QUOTED PRINTABLE VERSION AMÉLIORÉ

'mettre ca dans une module
Friend Function QuotePrintNew(ByVal brute As String, ByVal charset As String) As String
        Dim resul As String = ""
        Dim deco As System.Text.Encoding
        Try
            deco = System.Text.Encoding.GetEncoding(charset)
        Catch ex As Exception

            deco = System.Text.Encoding.GetEncoding("iso-8859-1")
        End Try

        If deco.IsSingleByte Then 'ce tupe de codage se fait -il sur 1 ou 2 bytes
            resul = LookForSimple(deco, brute) 'codage sur un byte ex blabla=57 veut dire blabla & chr(57) 
                                               'mais le résultat dépend du type de codage
        Else
            resul = LookForDouble(deco, brute) 'codage sur 2 bytes blabla=57=87
        End If



        Return resul
    End Function

Private Function LookForDouble(ByVal deco As System.Text.Encoding, ByVal brute As String) As String
        Dim i As Integer = 1
        Dim j As Integer = 0
        Dim temp As New System.Text.StringBuilder
        Dim ch As Char
        Dim table(1) As Byte
        Try
            Do While i <= brute.Length
                ch = Mid(brute, i, 1)
                If ch <> "=" Then
                    temp.Append(ch)
                    i += 1
                Else
                    If Mid(brute, i + 1, 2) <> vbCrLf Then
                        table(0) = CByte("&H" & Mid(brute, i + 1, 2))
                        i += 3
                        If Mid(brute, i, 1) = "=" Then
                            If Mid(brute, i + 1, 2) <> vbCrLf Then
                                table(1) = CByte("&H" & Mid(brute, i + 1, 2))
                                i += 3
                            Else
                                table(1) = CByte("&H" & Mid(brute, i + 4, 2))
                                i += 6
                            End If
                        End If
                        temp.Append(deco.GetString(table))
                    Else
                        temp.Append(vbCrLf)
                        i += 3
                    End If


                End If
            Loop
        Catch ex As Exception
           
        End Try
        Return temp.ToString
    End Function

Friend Function LookForSimple(ByVal deco As System.Text.Encoding, ByVal brute As String) As String
        Dim i As Integer = 1
        Dim temp As New System.Text.StringBuilder
        Dim ch As Char
        Dim table(0) As Byte
        Do While i <= brute.Length
            ch = Mid(brute, i, 1)
            If ch <> "=" Then
                temp.Append(ch)
                i += 1
            Else
                If Mid(brute, i + 1, 2) = vbCrLf Then
                    temp.Append(vbCrLf)
                    i += 3
                Else
                    table(0) = CByte("&H" & Mid(brute, i + 1, 2))
                    temp.Append(deco.GetString(table))
                    i += 3
                End If
            End If
        Loop
        Return temp.ToString
    End Function