S-C Macro Assembler 3.0 -- ASM2/X.FIND.AND.REP
1000 *SAVE X.FIND.AND.REP
1010 *--------------------------------
1020 * FIND AND LIST COMMANDS
1030 *--------------------------------
1040 LIST
1050 FIND JSR GET.KEY.STRING
1060 JSR PARSE.LINE.RANGE
1070 JSR HANDLE.REPLACE.OPTIONS
1080 .1 JSR GET.LINE.TO.WBUF
1090 BCC .2
1100 RTS
1110 .2 JSR FIND.KEY.IN.WBUF
1120 BCC .1 KEY NOT IN WBUF
1130 LDA A1L SET UP POINTER FOR LIST
1140 LDX A1H
1150 JSR LIST.LINE.AX
1160 JMP .1
1170 *--------------------------------
1180 * PARSE INTO FREE MEMORY
1190 *--------------------------------
1200 GET.KEY.STRING
1210 LDA #KBUF
1220 STA KEY.ADDR
1230 LDA /KBUF
1240 STA KEY.ADDR+1
1250 GET.KEY2
1260 JSR GNNB GET NEXT NON-BLANK
1270 STA DLIM FOR DELIMITER
1280 BCS .4 EOL
1290 CMP #',
1300 BEQ .4 COMMA
1310 CMP #'. PERIOD
1320 BEQ .4
1330 EOR #$30
1340 CMP #10
1350 BCC .4 DIGIT
1360 LDY #0
1370 .1 STY PNTR
1380 JSR GNC MOVE STRING
1390 BCS .2 END OF LINE
1400 CMP DLIM
1410 BEQ .2 END OF STRING
1420 LDY PNTR
1430 STA (KEY.ADDR),Y
1440 INY
1450 CPY #39 SEE IF STRING FITS
1460 BCC .1 YES, KEEP GOING
1470 LDY #QSTRLNG NO, STRING TOO LONG
1480 JMP HARD.ERROR
1490 .2 LDY PNTR
1500 LDA #0
1510 STA (KEY.ADDR),Y
1520 SEC WE FOUND IT
1530 RTS
1540 .4 LDA #0
1550 STA PNTR
1560 CLC DIDN'T FIND IT
1570 JMP BACKUP.CHAR.PNTR
1580 .PG
1590 *--------------------------------
1600 * GET NEXT LINE INTO WBUF
1610 * RETURN CARRY CLEAR IF SUCCESSFUL
1620 * CARRY SET IF BEYOND
1630 * X = LENGTH OF LINE
1640 *--------------------------------
1650 GET.LINE.TO.WBUF
1660 LDA SRCP
1670 STA A1L SAVE POINTER FOR LIST
1680 LDA SRCP+1
1690 STA A1H
1700 JSR CMP.SRCP.ENDP END OF RANGE YET?
1710 BCS .2 ...YES, FINISHED
1720 JSR GET.LINE.NUMBER
1730 LDY #0 START AT BEGINNING OF WBUF
1740 JSR CONVERT.LINE.NUMBER.STORE PUT CONVERTED # AT WBUF,Y
1750 LDA #$A0 APPEND A SPACE AFTER LINE NUMBER
1760 STA WBUF,Y
1770 INY
1780 TYA
1790 TAX
1800 .1 JSR NTKN BYTE FROM PROGRAM
1810 STA WBUF,X
1820 INX
1830 TAY TEST CHAR
1840 BNE .1 END OF LINE
1850 CLC FLAG SUCCESSFUL
1860 .2 RTS
1870 *--------------------------------
1880 * LIST LINE POINTED TO BY
1890 *--------------------------------
1900 LIST.LINE.AX
1910 STA SRCP
1920 STX SRCP+1
1930 *--------------------------------
1940 LIST.CURRENT.LINE
1950 JSR CRLF PRINT CARRIAGE RETURN
1960 JSR SPC SPACE
1970 LDA PROMPT.FLAG
1980 BEQ .1 ...NO SPACE SINCE NOT "H"
1990 JSR SPC
2000 .1 JSR GET.LINE.NUMBER BODY
2010 JSR CONVERT.LINE.NUMBER.PRINT
2020 LDA #$20 SPACE
2030 .2 JSR CHO PRINT CHAR
2040 JSR GET.NEXT.SOURCE.CHAR
2050 BNE .2 NOT END YET
2060 RTS FINISHED
2070 .PG
2080 *--------------------------------
2090 * FIND KEY IN WBUF
2100 * RETURN WITH CARRY CLEAR IF NO MATCH.
2110 * RETURN WITH CARRY SET IF MATCH, AND WITH
2120 * (PNTR) = INDEX OF START OF MATCH
2130 * (X) = INDEX OF LAST CHAR MATCHED + 1
2140 *--------------------------------
2150 FIND.KEY.IN.WBUF
2160 JSR FIND.START.OF.LINE.IN.WBUF
2170 LDA PNTR
2180 BNE .1 NON-NULL KEY STRING
2190 LDA DLIM If delimiter is slash, list
2200 CMP #'/' only major labels
2210 BEQ .3 ...it is
2220 SEC ...no string, so SIGNAL MATCH
2230 RTS
2240 .3 LDA WBUF,X GET FIRST CHAR
2250 JSR ELIMINATE.CASE
2260 JMP CHECK.LETTER
2270 .1 LDY #39 MAP SEARCH KEY INTO UPPER CASE
2280 .2 LDA (KEY.ADDR),Y ...IF LC.FLAG IS ON
2290 JSR ELIMINATE.CASE.MAYBE
2300 STA (KEY.ADDR),Y
2310 DEY
2320 BPL .2
2330 FIND.KEY.IN.WBUF2
2340 LDY #0 START AT FIRST CHAR OF KEY
2350 .1 STY KEY.PNTR CURRENT STARTING POINT IN KEY
2360 .2 STX BUF.PNTR CURRENT STARTING POINT IN BUFFER
2370 .3 LDA (KEY.ADDR),Y NEXT CHAR FROM KEY
2380 BEQ .6 END OF KEY, IT MATCHES
2390 CMP WILD.CARD NORMALLY CONTROL-W
2400 BEQ .8 YES
2410 LDA WBUF,X NEXT CHAR FROM BUFFER
2420 BEQ .5 END OF BUFFER, DID NOT MATCH
2430 JSR ELIMINATE.CASE.MAYBE MAP INTO UPPER CASE IS NEEDED
2440 CMP (KEY.ADDR),Y COMPARE WITH KEY CHAR
2450 BNE .4 NO MATCH
2460 INY ADVANCE KEY POINTER
2470 INX ADVANCE BUFFER POINTER
2480 BNE .3 ...ALWAYS
2490 *--------------------------------
2500 .4 LDY KEY.PNTR TRY AGAIN FURTHER INTO BUFFER
2510 LDX BUF.PNTR
2520 INX
2530 BNE .2 ...ALWAYS
2540 *--------------------------------
2550 .5 LDA $C000
2560 CMP #$8D ALLOW 'ABORT' WITH
2570 BEQ .11
2580 CLC SIGNAL NO MATCH
2590 RTS
2600 *--------------------------------
2610 .6 LDA KEY.PNTR SEE IF IN FIRST SEGMENT OF KEY
2620 BNE .7 NO
2630 LDA BUF.PNTR YES
2640 STA PNTR
2650 .7 SEC SIGNAL MATCH
2660 RTS
2670 *--------------------------------
2680 .8 LDA KEY.PNTR SEE IF IN FIRST SEGMENT OF KEY
2690 BNE .9 NO
2700 LDA BUF.PNTR YES
2710 STA PNTR
2720 .9 INY ADVANCE KEY POINTER
2730 LDA (KEY.ADDR),Y PEEK AT NEXT CHAR OF KEY
2740 BNE .1 NOT AT END YET
2750 .10 LDA WBUF,X AT END, SO SCAN TO END OF BUFFER
2760 BEQ .6 FOUND END, AND ALL MATCHES
2770 INX ADVANCE BUFFER POINTER
2780 BNE .10 ...ALWAYS
2790 *--------------------------------
2800 .11 JMP SOFT HE ABORTED
2810 *--------------------------------
2820 * REPLACE COMMAND
2830 *--------------------------------
2840 REPLACE
2850 JSR GET.KEY.STRING
2860 BCC R.ERR1 (SYN ERROR)
2870 LDA PNTR NULL SEARCH FAILS
2880 BEQ R.ERR1
2890 JSR BACKUP.CHAR.PNTR USE DELIMITER OVER AGAIN
2900 LDA #KBUF+40
2910 STA KEY.ADDR
2920 LDA /KBUF+40
2930 STA KEY.ADDR+1 SET UP CALL
2940 JSR GET.KEY2
2950 BCC R.ERR1 (SYN ERROR)
2960 STY REPLACE.LENGTH
2970 JSR PARSE.LINE.RANGE
2980 JSR HANDLE.REPLACE.OPTIONS
2990 LDA #KBUF FOR SEARCH
3000 STA KEY.ADDR
3010 LDA /KBUF
3020 STA KEY.ADDR+1
3030 LDA #1
3040 STA PNTR PNTR MUST BE > 0 FOR SEARCH
3050 .1 JSR GET.LINE.TO.WBUF
3060 BCS .5 FINISHED
3070 STX WBUF.LENGTH
3080 JSR FIND.KEY.IN.WBUF
3090 BCC .1
3100 LDA #0
3110 STA CHANGE.CNT (DEF IS EQ)
3120 .2 TXA COMPUTE # CHARS IN TARGET FIELD
3130 SEC
3140 SBC PNTR
3150 STA SOURCE.LENGTH
3160 STX MATCH.END
3170 JSR REPLACE.REPLACE
3180 BCS .5 NEITHER "Y" NOR "N"
3190 BNE .3 THEY HIT 'N'
3200 INC CHANGE.CNT
3210 LDX MATCH.END
3220 BNE .4 ...ALWAYS
3230 .3 LDX PNTR MATCH BEGINNING
3240 INX +1
3250 .4 JSR FIND.KEY.IN.WBUF2
3260 BCS .2 LOOP IF ANOTHER
3270 LDA CHANGE.CNT ANY CHANGES?
3280 BEQ .1 NO - TRY NEXT LINE
3290 JSR NML PUT LINE BACK
3300 LDA WBUF If replacement line was null,
3310 BEQ .6 then just lshow line number
3320 LDA LINE.END AND LIST
3330 LDX LINE.END+1
3340 JSR LIST.LINE.AX
3350 JMP .1 TRY NEXT LINE
3360 .5 RTS FINISHED
3370 .6 LDA WBUF+1
3380 STA CURRENT.LINE.NUMBER
3390 LDA WBUF+2
3400 STA CURRENT.LINE.NUMBER+1
3410 JSR CRLF
3420 JSR CONVERT.LINE.NUMBER.PRINT
3430 JMP .1
3440 *--------------------------------
3450 R.ERR1 JMP SYNX MISSING STRING
3460 R.ERR2 LDY #QREPLNG REP STRNG TOO LONG
3470 JMP HARD.ERROR
3480 .PG
3490 *--------------------------------
3500 * A MATCH IS FOUND, MAYBE REPLACE
3510 * RETURNS: CARRY ZERO
3520 * Q CS NE QUIT
3530 * N CC NE NO CHG
3540 * Y CC EQ CHANGE MADE
3550 *--------------------------------
3560 REPLACE.REPLACE
3570 LDA AUTO.FLAG
3580 BMI .40 - = AUTO MODE, + = VERIFY MODE
3590 JSR PRINT.AND.PROMPT
3600 BNE .99 Q,N EXITS
3610 .40 SEC
3620 LDA REPLACE.LENGTH
3630 SBC SOURCE.LENGTH
3640 BCC .60 (IF SHORTER)
3650 BEQ .50 (IF EQUAL )
3660 *--------------------------------
3670 * REPLACE IS LONGER - MAKE SPACE
3680 * ACC IS REP.LEN-SRC.LEN
3690 *--------------------------------
3700 CLC
3710 ADC WBUF.LENGTH
3720 BCS .45 OVER 256 LEN
3730 CMP #WBUF.MAX
3740 BCC .51
3750 .45 JMP R.ERR2 TOO LONG ERR
3760 .51 TAX
3770 LDY WBUF.LENGTH
3780 STX WBUF.LENGTH (RESET IT)
3790 .52 LDA WBUF,Y
3800 STA WBUF,X
3810 DEX
3820 DEY
3830 CPY MATCH.END
3840 BCS .52
3850 INX
3860 STX MATCH.END
3870 *--------------------------------
3880 * MOVE STRING INTO GAP
3890 *--------------------------------
3900 .50 LDX PNTR MOVE REPLACEMENT STRING INTO GAP
3910 LDY #0 POINT AT REPLACEMENT STRING
3920 .55 LDA KBUF+40,Y NEXT CHAR FROM REP. STRING
3930 BEQ .57 END OF REP. STRING
3940 STA WBUF,X STORE IN GAP
3950 INX
3960 INY
3970 BNE .55 ...ALWAYS
3980 .57 CLC SIGNAL SUCCESS
3990 LDA #0 (CC,EQ)
4000 .99 RTS
4010 *--------------------------------
4020 * REPLACE IS SHORTER - REMOVE EXTRA
4030 *--------------------------------
4040 .60 LDA PNTR
4050 ADC REPLACE.LENGTH
4060 TAX
4070 LDY MATCH.END
4080 STX MATCH.END (RESET IT)
4090 .1 LDA WBUF,Y
4100 STA WBUF,X
4110 INY
4120 INX
4130 CPX WBUF.LENGTH
4140 BCC .1
4150 STX WBUF.LENGTH (RESET THIS TOO)
4160 BCS .50 ...ALWAYS
4170 .PG
4180 *--------------------------------
4190 * PRINT LINE AND GET Y,N,Q
4200 * RETURNS: CARRY ZERO
4210 * Q CS NE
4220 * N CC NE
4230 * Y CS EQ
4240 *--------------------------------
4250 PRINT.AND.PROMPT
4260 JSR P.RETURN PRINT
4270 LDX #0
4280 .1 LDA WBUF,X
4290 BEQ .4 EOL?
4300 ORA #$80
4310 CMP #$A0 SKIP CONTROL
4320 BCC .3
4330 CPX PNTR
4340 BCC .2
4350 CPX MATCH.END
4360 BCS .2
4370 JSR ELIMINATE.CASE
4380 AND #$3F ...DISPLAY IN INVERSE
4390 .2 JSR IO.COUT
4400 .3 INX
4410 BNE .1 NEXT CHAR
4420 .4 JSR MON.CLREOL
4430 LDY #QREPPRMT PRINT "REPLACE? "
4440 YES.OR.NO
4450 JSR QT.OUT
4460 JSR READ.KEY.WITH.CASE
4470 CMP #$A0 CONTROL CHAR?
4480 BCC .2 ...YES, DO NOT ECHO
4490 JSR MY.COUT
4500 AND #$DF NOW IGNORE CASE
4510 .2 CMP #'N+$80 NO: RETURN CC, NE
4520 BEQ .1 ..."N"
4530 CMP #'Y+$80 YES: RETURN CS, EQ
4540 SEC NEITHER: CS, NE
4550 RTS
4560 .1 LSR WAS = N = $CE, SO CLEAR CARRY, SET NE
4570 RTS
4580 *--------------------------------
4590 * SET FLAGS FROM CHAR IN ACC
4600 * CHAR FLAG MEANING
4610 * "A" AUTO.FLAG +=VERIFY, -=AUTO
4620 * "U" LC.FLAG +=AS TYPED, -=ACCEPT EITHER CASE
4630 *
4640 * RETURN CS -> VALID OPTION
4650 * CC -> NOT AN OPTION
4660 *--------------------------------
4670 HANDLE.REPLACE.OPTIONS
4680 LSR AUTO.FLAG +=VERIFY MODE
4690 LSR LC.FLAG +=CASE AS TYPED
4700 .1 JSR GNNB GET NEXT BYTE FROM INPUT LINE
4710 BCS .3 END OF LINE
4720 JSR ELIMINATE.CASE MAP LOWER TO UPPER
4730 CMP #'A AUTO MODE?
4740 BNE .2 NO
4750 ROR AUTO.FLAG YES, SET SIGN BIT FROM CARRY
4760 .2 CMP #'U ACCEPT BOTH CASES?
4770 BNE .1 NO
4780 ROR LC.FLAG YES, SET SIGN BIT FROM CARRY
4790 BNE .1 ...ALWAYS
4800 .3 RTS
4810 *--------------------------------
4820 * MAP LOWER CASE INTO UPPER CASE
4830 *--------------------------------
4840 ELIMINATE.CASE.MAYBE
4850 BIT LC.FLAG
4860 BPL LCUC3 DON'T DO IT
4870 ELIMINATE.CASE
4880 PHA SAVE ORIGINAL CHAR
4890 ORA #$80 MAKE CANONICAL FORM
4900 CMP #$E0 IN LOWER CASE REGION?
4910 PLA RESTORE ORIGINAL CHAR
4920 BCC LCUC3 ...NOT LOWER CASE REGION
4930 AND #$DF ...LC, MAP TO UPPER CASE
4940 LCUC3 RTS
4950 *--------------------------------
4960 * LOAD CURRENT LINE NUMBER FROM SRCP
4970 *--------------------------------
4980 GET.LINE.NUMBER
4990 JSR GNB SKIP LENGTH
5000 JSR GNB GET LINE NUMBER
5010 STA CURRENT.LINE.NUMBER
5020 JSR GNB
5030 STA CURRENT.LINE.NUMBER+1
5040 RTS
5050 *--------------------------------
