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7/29/2019 Funcin de nmeros a letras en VFP9.docx
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Funcin de nmeros a letras en VFP9
*******************
Function ConvertCurrencyToEnglish( _
ByVal Number As Variant, _
ByVal CurrentMoney As Variant _
) As String
Dim s As String
Dim Temp As String
Dim IntPart As String
Dim Cents As String
Dim DecimalPlace, Count
ReDim Place(9) As String
Place(2) = " Thousand "
Place(3) = " Million "
Place(4) = " Billion "
Place(5) = " Trillion "
'//Convert s to a string, trimming extra spaces.
s = Format(Val(Number), "0.00")
DecimalPlace = InStr(s, Dot)
'//If we find decimal place...
If DecimalPlace > 0 Then
'//Convert cents
Temp = Left$(Mid$(s, DecimalPlace + 1) & "00", 2)
Cents = ConvertTens(Temp)
'//Strip off cents from remainder to convert.
s = Trim$(Left$(s, DecimalPlace - 1))
End If
Count = 1
Do Until s = Void
'//Convert last 3 digits of s to English IntPart.
Temp = ConvertHundreds(Right$(s, 3))
If Len(Temp) Then IntPart = Temp & Place(Count) & IntPart
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If Len(s) > 3 Then
'//Remove last 3 converted digits from s.
s = Left$(s, Len(s) - 3)
Else
s = Void
End If
Count = Count + 1
Loop
'//Clean up IntPart.
Select Case IntPart
Case Void
IntPart = "No " & CurrentMoney
Case "One"
IntPart = "One " & Singular(CStr(CurrentMoney))
Case Else
IntPart = IntPart & " " & CurrentMoney
End Select
'//Clean up cents.
Select Case Cents
Case Void
Cents = " And No Cents"
Case "One"
Cents = " And One Cent"
Case Else
Cents = " And " & Cents & " Cents"
End Select
ConvertCurrencyToEnglish = IntPart & Cents
End Function
Private Function ConvertHundreds(ByVal MyNumber As Variant) As String
Dim rtn As String
'//Exit if there is nothing to convert.
If Val(MyNumber) = 0 Then Exit Function
'//Append leading zeros to number.
MyNumber = Right$("000" & MyNumber, 3)
'//Do we have a hundreds place digit to convert?
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If Not Left$(MyNumber, 1) = "0" Then
rtn = ConvertDigit(Left$(MyNumber, 1)) & " Hundred "
End If
'//Do we have a tens place digit to convert?
If Not Mid$(MyNumber, 2, 1) = "0" Then
rtn = rtn & ConvertTens(Mid$(MyNumber, 2))
Else
'//If not, then convert the ones place digit.
rtn = rtn & ConvertDigit(Mid$(MyNumber, 3))
End If
ConvertHundreds = Trim$(rtn)
End Function
Private Function ConvertTens(ByVal MyTens As Variant) As String
Dim rtn As String
'//Is value between 10 and 19?
If Val(Left$(MyTens, 1)) = 1 Then
Select Case Val(MyTens)
Case 10: rtn = "Ten"
Case 11: rtn = "Eleven"
Case 12: rtn = "Twelve"
Case 13: rtn = "Thirteen"
Case 14: rtn = "Fourteen"
Case 15: rtn = "Fifteen"
Case 16: rtn = "Sixteen"
Case 17: rtn = "Seventeen"
Case 18: rtn = "Eighteen"
Case 19: rtn = "Nineteen"
Case Else
End Select
Else
'//.. otherwise it's between 20 and 99.
Select Case Val(Left$(MyTens, 1))
Case 2: rtn = "Twenty "
Case 3: rtn = "Thirty "
Case 4: rtn = "Forty "
Case 5: rtn = "Fifty "
Case 6: rtn = "Sixty "
Case 7: rtn = "Seventy "
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Case 8: rtn = "Eighty "
Case 9: rtn = "Ninety "
Case Else
End Select
'//Convert ones place digit.
rtn = rtn & ConvertDigit(Right$(MyTens, 1))
End If
ConvertTens = rtn
End Function
Private Function ConvertDigit(ByVal MyDigit As Variant) As String
Select Case Val(MyDigit)
Case 1: ConvertDigit = "One"
Case 2: ConvertDigit = "Two"
Case 3: ConvertDigit = "Three"
Case 4: ConvertDigit = "Four"
Case 5: ConvertDigit = "Five"
Case 6: ConvertDigit = "Six"
Case 7: ConvertDigit = "Seven"
Case 8: ConvertDigit = "Eight"
Case 9: ConvertDigit = "Nine"
Case Else: ConvertDigit = Void
End Select
End Function
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cesarpech@sji.com.mx
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