--- /dev/null
+
+<PACKAGE "CHKDCL">
+
+<ENTRY TYPE-AND
+ TYPE-OK?
+ TASTEFUL-DECL
+ GET-ELE-TYPE
+ STRUCTYP
+ TYPE-ATOM-OK?
+ ISTYPE-GOOD?
+ TYPE-MERGE
+ DEFERN
+ TOP-TYPE
+ ISTYPE?
+ TYPESAME
+ ANY-PAT
+ STRUC
+ GETBSYZ
+ GEN-DECL
+ REST-DECL
+ MINL
+ GET-RANGE>
+
+
+<USE "COMPDEC">
+
+<SETG DECL-RESTED 1>
+
+<SETG DECL-ELEMENT 2>
+
+<SETG DECL-ITEM-COUNT 3>
+
+<SETG DECL-IN-REST 4>
+
+<SETG DECL-IN-COUNT-VEC 5>
+
+<SETG DECL-REST-VEC 6>
+
+<MANIFEST DECL-RESTED
+ DECL-ELEMENT
+ DECL-ITEM-COUNT
+ DECL-IN-REST
+ DECL-IN-COUNT-VEC
+ DECL-REST-VEC>
+
+<SETG HIGHBOUND 2>
+
+<SETG LOWBOUND 1>
+
+<MANIFEST HIGHBOUND LOWBOUND>
+
+<SETG ALLWORDS '<PRIMTYPE WORD>>
+
+<DEFINE TASTEFUL-DECL (D "AUX" TEM)
+ <COND (<OR <NOT .D> <==? .D NO-RETURN>> ANY)
+ (<AND <TYPE? .D ATOM> <VALID-TYPE? .D>> .D)
+ (<AND <OR <TYPE? <SET TEM .D> ATOM> <SET TEM <ISTYPE? .D>>>
+ <GET .TEM DECL>>
+ .TEM)
+ (<TYPE? .D FORM SEGMENT>
+ <COND (<LENGTH? .D 1>
+ <OR <AND <EMPTY? .D> ANY> <TASTEFUL-DECL <1 .D>>>)
+ (<==? <1 .D> FIX> FIX)
+ (<AND <==? <LENGTH .D> 2> <==? <1 .D> NOT>> ANY)
+ (<TYPE? .D SEGMENT>
+ <CHTYPE <MAPF ,LIST ,TASTEFUL-DECL .D> SEGMENT>)
+ (ELSE <CHTYPE <MAPF ,LIST ,TASTEFUL-DECL .D> FORM>)>)
+ (<TYPE? .D VECTOR>
+ [<COND (<==? <1 .D> OPT> OPTIONAL) (ELSE <1 .D>)>
+ !<MAPF ,LIST ,TASTEFUL-DECL <REST .D>>])
+ (ELSE .D)>>
+
+<DEFINE TMERGE (P1 P2)
+ <COND (<OR <AND <TYPE? .P1 FORM SEGMENT>
+ <==? <LENGTH .P1> 2>
+ <TYPE? <2 .P1> LIST>>
+ <AND <TYPE? .P2 FORM SEGMENT>
+ <==? <LENGTH .P2> 2>
+ <TYPE? <2 .P2> LIST>>
+ <CTMATCH .P1 .P2 <> <> T>>
+ <CTMATCH .P1 .P2 T T <>>)
+ (<=? .P1 '<NOT ANY>> .P2)
+ (<=? .P2 '<NOT ANY>> .P1)
+ (ELSE <CHTYPE (OR !<PUT-IN <PUT-IN () .P1> .P2>) FORM>)>>
+
+<DEFINE TYPE-AND (P1 P2) <CTMATCH .P1 .P2 T <> <>>>
+
+<DEFINE TMATCH (P1 P2) <CTMATCH .P1 .P2 <> <> <>>>
+
+<DEFINE CTMATCH (P1 P2 ANDF ORF MAYBEF)
+ #DECL ((ANDF ORF MAYBEF) <SPECIAL <OR FALSE ATOM>>)
+ <DTMATCH .P1 .P2>>
+
+<DEFINE DTMATCH (PAT1 PAT2)
+ <OR .PAT1 <SET PAT1 ANY>>
+ <OR .PAT2 <SET PAT2 ANY>>
+ <COND (<=? .PAT1 .PAT2> .PAT1)
+ (<TYPE? <SET PAT1 <VTS .PAT1>> ATOM> <TYPMAT .PAT1 <VTS .PAT2>>)
+ (<TYPE? <SET PAT2 <VTS .PAT2>> ATOM> <TYPMAT .PAT2 .PAT1>)
+ (<AND <TYPE? .PAT1 FORM SEGMENT> <TYPE? .PAT2 FORM SEGMENT>>
+ <TEXP1 .PAT1 .PAT2>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>>
+
+<DEFINE VTS (X)
+ <OR <AND <TYPE? .X ATOM>
+ <OR <VALID-TYPE? .X>
+ <MEMQ .X '![STRUCTURED LOCATIVE APPLICABLE ANY!]>>
+ .X>
+ <AND <TYPE? .X ATOM> <GET .X DECL>>
+ .X>>
+
+<DEFINE 2-ELEM (OBJ)
+ #DECL ((OBJ) <PRIMTYPE LIST>)
+ <AND <NOT <EMPTY? .OBJ>> <NOT <EMPTY? <REST .OBJ>>>>>
+
+<DEFINE TYPMAT (TYP PAT "AUX" TEM)
+ #DECL ((TYP) ATOM)
+ <OR <SET TEM
+ <COND (<TYPE? .PAT ATOM>
+ <OR <AND <==? .PAT ANY> <COND (.ORF ANY) (ELSE .TYP)>>
+ <AND <==? .TYP ANY> <COND (.ORF ANY) (ELSE .PAT)>>
+ <AND <=? .PAT .TYP> .TYP>
+ <STRUC .TYP .PAT T>
+ <STRUC .PAT .TYP <>>>)
+ (<TYPE? .PAT FORM SEGMENT> <TEXP1 .PAT .TYP>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>>
+ <AND <EMPTY? .TEM>
+ <OR <AND <N==? <SET TEM <VTS .TYP>> .TYP> <DTMATCH .TEM .PAT>>
+ <AND <N==? <SET TEM <VTS .PAT>> .PAT>
+ <TYPMAT .TYP .TEM>>>>>>
+
+"\f"
+
+<DEFINE TEXP1 (FORT PAT)
+ #DECL ((FORT) <OR FORM SEGMENT>)
+ <COND (<EMPTY? .FORT> #FALSE (EMPTY-TYPE-FORM!-ERRORS))
+ (<MEMQ <1 .FORT> '![OR AND NOT PRIMTYPE!]> <ACTORT .FORT .PAT>)
+ (<AND <==? <1 .FORT> QUOTE> <2-ELEM .FORT>>
+ <DTMATCH <GEN-DECL <2 .FORT>> .PAT>)
+ (ELSE <FORMATCH .FORT .PAT>)>>
+
+<DEFINE ACTORT (FORT PAT "AUX" (ACTOR <1 .FORT>) TEM1)
+ #DECL ((FORT) <PRIMTYPE LIST>)
+ <COND
+ (<==? .ACTOR OR>
+ <COND
+ (<EMPTY? <SET FORT <REST .FORT>>>
+ #FALSE (EMPTY-OR-MATCH!-ERRORS))
+ (ELSE
+ <REPEAT (TEM (AL ()))
+ #DECL ((AL) LIST)
+ <COND
+ (<OR <AND <TYPE? <SET TEM <1 .FORT>> ATOM>
+ <PROG ()
+ <COND (<VALID-TYPE? .TEM>)
+ (<SET TEM1 <GET .TEM DECL>>
+ <SET TEM .TEM1>
+ <AND <TYPE? .TEM ATOM> <AGAIN>>)
+ (ELSE T)>>
+ <SET TEM <TYPMAT .TEM .PAT>>>
+ <AND <TYPE? .TEM FORM SEGMENT> <SET TEM <TEXP1 .TEM .PAT>>>>
+ <COND (<==? .ACTOR OR>
+ <COND (.ANDF
+ <COND (.TEM
+ <COND (<==? .TEM ANY> <RETURN ANY>)>
+ <COND (.ORF <SET AL <PUT-IN .AL .TEM>>)
+ (ELSE
+ <OR <MEMBER .TEM .AL>
+ <SET AL (.TEM !.AL)>>)>)>)
+ (ELSE <RETURN T>)>)>)
+ (<NOT <EMPTY? .TEM>> <RETURN .TEM>)>
+ <COND (<EMPTY? <SET FORT <REST .FORT>>>
+ <RETURN <AND <NOT <EMPTY? .AL>>
+ <COND (<EMPTY? <REST .AL>> <1 .AL>)
+ (ELSE
+ <ORSORT <CHTYPE (.ACTOR !.AL)
+ FORM>>)>>>)>>)>)
+ (<==? .ACTOR NOT> <NOT-IT .FORT .PAT>)
+ (ELSE <PTACT .FORT .PAT>)>>
+
+<DEFINE PTACT (FORTYP PAT)
+ <COND (<TYPE? .FORTYP FORM SEGMENT>
+ <COND (<AND <2-ELEM .FORTYP> <==? <1 .FORTYP> PRIMTYPE>>
+ <PRIMATCH .FORTYP .PAT>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>)
+ (<TYPE? .FORTYP ATOM> <TYPMAT .FORTYP .PAT>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>>
+
+"\f"
+
+<DEFINE STRUC (WRD TYP ACTAND)
+ #DECL ((TYP) ATOM)
+ <PROG ()
+ <COND (<COND (<==? .WRD STRUCTURED>
+ <COND (<==? .TYP LOCATIVE> <>)
+ (<==? .TYP APPLICABLE>
+ <RETURN <COND (.ORF '<OR APPLICABLE STRUCTURED>)
+ (ELSE
+ '<OR RSUBR RSUBR-ENTRY FUNCTION CLOSURE MACRO>)>>)
+ (<AND <VALID-TYPE? .TYP>
+ <MEMQ <TYPEPRIM .TYP>
+ '![LIST VECTOR UVECTOR TEMPLATE STRING TUPLE
+ STORAGE BYTES!]>>)>)
+ (<==? .WRD LOCATIVE>
+ <MEMQ .TYP '![LOCL LOCAS LOCD LOCV LOCU LOCS LOCA!]>)
+ (<==? .WRD APPLICABLE>
+ <COND (<==? .TYP LOCATIVE> <RETURN <>>)
+ (<==? .TYP STRUCTURED>
+ <RETURN <STRUC .TYP .WRD .ACTAND>>)
+ (<MEMQ .TYP
+ '![RSUBR SUBR FIX FSUBR FUNCTION
+ RSUBR-ENTRY MACRO CLOSURE
+ OFFSET!]>)>)>
+ <COND (.ORF .WRD) (ELSE .TYP)>)
+ (ELSE
+ <COND (<AND .ORF <NOT .ACTAND>> <ORSORT <FORM OR .WRD .TYP>>)
+ (ELSE <>)>)>>>
+
+<DEFINE PRIMATCH (PTYP PAT "AUX" PAT1 ACTOR TEM)
+ #DECL ((PAT1) <PRIMTYPE LIST>
+ (PTYP) <OR <FORM ANY ANY> <SEGMENT ANY ANY>>)
+ <COND (<AND <TYPE? .PAT FORM SEGMENT>
+ <SET PAT1 .PAT>
+ <==? <LENGTH .PAT1> 2>
+ <==? <1 .PAT1> PRIMTYPE>>
+ <COND (<==? <2 .PAT1> <2 .PTYP>> .PAT1)
+ (ELSE <COND (.ORF <ORSORT <FORM OR .PAT1 .PTYP>>)>)>)
+ (<TYPE? .PAT ATOM>
+ <COND (<==? .PAT ANY> <COND (.ORF ANY) (.ANDF .PTYP) (ELSE T)>)
+ (<MEMQ .PAT '![STRUCTURED LOCATIVE APPLICABLE!]>
+ <COND (<STRUC .PAT <2 .PTYP> T>
+ <COND (.ORF .PAT) (ELSE .PTYP)>)
+ (ELSE <COND (.ORF <ORSORT <FORM OR .PAT .PTYP>>)>)>)
+ (<AND <VALID-TYPE? .PAT>
+ <==? <TYPEPRIM .PAT> <2 .PTYP>>
+ <COND (.ORF .PTYP) (ELSE .PAT)>>)
+ (ELSE <COND (.ORF <ORSORT <FORM OR .PTYP .PAT>>)>)>)
+ (<AND <TYPE? .PAT FORM SEGMENT>
+ <SET PAT1 .PAT>
+ <NOT <EMPTY? .PAT1>>>
+ <COND (<==? <SET ACTOR <1 .PAT1>> OR> <ACTORT .PAT .PTYP>)
+ (<==? .ACTOR NOT>
+ <COND (.ORF <NOT-IT .PAT .PTYP>)
+ (ELSE
+ <SET TEM <PRIMATCH .PTYP <2 .PAT1>>>
+ <COND (<AND <NOT .TEM> <EMPTY? .TEM>> .PTYP)
+ (<NOT .TEM> .TEM)
+ (<N=? .TEM .PTYP> ANY)>)>)
+ (<SET TEM <PRIMATCH .PTYP <1 .PAT1>>>
+ <COND (.ORF .TEM)
+ (.ANDF <COND (<TYPE? .PAT FORM>
+ <FORM .TEM !<REST .PAT1>>)
+ (ELSE
+ <CHTYPE (.TEM !<REST .PAT1>) SEGMENT>)>)
+ (ELSE T)>)>)>>
+
+"\f"
+
+<DEFINE NOT-IT (NF PAT "AUX" T1)
+ #DECL ((NF) <OR FORM SEGMENT>)
+ <COND (<AND <TYPE? .PAT FORM SEGMENT>
+ <NOT <EMPTY? .PAT>>
+ <OR <==? <1 .PAT> OR> <==? <1 .PAT> AND>>>
+ <ACTORT .PAT .NF>)
+ (ELSE
+ <COND (<==? <LENGTH .NF> 2>
+ <COND (<NOT <SET T1 <TYPE-AND <2 .NF> .PAT>>>
+ <COND (.ORF .NF) (.ANDF .PAT) (ELSE T)>)
+ (<==? <2 .NF> ANY> <COND (.ORF .PAT)>)
+ (<AND <N==? .T1 .PAT>
+ <N=? .T1 .PAT>
+ <N=? <CANONICAL-DECL .PAT>
+ <CANONICAL-DECL .T1>>>
+ <COND (<OR .ANDF .ORF> ANY) (ELSE T)>)
+ (.ORF ANY)>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>)>>
+
+<DEFINE NOTIFY (D)
+ <COND (<AND <TYPE? .D FORM SEGMENT>
+ <==? <LENGTH .D> 2>
+ <==? <1 .D> NOT>>
+ <2 .D>)
+ (ELSE <FORM NOT .D>)>>
+"\f"
+
+<DEFINE FORMATCH (FRM RPAT "AUX" TEM (PAT .RPAT) EX)
+ #DECL ((FRM) <OR <FORM ANY> <SEGMENT ANY>>
+ (RPAT) <OR ATOM FORM LIST SEGMENT VECTOR FIX>)
+ <COND
+ (<AND <TYPE? .RPAT ATOM> <TYPE? <1 .FRM> ATOM> <==? <1 .FRM> .RPAT>>
+ <COND (.ORF .RPAT) (ELSE .FRM)>)
+ (ELSE
+ <COND (<TYPE? .RPAT ATOM> <SET PAT <SET EX <GET .RPAT DECL '.RPAT>>>)
+ (ELSE <SET RPAT <1 .PAT>>)>
+ <COND
+ (<TYPE? .PAT ATOM>
+ <SET TEM
+ <COND (<AND .ORF <NOT <CTMATCH .PAT <1 .FRM> <> <> T>>>
+ <ORSORT <FORM OR .RPAT .FRM>>)
+ (ELSE
+ <COND (<TYPE? <1 .FRM> ATOM> <TYPMAT <1 .FRM> .PAT>)
+ (<TYPE? <1 .FRM> FORM> <ACTORT <1 .FRM> .PAT>)>)>>
+ <COND (<AND .ANDF <NOT .ORF> .TEM>
+ <COND (<TYPE? .FRM FORM> <CHTYPE (.TEM !<REST .FRM>) FORM>)
+ (ELSE <CHTYPE (.TEM !<REST .FRM>) SEGMENT>)>)
+ (ELSE .TEM)>)
+ (<TYPE? .PAT FORM SEGMENT>
+ <COND (<MEMQ <1 .PAT> '![OR AND NOT PRIMTYPE!]> <ACTORT .PAT .FRM>)
+ (ELSE
+ <COND (<AND <==? <LENGTH .PAT> 2> <TYPE? <2 .PAT> LIST>>
+ <WRDFX .PAT .FRM .RPAT>)
+ (<AND <G=? <LENGTH .PAT> 2> <TYPE? <2 .PAT> FIX>>
+ <BYTES-HACK .PAT .FRM .RPAT>)
+ (<AND <G=? <LENGTH .FRM> 2> <TYPE? <2 .FRM> FIX>>
+ <BYTES-HACK .FRM .PAT <1 .FRM>>)
+ (<AND .ORF
+ <ASSIGNED? EX>
+ <NOT <CTMATCH .RPAT .FRM <> <> T>>>
+ <ORSORT <FORM OR .RPAT .FRM>>)
+ (<AND .ORF <NOT <CTMATCH .PAT .FRM <> <> T>>>
+ <ORSORT <FORM OR .PAT .FRM>>)
+ (ELSE
+ <SET TEM <ELETYPE .PAT .FRM .RPAT>>
+ <AND <ASSIGNED? EX>
+ <TYPE? .TEM FORM SEGMENT>
+ <G? <LENGTH .TEM> 1>
+ <==? <1 .TEM> OR>
+ <MAPR <>
+ <FUNCTION (EL)
+ <AND <=? <1 .EL> .EX>
+ <PUT .EL 1 .RPAT>
+ <MAPLEAVE>>>
+ <REST .TEM>>>
+ .TEM)>)>)>)>>
+
+"\f"
+
+<DEFINE BYTES-HACK (F1 F2 RPAT "AUX" FST TL TEM SEGF MLF1 MLF2)
+ #DECL ((F1 F2) <OR FORM SEGMENT> (MLF1 MLF2) FIX)
+ <SET SEGF <SEGANDOR .F1 .F2 .ORF>>
+ <COND (<OR <EMPTY? .F1> <EMPTY? .F2>> #FALSE (EMPTY-FORM-IN-DECL!-ERRORS))>
+ <SET FST
+ <COND (<TYPE? .RPAT ATOM>
+ <COND (<TYPE? <1 .F2> ATOM> <TYPMAT <1 .F2> .RPAT>)
+ (<TYPE? <1 .F2> FORM> <ACTORT <1 .F2> .RPAT>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>)
+ (<TYPE? .RPAT FORM> <ACTORT .RPAT <1 .F2>>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>>
+ <COND
+ (<NOT .FST> .FST)
+ (ELSE
+ <COND
+ (<CTMATCH .RPAT '<PRIMTYPE BYTES> <> <> <>>
+ <SET MLF1 <MINL .F1>>
+ <SET MLF2 <MINL .F2>>
+ <COND (<AND <G=? <LENGTH .F2> 2> <TYPE? <2 .F2> FIX>>
+ <COND (<CTMATCH <1 .F2> '<PRIMTYPE BYTES> <> <> <>>
+ <COND (.ORF
+ <COND (<==? <2 .F2> <2 .F1>>
+ <FOSE .SEGF .FST <2 .F1> <MIN .MLF1 .MLF2>>)
+ (ELSE <ORSORT <FORM OR .F1 .F2>>)>)
+ (<AND <==? <2 .F2> <2 .F1>>
+ <NOT <AND <TYPE? .F1 SEGMENT>
+ <TYPE? .F2 SEGMENT>
+ <N==? <2 .F1> <2 .F2>>>>>
+ <FOSE .SEGF .FST <2 .F1> <MAX .MLF1 .MLF2>>)>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>)
+ (<TMATCH .F2 '<PRIMTYPE BYTES>>
+ <COND (.ORF
+ <COND (<TMATCH .F2
+ <SET TEM
+ <COND (<0? .MLF1>
+ <FOSE .SEGF
+ <1 .F1>
+ '[REST FIX]>)
+ (ELSE
+ <FOSE .SEGF
+ <1 .F1>
+ [.MLF1 FIX]
+ '[REST FIX]>)>>>
+ <TYPE-MERGE .TEM .F2>)
+ (ELSE <ORSORT <FORM .F1 .F2>>)>)
+ (<TMATCH .F2
+ <COND (<0? .MLF1>
+ <FOSE .SEGF STRUCTURED '[REST FIX]>)
+ (ELSE
+ <FOSE .SEGF
+ STRUCTURED
+ [.MLF1 FIX]
+ '[REST FIX]>)>>
+ <FOSE .SEGF .FST <2 .F1> <MAX .MLF2 .MLF1>>)>)
+ (ELSE <COND (.ORF <ORSORT <FORM OR .F1 .F2>>) (ELSE <>)>)>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>)>>
+
+<DEFINE FOSE ("TUPLE" TUP "AUX" (FLG <1 .TUP>))
+ <COND (.FLG <CHTYPE (!<REST .TUP>) SEGMENT>)
+ (ELSE <CHTYPE (!<REST .TUP>) FORM>)>>
+
+<DEFINE SEGANDOR (F1 F2 ORF)
+ <COND (.ORF <AND <TYPE? .F1 SEGMENT> <TYPE? .F2 SEGMENT>>)
+ (ELSE <OR <TYPE? .F1 SEGMENT> <TYPE? .F2 SEGMENT>>)>>
+
+<DEFINE WRDFX (F1 F2 RPAT "AUX" FST TL)
+ #DECL ((F1 F2) <OR FORM SEGMENT>)
+ <COND (<OR <EMPTY? <SET F1 <CHTYPE .F1 FORM>>>
+ <EMPTY? <SET F2 <CHTYPE .F2 FORM>>>>
+ #FALSE (EMPTY-FORM-IN-DECL!-ERRORS))>
+ <SET FST
+ <COND (<TYPE? .RPAT ATOM>
+ <COND (<TYPE? <1 .F2> ATOM> <TYPMAT <1 .F2> .RPAT>)
+ (<TYPE? <1 .F2> FORM> <ACTORT <1 .F2> .RPAT>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>)
+ (<TYPE? .RPAT FORM> <ACTORT .RPAT <1 .F2>>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>>
+ <COND
+ (<NOT .FST> .FST)
+ (ELSE
+ <COND (<CTMATCH .RPAT ,ALLWORDS <> <> <>>
+ <COND (<AND <LENGTH? .F2 2> <TYPE? <2 .F2> LIST>>
+ <COND (<CTMATCH <1 .F2> ,ALLWORDS <> <><>>
+ <COND (.ORF
+ <SET TL <MAP-MERGE !<2 .F1> !<2 .F2>>>
+ <COND (<EMPTY? .TL> .FST)
+ (ELSE <FORM .FST .TL>)>)
+ (<SET TL <AND-MERGE <2 .F1> <2 .F2>>>
+ <FORM .FST .TL>)>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>)
+ (ELSE <COND (.ORF <ORSORT <FORM OR .F1 .F2>>) (ELSE <>)>)>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>)>>
+
+<DEFINE MAP-MERGE ("TUPLE" PAIRS "AUX" (HIGH <2 .PAIRS>) (LOW <1 .PAIRS>))
+ #DECL ((PAIRS) <TUPLE [REST FIX]> (HIGH LOW) FIX)
+ <REPEAT ()
+ <COND (<EMPTY? <SET PAIRS <REST .PAIRS 2>>> <RETURN>)>
+ <SET HIGH <MAX .HIGH <2 .PAIRS>>>
+ <SET LOW <MIN .LOW <1 .PAIRS>>>>
+ <COND (<AND <==? .HIGH <CHTYPE <MIN> FIX>>
+ <==? .LOW <CHTYPE <MAX> FIX>>>
+ ())
+ (ELSE (.LOW .HIGH))>>
+
+
+<DEFINE AND-MERGE (L1 L2 "AUX" (FLG <>) HIGH LOW TEM (L (0)) (LL .L))
+ #DECL ((L LL L1 L2) <LIST [REST FIX]> (HIGH LOW) FIX)
+ <COND (<G? <LENGTH .L1> <LENGTH .L2>>
+ <SET TEM .L1>
+ <SET L1 .L2>
+ <SET L2 .TEM>)>
+ <REPEAT ()
+ <SET LOW <1 .L2>>
+ <SET HIGH <2 .L2>>
+ <REPEAT ((L1 .L1) LO HI)
+ #DECL ((L1) <LIST [REST FIX]> (LO HI) FIX)
+ <COND (<EMPTY? .L1> <RETURN>)>
+ <SET HI <2 .L1>>
+ <COND (<OR <AND <G=? <SET LO <1 .L1>> .LOW>
+ <L=? .LO .HIGH>>
+ <AND <L=? .HI .HIGH> <G=? .HI .LOW>>
+ <AND <G=? .LOW .LO> <L=? .LOW .HI>>
+ <AND <L=? .HIGH .HI> <G=? .HIGH .LO>>>
+ <SET LOW <MAX .LOW .LO>>
+ <SET HIGH <MIN .HIGH .HI>>
+ <SET L <REST <PUTREST .L (.LOW .HIGH)> 2>>
+ <SET FLG T>
+ <RETURN>)>
+ <SET L1 <REST .L1 2>>>
+ <COND (<EMPTY? <SET L2 <REST .L2 2>>>
+ <RETURN <COND (.FLG <REST .LL>) (ELSE <>)>>)>>>
+
+"\f"
+
+<DEFINE GET-RANGE (L1 "AUX" TT)
+ <COND (<AND <TYPE? .L1 FORM>
+ <TMATCH .L1 ,ALLWORDS>
+ <TYPE? <2 .L1> LIST>>
+ <COND (<NOT <EMPTY? <SET TT <MAP-MERGE !<2 .L1>>>>> .TT)>)>>
+
+"\f"
+
+<DEFINE ELETYPE (F1 F2 RTYP
+ "AUX" (S1 <VECTOR .F1 <> 0 <> <> '[]>) (FAIL <>) (INOPT <>)
+ (S2 <VECTOR .F2 <> 0 <> <> '[]>) (FL ()) (FP '<>) FSTL
+ SEGF RTEM)
+ #DECL ((S1 S2) <VECTOR <PRIMTYPE LIST> ANY FIX ANY ANY ANY>
+ (F1 F2) <PRIMTYPE LIST> (FP) <OR FORM SEGMENT> (FL) LIST)
+ <SET SEGF <SEGANDOR .F1 .F2 .ORF>>
+ <COND
+ (<OR <EMPTY? .F1> <EMPTY? .F2>> #FALSE (EMPTY-FORM-IN-DECL!-ERRORS))
+ (<AND .ANDF .ORF <NOT <TMATCH <1 .F2> .RTYP>>> <ORSORT <FORM OR .F1 .F2>>)
+ (ELSE
+ <COND
+ (<SET FSTL
+ <COND (<TYPE? .RTYP ATOM>
+ <COND (<TYPE? <1 .F2> ATOM> <TYPMAT .RTYP <1 .F2>>)
+ (<TYPE? <1 .F2> FORM> <ACTORT <1 .F2> .RTYP>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>)
+ (<TYPE? .RTYP FORM> <ACTORT .RTYP <1 .F2>>)
+ (ELSE #FALSE (BAD-SYNTAX!-ERRORS))>>
+ <COND (.ANDF
+ <SET FL
+ <CHTYPE <SET FP
+ <COND (.SEGF <CHTYPE (.FSTL) SEGMENT>)
+ (ELSE <FORM .FSTL>)>>
+ LIST>>)>
+ <PUT .S1 ,DECL-RESTED <REST .F1>>
+ <PUT .S2 ,DECL-RESTED <REST .F2>>
+ <REPEAT ((TEM1 <>) (TEM2 <>) T1 T2 TEM TT)
+ #DECL ((TT) <VECTOR FIX ANY>)
+ <SET T1 <SET T2 <>>>
+ <COND
+ (<AND <OR <AND <SET TEM1 <NEXTP .S1>> <SET T1 <DECL-ELEMENT .S1>>>
+ <AND <EMPTY? .TEM1> <SET T1 ANY>>>
+ <OR <AND <SET TEM2 <NEXTP .S2>> <SET T2 <DECL-ELEMENT .S2>>>
+ <AND .TEM1 <EMPTY? .TEM2> <SET T2 ANY>>>>
+ <COND (<AND .ORF <OR <NOT .TEM1> <NOT .TEM2>>>
+ <RETURN <COND (<LENGTH? .FP 1> <1 .FP>) (ELSE .FP)>>)>
+ <OR <SET RTEM
+ <SET TEM
+ <COND (<NOT .TEM1>
+ <COND (<OR <TYPE? .F1 FORM> <DECL-IN-REST .S2>>
+ .T2)
+ (ELSE <SET FAIL T> <>)>)
+ (<NOT .TEM2>
+ <COND (<OR <TYPE? .F2 FORM> <DECL-IN-REST .S1>>
+ .T1)
+ (ELSE <SET FAIL T> <>)>)
+ (ELSE <DTMATCH .T1 .T2>)>>>
+ <COND (.ORF <SET TEM <ORSORT <FORM OR .T1 .T2>>>)
+ (.MAYBEF <COND (.FAIL <RETURN <>>) (ELSE <SET FAIL T>)>)
+ (ELSE <RETURN <>>)>>
+ <COND (<AND <NOT .INOPT>
+ <OR <AND .ORF
+ <OR <DECL-IN-COUNT-VEC .S1>
+ <DECL-IN-COUNT-VEC .S2>>>
+ <AND .ANDF
+ <NOT .ORF>
+ <DECL-IN-COUNT-VEC .S1>
+ <DECL-IN-COUNT-VEC .S2>>>>
+ <SET INOPT <COND (.ANDF (OPTIONAL .TEM)) (ELSE ())>>)
+ (<AND .INOPT .ANDF>
+ <PUTREST <REST .INOPT <- <LENGTH .INOPT> 1>> (.TEM)>)>
+ <COND (<AND .INOPT
+ <OR <AND .ORF
+ <OR <0? <DECL-ITEM-COUNT .S1>>
+ <0? <DECL-ITEM-COUNT .S2>>>>
+ <AND .ANDF
+ <0? <DECL-ITEM-COUNT .S1>>
+ <0? <DECL-ITEM-COUNT .S2>>>>>
+ <AND .ANDF <SET TEM [!.INOPT]>>
+ <SET INOPT <>>)>
+ <COND
+ (<OR <AND .ORF
+ <OR <AND <DECL-IN-REST .S1> <EMPTY? <DECL-RESTED .S2>>>
+ <AND <DECL-IN-REST .S2> <EMPTY? <DECL-RESTED .S1>>>>>
+ <AND <OR <DECL-IN-REST .S1>
+ <AND .ANDF <OR <NOT .TEM1> <DECL-IN-COUNT-VEC .S1>>>>
+ <OR <DECL-IN-REST .S2>
+ <AND .ANDF
+ <OR <NOT .TEM2> <DECL-IN-COUNT-VEC .S2>>>>>>
+ <COND
+ (<OR .ORF .ANDF>
+ <COND (<N==? 0
+ <SET T1
+ <RESTER? .S1
+ .S2
+ .FL
+ .RTEM
+ <TYPE? .F2 SEGMENT>>>>
+ <COND (<==? .T1 T>
+ <RETURN <COND (<LENGTH? .FP 1> <1 .FP>)
+ (ELSE .FP)>>)
+ (ELSE
+ <RETURN <COND (<AND <TYPE? .T1 FORM SEGMENT>
+ <LENGTH? .FP 1>>
+ <1 .T1>)
+ (ELSE .T1)>>)>)
+ (<N==? 0
+ <SET T1
+ <RESTER? .S2
+ .S1
+ .FL
+ .RTEM
+ <TYPE? .F1 SEGMENT>>>>
+ <COND (<==? .T1 T>
+ <RETURN <COND (<LENGTH? .FP 1> <1 .FP>)
+ (ELSE .FP)>>)
+ (ELSE
+ <RETURN <COND (<AND <TYPE? .T1 FORM SEGMENT>
+ <LENGTH? .FP 1>>
+ <1 .T1>)
+ (ELSE .T1)>>)>)>)
+ (ELSE <RETURN T>)>)
+ (<AND <NOT .ANDF>
+ <OR <DECL-IN-REST .S1> <NOT .TEM1>>
+ <OR <DECL-IN-REST .S2> <NOT .TEM2>>>
+ <RETURN T>)>
+ <COND (<AND <NOT .INOPT>
+ .ANDF
+ <OR <NOT .ORF>
+ <NOT <OR <DECL-IN-REST .S1> <DECL-IN-REST .S2>>>>>
+ <COND (<AND <TYPE? <1 .FL> VECTOR>
+ <=? <2 <SET TT <1 .FL>>> .TEM>>
+ <PUT .TT 1 <+ <1 .TT> 1>>)
+ (<AND <N==? <CHTYPE .FP LIST> .FL> <=? .TEM <1 .FL>>>
+ <PUT .FL 1 [2 .TEM]>)
+ (ELSE <SET FL <REST <PUTREST .FL (.TEM)>>>)>)>)
+ (ELSE
+ <COND (<AND <EMPTY? .TEM1> <EMPTY? <SET TEM1 .TEM2>>>
+ <COND (.ANDF
+ <RETURN <COND (<LENGTH? .FP 1> <1 .FP>) (ELSE .FP)>>)
+ (ELSE <RETURN T>)>)
+ (ELSE <RETURN .TEM1>)>)>>)>)>>
+
+"\f"
+
+<DEFINE RESTER? (S1 S2 FL FST SEGF
+ "AUX" (TT <DECL-REST-VEC .S1>) (TEM1 T) (TEM2 T) (OPTIT <>))
+ #DECL ((S1 S2) <VECTOR ANY ANY ANY ANY ANY VECTOR> (FL) <LIST ANY>
+ (TT) VECTOR)
+ <COND (<AND <OR .ORF <DECL-IN-COUNT-VEC .S2>>
+ <EMPTY? <DECL-RESTED .S2>> <NOT <DECL-IN-REST .S2>>>
+ <SET OPTIT T>)>
+ <COND
+ (<AND .SEGF <NOT .ORF> <OR <NOT <DECL-IN-REST .S1>>
+ <NOT <DECL-IN-REST .S2>>>> T)
+ (<AND <NOT <EMPTY? .TT>>
+ <OR <NOT <DECL-IN-REST .S2>> <G=? <LENGTH .TT>
+ <LENGTH <REST <TOP <DECL-REST-VEC .S2>>>>>>>
+ <SET TT <REST <TOP .TT>>>
+ <MAPR <>
+ <FUNCTION (SO "AUX" T1)
+ #DECL ((SO) <VECTOR ANY>)
+ <SET T1
+ <OR <AND <SET TEM1 <NEXTP .S2>> <DECL-ELEMENT .S2>>
+ <AND <EMPTY? .TEM1>
+ <COND (.ORF <MAPLEAVE>) (ELSE ANY)>>>>
+ <AND <OR .ORF <DECL-IN-COUNT-VEC .S2>>
+ <EMPTY? <DECL-RESTED .S2>>
+ <NOT <DECL-IN-REST .S2>>
+ <SET OPTIT T>>
+ <COND (<NOT .TEM1> <AND <EMPTY? .TEM1> <SET TEM1 T>>)>
+ <COND (.T1
+ <PUT .SO
+ 1
+ <SET TEM2
+ <DTMATCH <AND <NEXTP .S1>
+ <DECL-ELEMENT .S1>> .T1>>>)>
+ <AND <OR <NOT .T1> <NOT .TEM2>> <MAPLEAVE>>>
+ <REST <SET TT [REST .FST !<REST .TT>]> 2>>
+ <COND (.OPTIT <PUT .TT 1 OPTIONAL>)
+ (ELSE <SET TT <UNIQUE-VECTOR-CHECK .TT>>)>
+ <COND (<AND .TEM1 .TEM2> <PUTREST .FL (.TT)> T)
+ (<AND <NOT .TEM1> <NOT <EMPTY? .TEM1>>> .TEM1)
+ (ELSE .TEM2)>)
+ (ELSE 0)>>
+
+<DEFINE UNIQUE-VECTOR-CHECK (V "AUX" (FRST <2 .V>))
+ #DECL ((V) <VECTOR [2 ANY]>)
+ <COND (<MAPF <>
+ <FUNCTION (X) <COND (<N=? .X .FRST> <MAPLEAVE .V>)>>
+ <REST .V 2>>)
+ (ELSE [REST .FRST])>>
+
+
+<DEFINE NEXTP (S "AUX" TEM TT N)
+ #DECL ((S) <VECTOR <PRIMTYPE LIST> ANY FIX ANY ANY ANY> (N) FIX
+ (TT) VECTOR)
+ <COND (<0? <DECL-ITEM-COUNT .S>> <PUT .S ,DECL-IN-COUNT-VEC <>>)>
+ <COND (<DECL-IN-REST .S> <NTHREST .S>)
+ (<NOT <0? <DECL-ITEM-COUNT .S>>>
+ <PUT .S ,DECL-ITEM-COUNT <- <DECL-ITEM-COUNT .S> 1>>
+ <NTHREST .S>)
+ (<EMPTY? <SET TEM <DECL-RESTED .S>>> <>)
+ (<TYPE? <1 .TEM> ATOM FORM SEGMENT>
+ <SET TEM <1 .TEM>>
+ <PUT .S ,DECL-RESTED <REST <DECL-RESTED .S>>>
+ <PUT .S ,DECL-ELEMENT .TEM>)
+ (<TYPE? <1 .TEM> VECTOR>
+ <SET TT <1 .TEM>>
+ <PUT .S ,DECL-RESTED <REST <DECL-RESTED .S>>>
+ <PUT .S ,DECL-REST-VEC <REST .TT>>
+ <COND (<G? <LENGTH .TT> 1>
+ <COND (<==? <1 .TT> REST>
+ <COND (<AND <==? <LENGTH .TT> 2>
+ <==? <2 .TT> ANY>>
+ <>)
+ (ELSE
+ <PUT .S ,DECL-IN-REST T>
+ <PUT .S
+ ,DECL-ELEMENT
+ <DECL-ELEMENT .TT>>)>)
+ (<OR <AND <TYPE? <1 .TT> FIX> <SET N <1 .TT>>>
+ <AND <MEMQ <1 .TT> '![OPT OPTIONAL!]>
+ <SET N 1>>>
+ <OR <TYPE? <1 .TT> FIX>
+ <PUT .S ,DECL-IN-COUNT-VEC T>>
+ <PUT .S
+ ,DECL-ITEM-COUNT
+ <- <* .N <- <LENGTH .TT> 1>> 1>>
+ <PUT .S ,DECL-ELEMENT <2 .TT>>
+ <COND (<L=? .N 0> <>) (ELSE .S)>)
+ (#FALSE (BAD-VECTOR-SYNTAX!-ERRORS))>)
+ (ELSE #FALSE (BAD-FORM-SYNTAX!-ERRORS))>)
+ (ELSE #FALSE (BAD-FORM-SYNTAX!-ERRORS))>>
+
+"\f"
+
+<DEFINE NTHREST (S "AUX" (TEM <REST <DECL-REST-VEC .S>>))
+ #DECL ((S) <VECTOR ANY ANY ANY ANY ANY VECTOR> (TEM) VECTOR)
+ <COND (<EMPTY? .TEM> <SET TEM <REST <TOP .TEM>>>)>
+ <PUT .S ,DECL-REST-VEC .TEM>
+ <PUT .S ,DECL-ELEMENT <1 .TEM>>>
+"\f"
+
+<DEFINE GET-ELE-TYPE (DCL2 NN
+ "OPTIONAL" (RST <>) (PT <>)
+ "AUX" (LN 0) (CNT 0) ITYP DC SDC DCL (N 0) DC1 (QOK <>)
+ (FMOK <>) STRU (GD '<>) (GP ()) (K 0) (DCL1 .DCL2)
+ (SEGF <>) TEM)
+ #DECL ((LN CNT K N) FIX (DCL) <PRIMTYPE LIST> (SDC DC) VECTOR
+ (GD) <OR FORM SEGMENT> (GP) LIST)
+ <PROG ()
+ <COND (<AND .PT <SET TEM <ISTYPE? .DCL1>>>
+ <SET PT <TYPE-AND <GET-ELE-TYPE .TEM .NN> .PT>>)>
+ <AND <TYPE? .DCL1 ATOM> <SET DCL1 <GET .DCL1 DECL '.DCL1>>>
+ <COND (<TYPE? .DCL1 SEGMENT> <SET SEGF T>)>
+ <COND (<==? <STRUCTYP .DCL2> BYTES>
+ <RETURN <GET-ELE-BYTE .DCL2 .NN .RST .PT>>)>
+ <COND (.RST <SET STRU <COND (<STRUCTYP .DCL1>) (ELSE STRUCTURED)>>)
+ (.PT
+ <SET STRU
+ <COND (<ISTYPE? .DCL2>)
+ (<SET STRU <STRUCTYP .DCL1>> <FORM PRIMTYPE .STRU>)
+ (ELSE STRUCTURED)>>)>
+ <COND
+ (<AND <TYPE? .DCL1 FORM SEGMENT>
+ <SET DCL .DCL1>
+ <G? <SET LN <LENGTH .DCL>> 1>
+ <NOT <SET FMOK <MEMQ <1 .DCL> '![OR AND NOT!]>>>
+ <NOT <SET QOK <==? <1 .DCL> QUOTE>>>
+ <NOT <==? <1 .DCL> PRIMTYPE>>>
+ <COND
+ (<==? .NN ALL>
+ <AND .PT <SET GP <CHTYPE <SET GD <FOSE .SEGF .STRU>> LIST>>>
+ <OR
+ <AND <TYPE? <SET DC1 <2 .DCL>> VECTOR>
+ <SET DC .DC1>
+ <G=? <LENGTH .DC> 2>
+ <==? <1 .DC> REST>
+ <COND (<==? <LENGTH .DC> 2>
+ <COND (.RST <FORM .STRU [REST <2 .DC>]>)
+ (.PT <FORM .STRU [REST <TYPE-MERGE <2 .DC> .PT>]>)
+ (ELSE <2 .DC>)>)
+ (.RST <FORM .STRU [REST <TYPE-MERGE !<REST .DC>>]>)
+ (.PT
+ <FORM .STRU
+ [REST
+ <MAPF ,TYPE-MERGE
+ <FUNCTION (D) <TYPE-MERGE .D .PT>>
+ <REST .DC>>]>)
+ (ELSE <TYPE-MERGE !<REST .DC>>)>>
+ <REPEAT (TT (CK <DCX <SET TT <2 .DCL>>>) (D .DCL) TEM)
+ #DECL ((D) <PRIMTYPE LIST>)
+ <COND (<EMPTY? <SET D <REST .D>>>
+ <SET TEM
+ <OR .SEGF
+ <AND <TYPE? .TT VECTOR> <==? <1 .TT> REST>>>>
+ <RETURN <COND (.TEM
+ <COND (.RST <FORM .STRU [REST .CK]>)
+ (.PT .GD)
+ (ELSE .CK)>)
+ (.PT .GD)
+ (.RST .STRU)
+ (ELSE ANY)>>)>
+ <SET CK <TYPE-MERGE .CK <DCX <SET TT <1 .D>>>>>
+ <AND .PT
+ <SET GP
+ <REST
+ <PUTREST .GP
+ (<COND (<TYPE? .TT VECTOR>
+ [<1 .TT>
+ !<MAPF ,LIST
+ <FUNCTION (X)
+ <TYPE-MERGE .X .PT>>
+ <REST .TT>>])
+ (ELSE
+ <TYPE-MERGE .PT .TT>)>)>>>>>>)
+ (ELSE
+ <SET N .NN>
+ <AND .PT <SET GP <CHTYPE <SET GD <FOSE .SEGF .STRU>> LIST>>>
+ <AND .RST <SET N <+ .N 1>>>
+ <COND (<EMPTY? <SET DCL <REST .DCL>>>
+ <RETURN <COND (.RST .STRU)
+ (.PT <FOSE .SEGF .STRU !<ANY-PAT <- .N 1>> .PT>)
+ (ELSE ANY)>>)>
+ <REPEAT ()
+ <COND
+ (<NOT <0? .CNT>>
+ <COND
+ (<EMPTY? <SET SDC <REST .SDC>>>
+ <SET SDC <REST .DC>>
+ <AND
+ <0? <SET CNT <- .CNT 1>>>
+ <COND (<EMPTY? <SET DCL <REST .DCL>>>
+ <RETURN <COND (.RST .STRU)
+ (.PT
+ <PUTREST .GP (!<ANY-PAT <- .N 1>> .PT)>
+ .GD)
+ (ELSE ANY)>>)
+ (ELSE <AGAIN>)>>)>
+ <SET ITYP <1 .SDC>>)
+ (<TYPE? <1 .DCL> ATOM FORM SEGMENT>
+ <SET ITYP <1 .DCL>>
+ <SET DCL <REST .DCL>>)
+ (<TYPE? <SET DC1 <1 .DCL>> VECTOR>
+ <SET DC .DC1>
+ <COND
+ (<==? <1 .DC> REST>
+ <AND <OR <AND .RST <NOT <1? .N>>> .PT>
+ <==? 2 <LENGTH .DC>>
+ <=? <2 .DC> '<NOT ANY>>
+ <RETURN <>>>
+ <SET K <MOD <- .N 1> <- <LENGTH .DC> 1>>>
+ <SET N </ <- .N 1> <- <LENGTH .DC> 1>>>
+ <RETURN
+ <COND
+ (.RST
+ <FOSE .SEGF
+ .STRU
+ <COND (<0? .K> .DC)
+ (ELSE [REST <TYPE-MERGE !<REST .DC>>])>>)
+ (.PT
+ <PUTREST
+ .GP
+ (!<COND (<L=? .N 0> ())
+ (<1? .N> (!<REST .DC>))
+ (ELSE ([.N !<REST .DC>]))>
+ !<MAPF ,LIST
+ <FUNCTION (O)
+ <COND (<==? <SET K <- .K 1>> -1> .PT)
+ (ELSE .O)>>
+ <REST .DC>>
+ .DC)>
+ .GD)
+ (ELSE <NTH .DC <+ .K 2>>)>>)
+ (<OR <TYPE? <1 .DC> FIX> <==? <1 .DC> OPT> <==? <1 .DC> OPTIONAL>>
+ <SET CNT <COND (<TYPE? <1 .DC> FIX> <1 .DC>) (ELSE 1)>>
+ <SET SDC .DC>
+ <AGAIN>)>)>
+ <AND
+ <0? <SET N <- .N 1>>>
+ <RETURN
+ <COND
+ (.RST
+ <COND (<AND <EMPTY? .DCL> <0? .CNT>> .STRU)
+ (<FOSE .SEGF
+ .STRU
+ !<COND (<0? .CNT> (.ITYP !.DCL))
+ (<N==? .SDC <REST .DC>>
+ <COND (<0? <SET CNT <- .CNT 1>>>
+ (!.SDC !<REST .DCL>))
+ (ELSE
+ (!.SDC
+ [.CNT !<REST .DC>]
+ !<REST .DCL>))>)
+ (ELSE ([.CNT !.SDC] !<REST .DCL>))>>)>)
+ (.PT
+ <SET GP <REST <PUTREST .GP (.PT)>>>
+ <AND <ASSIGNED? SDC> <SET SDC <REST .SDC>>>
+ <COND (<AND <EMPTY? .DCL> <0? .CNT>> .GD)
+ (<PUTREST .GP
+ <COND (<OR <0? .CNT>
+ <AND <1? .CNT> <==? .SDC <REST .DC>>>>
+ .DCL)
+ (<==? .SDC <REST .DC>>
+ ([.CNT !<REST .DC>] !<REST .DCL>))
+ (<L=? <SET CNT <- .CNT 1>> 0>
+ (!.SDC !<REST .DCL>))
+ (ELSE
+ (!.SDC
+ [.CNT !<REST .DC>]
+ !<REST .DCL>))>>
+ .GD)>)
+ (ELSE .ITYP)>>>
+ <AND <OR .PT .RST> <=? .ITYP '<NOT ANY>> <RETURN <>>>
+ <AND .PT <SET GP <REST <PUTREST .GP (.ITYP)>>>>
+ <COND (<EMPTY? .DCL>
+ <RETURN <COND (.RST .STRU)
+ (.PT
+ <PUTREST .GP (!<ANY-PAT <- .N 1>> .PT)>
+ .GD)
+ (ELSE ANY)>>)>>)>)
+ (.QOK <SET DCL1 <GEN-DECL <2 .DCL>>> <AGAIN>)
+ (<AND .FMOK <==? <1 .FMOK> OR>>
+ <MAPF ,TYPE-MERGE
+ <FUNCTION (D "AUX" IT)
+ <COND (<SET IT <GET-ELE-TYPE .D .NN .RST .PT>>
+ <AND <==? .IT ANY> <MAPLEAVE ANY>>
+ .IT)
+ (ELSE <MAPRET>)>>
+ <REST .DCL>>)
+ (<AND .FMOK <==? <1 .FMOK> AND>>
+ <SET ITYP ANY>
+ <MAPF <>
+ <FUNCTION (D)
+ <SET ITYP <TYPE-OK? .ITYP <GET-ELE-TYPE .D .NN .RST>>>>
+ <REST .DCL>>
+ .ITYP)
+ (.RST <COND (<STRUCTYP .DCL1>) (ELSE STRUCTURED)>)
+ (.PT
+ <COND (<==? .NN ALL> .DCL1)
+ (ELSE <FOSE .SEGF .DCL1 !<ANY-PAT <- .NN 1>> .PT>)>)
+ (ELSE ANY)>>>
+
+"\f"
+
+<DEFINE GET-ELE-BYTE (DCL N RST PT "AUX" SIZ)
+ #DECL ((N) <OR ATOM FIX>)
+ <COND (.PT
+ <COND (<==? .N ALL> .DCL)
+ (<TYPE-AND .DCL <FORM STRUCTURED [.N FIX] [REST FIX]>>)>)
+ (.RST
+ <COND (<==? .N ALL> <SET N <MINL .DCL>>)
+ (<G? .N <MINL .DCL>> <SET N 0>)
+ (ELSE <SET N <- <MINL .DCL> .N>>)>
+ <COND (<SET SIZ <GETBSYZ .DCL>> <FORM BYTES .SIZ .N>)
+ (ELSE BYTES)>)
+ (ELSE FIX)>>
+
+<DEFINE GETBSYZ (DCL "AUX" TEM)
+ <COND (<==? <SET TEM <STRUCTYP .DCL>> STRING> 7)
+ (<AND <==? .TEM BYTES> <TYPE? .DCL FORM SEGMENT> <G=? <LENGTH .DCL> 2>
+ <TYPE? <SET TEM <2 .DCL>> FIX>>
+ .TEM)>>
+
+<DEFINE MINL (DCL "AUX" (N 0) DD D DC (LN 0) (QOK <>) (ANDOK <>) TT (OROK <>))
+ #DECL ((N VALUE LN) FIX (DC) <PRIMTYPE LIST> (D) VECTOR)
+ <AND <TYPE? .DCL ATOM> <SET DCL <GET .DCL DECL '.DCL>>>
+ <COND
+ (<AND <TYPE? .DCL FORM SEGMENT>
+ <SET DC .DCL>
+ <G? <LENGTH .DC> 1>
+ <N==? <SET TT <1 .DC>> PRIMTYPE>
+ <NOT <SET OROK <==? .TT OR>>>
+ <NOT <SET QOK <==? .TT QUOTE>>>
+ <NOT <SET ANDOK <==? .TT AND>>>
+ <N==? .TT NOT>>
+ <SET DC <REST .DC>>
+ <COND (<AND <NOT <EMPTY? .DC>> <TYPE? <1 .DC> FIX>>
+ <OR <TMATCH .TT '<PRIMTYPE BYTES>>
+ <MESSAGE ERROR "BAD-DECL-SYNTAX" .DCL>>
+ <COND (<AND <==? <LENGTH .DC> 2> <TYPE? <2 .DC> FIX>>
+ <2 .DC>)
+ (ELSE 0)>)
+ (ELSE
+ <REPEAT ()
+ #DECL ((VALUE) FIX)
+ <COND (<AND <TYPE? <SET DD <1 .DC>> VECTOR>
+ <SET D .DD>
+ <G? <LENGTH .D> 1>>
+ <COND (<MEMQ <1 .D> '[REST OPT OPTIONAL]> <RETURN .N>)
+ (<TYPE? <1 .D> FIX>
+ <SET LN <1 .D>>
+ <SET N <+ .N <* .LN <- <LENGTH .D> 1>>>>)
+ (ELSE <MESSAGE ERROR "BAD DECL " .DCL>)>)
+ (<TYPE? .DD ATOM FORM SEGMENT> <SET N <+ .N 1>>)
+ (ELSE <MESSAGE ERROR "BAD DECL " .DCL>)>
+ <AND <EMPTY? <SET DC <REST .DC>>> <RETURN .N>>>)>)
+ (<OR .OROK .ANDOK> <CHTYPE <MAPF <COND (.OROK ,MIN) (ELSE ,MAX)> ,MINL <REST .DC>>
+ FIX>)
+ (.QOK <COND (<STRUCTURED? <2 .DC>> <LENGTH <2 .DC>>) (ELSE 0)>)
+ (<TYPE? .DCL ATOM FALSE FORM SEGMENT> 0)
+ (ELSE <MESSAGE "BAD DECL " .DCL>)>>
+
+<DEFINE STRUCTYP (DCL)
+ <SET DCL <TYPE-AND .DCL STRUCTURED>>
+ <COND (<TYPE? .DCL ATOM>
+ <AND <VALID-TYPE? .DCL> <TYPEPRIM .DCL>>)
+ (<TYPE? .DCL FORM SEGMENT>
+ <COND (<PRIMHK .DCL T>)
+ (<TYPE? <1 .DCL> FORM> <PRIMHK <1 .DCL> <>>)>)>>
+
+<DEFINE PRIMHK (FRM FLG "AUX" TEM (LN <LENGTH .FRM>))
+ #DECL ((FRM) <OR FORM SEGMENT> (LN) FIX)
+ <COND (<AND <==? .LN 2>
+ <COND (<==? <SET TEM <1 .FRM>> PRIMTYPE>
+ <AND <TYPE? <SET TEM <2 .FRM>> ATOM>
+ <VALID-TYPE? .TEM>
+ <STRUCTYP <2 .FRM>>>)
+ (<==? .TEM QUOTE> <PRIMTYPE <2 .FRM>>)
+ (<==? .TEM NOT> <>)>>)
+ (<NOT <0? .LN>>
+ <COND (<==? <SET TEM <1 .FRM>> OR>
+ <SET TEM NO-RETURN>
+ <MAPF <>
+ <FUNCTION (D)
+ <SET TEM <TYPE-MERGE <STRUCTYP .D> .TEM>>> <REST .FRM>>
+ <COND (<AND <TYPE? .TEM ATOM> <VALID-TYPE? .TEM>> .TEM)>)
+ (<==? .TEM AND>
+ <MAPF <>
+ <FUNCTION (D)
+ <COND (<SET TEM <STRUCTYP .D>> <MAPLEAVE>)>>
+ <REST .FRM>>
+ .TEM)
+ (<AND <TYPE? .TEM ATOM> <VALID-TYPE? .TEM>>
+ <TYPEPRIM .TEM>)>)>>
+
+"\f"
+
+<DEFINE TYPESAME (T1 T2)
+ <AND <SET T1 <ISTYPE? .T1>>
+ <==? .T1 <ISTYPE? .T2>>>>
+
+<DEFINE ISTYPE-GOOD? (TYP "OPTIONAL" (STRICT <>))
+ <AND <SET TYP <ISTYPE? .TYP .STRICT>>
+ <NOT <MEMQ <TYPEPRIM .TYP> '![BYTES STRING LOCD TUPLE FRAME!]>>
+ .TYP>>
+
+<DEFINE TOP-TYPE (TYP "AUX" TT)
+ <COND (<AND <TYPE? .TYP ATOM> <NOT <VALID-TYPE? .TYP>>
+ <NOT <MEMQ .TYP '![STRUCTURED APPLICABLE ANY LOCATIVE]>>>
+ <SET TYP <GET .TYP DECL '.TYP>>)>
+ <COND (<TYPE? .TYP ATOM> .TYP)
+ (<AND <TYPE? .TYP FORM SEGMENT> <NOT <LENGTH? .TYP 1>>>
+ <COND (<==? <SET TT <1 .TYP>> OR>
+ <MAPF ,TYPE-MERGE ,TOP-TYPE <REST .TYP>>)
+ (<==? .TT NOT> ANY)
+ (<==? .TT QUOTE> <TYPE <2 .TYP>>)
+ (<==? .TT PRIMTYPE> .TYP)
+ (ELSE .TT)>)>>
+
+<DEFINE ISTYPE? (TYP "OPTIONAL" (STRICT <>) "AUX" TY)
+ <PROG ()
+ <OR .STRICT <TYPE? .TYP ATOM> <SET TYP <TYPE-AND .TYP '<NOT
+ UNBOUND>>>>
+ <COND
+ (<TYPE? .TYP FORM SEGMENT>
+ <COND (<AND <==? <LENGTH .TYP> 2> <==? <1 .TYP> QUOTE>>
+ <SET TYP <TYPE <2 .TYP>>>)
+ (<==? <1 .TYP> OR>
+ <SET TYP <ISTYPE? <2 <SET TY .TYP>>>>
+ <MAPF <>
+ <FUNCTION (Z)
+ <COND (<N==? .TYP <ISTYPE? .Z>>
+ <MAPLEAVE <SET TYP <>>>)>>
+ <REST .TY 2>>)
+ (ELSE <SET TYP <1 .TYP>>)>)>
+ <AND <TYPE? .TYP ATOM>
+ <COND (<VALID-TYPE? .TYP> .TYP)
+ (<SET TYP <GET .TYP DECL>> <AGAIN>)>>>>
+
+
+<DEFINE DCX (IT "AUX" TT LN)
+ #DECL ((TT) VECTOR (LN) FIX)
+ <COND (<AND <TYPE? .IT VECTOR>
+ <G=? <SET LN <LENGTH <SET TT .IT>>> 2>
+ <COND (<==? .LN 2> <2 .TT>)
+ (ELSE <TYPE-MERGE !<REST .TT>>)>>)
+ (ELSE .IT)>>
+
+"DETERMINE IF A TYPE PATTERN REQUIRES DEFERMENT 0=> NO 1=> YES 2=> DONT KNOW "
+
+"\f"
+
+<DEFINE DEFERN (PAT "AUX" STATE TEM)
+ #DECL ((STATE) FIX)
+ <PROG ()
+ <COND
+ (<TYPE? .PAT ATOM>
+ <COND (<VALID-TYPE? .PAT>
+ <COND (<MEMQ <SET PAT <TYPEPRIM .PAT>>
+ '![STRING TUPLE LOCD FRAME BYTES!]>
+ 1)
+ (ELSE 0)>)
+ (<SET PAT <GET .PAT DECL>> <AGAIN>)
+ (ELSE 2)>)
+ (<AND <TYPE? .PAT FORM SEGMENT> <NOT <EMPTY? .PAT>>>
+ <COND (<==? <SET TEM <1 .PAT>> QUOTE> <DEFERN <TYPE <2 .PAT>>>)
+ (<==? .TEM PRIMTYPE> <DEFERN <2 .PAT>>)
+ (<AND <==? .TEM OR> <NOT <EMPTY? <REST .PAT>>>>
+ <SET STATE <DEFERN <2 .PAT>>>
+ <MAPF <>
+ <FUNCTION (P)
+ <OR <==? <DEFERN .P> .STATE> <SET STATE 2>>>
+ <REST .PAT 2>>
+ .STATE)
+ (<==? .TEM NOT> 2)
+ (<==? .TEM AND>
+ <SET STATE 2>
+ <MAPF <>
+ <FUNCTION (P)
+ <COND (<L? <SET STATE <DEFERN .P>> 2>
+ <MAPLEAVE>)>>
+ <REST .PAT>>
+ .STATE)
+ (ELSE <DEFERN <1 .PAT>>)>)
+ (ELSE 2)>>>
+
+" Define a decl for a given quoted object for maximum winnage."
+
+"\f"
+
+<DEFINE GEN-DECL (OBJ)
+ <COND
+ (<OR <MONAD? .OBJ> <APPLICABLE? .OBJ> <TYPE? .OBJ STRING>> <TYPE .OBJ>)
+ (<==? <PRIMTYPE .OBJ> BYTES>
+ <CHTYPE (<TYPE .OBJ> <BYTE-SIZE .OBJ> <LENGTH .OBJ>) SEGMENT>)
+ (ELSE
+ <REPEAT ((DC <GEN-DECL <1 .OBJ>>) (CNT 1)
+ (FRM <CHTYPE (<TYPE .OBJ>) SEGMENT>) (FRME .FRM) TT T1)
+ #DECL ((CNT) FIX (FRME) <<PRIMTYPE LIST> ANY>)
+ <COND (<EMPTY? <SET OBJ <REST .OBJ>>>
+ <COND (<G? .CNT 1>
+ <SET FRME <REST <PUTREST .FRME ([.CNT .DC])>>>)
+ (ELSE <SET FRME <REST <PUTREST .FRME (.DC)>>>)>
+ <RETURN .FRM>)
+ (<AND <=? <SET TT <GEN-DECL <1 .OBJ>>> .DC> .DC>
+ <SET CNT <+ .CNT 1>>)
+ (ELSE
+ <COND (<G? .CNT 1>
+ <SET FRME <REST <PUTREST .FRME ([.CNT .DC])>>>)
+ (ELSE <SET FRME <REST <PUTREST .FRME (.DC)>>>)>
+ <SET DC .TT>
+ <SET CNT 1>)>>)>>
+
+"\f"
+
+<DEFINE REST-DECL (DC N "AUX" TT TEM)
+ #DECL ((N) FIX)
+ <COND
+ (<TYPE? .DC FORM SEGMENT>
+ <COND
+ (<OR <==? <SET TT <1 .DC>> OR> <==? .TT AND>>
+ <SET TT
+ <CHTYPE (.TT
+ !<MAPF ,LIST
+ <FUNCTION (D "AUX" (IT <REST-DECL .D .N>))
+ <COND (<==? .IT ANY>
+ <COND (<==? .TT OR> <MAPLEAVE (ANY)>)
+ (ELSE <MAPRET>)>)
+ (ELSE .IT)>>
+ <REST .DC>>)
+ FORM>>
+ <COND (<EMPTY? <REST .TT>> ANY)
+ (<EMPTY? <REST .TT 2>> <2 .TT>)
+ (ELSE .TT)>)
+ (<==? .TT NOT> ANY)
+ (<==? <STRUCTYP .DC> BYTES>
+ <COND (<==? .TT PRIMTYPE>
+ .DC)
+ (<==? <LENGTH .DC> 2>
+ <CHTYPE (!.DC .N) FORM>)
+ (<FORM .TT <2 .DC> <+ <CHTYPE <3 .DC> FIX> .N>>)>)
+ (<==? .TT PRIMTYPE>
+ <COND (<0? .N> .DC)
+ (ELSE <CHTYPE (.DC !<ANY-PAT .N>) FORM>)>)
+ (ELSE
+ <FOSE <TYPE? .DC SEGMENT> <COND (<SET TEM <STRUCTYP .TT>> <FORM PRIMTYPE .TEM>)
+ (ELSE STRUCTURED)>
+ !<ANY-PAT .N>
+ !<REST .DC>>)>)
+ (<SET TEM <STRUCTYP .DC>>
+ <COND (<OR <0? .N>
+ <==? .TEM BYTES>> <FORM PRIMTYPE .TEM>)
+ (ELSE <CHTYPE (<FORM PRIMTYPE .TEM> !<ANY-PAT .N>) FORM>)>)
+ (ELSE
+ <COND (<0? .N> STRUCTURED)
+ (ELSE <CHTYPE (STRUCTURED !<ANY-PAT .N>) FORM>)>)>>
+
+<DEFINE ANY-PAT (N)
+ #DECL ((N) FIX)
+ <COND (<L=? .N 0> ()) (<1? .N> (ANY)) (ELSE ([.N ANY]))>>
+
+" TYPE-OK? are two type patterns compatible. If the patterns
+ don't parse, send user a message."
+
+<DEFINE TYPE-OK? (P1 P2 "AUX" TEM)
+ <COND (<OR <==? .P1 NO-RETURN> <==? .P2 NO-RETURN>> NO-RETURN)
+ (<SET TEM <TYPE-AND .P1 .P2>> .TEM)
+ (<EMPTY? .TEM> .TEM)
+ (ELSE <MESSAGE ERROR " " <1 .TEM> " " .P1 " " .P2>)>>
+
+" TYPE-ATOM-OK? does an atom's initial value agree with its DECL?"
+
+<DEFINE TYPE-ATOM-OK? (P1 P2 ATM)
+ #DECL ((ATM) ATOM)
+ <OR <TYPE-OK? .P1 .P2>
+ <MESSAGE ERROR "TYPE MISUSE " .ATM>>>
+
+" Merge a group of type specs into an OR."
+
+"\f"
+
+<DEFINE TYPE-MERGE ("TUPLE" TYPS)
+ #DECL ((TYPS) TUPLE (FTYP) FORM (LN) FIX)
+ <COND (<EMPTY? .TYPS> <>)
+ (ELSE
+ <REPEAT ((ORS <1 .TYPS>))
+ <COND (<EMPTY? <SET TYPS <REST .TYPS>>> <RETURN .ORS>)>
+ <SET ORS
+ <COND (<==? <1 .TYPS> NO-RETURN> .ORS)
+ (<==? .ORS NO-RETURN> <1 .TYPS>)
+ (ELSE <TMERGE .ORS <1 .TYPS>>)>>>)>>
+
+<DEFINE PUT-IN (LST ELE)
+ #DECL ((LST) <PRIMTYPE LIST> (VALUE) LIST)
+ <COND (<AND <TYPE? .ELE FORM SEGMENT>
+ <NOT <EMPTY? .ELE>>
+ <==? <1 .ELE> OR>>
+ <SET ELE <LIST !<REST .ELE>>>)
+ (ELSE <SET ELE (.ELE)>)>
+ <SET LST
+ <MAPF ,LIST
+ <FUNCTION (L1 "AUX" TT)
+ <COND (<EMPTY? .ELE> .L1)
+ (<REPEAT ((A .ELE) B)
+ #DECL ((A B) LIST)
+ <COND (<TMATCH <1 .A> .L1>
+ <SET TT <TMERGE <1 .A> .L1>>
+ <COND (<==? .A .ELE> <SET ELE <REST .ELE>>)
+ (ELSE <PUTREST .B <REST .A>>)>
+ <RETURN T>)>
+ <AND <EMPTY? <SET A <REST <SET B .A>>>>
+ <RETURN <>>>>
+ .TT)
+ (ELSE .L1)>>
+ .LST>>
+ <LSORT <COND (<EMPTY? .ELE> .LST)
+ (ELSE <PUTREST <REST .ELE <- <LENGTH .ELE> 1>> .LST> .ELE)>>>
+
+<DEFINE ORSORT (F) #DECL ((F) <FORM ANY ANY>) <PUTREST .F <LSORT <REST .F>>>>
+
+<DEFINE LSORT (L "AUX" (M ()) (B ()) (TMP ()) (IT ()) (N 0) A1 A2)
+ #DECL ((L M B TMP IT VALUE) LIST (N) FIX (CMPRSN) <OR FALSE APPLICABLE>)
+ <PROG ()
+ <COND (<L? <SET N <LENGTH .L>> 2> <RETURN .L>)>
+ <SET B <REST <SET TMP <REST .L <- </ .N 2> 1>>>>>
+ <PUTREST .TMP ()>
+ <SET L <LSORT .L>>
+ <SET B <LSORT .B>>
+ <SET TMP ()>
+ <REPEAT ()
+ <COND (<EMPTY? .L>
+ <COND (<EMPTY? .TMP> <RETURN .B>)
+ (ELSE <PUTREST .TMP .B> <RETURN .M>)>)
+ (<EMPTY? .B>
+ <COND (<EMPTY? .TMP> <RETURN .L>)
+ (ELSE <PUTREST .TMP .L> <RETURN .M>)>)
+ (ELSE
+ <SET A1 <1 .L>>
+ <SET A2 <1 .B>>
+ <COND (<COND (<AND <TYPE? .A1 ATOM> <TYPE? .A2 ATOM>>
+ <L? <STRCOMP .A1 .A2> 0>)
+ (<TYPE? .A1 ATOM> T)
+ (<TYPE? .A2 ATOM> <>)
+ (ELSE <FCOMPARE .A1 .A2>)>
+ <SET L <REST <SET IT .L>>>)
+ (ELSE <SET B <REST <SET IT .B>>>)>
+ <PUTREST .IT ()>
+ <COND (<EMPTY? .M> <SET M <SET TMP .IT>>)
+ (ELSE <SET TMP <REST <PUTREST .TMP .IT>>>)>)>>>>
+"\f"
+
+<DEFINE FCOMPARE (F1 F2 "AUX" (L1 <LENGTH .F1>) (L2 <LENGTH .F2>))
+ #DECL ((F1 F2) <PRIMTYPE LIST> (L1 L2) FIX)
+ <COND (<==? .L1 .L2>
+ <L? <STRCOMP <UNPARSE .F1> <UNPARSE .F2>> 0>)
+ (<L? .L1 .L2>)>>
+
+
+<DEFINE CANONICAL-DECL (D)
+ <SET D <VTS .D>>
+ <COND (<AND <TYPE? .D FORM SEGMENT> <NOT <EMPTY? .D>>>
+ <COND (<==? <1 .D> OR>
+ <ORSORT <FORM OR !<CAN-ELE <REST .D>>>>)
+ (<==? <1 .D> QUOTE> <CANONICAL-DECL <GEN-DECL <2 .D>>>)
+ (ELSE <CAN-ELE .D>)>)
+ (ELSE .D)>>
+
+
+<DEFINE CAN-ELE (L "AUX" (SAME <>) SAMCNT TT TEM)
+ #DECL ((L) <PRIMTYPE LIST> (SAMCNT) FIX)
+ <CHTYPE
+ (<CANONICAL-DECL <1 .L>>
+ !<MAPR ,LIST
+ <FUNCTION (EL "AUX" (ELE <1 .EL>) (LAST <EMPTY? <REST .EL>>))
+ <COND
+ (<TYPE? .ELE VECTOR>
+ <COND
+ (<AND <==? <LENGTH .ELE> 2> <TYPE? <1 .ELE> FIX>>
+ <SET TT <CANONICAL-DECL <2 .ELE>>>
+ <COND (<AND .SAME <=? .SAME .TT>>
+ <SET SAMCNT <+ .SAMCNT <1 .ELE>>>
+ <COND (.LAST [.SAMCNT .TT]) (ELSE <MAPRET>)>)
+ (ELSE
+ <COND (.SAME <SET TEM <GR-RET .SAME .SAMCNT>>)
+ (ELSE <SET TEM <>>)>
+ <SET SAME .TT>
+ <SET SAMCNT <1 .ELE>>
+ <COND (.LAST
+ <COND (.TEM <MAPRET .TEM <GR-RET .TT .SAMCNT>>)
+ (ELSE <GR-RET .TT .SAMCNT>)>)
+ (.TEM)
+ (ELSE <MAPRET>)>)>)
+ (<AND <==? <1 .ELE> REST>
+ <==? <LENGTH .ELE> 2>
+ <==? <2 .ELE> ANY>>
+ <COND (.SAME
+ <SET TEM <GR-RET .SAME .SAMCNT>>
+ <SET SAME <>>
+ <MAPRET .TEM>)
+ (ELSE <MAPRET>)>)
+ (ELSE
+ <COND (.SAME <SET TEM <GR-RET .SAME .SAMCNT>>)
+ (ELSE <SET TEM <>>)>
+ <SET TT <IVECTOR <LENGTH .ELE>>>
+ <PUT .TT 1 <COND (<==? <1 .ELE> OPT> OPTIONAL) (ELSE <1 .ELE>)>>
+ <MAPR <>
+ <FUNCTION (X Y) <PUT .X 1 <CANONICAL-DECL <1 .Y>>>>
+ <REST .TT>
+ <REST .ELE>>
+ <SET SAME <>>
+ <COND (.TEM <MAPRET .TEM .TT>) (ELSE .TT)>)>)
+ (ELSE
+ <SET ELE <CANONICAL-DECL .ELE>>
+ <COND (<AND .SAME <=? .SAME .ELE>>
+ <SET SAMCNT <+ .SAMCNT 1>>
+ <COND (.LAST <GR-RET .ELE .SAMCNT>) (ELSE <MAPRET>)>)
+ (ELSE
+ <COND (.SAME <SET TEM <GR-RET .SAME .SAMCNT>>)
+ (ELSE <SET TEM <>>)>
+ <SET SAME .ELE>
+ <SET SAMCNT 1>
+ <COND (.LAST <COND (.TEM <MAPRET .TEM .ELE>) (ELSE .ELE)>)
+ (.TEM)
+ (ELSE <MAPRET>)>)>)>>
+ <REST .L>>)
+ FORM>>
+
+<DEFINE GR-RET (X N) #DECL ((N) FIX)
+ <COND (<1? .N> .X)(ELSE [.N .X])>>
+
+<ENDPACKAGE>