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Re: (scheme-)engraver in 2.20/21

From: Aaron Hill
Subject: Re: (scheme-)engraver in 2.20/21
Date: Thu, 24 Sep 2020 04:52:23 -0700
User-agent: Roundcube Webmail/1.4.2

On 2020-09-24 4:42 am, Dan Eble wrote:
On Sep 24, 2020, at 05:51, Jan-Peter Voigt <> wrote:

Hi all,

after some other very involving projects I can now refocus on lilypond :-)

I probably missed a change in 2.20/21. If I create a scheme-engraver the
"start-translation-timestep" slot is not called, if the "initialize"
slot has been called in this particular timestep. If this the intended
behaviour I appreciate it because it is consistent. The "start-trans.." slot wasn't called before for instant voices, but for regular installed
contexts. So now I have to finish "initialize" of the engraver with
"start-trans..." in any case.

So my question is if this is intended and not likely to change?
Sorry, if I missed discussion about this!

This change was intended.

specifically, commit fe9242659305dce587bd1fcdcc7b0ac62df25ad6

Does this not actually increase complexity? An engraver that only needed to handle start-translation-timestep now needs to handle initialize as well or else it misses the opportunity to set up state.

-- Aaron Hill

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