sudo / sudoers on macOS: regex not working but wildcards/globs are

**System:** macOS 14.6.1, M2 MacBook Air I'm trying to use a regex pattern match in my suoders file. According to the man sudoers manpage as well as the online docs , that should be supported with sudo v1.9.10 or higher. Running sudo --version on my system yields 1.9.13p2 so, should be ok there. Also, running the syntax check command below indicates that the file is being parsed successfully:

$ sudo visudo -c
/etc/sudoers: parsed OK

Here's an example line from my sudoers file which ***DOESN'T*** work:

luke  ALL=(ALL) NOPASSWD: /bin/launchctl asuser ^[0-9]+$ /usr/sbin/screencapture -D1 -p

And here's are two similar commands using regular wildcards/globs that **DO** work:

luke  ALL=(ALL) NOPASSWD: /bin/launchctl asuser ??? /usr/sbin/screencapture -D1 -p

luke  ALL=(ALL) NOPASSWD: /bin/launchctl asuser * /usr/sbin/screencapture -D1 -p

I've done as much debugging as I can but remain flummoxed. Anyone got thoughts?