In http://code.google.com/p/lilypond/issues/detail?id=2026#c32
Ian Hulin wrote:
This is fixed if we move the definition of the \null markup to the
before the empty-markup declaration and change empty-markup to
(define-public (empty-markup)
make-null-markup))
...
It's built the docs successfully and run reg-tests OK.
OK, the docs say \null markup is an "empty markup", merely a single point,
but it has _position_, which empty-markup does not.
The following snippet demonstrates this difference:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
offset = \markup \translate #'(9 . 9) "offset"
\markup \line {
"concat with empty-markup:" \box \concat { \empty-markup \offset }
" concat with null markup: "\box \concat { \null \offset }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Cheers,
Robin
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