RosettaCodeData/Task/Soundex/ANSI-BASIC/soundex.basic

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100 DECLARE EXTERNAL FUNCTION FNSoundex$
110
120 DATA Ashcraft, Ashcroft, Gauss, Ghosh, Hilbert, Heilbronn, Lee, Lloyd
130 DATA Moses, Pfister, Robert, Rupert, Rubin, Tymczak, Soundex, Example
140 FOR i = 1 TO 16
150 READ name$
160 PRINT """"; name$; """"; TAB(15); FNsoundex$(name$)
170 NEXT i
180 END
190
200 EXTERNAL FUNCTION FNsoundex$(name$)
210 LET name$ = UCASE$(name$)
220 LET n$ = "01230129022455012623019202"
230 LET s$ = name$(1:1)
240 LET p = VAL(n$(ORD(s$) - 64 : ORD(s$) - 64))
250 FOR i = 2 TO LEN(name$)
260 LET n = VAL(n$(ORD(name$(i:i)) - 64: ORD(name$(i:i)) - 64))
270 IF n <> 0 AND n <> 9 AND n <> p THEN LET s$ = s$ & STR$(n)
280 IF n <> 9 THEN LET p = n
290 NEXT i
300 LET s$ = s$ & "000"
310 LET FNSoundex$ = s$(1:4)
320 END FUNCTION