20 SD=0:SQ$="":SV$="":T=0:T1=0:T2=0:V$="":X=0:XC$="":XS$="":XP$="":ZC=0:DIM REF(DS*2),PRO(DS):SCREEN 0,0,0:WIDTH 80:COLOR 11,0:KEY OFF:CLS:LINE INPUT"ENTER THE NAME OF THE PROGRAM TO BE SQUISHED: ";SQ$
30 XS$="N":IP$="N":XC$="N":XP$="N":PRINT:LINE INPUT"ENTER THE NAME FOR THE FINAL SQUISHED PROGRAM: ";SV$:PRINT:LINE INPUT"WOULD YOU LIKE EXTRA SPACES DELETED? (Y/N) ";XS$:IF XS$="" THEN XS$="N"
40 PRINT:LINE INPUT"WOULD YOU LIKE REM STATEMENTS DELETED? (Y/N) ";IP$:IF IP$="" THEN IP$="N"
50 PRINT:LINE INPUT"WOULD YOU LIKE TO COMBINE LINES? (Y/N) ";XC$:IF XC$="" THEN XC$="N"
60 PRINT:LINE INPUT"WOULD YOU LIKE TO PROTECT ANY LINES? (Y/N) ";XP$:IF XP$="" THEN XP$="N"
70 ON ERROR GOTO 560:XS$=FNI$(XS$):IP$=FNI$(IP$):XC$=FNI$(XC$):XP$=FNI$(XP$)
80 IF XS$="N" AND IP$="N" AND XC$="N" AND XP$="N" THEN RUN
90 IF XP$="Y" THEN INPUT"ENTER LINE NUMBER TO PROTECT (0 TO EXIT) ";PRO(PV):IF PRO(PV)>0 AND PV<DS THEN PV=PV+1:GOTO 90
100 OPEN SQ$ FOR INPUT AS #1
110 IF EOF(1) THEN 240
120 LINE INPUT #1,A$:IF ASC(A$)>58 THEN COLOR 12,0:PRINT:PRINT"**** '";SQ$;"' IS NOT AN ASCII FILE ****":PRINT:COLOR 11,0:END
130 G1=1:G2=1:G3=1:G4=1:G5=1:G6=1
140 D=4:T=INSTR(G1,A$,"THEN"):IF T THEN G1=T+D:GOTO 210
150 T=INSTR(G2,A$,"GOTO"):IF T THEN G2=T+D:GOTO 210
160 T=INSTR(G3,A$,"ELSE"):IF T THEN G3=T+D:GOTO 210
170 T=INSTR(G4,A$,"GOSUB"):IF T THEN D=5:G4=T+D:GOTO 210
180 T=INSTR(G5,A$,"RESUME"):IF T THEN D=6:G5=T+D:GOTO 210
190 T=INSTR(G6,A$,"RUN"):IF T THEN D=3:G6=T+D:GOTO 210
200 GOTO 110
210 A=VAL(MID$(A$,T+D)):IF A THEN FOR HH=1 TO R:IF REF(HH)<>A THEN NEXT:R=R+1:REF(R)=A
220 IF A>0 THEN T=T+D:D=1:T1=INSTR(T,A$,","):T2=INSTR(T,A$,":"):IF T1>0 AND (T2=0 OR T1<T2) THEN T=T1:GOTO 210
230 GOTO 140
240 CLOSE:FOR S=1 TO R:FOR S1=S TO R:IF REF(S)<REF(S1) THEN SWAP REF(S),REF(S1)
250 NEXT S1,S:FOR S=0 TO PV:FOR S1=S TO PV:IF PRO(S)>PRO(S1) THEN SWAP PRO(S),PRO(S1)
260 NEXT S1,S:OPEN SQ$ FOR INPUT AS #1:OPEN SV$ FOR OUTPUT AS #2:CLS
270 IF EOF(1) THEN 380
280 LINE INPUT #1,A$:FOR HH=INSTR(A$," ") TO LEN(A$)-1:IF MID$(A$,HH+1,1)=" " THEN NEXT
390 LOCATE 3,1:PRINT STRING$(255,32):LOCATE 3,1:COLOR 14,0:PRINT"PRESS 'L' TO LOAD THE SQUISHED PROGRAM":SOUND 1000,6:SOUND 660,5:COLOR 11,0
400 Q$=INKEY$:IF Q$="" THEN 400 ELSE CLS:IF Q$="L" THEN LOAD SV$ ELSE END
410 N$=LEFT$(A$,PP):ZC=160+PP:PP=PP+1:P=0:J$="":DT=0:FOR T=PP TO LEN(A$):L$=MID$(A$,T,1):AZ=INT(ZC/80):LOCATE AZ+1,ZC-AZ*80+1:COLOR 10,0:PRINT MID$(A$,T,1);:ZC=ZC+1:COLOR 12,0:LOCATE 8,19:PRINT T
420 COLOR 11,0:IF L$=CHR$(34) THEN IF P THEN P=0 ELSE P=1
430 IF P THEN 520
440 IF MID$(A$,T,4)="DATA" THEN DT=1 ELSE IF L$=":" THEN DT=0
450 IF DT THEN 520
460 IF L$<>" " OR XS$<>"Y" THEN 500 ELSE IF J$>"" THEN L1$=RIGHT$(J$,1):IF L1$="^" OR (L1$>")" AND L1$<"0") OR (L1$>"9" AND L1$<"A") THEN L$=""
470 L1$="X":IF T<LEN(A$) THEN L1$=MID$(A$,T+1,1)
480 IF L1$="^" OR L1$=CHR$(34) OR L1$=" " OR (L1$>")" AND L1$<"0") OR (L1$>"9" AND L1$<"A") THEN L$=""
490 IF L$="" THEN SD=SD+1
500 IF PV>PJ THEN IF LN=PRO(PJ) THEN PJ=PJ+1:GOTO 540 ELSE IF LN>PRO(PJ) THEN PJ=PJ+1
510 IF MID$(A$,T,3)="REM" OR L$="'" THEN IF IP$<>"Y" THEN A$=N$+J$+MID$(A$,T,255):GOTO 540 ELSE RD=RD+1:IF LN=REF(R) THEN R=R-1:A$=N$+J$+"'":GOTO 540 ELSE IF J$="" THEN 270 ELSE 530