On 12/8/2022 8:54 PM, Otared Kavian via ntg-context wrote:
Hi Hans, Mikael,
These features are amazing! Many many thanks!
Thanks also to Gavin for having stated so precisely these kinds of needs, so
that Hans and Mikael could come up with this solution.
Gavin, good luck with your project, and plaese share what you get at the end.
For the record: this features is already there for a while, we also have
some matrix specific trickery as well as for instance annotated fences
and so. However, the interfaces will evolve and eventually get
documented in the upcoming (big) math manual. It's mostly a matter of
consistent interfacing i.e. it has to fit into the way we do things in
context (it's of course easy to come up with a quick and dirty ugly non
extensible and non standard interface).
What is new in the latest greatest is (1) namespaces, so that one can
reuse the references, which Gavin needs, and (2) sourcing a nucleus
and/or the whole atom including scripts, which Gavin also needs. Some
more granularity might show up depending on needs. As some depends on
the tex engine there are limitations (performance, memory and complexity
constraints: adding features like these might definitely not impact
performance).
Source and target properties were added in order to avoid interference
with math spacing but can also be used in text, where they are part of
the larger package of box properties that was already around.
\startTEXpage[offset=2cm]
\setbox 0 \ruledhbox
source 123
anchors 1 2
{one}
\setbox 2 \ruledhbox
target 123
{test 1}
\dontleavehmode \box2 \box0
\setbox 0 \ruledhbox
target 124
orientation 2
anchors 1 4
xoffset -10pt
{two}
\setbox 2 \ruledhbox
source 124
{test 2}
\dontleavehmode \box2 \box0
\stopTEXpage
With sources and targets one has to keep in mind that they don't
participate in the box dimensions! Although excessive usage puts some
strain on the backend in practice it probably goes unnoticed. Also, be
careful with the source and target id's! There is currently no low level
allocation mechanism so stick to positive numbers.
So, lots to play with, if you're in the mood,
Hans
(There is quite some experimental code around but to what extend it ends
up in the core depends on demand, time, motivation etc. As you can
guess, Mikael and I having a lot of math fun is motivating.)
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Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
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