Sub colorieAntécédants()
couleurs = Array(3, 4, 6, 7, 8, 15, 17, 20, 22, 24, 26, 27, 28, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 45, 46, 50, 53)
coul = 1
For Each c In Cells.SpecialCells(xlCellTypeFormulas, 23)
expression = Mid(c.Formula, 2)
tmp = Replace(Replace(expression, "(", ""), ")", "")
tmp2 = Replace(Replace(Replace(Replace(tmp, "+", "|"), "*", "|"), "-", "|"), "/", "|")
a = Split(tmp2, "|")
For i = 0 To UBound(a)
On Error Resume Next
Range(a(i)).Interior.ColorIndex = couleurs(coul)
On Error GoTo 0
Next i
c.Interior.ColorIndex = couleurs(coul)
coul = coul + 1
Next c
End Sub