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## Re: Bar lines at beginning of a line

 From: Robin Bannister Subject: Re: Bar lines at beginning of a line Date: Tue, 28 Apr 2009 18:28:00 +0200

Boris Lau wrote:
```I thought it would be quite natural if this would do the job:
\override Staff.BarLine #'break-visibility = #'#(#t #t #t)
```
but it doesn't.
```
```
Certainly a reasonable expectation. This is normally #'#(#t #t #f), but there are cases when Lilypond switches over to #'#(#t #t #t) automatically, as when a \repeat volta follows a \break. This ensures that the repeat's "|:" gets printed on the left.
```
But convention doesn't want regular barlines on the left, and
```
Lilypond provides them with a sort of aptosis; they are automatically zapped before they even reach the break-visibility filter.
```
A simple method would be to make the stencil ignore all that:
```
#(define (always-single-print grob) (set! (ly:grob-property grob 'glyph-name) "|")
```    (ly:bar-line::print  grob))
```
and then \override Staff.BarLine #'stencil = #always-single-print But this ignores repeats, etc too, so maybe it's too simple. Another approach for barlines on the left is to banish the aptosis. This is what the attached was-empty.ly tries to do. It is rather cumbersome and inflexible, but at least it leaves the other barline types unharmed.
```
Cheers,
Robin
```

was-empty.ly
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