[luatex] Library for regular expressions in lualatex

[Henri Menke]

On 11/06/2019, 05:22:37, Саша Козловский wrote:
> Hello Henri. You wrote
> > so
> > verbatim material will not work.
> And how i can do,that verbatim material works?

Don't try to grab math material at all but insert ActualText within the
mlist_to_hlist callback (not sure whether that works adequately) or
inspect the shipout box and insert pdf_literal whatsits around mlist
nodes.  You asked a similar question about that before as well, but for
local_par instead of mlist:

    https://tex.stackexchange.com/questions/490736/how-insert-pdf-literal-before-and-after-paragraph

> > I also noticed that you have asked this question before (at least I
> > think that was you)
> Yes,it was i.

Then you should accept some of those answers to remove your questions
from the unanswered queue or ask for clarification if the present answer
is lacking.

Cheers, Henri