L3 programming layer interface for latex3

Question

The L3 programming layer interface for latex was introduced to provide better syntax and library for LaTeX programmers. With little material about the language, where can I find its technical manual?

texdoc interface3 or texdoc expl3 for a higher level overview. Also look at https://www.alanshawn.com/latex3-tutorial/ No idea why you say "little material" ? — David Carlisle, Oct 02 '22 at 14:15
I find that the way the documentation is presented is quite complex. Would there be any chance to have a brief description with instructions on how one can navigate the extensive documentation and get to the information one wants. It is particularly difficult for beginners. — Veak, Oct 02 '22 at 14:23
Does the language permit use of hyphen (-) in addition to underscore (_) for variables? — Veak, Oct 02 '22 at 14:25
You asked for a "technical manual" interface3 is a full listing of every function defined, there is also l3kernel which is documented source code. Neither is intended as a tutorial, see instead the https://www.alanshawn.com/latex3-tutorial/ I showed above (which is not by the latex team) — David Carlisle, Oct 02 '22 at 14:27
no, you could try that or see any intro, you do not need a technical manual for that kind of question, — David Carlisle, Oct 02 '22 at 14:28
Yes, I asked for technical manual. But also interjected about a short summary for making sense of https://www.latex-project.org/help/documentation/. — Veak, Oct 02 '22 at 14:29
You are right of course, but I would need the manual to understand code of others. — Veak, Oct 02 '22 at 14:33
Unfortunately not really. latex3 - Where I can find introduction to programming in expl3? - TeX - LaTeX Stack Exchange — user202729, Oct 02 '22 at 14:45
@user202729 As David's already mentioned, there's a good overview available online from a non-team member — Joseph Wright, Oct 02 '22 at 14:49

L3 programming layer interface for latex3

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