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Re: Some engraver brainstorming
From: |
Han-Wen Nienhuys |
Subject: |
Re: Some engraver brainstorming |
Date: |
Sat, 8 May 2010 18:47:20 -0300 |
On Sat, May 8, 2010 at 6:44 PM, Han-Wen Nienhuys <address@hidden> wrote:
> They were finally removed in LilyPond 2.1.13 (according to convert-ly)
>
> IIRC we kept them around for so long, since they were the only way to
> get per-notehead styles within a chord. After we introduced \tweak
> (IIRC), there was no necessity for it anymore.
>
>>> I had the idea earlier and unleashed it on the world. It was called
>>> the Thread context, and it was a disaster, because it would die or
>>> be created at unexpected times. I you dive deep enough into the git
>>> history, you can find its remnants.
>>
>> This basically means that you oppose to David's idea because it
>> doesn't work as expected?
>>
>
> The lifetime of Threads (or whatever you call them) is tricky. Consider
>
>
> <c( address@hidden( g>
> % *
> % ..stuff..
> %
> <address@hidden) f)>
> % **
>
> How would LilyPond know that the @1 thread context must stay alive at
> the point marked %* ? The iterator for the E note would be pointing at
> the @1 Thread, but something else must copy the reference so it doesnt
> die.
>
> Suppose you somehow save the reference to @1. How does lilypond know
> the context should die at %** ? If it does not, you'll risk
> accumulating them until the end of the piece, making things slow down.
Also note, we had something like @1, it was just more verbose:
\context Thread=TA ..
and in this case, to make things work, you'd have to write them as
parallel lines, instead of chords.
--
Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen
- Re: Following voices in chords?, (continued)
- Re: Following voices in chords?, Carl Sorensen, 2010/05/07
- Some engraver brainstorming (was: Following voices in chords?), David Kastrup, 2010/05/08
- Re: Some engraver brainstorming, Marc Hohl, 2010/05/08
- Re: Some engraver brainstorming (was: Following voices in chords?), Kieren MacMillan, 2010/05/08
- Re: Some engraver brainstorming, Werner LEMBERG, 2010/05/08
- Re: Some engraver brainstorming, David Kastrup, 2010/05/08
- Re: Some engraver brainstorming, Han-Wen Nienhuys, 2010/05/08
- Re: Some engraver brainstorming, David Kastrup, 2010/05/08
- Re: Some engraver brainstorming, Werner LEMBERG, 2010/05/08
- Re: Some engraver brainstorming, Han-Wen Nienhuys, 2010/05/08
- Re: Some engraver brainstorming,
Han-Wen Nienhuys <=
- Re: Some engraver brainstorming, David Kastrup, 2010/05/09
- Re: Some engraver brainstorming, David Kastrup, 2010/05/09
- Re: Some engraver brainstorming, David Kastrup, 2010/05/08
- Re: Some engraver brainstorming, Francisco Vila, 2010/05/08
- Re: Some engraver brainstorming, Reinhold Kainhofer, 2010/05/08
- Re: Some engraver brainstorming, Carl Sorensen, 2010/05/08
- Re: Some engraver brainstorming, David Kastrup, 2010/05/09
- Re: Some engraver brainstorming, David Kastrup, 2010/05/10
- Re: Some engraver brainstorming, Carl Sorensen, 2010/05/10
- Re: Some engraver brainstorming, David Kastrup, 2010/05/10