Bug in luatex handling of hidden dirs in TEXMFVAR

[Volker Kuhlmann]

On Fri 07 Nov 2025 01:26:07 NZDT +1300, Max Chernoff via tex-live wrote:

>     - When is set to ‘r’ (for “restricted”), filenames beginning with
>       ‘.’ are disallowed.

File or directory names starting with "." are not special and don't have
a higher security risk (I'd like an example of this if I'm wrong). They
reduce screen clutter. To me disallowing them is a broken implementation
arbitrarily restricting my naming conventions that have existed for
decades.

>       3. Finally, any attempt to go up a directory level is forbidden;
>          that is, paths may not contain a ‘..’ component.

That is very wise. Is it difficult to distinguish "^\.\." from "^\.[^.]"
(using REs) or two dots from (one dot followed by a non-dot)?

Volker

-- 
Volker Kuhlmann
http://volker.top.geek.nz/	Please do not CC list postings to me.