Added in 1.9.0

$!

Can be used to delay evaluating a identifier, useful in commands such as /timer.

Each evaluation will remove a '!' prefix.

Example

; Evaluate to $me instead of nick.
//echo -ag $eval($!me) vs $eval($me)

; Evaluate to $!me instead of $!me.
//echo -ag $eval($!!me) vs $eval($!me) vs $eval($me)

//timer 5 1 echo -a this always show the time at timer launch $asctime
//timer 5 1 echo -a this always show the new time at each timer execution $!asctime