[Lilypond-auto] Issue 3218 in lilypond: \column and \left-column don't align

[lilypond]

Status: Accepted
Owner: ----
CC: address@hidden

New issue 3218 by address@hidden: \column and \left-column don't align
http://code.google.com/p/lilypond/issues/detail?id=3218

\markup { \column { "" b c } \left-column { "" b c } }

aligns the first b with the second "" while the first "" is discarded.

This is partly an easter egg from old code (2008 or earlier): empty  
stencils are sometimes removed in the markup commands, sometimes not,  
without a really convincing pattern.

However, I would guess that "" at one point of time was a point-stencil  
rather than an empty stencil (at least, this would make sense to me), so  
this inconsistency probably was much less apparent.  At any rate, it seems  
like a mistake to drop empty lines from columns, so "" better create a  
point-stencil rather than an empty stencil.

It would be good if someone could check this on 2.16 to figure out whether  
or not it was indeed the skyline code which made "" empty or whether we are  
dealing with an even older inconsistency.

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