Yup, its just a single function.
function et_ClientCommand(clientNum, cmd)
cmd = string.lower(cmd)
if string.find(et.trap_Argv(1), "!rename") or cmd == "!rename" then
if string.find(et.ConcatArgs(1), "\\") then
et.trap_SendServerCommand( clientNum, "print \"^orename: ^7can't use names with a \'\\\'\n\"" )
return 1
else
return 0
end
end
end