"

[lilypond]

Updates:
        Status: Started
        Owner: address@hidden
        Labels: Patch-new

Comment #1 on issue 3663 by address@hidden: Crash with \repeat ...  
\alternative and \remove "Bar_engraver"
http://code.google.com/p/lilypond/issues/detail?id=3663#c1

Issue 3663: Crash with \repeat ... \alternative and \remove "Bar_engraver"

This approach is just poking around in the dark and removing Scheme
error messages.  In particular substituting the original glyph for
left-bar-line and right-bar-line (when missing) in calls to
span-bar::compound-bar-line seems fishy, and the original logic
for setting left-bar-broken if left-bar-line is not even present
is also not clear to me.

The results for the example in the bug report:
form = \new Staff \with {
  \remove "Bar_engraver"
} \repeat volta 2 {
    s1
} \alternative {
    s1 % first ending
    s1 % second ending
} % form

\score {
  <<
    \form
  >>
} % score
are also not identical with the 2.16 results: the volta brackets now
run into each other; before there was a gap.

It fixes the crash.  I have no idea what a proper fix would look like.

http://codereview.appspot.com/27790043

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