System.IO.SearchPattern.Match C# (CSharp) Méthode

		private bool Match (Op op, string text, int ptr)
		{
			while (op != null) {
				switch (op.Code) {
				case OpCode.True:
					return true;

				case OpCode.End:
					if (ptr == text.Length)
						return true;

					return false;
				
				case OpCode.ExactString:
					int length = op.Argument.Length;
					if (ptr + length > text.Length)
						return false;

					string str = text.Substring (ptr, length);
					if (ignore)
						str = str.ToLowerInvariant ();

					if (str != op.Argument)
						return false;

					ptr += length;
					break;

				case OpCode.AnyChar:
					if (++ ptr > text.Length)
						return false;
					break;

				case OpCode.AnyString:
					while (ptr <= text.Length) {
						if (Match (op.Next, text, ptr))
							return true;

						++ ptr;
					}

					return false;
				}

				op = op.Next;
			}

			return true;
		}