using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^(January|February|March|April|May|June|July|August|September|October|November|December) (3[01]|[12][0-9]|0[1-9]) (19|20)\d{2}$";
string input = @"Should pass:
January 12 1975
February 31 2000
May 01 2099
Should fail:
Abbreviated month:
Jan 12 1975
Day out of range:
February 32 2000
No leading zero on day:
May 1 2099
Year out of range:
March 11 1234
Year too long:
May 01 20000
Year too short:
May 01 19
";
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