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DIFGGU	;SFISC/XAK,EDE(OHPRD)-FILEGRAM FUNCTIONS  ; [ 11/10/92  10:38 AM ]
	;;21.0;VA FileMan;;Dec 28, 1994
	;Per VHA Directive 10-93-142, this routine should not be modified.
	; Required variables:
	;
	;   DILC
	;   DITAB
	;   DIFG("PARM")
	;   DIFG("FGR")
	;   DILL
	;   DIFG(DILL,"FILE")
	;   DIFG(DILL,"FNAME")
	;   DIFG(DILL,"FE")
	;   DIFG(DILL,"FGBL")
	;   DIFG(DILL,"FUNC")
	;
	Q  ; INVALID ENTRY POINT
	;
LOOKUP	; EXTERNAL ENTRY POINT
	; LOOKUP ENTRY IN FILE/SUBFILE
	D SETX
	Q:$D(DIFGGUQ)
	S Z=""
	I '$D(^UTILITY("DIFGLINK",$J,DIFG(DILL,"FILE"),DIFG(DILL,"FE"))) D SETLINK
	I $D(^DD(DIFG(DILL,"FILE"),0,"UP")) S A=^("UP"),B=$O(^DD(A,"SB",DIFG(DILL,"FILE"),0)),C=$P(^DD(A,B,0),U,1),V=C_U_$S(DIFG("PARM")["N":B,1:"") K A,B,C
	E  S V=DIFG(DILL,"FNAME")_U_$S(DIFG("PARM")["N":DIFG(DILL,"FILE"),1:"")
	S V=V_$S($D(DIFG(DILL,"NAV")):":",1:"")_U_DIFG(DILL,"FUNC")_"="_X
	I $D(DIFG(DILL,"NAV")),DIFG(DILL,"NAV")=1,$G(DIFG(DILL,"XREF"))?1A.E S V=V_U_DIFG(DILL,"XREF")_"=@"_^UTILITY("DIFGLINK",$J,DIFG(DILL-1,"FILE"),DIFG(DILL-1,"FE"))
	D INCSET
	D:Z'="" SPBLK
	K S,V,X,Z
	Q
	;
SETLINK	;
	S ^UTILITY("DIFGLINK",$J)=$S($D(^UTILITY("DIFGLINK",$J))#2:^UTILITY("DIFGLINK",$J)+1,1:1),^UTILITY("DIFGLINK",$J,DIFG(DILL,"FILE"),DIFG(DILL,"FE"))=^UTILITY("DIFGLINK",$J)
	S Z="@"_^UTILITY("DIFGLINK",$J)
	Q
	;
SETX	; SET X TO @LINK OR LOOKUP VALUE
	S X=""
	D SETX2
	Q:$D(DIFGGUQ)
	Q:X'=""
	I $D(DIFGGU(DIFG(DILL,"FILE"),DIFG(DILL,"FE"),.01)) S X=DIFGGU(DIFG(DILL,"FILE"),DIFG(DILL,"FE"),.01) Q
	K ^UTILITY("DIQ1",$J,DIFG(DILL,"FILE"))
	I '$D(DIFG(DILL,"MUL")) S DIC=DIFG(DILL,"FILE"),DA=DIFG(DILL,"FE"),DR=".01"
	S DIQ(0)="N" D EN^DIQ1 K DIQ
	S X=^UTILITY("DIQ1",$J,DIFG(DILL,"FILE"),DIFG(DILL,"FE"),.01)
	K ^UTILITY("DIQ1",$J,DIFG(DILL,"FILE"))
	I '$D(DIFG(DILL,"MUL")) K DA,DIC,DR
	Q
	;
SETX2	; IF POINTER AND ALREADY LOOKED UP SET @LINK
	K DIFGGUQ
	I $D(^UTILITY("DIFGLINK",$J,DIFG(DILL,"FILE"),DIFG(DILL,"FE"))) S X="@"_^UTILITY("DIFGLINK",$J,DIFG(DILL,"FILE"),DIFG(DILL,"FE"))_"E"
	Q:$P(^DD(DIFG(DILL,"FILE"),.01,0),U,2)'["P"
	S X=+$P($P(^DD(DIFG(DILL,"FILE"),.01,0),U,2),"P",2)
	I $D(DIFGGU(DIFG(DILL,"FILE"),DIFG(DILL,"FE"),.01,"P")) S Y=DIFGGU(DIFG(DILL,"FILE"),DIFG(DILL,"FE"),.01,"P") I 1
	E  S Y=$P(@(DIFG(DILL,"FGBL")_DIFG(DILL,"FE")_",0)"),U,1)
	NEW G
	S G="^"_$P(^DD(DIFG(DILL,"FILE"),.01,0),U,3)
	I '$D(@(G_Y_",0)")) S DIFGGUQ=1 Q
	S X=$S($D(^UTILITY("DIFGLINK",$J,X,Y)):"@"_^UTILITY("DIFGLINK",$J,X,Y),1:"")
	K Y
	Q
	;
SPBLK	; SPECIAL BLOCK
	S DITAB=DITAB+2
	D ^DIFGGSB
	S DITAB=DITAB-2
	Q
	;
INCSET	; EXTERNAL ENTRY POINT
	; INCREMENT LINE COUNT AND SET LINE
	S DILC=DILC+1
	S S=""
	I '$D(DIFG("WP")) S:DITAB $P(S," ",DITAB)=" "
	S @(DIFG("FGR")_DILC_",0)")=S_V
	Q
	;
KILLLL	; EXTERNAL ENTRY POINT
	; KILL LAST LINE, DECREMENT LINE COUNT, KILL LAST LINK, DECREMENT LINK COUNT
	D KILLDEC,DELLINK
	Q
	;
KILLDEC	; EXTERNAL ENTRY POINT
	; KILL LAST LINE AND DECREMENT LINE COUNT
	K @(DIFG("FGR")_DILC_",0)")
	S DILC=DILC-1
	Q
	;
DELLINK	; EXTERNAL ENTRY POINT
	; DELETE LAST @LINK AND DECREMENT LINK COUNTER
	K ^UTILITY("DIFGLINK",$J,DIFG(DILL,"FILE"),DIFG(DILL,"FE"))
	S ^UTILITY("DIFGLINK",$J)=^UTILITY("DIFGLINK",$J)-1
	Q