$CONSOLE
_DEST _CONSOLE

ZCorrection = 36.037
OPEN "6.ngc" FOR INPUT AS 1
OPEN "6o.ngc" FOR OUTPUT AS 2
DO UNTIL EOF(1)
    LINE INPUT #1, a$
    ua$ = UCASE$(a$)
    IF INSTR(ua$, "G53") > 0 THEN
        outa$ = a$
    ELSE
        uai = INSTR(ua$, "ZMIN=")
        IF uai > 0 THEN
            'PRINT "+" + a$
            'Zword = INSTR(a$, z$)
            z0$ = RTRIM$(LEFT$(a$, uai + 4))
            z1$ = MID$(a$, uai + 5)
            z11 = 1
            '            PRINT "zL1 = ";
            IF INSTR("-+1234567890.", MID$(z1$, z11, 1)) > 0 THEN
                DO
                    'z11 = zL1
                    zL1 = INSTR("-+1234567890.", MID$(z1$ + " ", z11, 1))
                    z11 = z11 + 1
                    '                   PRINT zL1,
                LOOP UNTIL zL1 = 0
                '              PRINT
                ZVal = VAL(LEFT$(z1$, z11))
                z2$ = LTRIM$(MID$(z1$, z11 + 1))
                b$ = "(val = " + STR$(ZVal) + " Corrected = " + STR$(INT(ZVal * 1000 + INT(ZCorrection * 1000)) / 1000) + ")"
                PRINT #2, b$
                PRINT b$
                '               PRINT a$
                outa$ = RTRIM$(z0$ + RTRIM$(LTRIM$(STR$(INT(ZVal * 1000 + INT(ZCorrection * 1000)) / 1000))) + " " + z2$)
                '                PRINT outa$
                '                PRINT "====================="
                'SLEEP 1
            END IF

        ELSE

            uai = INSTR(ua$, "Z")
            IF uai > 0 THEN
                'PRINT "+" + a$
                'Zword = INSTR(a$, z$)
                z0$ = RTRIM$(LEFT$(a$, uai))
                z1$ = MID$(a$, uai + 1)
                z11 = 1
                '               PRINT "zL1 = ";
                IF INSTR("-+1234567890.", MID$(z1$, z11, 1)) > 0 THEN
                    DO
                        'z11 = zL1
                        zL1 = INSTR("-+1234567890.", MID$(z1$ + " ", z11, 1))
                        z11 = z11 + 1
                        '                      PRINT zL1,
                    LOOP UNTIL zL1 = 0
                    '                 PRINT
                    ZVal = VAL(LEFT$(z1$, z11))
                    z2$ = LTRIM$(MID$(z1$, z11 + 1))
                    b$ = "(val = " + STR$(ZVal) + " Corrected = " + STR$(INT(ZVal * 1000 + INT(ZCorrection * 1000)) / 1000) + ")"
                    PRINT #2, b$
                    PRINT b$
                    outa$ = RTRIM$(z0$ + RTRIM$(LTRIM$(STR$(INT(ZVal * 1000 + INT(ZCorrection * 1000)) / 1000))) + " " + z2$)
                END IF
            ELSE
                outa$ = a$
            END IF
        END IF
    END IF
    PRINT outa$
    PRINT #2, outa$
LOOP
CLOSE
END