On Sun, May 04, 2025 at 10:58:11AM +0200, Marc Haber wrote:
Okay, so that is not an acceptable fix that can go quickly into trixie.
I'd need a suggestion for a simpler regexp that will work without
libperl, that would be a short-term solution for trixie to fix the
immediate pain.
Post-trixie, I'd like to have adduser use two regexps conditionally
depending on whether libperl is installed.
I think with the help of the people at MiniDebconf Hamburg, I have come
up with a possible solution.
It looks like the \p{L} and other Unicode character classes dont match
anything if libperl is not installed. So we just extend the regexp to
match explictly what would be in ISO-8859-x, yielding the kind of
uncomfortable
commentre => qr/[-"_\.+!\$%&()\]\[;\/'’
A-Za-z0-9\x{a1}-\x{ac}\x{ae}-\x{ff}\p{L}\p{Nd}\p{Zs}]*/,
So this allows the safe special characters below 0x40, a regular space,
the latin letters in both cases, digits, the high order characters
that are different in any ISO-8859 charset (explicitly excluding the
non-breaking space and soft hyphen), followed by the Unicode Letters,
Unicode Digits and Unicode Whitespace.
So, on a system without full perl (and probably with a non
UTF-8-locale), this will match most languages that have an ISO-8859
charset. In a full system, we have full Unicode support.
Would this help the installer?
Greetings
Marc
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