If positionKDL > 0 And positionKDL < Len(chaine) - 2 Then
extrait = Mid(chaine, positionKDL + 3, 1)
Select Case extrait
Case "L", "P": ExtraireLettreApresKDL = extrait
Case ".":
extrait = Mid(chaine, positionKDL + 4, 1)
If extrait = "L" Or extrait = "P" Then ExtraireLettreApresKDL = "." & Mid(chaine, positionKDL + 4, 1)
End Select
Else
ExtraireLettreApresKDL = ""
End If