by Keith Bauer (1 Submission)
Category: Math/Dates
Compatability: Visual Basic 4.0 (32-bit)
Difficulty: Unknown Difficulty
Originally Published: Sat 3rd July 1999
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Convert an integer number to text. For example, convert 13 to Thirteen. Converts numbers from 0 to 9999999.
VBcoders
Function English(ByVal N As Long) As String
Const Thousand = 1000&
Const Million = Thousand * Thousand
Const Billion = Thousand * Million
'Const Trillion = Thousand * Billion
Dim Buf As String: Buf = ""
If (N = 0) Then English = "zero": Exit Function
If (N < 0) Then Buf = "negative ": N = -N
If (N >= Billion) Then
Buf = Buf & EnglishDigitGroup(N \ Billion) & " billion"
N = N Mod Billion
If (N) Then Buf = Buf & " "
End If
If (N >= Million) Then
Buf = Buf & EnglishDigitGroup(N \ Million) & " million"
N = N Mod Million
If (N) Then Buf = Buf & " "
End If
If (N >= Thousand) Then
Buf = Buf & EnglishDigitGroup(N \ Thousand) & " thousand"
N = N Mod Thousand
If (N) Then Buf = Buf & " "
End If
If (N > 0) Then
Buf = Buf & EnglishDigitGroup(N)
End If
English = Buf
End Function
' Support function to be used only by English()
Private Function EnglishDigitGroup(ByVal N As Integer) As String
Const Hundred = " hundred"
Const One = "one"
Const Two = "two"
Const Three = "three"
Const Four = "four"
Const Five = "five"
Const Six = "six"
Const Seven = "seven"
Const Eight = "eight"
Const Nine = "nine"
Dim Buf As String: Buf = ""
Dim Flag As Integer: Flag = False
'Do hundreds
Select Case (N \ 100)
Case 0: Buf = "": Flag = False
Case 1: Buf = One & Hundred: Flag = True
Case 2: Buf = Two & Hundred: Flag = True
Case 3: Buf = Three & Hundred: Flag = True
Case 4: Buf = Four & Hundred: Flag = True
Case 5: Buf = Five & Hundred: Flag = True
Case 6: Buf = Six & Hundred: Flag = True
Case 7: Buf = Seven & Hundred: Flag = True
Case 8: Buf = Eight & Hundred: Flag = True
Case 9: Buf = Nine & Hundred: Flag = True
End Select
If (Flag) Then N = N Mod 100
If (N) Then
If (Flag) Then Buf = Buf & " "
Else
EnglishDigitGroup = Buf
Exit Function
End If
'Do tens (except teens)
Select Case (N \ 10)
Case 0, 1: Flag = False
Case 2: Buf = Buf & "twenty": Flag = True
Case 3: Buf = Buf & "thirty": Flag = True
Case 4: Buf = Buf & "forty": Flag = True
Case 5: Buf = Buf & "fifty": Flag = True
Case 6: Buf = Buf & "sixty": Flag = True
Case 7: Buf = Buf & "seventy": Flag = True
Case 8: Buf = Buf & "eighty": Flag = True
Case 9: Buf = Buf & "ninety": Flag = True
End Select
If (Flag) Then N = N Mod 10
If (N) Then
If (Flag) Then Buf = Buf & "-"
Else
EnglishDigitGroup = Buf
Exit Function
End If
'Do ones and teens
Select Case (N)
Case 0: ' do nothing
Case 1: Buf = Buf & One
Case 2: Buf = Buf & Two
Case 3: Buf = Buf & Three
Case 4: Buf = Buf & Four
Case 5: Buf = Buf & Five
Case 6: Buf = Buf & Six
Case 7: Buf = Buf & Seven
Case 8: Buf = Buf & Eight
Case 9: Buf = Buf & Nine
Case 10: Buf = Buf & "ten"
Case 11: Buf = Buf & "eleven"
Case 12: Buf = Buf & "twelve"
Case 13: Buf = Buf & "thirteen"
Case 14: Buf = Buf & "fourteen"
Case 15: Buf = Buf & "fifteen"
Case 16: Buf = Buf & "sixteen"
Case 17: Buf = Buf & "seventeen"
Case 18: Buf = Buf & "eighteen"
Case 19: Buf = Buf & "nineteen"
End Select
EnglishDigitGroup = Buf
End Function
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