{{htmlmetatags>metatag-description:(ICL George 3 and George 4 GIN macro: THEN)}}
====== THEN ======
(GIN Macro)

**Defined in:** [[george:source:IFMACS|IFMACS]]

**Used in:** [[george:source:ARCHIVE867|ARCHIVE867]], [[george:source:ASTONIF867|ASTONIF867]], [[george:source:CONSET864|CONSET864]], [[george:source:EDITPT867|EDITPT867]], [[george:source:EDWRITE867|EDWRITE867]], [[george:source:FORMLOOP865|FORMLOOP865]], [[george:source:GETFREE867|GETFREE867]], [[george:source:GETFREEB864|GETFREEB864]], [[george:source:GETWORD867|GETWORD867]], [[george:source:HOWBIG867|HOWBIG867]], [[george:source:IDFASAT867|IDFASAT867]], [[george:source:IDFCONF867|IDFCONF867]], [[george:source:IPBLISTA867|IPBLISTA867]], [[george:source:IPBLISTD867|IPBLISTD867]], [[george:source:LISTDIRF867|LISTDIRF867]], [[george:source:LISTFILE867|LISTFILE867]], [[george:source:LISTIDF867|LISTIDF867]], [[george:source:LISTINIT867|LISTINIT867]], [[george:source:LISTLOOP867|LISTLOOP867]], [[george:source:LISTNEXT867|LISTNEXT867]], [[george:source:LISTOPEN867|LISTOPEN867]], [[george:source:LISTPARS867|LISTPARS867]], [[george:source:LISTRING864|LISTRING864]], [[george:source:OPER864|OPER864]], [[george:source:OPERA864|OPERA864]], [[george:source:OPERAPP864|OPERAPP864]], [[george:source:OPERIN867|OPERIN867]], [[george:source:PCTBEGIN863|PCTBEGIN863]], [[george:source:PERCON867|PERCON867]], [[george:source:PERFCHAP866|PERFCHAP866]], [[george:source:PERFPASS864|PERFPASS864]], [[george:source:RAECOMMS867|RAECOMMS867]], [[george:source:SHOWCOMM864|SHOWCOMM864]], [[george:source:TPOBJ867|TPOBJ867]], [[george:source:TROBJ867|TROBJ867]], [[george:source:WA864|WA864]], [[george:source:WHATGENS867|WHATGENS867]], [[george:source:WHATPROP865|WHATPROP865]], [[george:source:WHATRVS867|WHATRVS867]], [[george:source:WHATRVSA867|WHATRVSA867]], [[george:source:WLA867|WLA867]], [[george:source:WLAA867|WLAA867]], [[george:source:WLB867|WLB867]], [[george:source:WLC867|WLC867]], [[george:source:WLD864|WLD864]], [[george:source:WLE862|WLE862]], [[george:source:WLF862|WLF862]], [[george:source:WLG862|WLG862]], [[george:source:WLOUT865|WLOUT865]]

<code - THEN.mac.txt>
 2K3B    [   
 2KH2    [   
 2L2L    [??? THEN SECT DEVT FGN 1 DOC   
 2LG=    [   
 2L^W    #MAC           THEN 
 2MFG    [              ==== 
 2M^6    [   
 2NDQ    [ ENSURES:  
 2NYB    [     DEPTH NON-ZERO
 2PD2    [     CURRENT STRUCTURE = CONDITIONAL   
 2PXL    [     'OR' NOT EXPECTED 
 2QC=    [     'THEN' NOT FOUND  
 2QWW    [ COMPILES: 
 2RBG    [     'THEN' LABEL  
 2RW6    [   
 2S*Q    #UNS           NESTDEPTH
 2STB    (   
 2T*2          STRUCTURE 1,CHECK 
 2TSL          FLAGTEST THEN,0,NOT,0,NOT,THEN
 2W#=    #ALT           NESTFLAG=NESTFLAG^1  
 2WRW    #SKI           NESTDEPTH/9  
 2X?G    (   
 2XR6    #ALT           20?=NESTDEPTH-9  
 2Y=Q          NESTLABEL NIF6,FREE   
 2YQB    #EXI
 2^=2    )   
 2^PL    #ALT           20?=NESTDEPTH-1  
 329=          NESTLABEL NIF1,FREE   
 32NW    #EXI
 338G    )   
 33N6    !! MEANINGLESS AT NESTING DEPTH ZERO !!!
 347Q    #NOR
</code>