On 1/14/2025 6:50 PM, Henning Hraban Ramm wrote:
Am 11.01.25 um 12:30 schrieb Hans Hagen via ntg-context:
Sure.
I’m proud to have found several features that you forgot about ;)
ah, so you now make a nice certificate that you can put behind you
when we chat
Will do ;)
Do you also give out cheques? ;)
we might if we got them
Back to macros (I read lowlevel-macros, at least tried to…):
While I liked \define, it looks like it just doesn’t make sense anymore
if I need (\tolerant)\def for anything advanced anyway?
\starttexdefinition
supports this
You stress how costly named macros are – then we should forget about
MkLX mode?
i meant 'if supported by the engine' but mklx are only named when you
define them adnm internalized as #1 ...
Did I understand correctly, that bracketed = optional parameters is just
a convention, i.e. only the handling of arguments makes them optional,
not their definition/fencing?
indeed, you could also do
\tolerant\def\foo(#1){...}
With \tolerant, we can not only forget about the last dodos (and even
single dos), but also about \dosingleargument & friends, right?
Are there cases where the MkIV way still makes sense with LMTX?
only a few places (where we were too lazy to redo it) but eventually all
will use the modern way ... if you see one and are annoyed you can tell
me (HH & WS)
When does it make sense to define macros in Lua (interfaces.implement)?
Obviously, if I need calculations or I/O operations that are easier to
do in Lua. Are there disadvantages of Lua-defined vs. TeX-defined macros?
it depends but i doubt if you will notice (often the performance hits
are not where you think they are so one can occasionaly run into curious
assumptions)
timing tex is kind of tricky because in a loop that does simple things
cpu caching speeds up things contrary to doing things all over memory
and code; anyway one avoids some tokenization when used right
if one noticed a bottleneck we can look into but as we don't get
complaints i guess performance is ok
Hans
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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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