public void NoMatchMatch()
{
Rule d = Rule.AssignParser(null, Prims.Digit);
AlternativeParser rp = d | d | d;
IScanner scan = Provider.Scanner;
ParserMatch m = rp.Parse(scan);
Assert.IsTrue(!m.Success);
Assert.AreEqual(scan.Offset, 0);
}
public void NoMatchMatch()
{
Rule d = new Rule("digit", Prims.Digit);
AlternativeParser rp = d | d | d;
IScanner scan = Provider.NewScanner;
ParserMatch m = rp.Parse(scan);
Assert.IsFalse(m.Success);
Assert.AreEqual(0, scan.Offset);
}
public void ThirdMatch()
{
Rule d = Rule.AssignParser(null, Prims.Digit);
Rule l = Rule.AssignParser(null, Prims.Letter);
AlternativeParser rp = d | d | l;
IScanner scan = Provider.Scanner;
ParserMatch m = rp.Parse(scan);
Assert.IsTrue(m.Success);
Assert.AreEqual(m.Length, 1);
Assert.AreEqual(scan.Offset, 1);
}
public void ThirdMatch()
{
Rule d = new Rule("digit", Prims.Digit);
Rule l = new Rule("letter", Prims.Letter);
AlternativeParser rp = d | d | l;
IScanner scan = Provider.NewScanner;
ParserMatch m = rp.Parse(scan);
Assert.IsTrue(m.Success);
Assert.AreEqual(1, m.Length);
Assert.AreEqual(1, scan.Offset);
}
public void FirstMatch()
{
Rule d = new Rule();
Rule l = new Rule();
d.Parser = Prims.Digit;
l.Parser = Prims.Letter;
AlternativeParser rp = l | d;
IScanner scan = Provider.Scanner;
ParserMatch m = rp.Parse(scan);
Assert.IsTrue(m.Success);
Assert.AreEqual(m.Length, 1);
Assert.AreEqual(scan.Offset, 1);
}