$TSTing positional vars

[sidki3003]

(Feb. 05, 2009 05:06 AM)whenever Wrote:  

(Feb. 04, 2009 02:18 PM)sidki3003 Wrote:  until the respective positional var knows that it is supposed to be empty.

What does this mean?

Above explanation is my working hypothesis, so could be incorrect.

Positional vars were designed to be expanded only in the replacement.
Except for a few commands that can expand them immediately, like $LOG and $ADDLST.
The $TST command is rather new, IIRC.