public static string Lex(string description, List <IComposant> jetons)
        {
            Match m = Regex.Match(description, PATRON_DECIMALE);

            while (m.Success)
            {
                string next = m.Value;
                jetons.Add(Double.TryParse(next, out double n) ? new Resistance(n) : FabriqueResistance.FromCode(next));
                m = m.NextMatch();
            }
            return(Regex.Replace(description, PATRON_DECIMALE, "0"));
        }