From: Hans Hagen <j.hagen@xs4all.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: upload
Date: Mon, 27 Jul 2020 16:42:23 +0200 [thread overview]
Message-ID: <c2b21c49-a6e6-e397-e89b-d74577a7a7f9@xs4all.nl> (raw)
Hi,
Normally we don't report on successive loe level improvements in the
engine or the core of context (we do so in articles and wrapups), and
much goes unnoticed anyway (which is good). But ... the last couple of
weeks we have been playing with some adapted functionality in lmtx and
some of the experimental low level code has now made it in core.
Normally users will not notice this but who knows.
There are already features in lmtx that are not (and are unlikely to be)
in mkiv (most significant in the metapost related part). When possible
new macros and additions to mechanism will be in both mkiv and lmtx, but
lmtx users will be better off in the end. We're mostly talking of the
more tricky mechanisms here, those that currently have limitations due
to all kind of possible interferences. To summarize:
mkii : frozen (seldom patches)
lmtx : cutting edge
mkiv : when possible following lmtx, otherwise frozen
Because we develop lmtx and luametatex alongside it is no problem if we
have experimental (and even temporary imperfect) code in the engine:
context knows about it and especially with experiments, we try to make
sure it doesn't hit users (who we don't expect to use those, often
undocumented, new tricks anyway). It's sometimes the only way to go
forward (stepwise testing).
So, here is an example of where lmtx can do better than mkiv:
\placefigure[left]{}{} \input ward \par
\placefigure[left]{}{} {\bf \input ward} \par
Another area is in using footnotes. As a first step to more robust
handling of deeply nested notes, lmtx now defaults to (the more than a
decade optional in mkiv) \automigrateinserts, but with less overhead
(for performance reasons, it was never enabled in mkiv, apart from
occasional side effects). It is features like these that will stepwise
be improved, at least that is what we hope for.
So, the current upload has some new stuff, hopefully without too many
side effects, but if so, we'll deal with it as usual. As a result, the
latest lmtx could be a little slower, but I wonder if someone will
notice it in practice.
Hans
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next reply other threads:[~2020-07-27 14:42 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-27 14:42 Hans Hagen [this message]
2020-07-28 8:58 ` upload Fabrice Couvreur
2020-07-28 11:28 ` upload Hans Hagen
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