Text na czacie.

function toUpper(text: string) :: text:
	set {_Upper::*} to ("A-B-C-D-E-F-G-H-I-J-K-L-M-N-O-P-R-S-T-U-W-X-Y-Z") split at "-"
	set {_Lower::*} to ("a-b-c-d-e-f-g-h-i-j-k-l-m-n-o-p-r-s-t-u-w-x-y-z") split at "-"
	loop {_Lower::*}:
		replace all "%loop-value%" with "%{_Upper::%loop-index%}%" in {_text}
	return {_text}
command /event [<text>]:
	permission: event
	trigger:
		if arg is not set:
			send "/event <text>"
			stop
		send "&6EVENT: &7%toUpper(arg)%" to all players

dzięki wszystko pięknie działa

Problem został rozwiązany.