using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?:(?:31(\/|-|\.)(?:0?[13578]|1[02]))\1|(?:(?:29|30)(\/|-|\.)(?:0?[1,3-9]|1[0-2])\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})(?=\W)|\b(?:29(\/|-|\.)0?2\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])?|(?:(?:16|[2468][048]|[3579][26])00)?)))(?=\W)|\b(?:0?[1-9]|1\d|2[0-8])(\/|-|\.)(?:(?:0?[1-9])|(?:1[0-2]))(\4)?(?:(?:1[6-9]|[2-9]\d)?\d{2})?(?=\b)";
string input = @"26.11
26.11.2016
29.2.2000
29/2/2015
abcde 27.11.2016 fghi
01/02/2000
31/01/2000
32/01/2000
01/1/2000
01/1/01
27.01.
01.12
fasd 24.10.
28/02/2001
30/04/2000
31/04/2000
31/07/2000
31/08/2000
31/09/2000
01/12/2000
01/15/2000
";
RegexOptions options = RegexOptions.Multiline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
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