1  COM A[25],V[2,10]
2  COM A$[255],A1$[255],B0$[5],D0$[255],F0$[1],F1$[11],S0$[6]
3  COM H0$[94],H1$[94],J0$[3],J1$[3],K1$[15],P0$[184],P1$[4]
4  COM N0$[1],U0$[11],U1$[11],V0$[10],V1$[10],W$[102],W0$[8],W1$[255],Z$[255]
5  COM C0,C1,C2,C3,C4,C5,C6,C7,C8,C9,D0
6  COM D,D1,D2,F9,G,G0,G8,L,S0,V0,V1,V2,V3,V5,V7
7  COM W0,W1,W3,W5,W8,W9
10  COM L[5],M[64,2],N[64,2],P[2]
11  COM B$[94],L$[94],M$[94],N$[94],O$[94],P$[94]
12  COM L1,L2,L3,L4,L7,M1,M2,M3,M4,M5,M7,M8,M9,N1,N2,N3,N4
15  REM (C) COPYRIGHT  HEWLETT-PACKARD CO. 1976
16  REM ALL RIGHTS RESERVED.  NO PART OF THIS PROGRAM MAY BE PHOTOCOPIED,
17  REM REPRODUCED OR TRANSLATED TO ANOTHER PROGRAM LANGUAGE WITHOUT THE
18  REM PRIOR WRITTEN CONSENT OF HEWLETT-PACKARD CO.
50  FILES *,*
99  CHAIN "$EDITOR"
100  REM *ENTRY*
110  IF  ERROR  THEN 9998
120  ASSIGN U0$,C1,J, PR 
130  IF J THEN 9998
140  U0=V6=C0
145  D1=D
150  U1=C2
160  GOSUB 1000
165  W1=C0
170  A1$="EDIT00"
175  A1$[C7]=B0$
180  CHAIN J,A1$,100
190  GOTO 9998
1000  REMP >>MERGE<<
1005  GOTO 1200
1010  PRINT "Missing or illegal file name."
1015  GOTO 1190
1020  PRINT "You can't use your work file here."
1025  GOTO 1190
1030  PRINT "You can't use your use file here."
1035  GOTO 1190
1040  PRINT "Illegal file range format."
1045  GOTO 1190
1050  PRINT "Work file full; merge terminated."
1055  GOTO 1190
1060  PRINT "Unnumbered lines cannot be merged."
1190  GOSUB 9700
1195  RETURN 
1200  REM2 *MERGE*
1205  FILES *
1210  U3=H=C0
1215  IF V0=C2 THEN 1600
1300  REM2 *SYNTAX*
1305  H1=C2
1310  H2=H4=C1
1315  H3=1.E+06
1320  IF POS(A$,",U") THEN 1060
1325  J1=POS(A$,"(")
1330  IF J1 THEN 1340
1335  J1=LEN(A$)+C1
1340  IF J1>12 THEN 1010
1345  F1$=A$[C1,J1-C1]
1350  A$=A$[J1,LEN(A$)]
1355  IF F1$[C1,C1]#"#" THEN 1395
1360  IF V3#C2 THEN 1010
1365  IF F1$#"#TCL" THEN 1380
1370  U3=C1
1375  GOTO 1400
1380  IF F1$#"#TCR" THEN 1010
1385  U3=C2
1390  GOTO 1400
1395  IF F1$=U0$ THEN 1020
1400  IF V2=C1 THEN 1410
1405  IF F1$=U1$ THEN 1030
1410  IF  NOT LEN(A$) THEN 1510
1415  IF A$[LEN(A$)]#")" THEN 1040
1420  A$=A$[C2,LEN(A$)-C1]
1425  IF  NOT LEN(A$) THEN 1040
1430  J1=POS(A$,":") MAX POS(A$,"/")
1435  IF  NOT J1 THEN 1455
1440  A1$=A$[C1,J1-C1]
1445  A$=A$[J1+C1,LEN(A$)]
1450  GOTO 1460
1455  A1$=A$
1460  GOSUB 6000
1465  IF  NOT F1 THEN 1040
1470  H2=F1
1475  IF  NOT J1 THEN 1500
1480  IF  NOT LEN(A$) THEN 1040
1485  A1$=A$
1490  GOSUB 6000
1495  IF  NOT F1 THEN 1040
1500  H3=F1
1505  IF H3<H2 THEN 1040
1510  H=C1
1600  REM2 *EXEC*
1605  V0=C2
1610  B1=B2=C0
1615  GOSUB H+C1 OF 8300,4200
1620  IF E THEN 1755
1625  IF V0=C1 OR V5=C1 THEN 1740
1630  IF H OR A[C1]#C3 THEN 1645
1635  A$[C7]=A$
1640  A$[C1,C6]=""
1645  B1=B1+C1
1650  X1=L
1655  X2=C0
1660  GOSUB 7200
1665  IF LEN(A$) <= 94 THEN 1680
1670  PRINT "Warning: Text beyond 94 characters discarded."
1675  A$=A$[C1,94]
1680  IF E THEN 1705
1685  GOSUB V7 AND H OF 1800
1690  B$=A$
1695  GOSUB 6800
1700  GOTO 1725
1705  B$=A$
1710  X5=L
1715  GOSUB 6500
1720  IF E THEN 1050
1725  P2=A[C3]+C1
1730  GOSUB 3700
1735  IF V5#C2 AND  NOT SYS(C3) THEN 1615
1740  IF  NOT H THEN 1755
1745  CONVERT B1 TO P0$
1750  PRINT P0$" lines merged into WORK file."
1755  RETURN 
1800  REM2 <DISPLAY>
1805  IF B2 THEN 1820
1810  PRINT "The following lines have been replaced:"
1815  B2=1
1820  X7=L
1825  GOSUB 9900
1830  P0$=V1$
1835  P0$[LEN(P0$)+C1]=" "
1840  W6=LEN(P0$)
1845  IF A[C1]#C3 THEN 1865
1850  IF LEN(B$)<C7 THEN 1870
1855  P0$[W6+C1]=B$[C7]
1860  GOTO 1870
1865  P0$[W6+C1]=B$
1870  GOSUB 6400
1875  RETURN 
3300  REM <YES/NO>
3305  J=SYS(C3)
3310  PRINT P0$;
3315  LINPUT A$
3320  IF SYS(C3) THEN 3370
3322  IF  NOT LEN(A$) THEN 3380
3325  IF LEN(A$)<C4 THEN 3340
3330  PRINT "Response limited to YES (or return) or NO (or break)."
3335  GOTO 3310
3340  A1$=UOS$(A$)
3345  RESTORE 3350
3350  DATA 2,1,"YES",1,"NO"
3355  GOSUB 9300
3360  IF  NOT K2 THEN 3330
3365  RETURN 
3370  K2=C2
3375  RETURN 
3380  K2=C1
3385  RETURN 
3700  REM <PTR>
3705  P[C1]=L1
3710  P2=(P2+A[C2]-C1) MAX A[C2]
3715  IF P2 <= A[C3] THEN 3755
3720  GOSUB 6300
3725  IF  NOT X9 THEN 3745
3730  P[C1]=X9
3735  P[C2]=A[C2]
3740  RETURN 
3745  P[C2]=A[C3]
3750  RETURN 
3755  P[C2]=P2
3760  RETURN 
4200  REM <FR F/CART>
4201  IF H4=C2 THEN 4242
4202  J5=H2-C1
4203  IF  NOT U3 THEN 4223
4204  X6=U2=C0
4205  SYSTEM J,"ECHO-OFF"
4206  CONVERT U3 TO I$
4207  P0$='27"&p u0C"
4208  P0$[C4,C4]=I$
4209  PRINT P0$
4210  ENTER 255,J,A$
4211  IF A$[C1,C1]="S" THEN 4214
4212  PRINT "No tape in "F1$
4213  GOTO 4315
4214  IF V0=C2 THEN 4242
4215  FOR I=C1 TO J5
4216  GOSUB 4350
4217  IF V5=C0 THEN 4314
4218  IF V5=C1 THEN 4298
4219  IF SYS(C3) THEN 4315
4220  NEXT I
4221  X6=J5
4222  GOTO 4242
4223  A1$=F1$
4224  J3=C3
4225  J4=C1
4226  GOSUB 9500
4227  IF E THEN 4315
4228  X6=C0
4229  IF V0=C2 THEN 4241
4230  IF U2 THEN 4238
4231  IF  END #C3 THEN 4298
4232  IF  ERROR  THEN 4307
4233  FOR I=C1 TO J5
4234  LINPUT #C3;A$
4235  NEXT I
4236  IF  ERROR  THEN 9998
4237  GOTO 4240
4238  ADVANCE #C3;J5,J
4239  IF J THEN 4298
4240  X6=J5
4241  IF  END #C3 THEN 4298
4242  IF  NOT U3 THEN 4247
4243  GOSUB 4350
4244  IF  NOT V5 THEN 4314
4245  IF V5=C1 THEN 4316
4246  GOTO 4257
4247  IF U2 THEN 4253
4248  IF  ERROR  THEN 4307
4249  LINPUT #C3;A$
4250  J5=J5+C1
4251  IF  ERROR  THEN 9998
4252  GOTO 4257
4253  IF TYP(C3)#C1 THEN 4256
4254  READ #C3;I
4255  GOTO 4253
4256  READ #C3;A$
4257  IF SYS(C3) THEN 4316
4258  IF V0=C2 THEN 4262
4259  X6=X6+C1
4260  IF H4=C2 THEN 4295
4261  W1$=A$
4262  GOSUB 9650
4263  FOR J=C1 TO LEN(A$)
4264  J1=NUM(A$[J,J])
4265  IF J1<48 AND J1#46 OR J1>57 THEN 4267
4266  NEXT J
4267  A1$=A$[C1,J-C1]
4268  GOSUB 6000
4269  IF F1 THEN 4274
4270  IF V0=C3 THEN 4289
4271  IF H4=C1 AND  NOT U2 AND ((J5=C1 AND LEN(A$)<C7) OR (J5=C2 AND  NOT LEN(A$))) THEN 4248
4272  PRINT "Missing or illegal line number encountered in file "F1$"."
4273  GOTO 4315
4274  IF V0=C3 THEN 4281
4275  IF A[C1]=C3 THEN 4291
4276  IF J1=32 OR J1=58 THEN 4279
4277  A$=A$[J]
4278  GOTO 4291
4279  A$=A$[J+C1]
4280  GOTO 4291
4281  IF V2=C2 AND  NOT W1 THEN 4295
4282  PRINT "File "F1$" seems to have numbered lines."
4283  SYSTEM J,"ECHO-ON"
4284  P0$="Do you want to continue? "
4285  GOSUB 3300
4286  IF  NOT U3 THEN 4288
4287  SYSTEM J,"ECHO-OFF"
4288  GOTO K2 OF 4289,4316
4289  A$=W1$
4290  GOTO 4295
4291  IF F1>X6 THEN 4294
4292  PRINT "Line numbers out of sequence in file "F1$"."
4293  GOTO 4315
4294  L=X6=F1
4295  IF H4=C2 THEN 4304
4296  IF X6<H2 THEN 4242
4297  IF X6 <= H3 THEN 4300
4298  PRINT "No lines in range."
4299  GOTO 4315
4300  H4=C2
4301  IF U3 THEN 4305
4302  IF  END #C3 THEN 4316
4303  GOTO 4305
4304  IF X6>H3 THEN 4316
4305  GOSUB 9670
4306  IF LEN(A$) <= 94 THEN 4309
4307  PRINT "Warning: Input line truncated to 94 characters."
4308  A$=A$[C1,94]
4309  IF X6=H3 THEN 4312
4310  V5=C3
4311  RETURN 
4312  V5=C2
4313  GOTO 4317
4314  PRINT "Transmission error on file "F1$
4315  GOSUB 9700
4316  V5=C1
4317  SYSTEM J,"ECHO-ON"
4318  RETURN 
4350  REM2 <READ CART>
4352  V5=C3
4354  P0$='27"&p s0R"
4356  P0$[C4,C4]=I$
4358  PRINT P0$;
4360  ENTER 40,J,A$
4362  IF A$[C1,C1]#'30 THEN 4376
4364  PRINT '27"^"
4366  ENTER 12,J,A$
4368  IF NUM(A$[C5,C5])#48 THEN 4374
4370  V5=C1
4372  GOTO 4376
4374  V5=C0
4376  RETURN 
6000  REM <L#>
6005  F1=POS(A1$,".")
6010  IF (A[C1]=C2 OR (A[C1]=C3 AND H)) AND F1 THEN 6050
6015  IF  NOT F1 THEN 6025
6020  IF LEN(A1$[F1])>C3+(A[C1]=C3) THEN 6050
6025  CONVERT A1$ TO F1,5493
6030  IF A[C1]=C3 AND H THEN 6040
6035  F1=INT(F1*100*(((A[C1]=C3)*D0) MAX C1)+.5)
6040  IF (A[C1]=C2 AND F1>999900.) OR F1>999999. OR F1 <= C0 THEN 6050
6045  RETURN 
6050  F1=C0
6055  RETURN 
6300  REM <NXT LI>
6305  IF L2=L7 THEN 6320
6310  X9=L[L2+C1]
6315  RETURN 
6320  IF N1=N2 THEN 6335
6325  X9=N[N1+C1,C1]
6330  RETURN 
6335  IF M1=M2 THEN 6350
6340  X9=M[M1+C1,C1]
6345  RETURN 
6350  X9=C0
6355  RETURN 
6400  REM <PRT P0$>
6410  I=C1
6420  J=A[C9] MIN LEN(P0$)
6430  PRINT P0$[I,J]
6440  I=J+C1
6450  IF  NOT LEN(P0$[I]) THEN 6490
6460  J=(I+A[C9]-W6-C1) MIN LEN(P0$)
6470  PRINT TAB(W6);P0$[I,J]
6480  GOTO 6440
6490  RETURN 
6500  REM
6502  X=X5
6504  GOSUB 7500
6506  IF  NOT L4 THEN 6512
6508  E=C3
6510  RETURN 
6512  IF L7=C5 THEN 6566
6514  REM
6516  IF L2#C4 THEN 6522
6518  P$=B$
6520  GOTO 6542
6522  P$=O$
6524  IF L2#C3 THEN 6530
6526  O$=B$
6528  GOTO 6542
6530  O$=N$
6532  IF L2#C2 THEN 6538
6534  N$=B$
6536  GOTO 6542
6538  N$=M$
6540  M$=B$
6542  FOR J=L7 TO L2 STEP -C1
6544  L[J+C1]=L[J]
6546  NEXT J
6548  L[L2+C1]=X5
6550  L1=X5
6552  L2=L2+C1
6554  L4=C1
6556  L7=L7+C1
6558  M5=M[64,C2]=M5+C1
6560  E=C0
6562  GOSUB 7800
6564  RETURN 
6566  IF N2#63 THEN 6576
6568  IF M2=63 THEN 6578
6570  GOSUB 7000
6572  J4=X4
6574  IF  NOT J4 THEN 6578
6576  IF M7 OR M8<M9 THEN 6582
6578  E=C2
6580  RETURN 
6582  IF L2>C2 THEN 6588
6584  J2=L2+C1
6586  GOTO 6592
6588  J2=L2
6590  REM
6592  READ #C1,L3
6594  UPDATE #C1;J2
6596  ADVANCE #C1;C2*L2,J
6598  IF L2>C2 THEN 6602
6600  PRINT #C1;X5,B$
6602  FOR J1=J2+C1 TO C5
6604  PRINT #C1;C0,""
6606  NEXT J1
6608  GOSUB 7000
6610  REM
6612  PRINT #C1,X4;C6-J2
6614  IF L2 <= C2 THEN 6618
6616  PRINT #C1;X5,B$
6618  FOR J=L2+C1 TO C5
6620  PRINT #C1;L[J]
6622  GOTO J-C1 OF 6624,6628,6632,6636,6638
6624  PRINT #C1;M$
6626  GOTO 6638
6628  PRINT #C1;N$
6630  GOTO 6638
6632  PRINT #C1;O$
6634  GOTO 6638
6636  PRINT #C1;P$
6638  NEXT J
6640  FOR J=C1 TO J2-C1
6642  PRINT #C1;C0,""
6644  NEXT J
6646  L1=X5
6648  IF L2>C2 THEN 6656
6650  L2=L2+C1
6652  J5=L[L2]
6654  GOTO 6662
6656  L2=C1
6658  L3=X4
6660  J5=X5
6662  L4=C1
6664  GOSUB 7700
6666  IF N2#63 THEN 6726
6668  REM
6670  READ #C1,N3
6672  ADVANCE #C1;64,J
6674  MAT  READ #C1;N[31,C2]
6676  J6=N[C1,C1]
6678  MAT  PRINT #C1,J4;N
6680  MAT N=ZER[31,C2]
6682  MAT  PRINT #C1;N
6684  PRINT #C1;C0,C0,31,J4
6686  READ #C1,N3
6688  ADVANCE #C1;64,J
6690  MAT  PRINT #C1;N
6692  PRINT #1;32,N3
6694  REM
6696  FOR J=M2 TO M1+C1 STEP -C1
6698  M[J+C1,C1]=M[J,C1]
6700  M[J+C1,C2]=M[J,C2]
6702  NEXT J
6704  M[M1+C1,C1]=J6
6706  M[M1+C1,C2]=J4
6708  M2=M[64,C1]=M2+C1
6710  IF N1>32 THEN 6716
6712  N2=32
6714  GOTO 6726
6716  N1=N1-32
6718  N2=31
6720  N3=J4
6722  M1=M1+C1
6724  REM
6726  READ #C1,N3
6728  ADVANCE #C1;C2*N1,J
6730  IF N1=62 THEN 6734
6732  MAT  READ #C1;N[62-N1,C2]
6734  READ #C1,N3
6736  ADVANCE #C1;C2*N1,J
6738  PRINT #C1;J5,X4
6740  IF N1=62 THEN 6744
6742  MAT  PRINT #C1;N
6744  PRINT #C1;N2+C1,N3
6746  MAT  READ #C1,N3;N[64,C2]
6748  N1=N1+(L2=C1)
6750  N2=N[64,C1]
6752  E=C0
6754  M5=M[64,C2]=M5+C1
6756  RETURN 
6800  REM
6805  GOTO L2 OF 6810,6820,6830,6840,6850
6810  L$=B$
6815  GOTO 6855
6820  M$=B$
6825  GOTO 6855
6830  N$=B$
6835  GOTO 6855
6840  O$=B$
6845  GOTO 6855
6850  P$=B$
6855  GOSUB 7800
6860  RETURN 
7000  REM
7005  IF M7 THEN 7045
7010  IF M8<M9 THEN 7025
7015  X4=C0
7020  RETURN 
7025  X4=M8=M8+C1
7030  IF M8=M9 THEN 7040
7035  PRINT #C1,M8+C1; END 
7040  RETURN 
7045  X4=M7
7050  READ #C1,M7;M7
7055  RETURN 
7200  REM
7202  IF  NOT M5 THEN 7212
7204  GOTO X1+C3 OF 7216,7224,7238
7206  X=X1
7208  GOSUB 7500
7210  IF L4 THEN 7242
7212  E=C1
7214  RETURN 
7216  X=C0
7218  GOSUB 7500
7220  GOSUB 7400
7222  GOTO 7242
7224  X=M[M2,C1]
7226  GOSUB 7500
7228  X=N[N2,C1]
7230  GOSUB 7500
7232  X=L[L7]
7234  GOSUB 7500
7236  GOTO 7242
7238  X=P[C1]
7240  GOSUB 7500
7242  FOR J5=C1 TO ABS(X2)
7244  GOSUB (X2>C0)+C1 OF 7300,7400
7246  IF E THEN 7254
7248  NEXT J5
7250  GOSUB 7600
7252  E=C0
7254  RETURN 
7300  REM
7304  IF L2=C1 THEN 7328
7308  IF  NOT L[L2-C1] THEN 7376
7312  L2=L2-C1
7316  L1=L[L2]
7320  E=C0
7324  RETURN 
7328  IF N1=C1 THEN 7340
7332  X=N[N1-C1,C1]
7336  GOTO 7356
7340  IF M1=C1 THEN 7376
7344  X=M[M1-C1,C1]
7348  GOSUB 7500
7352  X=N[N2,C1]
7356  GOSUB 7500
7360  L1=L[L7]
7364  L2=L7
7368  E=C0
7372  RETURN 
7376  E=C1
7380  RETURN 
7400  REM
7405  IF L2=L7 THEN 7430
7410  L2=L2+C1
7415  L1=L[L2]
7420  E=C0
7425  RETURN 
7430  IF N1=N2 THEN 7445
7435  X=N[N1+C1,C1]
7440  GOTO 7455
7445  IF M1=M2 THEN 7470
7450  X=M[M1+C1,C1]
7455  GOSUB 7500
7460  E=C0
7465  RETURN 
7470  E=C1
7475  RETURN 
7500  REM
7502  IF X >= L[C1] AND X <= L[L7] THEN 7554
7504  IF X >= N[C1,C1] AND X <= N[N2,C1] THEN 7532
7506  I1=C1
7508  I2=M2+C1
7510  M1=INT((I1+I2)/C2)
7512  GOTO SGN(X-M[M1,C1])+C2 OF 7514,7524,7518
7514  I2=M1
7516  GOTO 7510
7518  IF I2-M1=C1 THEN 7524
7520  I1=M1
7522  GOTO 7510
7524  IF M[M1,C2]=N3 THEN 7532
7526  N3=M[M1,C2]
7528  MAT  READ #C1,N3;N[64,C2]
7530  N2=N[64,C1]
7532  I1=C1
7534  I2=N2+C1
7536  N1=INT((I1+I2)/C2)
7538  GOTO SGN(X-N[N1,C1])+C2 OF 7540,7550,7544
7540  I2=N1
7542  GOTO 7536
7544  IF I2-N1=C1 THEN 7550
7546  I1=N1
7548  GOTO 7536
7550  L3=N[N1,C2]
7552  GOSUB 7700
7554  L1=X
7556  FOR L2=C1 TO L7
7558  GOTO SGN(X-L[L2])+C2 OF 7562,7568,7560
7560  NEXT L2
7562  L2=L2-C1
7564  L4=C0
7566  RETURN 
7568  L4=C1
7570  RETURN 
7600  REM
7605  GOTO L2 OF 7610,7620,7630,7640,7650
7610  B$=L$
7615  RETURN 
7620  B$=M$
7625  RETURN 
7630  B$=N$
7635  RETURN 
7640  B$=O$
7645  RETURN 
7650  B$=P$
7655  RETURN 
7700  REM
7710  READ #1,L3;L7,L[C1],L$,L[C2],M$,L[C3],N$,L[C4],O$,L[C5],P$
7720  RETURN 
7800  REM
7810  PRINT #1,L3;L7,L[C1],L$,L[C2],M$,L[C3],N$,L[C4],O$,L[C5],P$
7820  RETURN 
8300  REM <S IN>
8301  V8=C1
8302  J=SYS(C3)
8303  E=C0
8312  A$=""
8316  J0=W7=C0
8318  IF  NOT J0 THEN 8321
8319  P1$="????"
8320  GOTO 8327
8321  GOTO V0 OF 9998,8324,8326
8324  P1$="#"
8325  GOTO 8327
8326  P1$=":"
8327  IF V2=C2 AND  NOT W1 THEN 8376
8328  IF J0 THEN 8372
8329  GOTO V0 OF 9998,8372,8331
8331  I9=V7*(C8-(A[C1]=C2)*C3)+ NOT V7
8332  IF V1=I9 AND  NOT W5 OR  NOT V3 OR  NOT A[13] THEN 8362
8334  REM
8336  SYSTEM J,"ECHO-OFF"
8338  PRINT  USING "#,"'34'9'27"2"'27"a"'34
8344  ENTER D0,J1,A1$
8346  IF A1$[C4,C6]#"000" THEN 8338
8348  A1$='27"&a  C"
8350  FOR J1=C1 TO A[13]
8351  IF V[C1,J1]<A[C2] THEN 8358
8352  CONVERT V[C1,J1]+I9-A[C2] TO J0$
8354  A1$[C6-LEN(J0$),C5]=J0$
8356  PRINT  USING "#,6A";A1$
8357  PRINT  USING "#,"'34'27"1"'34
8358  NEXT J1
8359  PRINT  USING "#,"'34'13'27"A"'27"J"'34
8360  SYSTEM J,"ECHO-ON"
8362  V1=I9
8364  W5=C0
8366  PRINT P0$;
8368  GOTO 8373
8372  PRINT P1$;
8373  LINPUT A1$
8374  GOTO 8420
8376  IF V6 THEN 8394
8380  ASSIGN U1$,U1,J, WR 
8382  IF J<C3 THEN 8388
8384  PRINT "USE file no longer accessible"
8386  GOTO 8984
8388  V6=C1
8390  READ #U1,W8
8392  ADVANCE #U1;W9,J
8394  GOTO TYP(U1) OF 8396,8400,8408
8396  PRINT "Number encountered in USE file."
8398  GOTO 8984
8400  READ #U1;A1$
8401  IF  NOT W3 THEN 8403
8402  PRINT P1$;A1$
8403  W8=REC(U1)
8404  W9=ITM(U1)
8406  GOTO 8420
8408  V2=W3=C1
8410  GOTO 8300
8420  IF LEN(A$)+LEN(A1$) <= 255 THEN 8426
8422  PRINT "Total line length exceeds 255 characters."
8424  GOTO 8984
8426  IF V0#C3 OR J0 THEN 8430
8428  A$=P0$[V9+C1,LEN(P0$)]
8429  P0$=P0$[C1,V9]
8430  IF  NOT LEN(A1$) THEN 8448
8432  A$[LEN(A$)+C1]=A1$
8434  IF A$[LEN(A$)]#"&" THEN 8448
8436  A$=A$[C1,LEN(A$)-C1]
8438  IF J0 OR LEN(A$) >= G8 THEN 8442
8440  W7=LEN(A$)+C1
8442  J0=C1
8444  V8=V8+C1
8446  GOTO 8318
8448  IF  NOT A[24] THEN 8464
8450  FOR J=C1 TO LEN(A$)
8452  J1=NUM(A$[J,J])
8454  IF J1 >= 32 AND J1 <= 126 THEN 8462
8456  IF J1=C9 AND A[13] THEN 8462
8458  PRINT "No control characters allowed."
8459  IF V0<C3 THEN 8984
8460  P0$[LEN(P0$)+C1]=A$[C1,J-C1]
8461  GOTO 8984
8462  NEXT J
8464  GOTO V0 OF 9998,8478,8466
8466  REM2 TEXT
8468  IF LEN(A$)-A[C7]*LEN(P0$[V9+C1,LEN(P0$)])>C0 THEN 8474
8470  V5=C1
8472  GOTO 8586
8474  V5=C2
8475  IF  NOT A[D0] THEN 8542
8476  IF A$[C1,C2]="//" THEN 8802
8477  GOTO 8542
8478  REM2 #
8480  GOSUB 9650
8482  IF  NOT A[D0] THEN 8490
8484  IF A$[C1,C2]="//" THEN 8802
8490  IF LEN(A$) THEN 8500
8492  IF  NOT SYS(C3) THEN 8534
8494  V0=V5=C1
8496  W1=C0
8498  RETURN 
8500  J3=C0
8502  FOR J1=C1 TO LEN(A$)
8504  J2=NUM(A$[J1,J1])
8506  IF J2 >= 48 AND J2 <= 57 THEN 8512
8508  IF J2#46 OR J3 THEN 8514
8510  J3=C1
8512  NEXT J1
8514  IF J1=C1 THEN 8534
8515  A1$=A$[C1,J1-C1]
8516  IF J1#LEN(A$)+C1 THEN 8522
8518  A$=""
8520  GOTO 8530
8522  IF J2=32 OR J2=58 THEN 8528
8524  PRINT "Missing space or colon after the line number."
8526  GOTO 8984
8528  A$=A$[J1+C1,LEN(A$)]
8530  GOSUB 6000
8532  IF F1 THEN 8538
8534  PRINT "Missing or illegal line number."
8536  GOTO 8984
8538  L=F1
8540  V5=C2
8542  GOSUB D=C3 OR D=C5 OF 9670
8546  IF  NOT A[13] OR  NOT LEN(A$) OR V0#C3 THEN 8576
8548  J3=POS(A$,'9)
8550  IF  NOT J3 THEN 8572
8551  J5=LEN(A$)
8552  FOR J1=C1 TO A[13]
8553  IF V[C1,J1]<A[C2] THEN 8558
8554  J4=V[C1,J1]-(D=26)*(V9-V1)-A[C2]+C1
8556  IF J3<J4 THEN 8564
8558  NEXT J1
8560  A$[J3]=A$[J3+C1,LEN(A$)]
8562  GOTO 8548
8564  A$=A$[C1,J4 MAX LEN(A$)]
8566  A$[J4]=A$[J3+C1,J5]
8568  A$[J3,J4-C1]=""
8570  GOTO 8548
8572  GOSUB D=C3 OR D=C5 OF 9670
8576  IF V0=C3 THEN 8586
8578  IF D=C3 OR D=C5 OR D=20 OR  NOT LEN(A$) THEN 8586
8580  PRINT "Type only the number of the line you want to "W0$"."
8582  GOTO 8984
8586  IF SYS(C3) THEN 8592
8588  V5=C3
8590  RETURN 
8592  IF V2=C2 AND  NOT W1 THEN 8984
8594  W1=C0
8596  V0=C1
8598  RETURN 
8802  REM
8804  A$=A$[C3,LEN(A$)]
8806  FOR J=C1 TO LEN(A$)
8808  J0$=UOS$(A$[J,J])
8810  J1=NUM(J0$)
8812  IF J1<65 OR J1>90 THEN 8816
8814  NEXT J
8816  A1$=UOS$(A$[C1,J-C1])
8818  A$=A$[J,LEN(A$)]
8820  RESTORE 8822
8822  DATA 4,1,"HELP",2,"STOP",1,"ASK",1,"BREAK"
8824  GOSUB 9300
8828  IF K2 THEN 8862
8858  PRINT "Illegal or unpermitted //-command."
8860  GOTO 8984
8862  GOSUB 9650
8864  IF LEN(A$) AND K2#C3 THEN 8952
8866  GOTO K2 OF 8874,8924,8936,8970
8874  REM
8876  GOTO V0 OF 9998,8892,8912
8892  PRINT "Type the number of the line you want to "W0$;
8894  IF D#C3 AND D#C5 AND D#20 THEN 8908
8896  PRINT ", followed by a colon,"
8898  PRINT "and then the line, e.g.:"
8900  PRINT 
8902  PRINT "               # 150.4: Here is my line of text."
8904  PRINT 
8906  GOTO 8912
8908  PRINT "."
8910  GOTO 8914
8912  PRINT "Type the next line you want to "W0$"."
8914  PRINT "To terminate this operation, press the BREAK key before pressing RETURN."
8920  IF SYS(C3) AND V2=C2 AND  NOT W1 THEN 8984
8921  V8=V8+C1
8922  GOTO 8985
8924  REM
8925  IF D1=-C1 THEN 8935
8926  PRINT #C1,M3-C2;M7,M8,M9
8927  MAT  PRINT #C1,M3;M
8928  MAT  PRINT #C1,N3;N
8929  PRINT #C1,M3-C1; END 
8930  IF  NOT S0 THEN 8935
8932  ASSIGN *,C3
8934  PURGE I,S0$
8935  STOP 
8936  REM
8938  IF V0=C3 AND V2=C2 THEN 8944
8940  PRINT "//ASK cannot be used here."
8942  GOTO 8984
8944  V4=C2
8946  GOSUB 9800
8948  IF E THEN 8300
8950  IF  NOT LEN(A$) THEN 8956
8952  PRINT "Nothing permitted beyond the //"K1$" command."
8954  GOTO 8984
8956  IF LEN(A1$)<80 THEN 8962
8958  PRINT "The string in //ASK is too long."
8960  GOTO 8984
8962  P0$=A1$
8964  W1=C1
8966  V9=LEN(P0$)
8968  GOTO 8300
8970  REM
8972  IF V0=C1 THEN 8982
8974  IF SYS(C3) AND V2=C2 AND  NOT W1 THEN 8984
8976  W1=C0
8978  V0=V5=C1
8980  RETURN 
8982  PRINT "//BREAK cannot be used here."
8984  GOSUB 9700
8985  V8=V8+C2
8986  IF V0#C1 THEN 8302
8988  RETURN 
9300  REM
9310  READ J
9320  FOR K2=C1 TO J
9330  READ J1,K1$
9340  IF LEN(A1$)<J1 THEN 9360
9350  IF A1$=K1$[C1,LEN(A1$)] THEN 9380
9360  NEXT K2
9370  K2=C0
9380  RETURN 
9500  REM
9504  ASSIGN A1$,J3,J, PR 
9508  GOTO J+C1 OF 9564,9512,9512,9524,9998,9998,9532,9532,9540
9512  IF J4=C1 THEN 9564
9516  PRINT "File "A1$" is not available for writing."
9520  GOTO 9548
9524  PRINT "File "A1$" does not exist, or is not accessible."
9528  GOTO 9548
9532  PRINT "File "A1$" is in use by someone else."
9536  GOTO 9548
9540  IF J4=C2 THEN 9564
9544  PRINT "File "A1$" is not available for reading."
9548  GOSUB 9700
9552  RETURN 
9564  IF  ERROR  THEN 9584
9568  READ #J3,C1
9572  IF  ERROR  THEN 9998
9576  U2=C1
9580  GOTO 9592
9584  IF  ERROR  THEN 9998
9588  U2=C0
9592  E=C0
9596  RETURN 
9650  REM
9652  FOR J=C1 TO LEN(A$)
9654  IF A$[J,J]#" " THEN 9658
9656  NEXT J
9658  A$=A$[J,LEN(A$)]
9660  RETURN 
9670  REM
9672  FOR J=LEN(A$) TO C1 STEP -C1
9674  IF A$[J,J]#" " THEN 9678
9676  NEXT J
9678  A$=A$[C1,J]
9680  RETURN 
9700  REM
9710  E=C1
9720  Z$=""
9730  IF V2#C2 OR W1 THEN 9760
9740  PRINT "USE file abandoned."
9750  V0=V2=W3=C1
9760  RETURN 
9800  REM
9805  V0$=A$[C1,C1]
9810  IF V0$='34 THEN 9835
9815  IF V0$="@" THEN 9840
9820  PRINT "Missing or illegal string."
9825  GOSUB 9700
9830  RETURN 
9835  V4=C1
9840  J1=C2
9845  J2=POS(A$[J1],V0$)+J1-C1
9850  IF J2=J1-C1 THEN 9820
9855  IF A$[J2+C1,J2+C1]#V0$ THEN 9875
9860  A$[J2]=A$[J2+C1]
9865  J1=J2+C1
9870  GOTO 9845
9875  A1$=A$[C2,J2-C1]
9880  A$=A$[J2+C1,LEN(A$)]
9885  E=C0
9890  RETURN 
9900  REM
9903  V1$="    "
9906  IF A[C1]=C3 THEN 9933
9909  J1=INT(X7/100)
9912  IF  NOT J1 THEN 9924
9915  CONVERT J1 TO V0$
9918  V1$[C5-LEN(V0$)]=V0$
9921  IF A[C1]=C2 THEN 9972
9924  V1$[C5]=".0"
9927  CONVERT X7-J1*100 TO V0$
9930  GOTO 9951
9933  J1=INT(X7/1000)
9936  IF  NOT J1 THEN 9945
9939  CONVERT J1 TO V0$
9942  V1$[C4-LEN(V0$)]=V0$
9945  V1$[C4]=".00"
9948  CONVERT X7-J1*1000 TO V0$
9951  V1$[C8-LEN(V0$)]=V0$
9954  FOR J1=C7 TO C1 STEP -C1
9957  IF V1$[J1,J1]#"0" THEN 9963
9960  NEXT J1
9963  IF V1$[J1,J1]#"." THEN 9969
9966  J1=J1-C1
9969  V1$[J1+C1,C7]=""
9972  RETURN 
9990  REM
9991  M4=SYS(C0)
9992  N4=SYS(C1)
9993  A1$="EDIT31"
9994  A1$[C7]=B0$
9995  CHAIN J,A1$,100
9996  PRINT A1$" is missing.  ERROR"
9997  STOP 
9998  GOTO 9991
9999  END 
