Re: Unicode confusables and reordering characters considered harmful

[Yuri Khan]

On Thu, 4 Nov 2021 at 02:33, Stefan Monnier <monnier@iro.umontreal.ca> wrote:
>
> > +   '(("\N{LEFT-TO-RIGHT EMBEDDING}\\|\N{RIGHT-TO-LEFT EMBEDDING}\\|\
> > +\N{LEFT-TO-RIGHT OVERRIDE}\\|\N{RIGHT-TO-LEFT OVERRIDE}\\|\
> > +\N{LEFT-TO-RIGHT ISOLATE}\\|\N{RIGHT-TO-LEFT ISOLATE}\\|\
> > +\N{FIRST STRONG ISOLATE}\\|\N{POP DIRECTIONAL FORMATTING}\\|\
> > +\N{POP DIRECTIONAL ISOLATE}" . (0 'font-lock-warning-face t)))))
>
> A [...] would be a lot more efficient than this "...\\|...\\|...\\|...".

An (rx (any ?… ?… ?… …)) would be more wrappable/indentable and almost
as performant as a […], though.