Hello

Isn't it the wrong logic? If 'тест' matches against /[^\w]/u, wich means all alphanumeric chars and "_" (/[^\w]/) in unicode range (u), the test passes. Or am I wrong?

[^...] negates it. So it should match if there is at least one non alphanumeric character, shouldn't it?

Yes it should, I was wrong. But in the case of a negation of a class (like /\w/ or /\d/ for numbers) you can use /\W/ (/\D/) as negator instead ^.

Tschö, Auge