private void CheckTok(QuotedStringTokenizer tok, bool delim, bool quotes)
        {
            Assert.IsTrue(tok.HasMoreElements());
            Assert.IsTrue(tok.hasMoreTokens());
            Assert.AreEqual("abc", tok.NextToken());
            if (delim) Assert.AreEqual(",", tok.NextToken());
            if (delim) Assert.AreEqual(" ", tok.NextToken());

            Assert.AreEqual(quotes ? "\"d\\\"'\"" : "d\"'", tok.NextElement());
            if (delim) Assert.AreEqual(",", tok.NextToken());
            Assert.AreEqual(quotes ? "'p\\',y'" : "p',y", tok.NextToken());
            if (delim) Assert.AreEqual(" ", tok.NextToken());
            Assert.AreEqual("z", tok.NextToken());
            Assert.IsFalse(tok.hasMoreTokens());
        }