using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"((20)[0-9]{2}[-](0[13578]|1[02])[-](0[1-9]|[12][0-9]|3[01]))|((20)[0-9]{2}[-](0[469]|11)[-](0[1-9]|[12][0-9]|30))|((20)[0-9]{2}[-](02)[-](0[1-9]|1[0-9]|2[0-8]))|((((20)(04|08|[2468][048]|[13579][26]))|2000)[-](02)[-]29)";
string input = @"";
foreach (Match m in Regex.Matches(input, pattern))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx