DNS static entry regex - match all except word

RouterOS General
1

Hello,

i am currently facing a regex problem.
I need to specify a static regex A DNS entry, that matches all entries for my domain example.com, except the one for www.example.com, and points them to the internal address of our reverse proxy.

Using full regex, the string would be

^(?!www\.).*\.example\.com$

but mikrotik supports only basic posix regexes, where the round brackets do not work.
The closest i was able to get is this:

^[^www].*\.example\.com$

but it is far from perfect.

Any hints please?

Thanks, Stan

2

Hello,

no answer, so I am just posting final solution, that I have found myself and works

^([^w].*|w[^w].*|ww[^w].*|www.+)\.example\.com$

https://regex101.com/r/f3m7LW/2