//GNU General Public License version 2 (GPLv2)
//http://4mvcblog.codeplex.com/license
//
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Text.RegularExpressions;
namespace _4mvcBlog.Core
{
public static class StringExtensions
{
private static readonly Regex EmailExpression = new Regex(@"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$", RegexOptions.Compiled | RegexOptions.Singleline);
public static bool IsEmail(this string s)
{
if (string.IsNullOrEmpty(s))
{
return false;
}
else
{
return EmailExpression.IsMatch(s);
}
}
}
}