The scripting engine will catch all un-handled errors and append these errors
to the script's terminating DCS message. Therefore, the script writer
may also throw exceptions that will automatically be transmitted out on the
operation's completed message. For example, the following code within a script would
terminate the script with a completed message and an error
of negativeNumber. BLU-ICE clients could interpret this message
and handle it however they wished.
if { $value < 0 } {
return -code error negativeNumber
}