XBXTSS	;OHPRD-TUCSON/BRJ;EXTRACT AND TABLE SUBSCRIPTS 
	;;4.0;XB;;Jul 20, 2009;Build 2
	; X=SUBSCRIPT LIST ENCLOSED IN PARENTHESES PASSED BY CALLER
	; Y IS RETURNED AS:
	;   Y=0           X VALUE NOT A PROPER SUBSCRIPT FORMAT
	;                  OR (SOME KIND OF ERROR ENCOUNTERED)
	;   Y=n           n=NUMBER OF SUBSCRIPTS IN X
	;   Y(n)=value    ARRAY OF SUBSCRIPTS
	;                 n=SUBSCRIPT POSITION
	;                 value=SUBSCRIPT VALUE
EN	; ENTRY
	S $ZT="ZT" ; SET ERROR TRAP IN CASE OF BAD VALUE IN X
	K ^XBXTSS,Y ; REMOVE POSSIBLE GARBAGE
	S @("^XBXTSS"_X)="" ; SET DUMMY GLOBAL NODE
	; USE NAKED REFERENCE TO HOP DOWN SUBSCRIPTS AND STACK THEM IN Y
	S XBSS=$O(^XBXTSS("")) ; GET FIRST SUBSCRIPT - SET NAKED FOR NEXT LINE
	F Y=1:1 S Y(Y)=XBSS,XBSS=$O(^(XBSS,"")) Q:XBSS=""  ;STACK SUBSCRIPTS IN Y(Y)
	K XBSS,^XBXTSS ; CLEANUP
	Q  ; RETURN TO CALLER
ZT	; TRAP ERRORS RETURN Y=0
	S $ZE="",$ZT=""
	K Y
	S Y=0 ; RETURN ERROR TO CALLER
	Q