schlcht

> Regarding your PS: `xparse.pdf` page 3: Ah yes, thanks, I was suspecting some sort of blindness on my part.

The MWE was not meant to show a valid use case, but an instance of something going awry. microtype uses \RawNoindent not for real typesetting, but in a trial typesetting...

> but despite the fact that @u-fischer may have suggested to use \RawNoindent for that I'm not sure that is the right approach. Oh I see, that of course changes...

First of all, you must be doing something to provoke this error message (either you're loading the package with the `tracking` option, or you're using the `\textls` command). Just loading...

> I'm also using `tectonic` and therefore a fork of `xetex` and would _love_ to use the automatic font expansion option of microtype. Is it difficult to implement this for...

Hm, babel-hebrew redefines `\everypar` in a very bad way (`\def\everypar#1{...}`), which should also fail in many other cases, so I'm quite tempted to just say "report elsewhere" (however, that package...

what a nice surprise... It seems this has been fixed with version 3.1, albeit inadvertently (I'm not even sure how, I suppose `\leftprotrusion` has become a bit more careful). Though...

yes, that should remain open as it concerns other situations and packages, too.

microtype can _fix_ many overfull hbox issues by applying font expansion, but it will never _suppress_ any warnings for unfixed problems. So please provide a minimal example.

any news? otherwise I'm tempted to close this...