$functioncall()

• This function returns 1 if the current script context is expecting a return value (ie, in an alias called as a function and not as a command.)
• This function returns 0 in all other circumstances, including but not limited to aliases executed as commands, /on bodies, /userhost -cmd bodies, and any other place where a return value is not expected.

This function can be used to slightly alter the behavior of your aliases depending on whether they are called as a command or as a function.

The return value is either 0 or 1, depending on whether the current script context is a function call or not.