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Re: Fixes NoteColumn vs SpanBar collisions. (issue 5323062)

From: k-ohara5a5a
Subject: Re: Fixes NoteColumn vs SpanBar collisions. (issue 5323062)
Date: Wed, 09 Nov 2011 06:16:50 +0000
File lily/ (right):
lily/ pure_relevants_.push_back
(i.item ());
It seems that pure_relevants_[] are the grobs that have the
pure-from-neighbor interface, which would be the BarLines, Clefs,
SpanBarStubs etc.
This is a disjoint set from item_[].
All of item_[] satisfy (pure-relevant? x)
Not all of pure_relevants_[] satisfy (pure-relevant? x)

The variable naming is evil.
File scm/define-grobs.scm (right):
scm/define-grobs.scm:1743: (pure-from-neighbor-ignore . #t)
Scripts can be wide enough to hit span bars.
What good does pure-from-neighbor-ignore do ?
The behavior is surprising.  Playing with the example you gave earlier
\new GrandStaff <<
\new Staff R1*5
\new Staff {
   \override TextScript #'extra-spacing-width = ##f
   dis4 dis dis dis^"sliding-over" |
   dis4 dis dis dis |
   dis'''4 dis dis dis^"sliding-over-not" | R1
   c'''4\espressivo  a'2. } >>

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