Tools.YyLexer.UsingCat C# (CSharp) Method

        public Charset UsingCat(UnicodeCategory cat)
        {
            if (cat==m_gencat)
            {
                for (int j=0;j<28;j++)
                {
                    if (!Enum.IsDefined(typeof(UnicodeCategory),j))
                        continue;
                    UnicodeCategory u = (UnicodeCategory)j;
                    if (u==UnicodeCategory.Surrogate)
                        continue;
                    if (cats[u]==null)
                    {
                        UsingCat(u);
                        m_gencat = u;
                    }
                }
                return (Charset)cats[cat];
            }
            if (cats[cat]!=null)
                return (Charset)cats[cat];
            Charset rv = new Charset(cat);
            cats[cat] = rv;
            return rv;
        }