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ANN: Dogelog Player 2.3.1 (Task Channels)

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From	Mild Shock <janburse@fastmail.fm>
Newsgroups	comp.lang.python
Subject	ANN: Dogelog Player 2.3.1 (Task Channels)
Date	Thu, 17 Sep 2026 23:53:38 +0200
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Dear All,

We are happy to announce a new
  edition of the Dogelog Player:

- Enhanced catch/3:
We noticed that catch/3 causes a friction in
'$YIELD'/1. So we redesigned its implementation
by refraining from using the host programming
language stack. The engine now offers an exception
handler stack, and the Prolog interpreter trampolin
unwinds these exception handlers upon a
Prolog or host error.

- New call_cleanup/3:
The new predicate call_cleanup/3 supplants the
old predicate once_cleanup/3. Like catch/3 it
now features an implementation that refrains
from using the host programming language stack.
Its implementation makes use of a rogue '$CUT'/1
which is realized by choicepoint scanning
and continuation manipulation.

- Task Channels:
To lower the footprint of the core there are
new libraries library(timer) and library(tasks).
The later library offers a new predicate task_join/1
which is abortable. Further the library offers
predicates chan/1, recv/2 and send/2 to deal with
channels that live in the cooperative
multitasking realm.

Have Fun!

Jan Burse, September 17, 2026, https://www.herbrand.ai/

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ANN: Dogelog Player 2.3.1 (Task Channels) Mild Shock <janburse@fastmail.fm> - 2026-09-17 23:53 +0200
  Re: ANN: Dogelog Player 2.3.1 (Task Channels) Johann 'Myrkraverk' Oskarsson <johann@myrkraverk.invalid> - 2026-09-25 23:36 +0800

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