public void Backreference_Number()
{
var regex = RegularExpression.Of(
CaptureGroup.Of(Quantifiers.OneOrMore(Literal.For("a"))),
Quantifiers.ZeroOrMore(Literal.For("b")),
Backreference.For(1)
).ToRegex();
Assert.AreEqual(@"(a+)b*\1", regex.ToString());
}
public static void test_backref()
{
var context = new Context("aaaaab");
var chara = new Character('a');
var lazya = new Lazy(chara, 1);
var cap1 = new CaptureGroup(lazya, 1);
var back1 = new Backreference(cap1);
var list = new List(new IMatch[] { cap1, back1 });
// ((a+?)\1)
ExecTest(context, list);
}
public void Backreference_Name_WithQuotes()
{
var regex = RegularExpression.Of(
CaptureGroup.Of(new CaptureGroupOptions()
{
Name = "a", UseQuotes = true
}, Quantifiers.OneOrMore(Literal.For("a"))),
Quantifiers.ZeroOrMore(Literal.For("b")),
Backreference.For("a", true)
).ToRegex();
Assert.AreEqual(@"(?'a'a+)b*\k'a'", regex.ToString());
}
public void Backreference_Name()
{
var regex = RegularExpression.Of(
CaptureGroup.Of(new CaptureGroupOptions()
{
Name = "a"
}, Quantifiers.OneOrMore(Literal.For("a"))),
Quantifiers.ZeroOrMore(Literal.For("b")),
Backreference.For("a")
).ToRegex();
Assert.AreEqual(@"(?<a>a+)b*\k<a>", regex.ToString());
}
public object VisitBackreference(Backreference backreference, object data)
{
throw new NotImplementedException();
}
