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$,100
190  GOTO 9998
1000  REMP >>FIND COMMAND<<
1005  IF M5 THEN 1200
1010  PRINT "No lines in WORK file."
1015  GOTO 1190
1020  PRINT "Missing or illegal range list"
1025  GOTO 1190
1030  PRINT "'"L1$"' not found"
1035  GOTO 1190
1040  PRINT "Missing search string"
1045  GOTO 1190
1050  PRINT "'"A1$"' is an illegal position specification."
1055  GOTO 1190
1060  PRINT "Position not found"
1065  GOTO 1190
1070  PRINT "Null search string not permitted"
1075  GOTO 1190
1080  PRINT "Illegal format"
1085  GOTO 1190
1090  PRINT "IN rangelist not permitted here."
1190  GOSUB 9700
1195  RETURN 
1200  REM2 **FIND**
1205  F8=H=C0
1210  DIM L1$[94]
1300  REM2 *FIND SYNTAX*
1302  B1=B2=C0
1304  J=NUM(A$)
1306  IF J#65 THEN 1338
1308  FOR I=C2 TO LEN(A$)
1310  IF A$[I,I]#"L" THEN 1316
1312  NEXT I
1314  GOTO 1040
1316  J=NUM(A$[I])
1318  A1$=A$[C1,I]
1320  IF J#34 AND J#64 THEN 1050
1322  A1$=A$[C1,I-C1]
1324  A$=A$[I]
1326  RESTORE 1328
1328  DATA 1,1,"ALL"
1330  GOSUB 9300
1332  IF  NOT K2 THEN 1050
1334  B1=C1
1336  GOTO 1340
1338  IF J#34 AND J#64 THEN 1800
1340  W1$=A$
1342  V4=C2
1344  GOSUB 9800
1346  IF E THEN 1374
1348  B2=V4
1350  IF LEN(A1$)>G8 THEN 1060
1352  L1$=A1$
1354  IF  NOT LEN(L1$) THEN 1070
1356  IF  NOT LEN(A$) THEN 1376
1358  IF A$[C1,C2]="IN" THEN 1368
1360  IF B1 THEN 1080
1362  A$=W1$
1364  B2=C0
1366  GOTO 1800
1368  A$=A$[C3]
1370  IF  NOT LEN(A$) THEN 1020
1372  GOTO 1400
1374  RETURN 
1376  IF P[C2]=A[C3] THEN 1382
1378  A$="*(*+1)/L"
1380  GOTO 1400
1382  A$="*+1/L"
1400  REM2 *NEXT RANGE*
1405  F4=C2
1410  F2=C0
1415  GOSUB 4400
1420  IF  NOT E THEN 1500
1425  IF E=100 THEN 1460
1430  REM1 -RANGE DONE-
1435  IF  NOT LEN(A$) THEN 1455
1440  IF A$[C1,C1]#"," THEN 1020
1445  A$=A$[C2]
1450  GOTO 1415
1455  IF  NOT F8 AND  NOT B1 THEN 1030
1460  RETURN 
1500  REM2 *SEARCH A RANGE*
1505  B3=C0
1510  V4=B2
1515  A1$=L1$
1520  B4=C0
1525  GOSUB 7600
1530  GOSUB 5300
1535  IF  NOT LEN(W$) THEN 1670
1540  B6=C1
1545  IF L1#B[C1] THEN 1555
1550  B6=B[C3]-A[C2]+C1
1555  B7=LEN(W$)
1560  IF L1#E[C1] THEN 1570
1565  B7=E[C3]-A[C2]+C1 MIN LEN(W$)
1570  B8=C0
1575  GOSUB 5216
1580  IF  NOT F3 THEN 1630
1585  B4=C1
1590  B3=B3+C1
1595  F8=F8+C1
1600  IF F8#C1 THEN 1615
1605  P[C1]=L1
1610  P[C2]=F3
1615  IF  NOT B1 THEN 1635
1620  B6=F3+LEN(A1$)-A[C2]+C1
1625  GOTO 1575
1630  IF  NOT B4 THEN 1670
1635  IF  NOT V7 THEN 1655
1640  GOSUB 1900
1645  IF P[C1]#L1 OR B1 THEN 1655
1650  GOSUB 2000
1655  IF B1 THEN 1670
1660  IF  NOT F8 THEN 1430
1665  RETURN 
1670  IF SYS(C3) THEN 1695
1675  IF L1=E[C1] THEN 1700
1680  GOSUB 7400
1685  IF E THEN 9998
1690  GOTO 1520
1695  RETURN 
1700  IF  NOT B1 THEN 1430
1705  CONVERT B3 TO P0$
1710  PRINT P0$" occurrence";
1715  IF B3=C1 THEN 1725
1720  PRINT "s";
1725  PRINT " of '"L1$"'"
1730  GOTO 1430
1800  REM2 *FIND POSITION*
1805  IF POS(A$,"IN") THEN 1090
1810  F2=C0
1815  F4=C2
1820  GOSUB 4500
1825  IF E THEN 1880
1830  IF LEN(A$) THEN 1080
1835  X1=Q[C1]
1840  X2=Q[C2]
1845  GOSUB 7200
1850  IF E THEN 1060
1855  P[C1]=L1
1860  P[C2]=Q[C3]
1865  IF  NOT V7 THEN 1880
1870  GOSUB 1900
1875  GOSUB 2000
1880  RETURN 
1900  REM2 <DISP LINE>
1905  GOSUB 5300
1910  X7=L1
1915  GOSUB 9900
1920  P0$=V1$
1925  P0$[LEN(P0$)+C1]=" "
1930  W6=LEN(P0$)
1935  P0$[W6+C1]=W$
1940  GOSUB 6400
1945  RETURN 
2000  REM2 <DISP PTR>
2005  B5=P[C2]-A[C2]+C1
2010  P0$=""
2015  P0$[C1,W6]=""
2020  IF B5 <= A[C9]-C5-(A[C1]#C2)*C3 THEN 2030
2025  B5=B5-A[C9]+C5+(A[C1]#C2)*C3
2030  IF B5>A[C9]-C9-(A[C1]#C2)*C3 THEN 2060
2035  P0$[W6,W6+B5-C1]=""
2040  P0$[LEN(P0$)+C1]="^("
2045  CONVERT P[C2] TO P0$[LEN(P0$)+C1]
2050  P0$[LEN(P0$)+C1]=")"
2055  GOTO 2080
2060  P0$[W6,W6+B5-C5]=""
2065  P0$[LEN(P0$)+C1]="("
2070  CONVERT P[C2] TO P0$[LEN(P0$)+C1,LEN(P0$)+C2]
2075  P0$[LEN(P0$)+C1]=")^"
2080  GOSUB 6400
2085  RETURN 
4000  REM <RE E>
4005  X1=E[C1]
4010  X2=E[C2]
4015  IF X1=-C1 AND  NOT X2 THEN 4025
4020  F7=C0
4025  GOSUB 7200
4030  E[C2]=C0
4035  IF  NOT E THEN 4055
4040  IF  NOT L[L2] THEN 4065
4045  E[C2]=C1
4050  E=C0
4055  E[C1]=L[L2]
4060  RETURN 
4065  E=C1
4070  RETURN 
4100  REM <RE B>
4105  X1=B[C1]
4110  X2=B[C2]
4115  IF X1=-C2 AND  NOT X2 THEN 4125
4120  F7=C0
4125  GOSUB 7200
4130  B[C2]=C0
4135  IF  NOT E THEN 4155
4140  GOSUB 7400
4145  IF E THEN 4160
4150  B[C2]=C1
4155  B[C1]=L1
4160  RETURN 
4400  REM <RNG>
4401  F7=C1
4402  G6=P[C1]
4403  G7=P[C2]
4404  IF A$[C1,C1]#"A" THEN 4426
4405  GOSUB 5100
4406  RESTORE 4407
4407  DATA 1,1,"ALL"
4408  GOSUB 9300
4409  IF K2 THEN 4414
4410  PRINT "Illegal range"
4411  GOSUB 9700
4412  E=100
4413  GOTO 4494
4414  B[C1]=-C2
4416  E[C1]=-C1
4418  B[C2]=E[C2]=C0
4420  B[C3]=A[C2]
4422  E[C3]=A[C3]
4424  GOTO 4454
4426  GOSUB 4500
4427  IF E THEN 4498
4428  MAT B=Q
4429  I=NUM(A$)
4430  IF I#47 AND I#58 THEN 4474
4431  GOSUB 4100
4432  IF  NOT E THEN 4440
4433  I=POS(A$,",")
4434  IF I THEN 4437
4435  A$=""
4436  RETURN 
4437  A$=A$[I]
4438  RETURN 
4440  A$=A$[C2]
4441  I=NUM(A$)
4442  IF I#34 AND I#64 THEN 4446
4443  P[C1]=L1
4444  P[C2]=Q[C3]
4446  GOSUB 4500
4448  IF E THEN 4494
4450  MAT E=Q
4452  E[C3]=F5
4454  GOSUB 4000
4456  IF E THEN 4494
4458  X1=B[C1]
4460  X2=C0
4462  GOSUB 7200
4464  IF E THEN 4494
4466  B[C1]=L1
4468  IF B[C1]>E[C1] OR ((B[C1]=E[C1]) AND (B[C3]>E[C3])) THEN 4490
4470  IF E[C3]>A[C3] THEN 4410
4472  GOTO 4494
4474  F7=C0
4476  X1=B[C1]
4478  X2=B[C2]
4480  GOSUB 7200
4482  IF E THEN 4498
4484  B[C1]=E[C1]=L1
4486  E[C3]=F5
4488  GOTO 4470
4490  IF  NOT B[C2] OR  NOT E[C2] THEN 4410
4492  E=C1
4494  P[C1]=G6
4496  P[C2]=G7
4498  RETURN 
4500  REM <POS>
4502  MAT Q=ZER
4504  I=NUM(A$)
4506  IF I=34 OR I=64 THEN 4512
4508  GOSUB 4800
4510  GOTO 4514
4512  IF F2 THEN 4530
4513  GOSUB 4900
4514  IF E THEN 4594
4516  I=NUM(A$)
4518  IF I#43 AND I#45 THEN 4526
4520  GOSUB 4700
4522  IF E THEN 4594
4523  Q[C2]=F1
4524  Q[C3]=A[C2]
4525  F5=A[C3]
4526  IF A$[C1,C1]#"(" THEN 4646
4528  IF  NOT F2 THEN 4534
4530  E=C6
4532  GOTO 4594
4534  X1=Q[C1]
4536  X2=Q[C2]
4538  GOSUB 7200
4540  IF E THEN 4550
4542  Q[C1]=L1
4544  Q[C2]=C0
4546  GOSUB 5300
4548  GOTO 4554
4550  E=C5
4552  GOTO 4594
4554  A$=A$[C2]
4556  I=NUM(A$)
4558  IF I=34 OR I=64 THEN 4566
4562  GOSUB 5500
4564  GOTO 4568
4566  GOSUB 5600
4568  IF E THEN 4594
4570  I=NUM(A$)
4572  IF I#43 AND I#45 THEN 4580
4574  GOSUB 4700
4576  IF E THEN 4594
4578  Q[C3]=Q[C3]+F1
4579  F5=F5+F1
4580  IF Q[C3]<A[C2] OR Q[C3]>A[C3] THEN 4588
4582  IF A$[C1,C1]#")" THEN 4592
4584  A$=A$[C2]
4586  RETURN 
4588  E=C9
4590  GOTO 4594
4592  E=C7
4594  GOTO E OF 4644,4596,4600,4604,4608,4612,4616,4620,4626,4630,4630
4596  PRINT "Missing parameter";
4598  GOTO 4622
4600  PRINT "Illegal line specification"
4602  GOTO 4642
4604  PRINT "Illegal relative specification"
4606  GOTO 4642
4608  PRINT "Position not found"
4610  GOTO 4642
4612  PRINT "Column specification not permitted here."
4614  GOTO 4642
4616  PRINT "Illegal column specification"
4618  GOTO 4642
4620  PRINT "Null string not permitted";
4622  PRINT " in a position specification."
4624  GOTO 4642
4626  PRINT "Column ";Q[C3];"is out of bounds."
4628  GOTO 4642
4630  PRINT "'"A1$"' not found"
4642  GOSUB 9700
4644  E=100
4646  RETURN 
4700  REM <REL SPC>
4704  E=C0
4708  J1=C1
4712  IF A$[C1,C1]="+" THEN 4728
4716  IF Q[C1]=-C2 THEN 4768
4720  J1=-C1
4724  GOTO 4732
4728  IF Q[C1]=-C1 THEN 4768
4732  A$=A$[C2]
4736  GOSUB 5100
4740  IF J=43 OR J=45 THEN 4764
4744  IF  NOT LEN(A1$) THEN 4776
4748  IF POS(A1$,".") THEN 4768
4752  CONVERT A1$ TO F1,5869
4756  F1=F1*J1
4760  RETURN 
4764  A1$=A$[C1,C2]
4768  E=C4
4772  RETURN 
4776  E=C2
4780  RETURN 
4800  REM <REL L>
4805  E=C0
4810  GOSUB 5100
4815  IF J=41 THEN 4885
4820  IF  NOT LEN(A1$) THEN 4875
4825  I=NUM(A1$)
4830  IF I>47 AND I<58 OR I=46 THEN 4845
4835  GOSUB 5000
4840  RETURN 
4845  GOSUB 6000
4850  IF  NOT F1 THEN 4885
4855  Q[C1]=F1
4860  Q[C3]=A[C2]
4865  F5=A[C3]
4870  RETURN 
4875  E=C2
4880  RETURN 
4885  E=C3
4890  RETURN 
4900  REM <STR L>
4903  V4=F4
4906  GOSUB 9800
4909  IF E THEN 4969
4912  IF  NOT LEN(A1$) THEN 4972
4915  IF LEN(A1$)>G8 THEN 4978
4918  X1=X2=C0
4921  GOSUB 7200
4924  IF E THEN 4978
4927  W$=B$[A[C2],A[C3] MIN LEN(B$)]
4930  B6=((P[C2]-A[C2]+C2) MIN LEN(W$)) MAX C1
4933  GOSUB 5208
4936  IF F3 THEN 4957
4939  GOSUB 7400
4942  IF E OR SYS(C3) THEN 4978
4945  GOSUB 7600
4948  GOSUB 5300
4951  GOSUB 5200
4954  IF  NOT F3 THEN 4939
4957  Q[C1]=L1
4960  Q[C3]=F3
4963  F5=F3+LEN(A1$)-C1
4966  E=C0
4969  RETURN 
4972  E=C8
4975  RETURN 
4978  E=D0
4981  RETURN 
5000  REM <*FL>
5005  RESTORE 5010
5010  DATA 3,1,"*",1,"LAST",1,"FIRST"
5015  GOSUB 9300
5020  IF  NOT K2 THEN 5070
5025  Q[C2]=C0
5030  Q[C3]=A[C2]
5035  F5=A[C3]
5040  GOTO K2 OF 5045,5060,5060
5045  Q[C1]=P[C1]
5047  IF D#C7 AND D#C8 THEN 5055
5050  Q[C3]=F5=P[C2]
5055  RETURN 
5060  Q[C1]=-K2+C1
5065  RETURN 
5070  E=C4
5075  RETURN 
5100  REM <+-(),/:>
5110  FOR I=C1 TO LEN(A$)
5120  J=NUM(A$[I,I])
5130  IF J=40 OR J=41 OR (J>42 AND J<46) OR J=47 OR J=58 THEN 5150
5140  NEXT I
5150  A1$=A$[C1,I-C1]
5160  A$=A$[I]
5170  RETURN 
5200  REM <SRCH>
5204  B6=C1
5208  B7=LEN(W$)
5212  B8=C0
5216  IF LEN(W$)<B6 THEN 5288
5220  F3=POS(W$[B6,B7 MIN LEN(W$)],A1$)+B6-C1
5224  IF  NOT (F3-B6+C1) THEN 5288
5228  IF V4=C1 THEN 5256
5232  IF F3=C1 OR (F3=B6 AND  NOT B8) THEN 5244
5236  I=NUM(W$[F3-C1])
5240  IF (I>96 AND I<123) OR (I>64 AND I<91) OR (I>47 AND I<58) THEN 5264
5244  IF F3+LEN(A1$)>LEN(W$) OR (F3+LEN(A1$)>B7 AND  NOT B8) THEN 5256
5248  I=NUM(W$[F3+LEN(A1$)])
5252  IF (I>96 AND I<123) OR (I>64 AND I<91) OR (I>47 AND I<58) THEN 5264
5256  F3=F3+A[C2]-C1
5260  RETURN 
5264  F3=F3+C1
5268  I=POS(W$[F3,B7 MIN LEN(W$)],A1$)
5272  IF  NOT I THEN 5288
5276  F3=F3+I-C1
5280  B8=C1
5284  GOTO 5232
5288  F3=C0
5292  RETURN 
5300  REM <EXT>
5310  IF  NOT LEN(B$) OR LEN(B$)<A[C2] THEN 5340
5315  W$=B$[A[C2],A[C3] MIN LEN(B$)]
5325  FOR I=LEN(W$) TO C1 STEP -C1
5330  IF W$[I,I]#" " THEN 5350
5335  NEXT I
5340  W$=""
5345  RETURN 
5350  W$=W$[C1,I]
5355  RETURN 
5400  REM <*FLLR>
5404  RESTORE 5408
5408  DATA 5,1,"*",2,"LAST",1,"FIRST",2,"LEFT",1,"RIGHT"
5412  GOSUB 9300
5416  GOTO K2 OF 5480,5452,5428,5464,5472
5420  E=C4
5424  RETURN 
5428  IF  NOT LEN(W$) THEN 5464
5432  FOR I=C1 TO LEN(W$)
5436  IF W$[I,I]#" " THEN 5444
5440  NEXT I
5444  Q[C3]=I+A[C2]-C1
5448  GOTO 5484
5452  IF  NOT LEN(W$) THEN 5464
5456  Q[C3]=LEN(W$)+A[C2]-C1
5460  GOTO 5484
5464  Q[C3]=A[C2]
5468  GOTO 5484
5472  Q[C3]=A[C3]
5476  GOTO 5484
5480  Q[C3]=P[C2]
5484  E=C0
5488  RETURN 
5500  REM <REL C>
5505  E=C0
5510  GOSUB 5100
5515  IF J=40 THEN 5575
5520  IF  NOT LEN(A1$) THEN 5565
5525  I=NUM(A1$)
5530  IF I>47 AND I<58 THEN 5545
5535  GOSUB 5400
5540  RETURN 
5545  GOSUB 5700
5550  IF  NOT F1 THEN 5575
5555  Q[C3]=F5=F1
5560  RETURN 
5565  E=C2
5570  RETURN 
5575  E=C7
5580  RETURN 
5600  REM <STR C>
5605  V4=F4
5610  GOSUB 9800
5615  IF E THEN 5670
5620  IF  NOT LEN(A1$) THEN 5665
5625  GOSUB 5200
5630  IF  NOT F3 THEN 5655
5635  Q[C3]=F3
5640  F5=F3+LEN(A1$)-C1
5645  E=C0
5650  RETURN 
5655  E=11
5660  RETURN 
5665  E=C8
5670  RETURN 
5700  REM <C#>
5710  IF  NOT LEN(A1$) OR LEN(A1$)>C2 THEN 5760
5720  CONVERT A1$ TO F1,7083
5730  IF F1<C1 THEN 5760
5740  IF F1>74+20*(A[C1]<C3) THEN 5760
5750  RETURN 
5760  F1=C0
5770  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 F1,7209
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 
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 
7200  REM <FIND LI>
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 <RD PR L>
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 <RD NEXT LI>
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 <RD DIR>
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 <GET B$>
7605  GOTO L2 OF 7610,7620,7630,7640,7650
7610  B$=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 <RD REC>
7710  READ #1,L3;L7,L[C1],L$,L[C2],M$,L[C3],N$,L[C4],O$,L[C5],P$
7720  RETURN 
9300  REM <KEY>
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 
9700  REM <ERROR>
9710  E=C1
9720  Z$=""
9730  IF V2#C2 OR W1 THEN 9760
9740  PRINT "USE file abandoned."
9750  V0=V2=W3=C1
9760  RETURN 
9800  REM <GET NEXT STR>
9805  V0$=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$)]
9885  E=C0
9890  RETURN 
9900  REM <CON LI #>
9903  V1$="    "
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$[J1+C1,C7]=""
9972  RETURN 
9990  REM <ERR>
9991  M4=SYS(C0)
9992  N4=SYS(C1)
9993  A1$="EDIT31"
9994  A1$[C7]=B0$
9995  CHAIN J,A1$,100
9996  PRINT A1$" is missing.  ERROR"
9997  STOP 
9998  GOTO 9991
9999  END 
