MACRO
&lab subroutine &parms,&work
&lab anop
 aif c:&work,.a
 lclc &work
&work setc 0
.a
 gbla &totallen
 gbla &worklen
&worklen seta &work
&totallen seta 0
 aif c:&parms=0,.e
 lclc &len
 lclc &p
 lcla &i
&i seta c:&parms
.b
&p setc &parms(&i)
&len amid &p,2,1
 aif "&len"=":",.c
&len amid &p,1,2
&p amid &p,4,l:&p-3
 ago .d
.c
&len amid &p,1,1
&p amid &p,3,l:&p-2
.d
&p equ &totallen+3+&work
&totallen seta &totallen+&len
&i seta &i-1
 aif &i,^b
.e
 tsc
 sec
 sbc #&work
 tcs
 inc a
 phd
 tcd
 mend
 MACRO
&lab return &r
&lab anop
 lclc &len
 aif c:&r,.a
 lclc &r
&r setc 0
&len setc 0
 ago .h
.a
&len amid &r,2,1
 aif "&len"=":",.b
&len amid &r,1,2
&r amid &r,4,l:&r-3
 ago .c
.b
&len amid &r,1,1
&r amid &r,3,l:&r-2
.c
 aif &len<>2,.d
 ldy &r
 ago .h
.d
 aif &len<>4,.e
 ldx &r+2
 ldy &r
 ago .h
.e
 aif &len<>10,.g
 aif &totallen=0,.f
 lda &worklen+1
 sta &worklen+&totallen+1
 lda &worklen
 sta &worklen+&totallen
.f
 pld
 tsc
 clc
 adc #&worklen+&totallen
 tcs
 phb
 plx
 ply
 lda &r+8
 pha
 lda &r+6
 pha
 lda &r+4
 pha
 lda &r+2
 pha
 lda &r
 pha
 phy
 phx
 plb
 rtl
 mexit
.g
 mnote 'Not a valid return length',16
 mexit
.h
 aif &totallen=0,.i
 lda &worklen+1
 sta &worklen+&totallen+1
 lda &worklen
 sta &worklen+&totallen
.i
 pld
 tsc
 clc
 adc #&worklen+&totallen
 tcs
 aif &len=0,.j
 tya
.j
 rtl
 mend
 MACRO
&LAB MOD2 &N1,&N2,&N3
 AIF C:&N3,.A
 LCLC &N3
&N3 SETC &N1
.A
&LAB ~SETM
 LCLC &C
&C AMID "&N2",1,1
 AIF "{"="&C",.B
 AIF "["="&C",.B
 ~OP LDX,&N2
 AGO .C
.B
 ~LDA &N2
 TAX
.C
 ~LDA &N1
 JSL ~MOD2
 ~STA &N3
 ~RESTM
 MEND
 MACRO
&LAB ~SETM
&LAB ANOP
 AIF C:&~LA,.B
 GBLB &~LA
 GBLB &~LI
.B
&~LA SETB S:LONGA
&~LI SETB S:LONGI
 AIF S:LONGA.AND.S:LONGI,.A
 REP #32*(.NOT.&~LA)+16*(.NOT.&~LI)
 LONGA ON
 LONGI ON
.A
 MEND
 MACRO
&LAB ~RESTM
&LAB ANOP
 AIF (&~LA+&~LI)=2,.I
 SEP #32*(.NOT.&~LA)+16*(.NOT.&~LI)
 AIF &~LA,.H
 LONGA OFF
.H
 AIF &~LI,.I
 LONGI OFF
.I
 MEND
 MACRO
&LAB ~LDA &OP
 LCLC &C
&C AMID "&OP",1,1
 AIF "&C"<>"{",.B
&C AMID "&OP",L:&OP,1
 AIF "&C"="}",.A
 MNOTE "Missing closing '}'",2
&OP SETC &OP}
.A
&OP AMID "&OP",2,L:&OP-2
&OP SETC (&OP)
.B
&LAB LDA &OP
 MEND
 MACRO
&LAB ~STA &OP
 LCLC &C
&C AMID "&OP",1,1
 AIF "&C"<>"{",.B
&C AMID "&OP",L:&OP,1
 AIF "&C"="}",.A
 MNOTE "Missing closing '}'",2
&OP SETC &OP}
.A
&OP AMID "&OP",2,L:&OP-2
&OP SETC (&OP)
.B
&LAB STA &OP
 MEND
 MACRO
&LAB ~OP &OPC,&OP
 LCLC &C
&C AMID "&OP",1,1
 AIF "&C"<>"{",.B
&C AMID "&OP",L:&OP,1
 AIF "&C"="}",.A
 MNOTE "Missing closing '}'",2
&OP SETC &OP}
.A
&OP AMID "&OP",2,L:&OP-2
&OP SETC (&OP)
.B
&LAB &OPC &OP
 MEND
 MACRO
&LAB BLE &BP
&LAB BLT &BP
 BEQ &BP
 MEND
 MACRO
&LAB LONG &A,&B
 LCLB &I
 LCLB &M
&A AMID &A,1,1
&M SETB ("&A"="M").OR.("&A"="m")
&I SETB ("&A"="I").OR.("&A"="i")
 AIF C:&B=0,.A
&B AMID &B,1,1
&M SETB ("&B"="M").OR.("&B"="m").OR.&M
&I SETB ("&B"="I").OR.("&B"="i").OR.&I
.A
&LAB REP #&M*32+&I*16
 AIF .NOT.&M,.B
 LONGA ON
.B
 AIF .NOT.&I,.C
 LONGI ON
.C
 MEND
 MACRO
&LAB SHORT &A,&B
 LCLB &I
 LCLB &M
&A AMID &A,1,1
&M SETB ("&A"="M").OR.("&A"="m")
&I SETB ("&A"="I").OR.("&A"="i")
 AIF C:&B=0,.A
&B AMID &B,1,1
&M SETB ("&B"="M").OR.("&B"="m").OR.&M
&I SETB ("&B"="I").OR.("&B"="i").OR.&I
.A
&LAB SEP #&M*32+&I*16
 AIF .NOT.&M,.B
 LONGA OFF
.B
 AIF .NOT.&I,.C
 LONGI OFF
.C
 MEND