Hello, some spam bots use specific nicks, and these nicks contain strings, the bots which I want to keep out use only nicks without special chars, and without caps, example of such nick: mxjklz and if I make bot check nicks on join and check if they nick don't contain specific spam bot strings: {[string match "*mx*" $nick]} {....proc here, mxjklz gets banned but for example Nickmx would get banned too, and it's case sensitive nick so it ain't one of the bots I want to be banned.
I want bot do nothing if a nick contains caps/special chars/numbers.
I'd be grateful if someone enlighted me

Thanks in advance,
Nexus6