Hi Steven
The REMOVE statement process a multivalued list. The SETTING clause will
set the variable to either 3, or 2, or 1, or 0 depending on the value of
the delimiter last encountered...
1 for @FM
2 for @VM
3 for @SM
0 for End Of String
If the array consists only of @FM, then MORE will be set to 1 for each
iteration (since the delimiter it is encountering each time is an @FM) and
then, when the last element is read, MORE will be set to ZERO, and the
WHILE MORE will fail, thus the loop is exited.
If FM.ARRAY is empty, MORE will return as 0 and the loop will exit, but
you're right - the "WHILE MORE" line should be one line higher..
UNIQ.LIST = ''
LOOP
REMOVE NEXT.ID <http://next.id/> FROM FM.ARRAY SETTING MORE
WHILE MORE
LOCATE(NEXT.ID <http://next.id/>,UNIQ.LIST,1;POS) ELSE
UNIQ.LIST<-1> = NEXT.ID <http://next.id/>
REPEAT
the WHILE statement is in effect a "while it is not zero" and the second it
becomes a zero, the loop exits.
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