Regular Expressions

	using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	using Crestron.SimplSharp;
	using System.Text.RegularExpressions;

	namespace SIMPLSDateTime
	{
		public class UStoEUDate
		{
			/// <summary>
			/// USDate is a date in format MM/DD/YY.
			/// </summary>
			public string USDate;

			/// <summary>
			/// Takes the value of USDate, and turns it into European format DD/MM/YYYY assuming YYYY>=2000
			/// </summary>
			/// <returns></returns>
			public string ConvertDate()
			{
				try
				{
					// Use the Regex.Replace function for regular expression operations
					// when you don't need to create an explicit regular expression object.
					// Note that the replacement expression ${day} inserts the substring capturedby the group (?<day>),
					// ${month} inserts the substring captured by the group (?<month>), and
					// ${year} inserts the substring captured by the group (?<year>).
					return Regex.Replace(USDate,
						  "\\b(?<month>\\d{1,2})/(?<day>\\d{1,2})/(?<year>\\d{2})\\b",
						  "${day}/${month}/20${year}", RegexOptions.None);
				}
				catch
				{
					return USDate;
				}
			}
		}
	}

	#DEFAULT_VOLATILE
	#ENABLE_STACK_CHECKING
	#ENABLE_TRACE
	#ENCODING_ASCII

	#USER_SIMPLSHARP_LIBRARY "SIMPLSDateTime"

	DIGITAL_INPUT Trigger;

	STRING_INPUT Input$[255];

	STRING_OUTPUT Output$;

	UStoEUDate myDate;

	PUSH Trigger
	{
		Output$= myDate.ConvertDate();
	}

	CHANGE Input$
	{
		myDate.USDate=Input$;
	}

	Function Main()
	{
		// TODO:  Addcode here
		// Initialize declared globaland local variables/arrays as needed.
		// WaitForInitializationComplete();
		// If you are reading any Inputor Output variables, uncomment
		// the WaitForInitializationComplete statement above and read
		// them afterwards. Input/Output variables will not have
		// their correctvalues set until after the logic processor
		// runs and propagatesthe values to them.
	}