======Synopsis:======
[[return]]  \\
[[return]] //<arguments>//

======Description:======
[[Return]] terminates processing of the current 
  * [[alias command|alias]] (command or function) call,
  * [[defer]] command, 
  * [[exec command|exec]] callback,
  * [[load]], 
  * [[on]] hook callback,
  * [[queue]] command, 
  * [[timer]] command, 
  * [[wait|wait -cmd]] callback,
  * [[wait|wait %proc -cmd]] callback, or
  * {...} math operator.

You may optionally supply a return value which will be assigned to the 
//function_return// local variable, which is useful from:
  * The body of the {...} math operator
  * [[on|on ?type]] handlers
  * Any alias function call.

Using the [[return]] command outside of one of the above contexts yields
an error and has no effect.

======Examples:======
   alias square (arg) return ${arg * arg}
   eval echo $square(5)

will output

   25

======History======
The [[return]] command first appeared in EPIC4pre1.031.