Skillmon

Probably `\text{$...$}` instead of `\mbox` to get correct sizes.

Well, and a combination of `mathastext` and `isomath` need again something different (because there `\mathrm{\Omega}` will again not work).

I just wanted to add the following example to the discussion: https://topanswers.xyz/tex?q=691 There also `hyperref` is involved and changing the load order such that `babel` isn't loaded first (even if...

@josephwright why not only some fast check for the catcode? Something like ```tex \prg_new_conditional:Npnn \my_if_letter:N #1 { TF } { \exp_after:wN \__my_if_letter:w \tex_the:D \tex_catcode:D `#1 \exp_stop_f: \__my_if_letter_true:w 11 \if_false: \prg_return_true:...

> I can't really see usecase for it, because processing those keyvals in the payload would then most likely be not expandable in places. Oh no, all my expandable key=value...

Only a comment on your > changing \exp_not:n {...} to \noexpand would make it faster, but then the same optimization could be applied in the TeX implementation as well, so...

I know what I did, and why. Note that reusing parts of the image isn't what I'm asking about here (not meaning this wouldn't be a handy feature, just not...

I'd prefer `\meta` to use `\texttt` (and that's what I do in my own documentations which use `l3doc`).

Regarding your PS: `xparse.pdf` page 3: > First, `+` is used to make an argument long (to accept paragraph tokens). In contrast to > LaTeX2e’s `\newcommand`, this applies on an...

@josephwright the name was chosen to be symmetrical with `\token_to_meaning:N` (which could've been named `\token_meaning:N`, imho), and to avoid future confusion I'd suggest to stick with it, but as always:...