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Tip of the Day
Language: VB7
Expertise: beginner
Apr 20, 2002

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ExplodeString - Add a filling char between a string's chars

' "Explode" a string by inserting a given filling character
' between consecutive characters in the original string
'
' The source string cannot contain Chr$(0) characters

Function ExplodeString(ByVal Source As String, Optional ByVal fillChar As Char = _
    " "c) As String
    Dim i As Integer
    Dim sb As New Text.StringBuilder(Source.Length * 2)

    ' exit if no character
    If Source Is Nothing OrElse Source.Length = 0 Then Return ""

    ' inserts the first char 
    sb.Append(Source.Chars(0))
    ' insert the filling char before each character
    For i = 1 To Source.Length - 1
        sb.Append(fillChar)
        sb.Append(Source.Chars(i))
    Next

    Return sb.ToString

End Function
Francesco Balena
 
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