[Rspamd-Users] regexp operators, how to use?

[Gerald Galster]

> Seems i was misleaded by the documentation of hyperscan, as it looks like i could do A&!B.

https://intel.github.io/hyperscan/dev-reference/compilation.html

It seems a pattern is defined as /foo/ and they mention support for logical combination
of patterns like /foo/ &! /bar/ but I don't know if that works with rspamd.

The pattern syntax itself is pcre (perl compatible regular expressions), so the perl
regular expression tutorial (perlretut) might be helpful.

Best regards
Gerald