As I said, I didn't consider it a bug but a feature.
Short-lived contexts do die and I haven't objected against that.
The feature is that contexts that are completely empty at the
top of the score never die. Here are two illustrating examples.
The second one shows why I find this a useful feature. Without it,
I would need to find out how many empty bars to include in an
initial \context Lyrics = "above" {s1*10}.\version "2.5.20"
% Useless illustration of the feature
\score{ \relative c' <<
\context Staff = "eternal" {}
\context Staff = "ephemeral" {s1}
\context Staff = "main" {
c1 | c1
<< c1
\context Staff = "ephemeral" { e1^"ephemeral" }
\context Staff = "eternal" { g1^"eternal" }
>>
c1 | c1
<< c1
\context Staff = "ephemeral" { e1^"ephemeral" }
\context Staff = "eternal" { g1^"eternal" }
>>
}
>>
}
% Useful illustration of the feature
\score{ <<
\context Lyrics = "above" {}
\new Staff \context Voice = "main" \relative c' {
c1 d <<
\context Voice = "upper" {\voiceOne e2 d2} \voiceTwo c1 >>
\oneVoice e }
\new Lyrics \lyricsto "main" {do re do mi }
\context Lyrics = "above" \lyricsto "upper" { mi re }
>> }
/Mats
Han-Wen Nienhuys wrote:
Mats Bengtsson wrote:
Hi,
In several examples and templates in the manual, we use constructs like
\context Lyrics = "somename" {s1*20}
to create an empty context that will live for at least 20 bars. However, I noticed more or less by accident that if you instead do
\context Lyrics = "somename" { }
then you'll get a context that is automatically kept alive during the full score. Of course, this feature is very nice since you don't have to calculate how many empty bars are needed. If this is a deliberate feature, then it should be properly documented and advertised in the manual and all the corresponding examples should be modified to use the feature. If it's just a coincidence, I strongly recommend to make it a supported feature.
Imagine the performance impact if contexts (eg. short-lived like << c \\ d >> ) never die.
Bugreport please.
-- ============================================= Mats Bengtsson Signal Processing Signals, Sensors and Systems Royal Institute of Technology SE-100 44 STOCKHOLM Sweden Phone: (+46) 8 790 8463 Fax: (+46) 8 790 7260 Email: [EMAIL PROTECTED] WWW: http://www.s3.kth.se/~mabe =============================================
_______________________________________________ bug-lilypond mailing list [email protected] http://lists.gnu.org/mailman/listinfo/bug-lilypond
