public void ParseWithSingleMatch()
{
ComplexRule rule = new ComplexRule("TestRule");
TokenRule number = new TokenRule("Number");
number.Pattern = new Regex(@"\d+");
TokenRule word = new TokenRule("Word");
word.Pattern = new Regex("[a-z]+");
rule.Alternations = new Rule[][] { new Rule[] { number, word, number } };
SyntaxTree[] result = rule.Parse("123abc456", 2);
Assert.IsNotNull(result);
Assert.AreEqual(1, result.Length);
Assert.AreEqual("3abc456", result[0].Content);
Assert.AreEqual(2, result[0].Index);
Assert.AreEqual(7, result[0].Length);
Assert.AreEqual("TestRule", result[0].RuleName);
Assert.IsNotNull(result[0].SyntaxTrees);
Assert.AreEqual(3, result[0].SyntaxTrees.Count);
Assert.AreEqual("3", result[0].SyntaxTrees[0].Content);
Assert.AreEqual(2, result[0].SyntaxTrees[0].Index);
Assert.AreEqual(1, result[0].SyntaxTrees[0].Length);
Assert.AreEqual("Number", result[0].SyntaxTrees[0].RuleName);
Assert.IsNull(result[0].SyntaxTrees[0].SyntaxTrees);
Assert.AreEqual("abc", result[0].SyntaxTrees[1].Content);
Assert.AreEqual(3, result[0].SyntaxTrees[1].Index);
Assert.AreEqual(3, result[0].SyntaxTrees[1].Length);
Assert.AreEqual("Word", result[0].SyntaxTrees[1].RuleName);
Assert.IsNull(result[0].SyntaxTrees[1].SyntaxTrees);
Assert.AreEqual("456", result[0].SyntaxTrees[2].Content);
Assert.AreEqual(6, result[0].SyntaxTrees[2].Index);
Assert.AreEqual(3, result[0].SyntaxTrees[2].Length);
Assert.AreEqual("Number", result[0].SyntaxTrees[2].RuleName);
Assert.IsNull(result[0].SyntaxTrees[2].SyntaxTrees);
}
public void ParseWithNoMatch()
{
TokenRule rule = new TokenRule("TestName");
rule.Pattern = new Regex(@"\d+");
SyntaxTree[] result = rule.Parse("123abc", 3);
Assert.IsNotNull(result);
Assert.AreEqual(0, result.Length);
}
public void ParseWithShorterMatch()
{
TokenRule rule = new TokenRule("TestName");
rule.Pattern = new Regex(@"\d+");
SyntaxTree[] result = rule.Parse("123abc", 1);
Assert.IsNotNull(result);
Assert.AreEqual(1, result.Length);
Assert.AreEqual("23", result[0].Content);
Assert.AreEqual(1, result[0].Index);
Assert.AreEqual(2, result[0].Length);
Assert.AreEqual("TestName", result[0].RuleName);
Assert.IsNull(result[0].SyntaxTrees);
}