Marco Patzer via ntg-context schrieb am 17.11.2021 um 16:54:
Hi!
I'm in the process of converting some projects to LMTX. Combinations
lacking “”before” and “after” keys (that place content before/after
the *entire* combination, rather than the individual cell pairs), I
came up with the following ugliness – which worked for longer than
it deserved:
[...]
I added vertical spacing and mid-aligned the content without having
to change the sources, that was the idea. However, this fails in
LMTX:
Undefined control sequence \pack_combinations_start
Does LMTX offer finer control over the combinations or do I have to
rewrite the sources files (to either use floats or surround the
combinations with the required commands)?
1. Your changes don't work anymore because LMTX handles optional
arguments in a different way than MkIV. As a result of this change a few
commands have disappeared.
2. There are no changes to adjust the vertical before and after a
combination environment. Local patches can also be tricky because
ConTeXt tries to freeze the definitions of many user level commands
which means they can't be redefined when you use a strict overload mode
(look at the lowlevel security manual for this feature).
The most reliable way to center you combination blocks is to put them
either in a float or put a framedtext environment around it.
Wolfgang
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