@rafaello , IANAL, and I don’t own the trademark, but with your clarifications and updates, I believe you’re probably not violating the trademark (IMO). It’s good to see someone who is willing to accept such feedback (rather than digging in your heels for a while, like happened with the aforementioned fork).

An alternative Regular expression can be to introduce a negative lookahead between .*? and the code just after it in this Regex: <code.*?code\x20\{\s*font-family

Another example can be seen at https://community.notepad-plus-plus.org/topic/27601/with-the-help-of-a-regex-how-to-find-code-preceded-by-a-only-if-code-is-absent-between-style-and-style-in-the-css-section-which-is-below/4

@PeterJones Perfect thank you very much!