using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?|([A-Z]\w+ [A-Z]\w+)(?:\w* )*([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4})|([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4})(?:\w* )*([A-Z]\w+ [A-Z]\w+)|([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}))";
string input = @"John Doe john@doe.com random text
Jane Doe random text jane@doe.com
jim@doe.com more random text tim@doe.com Tim Doe
tex@doe.com Tex Doe
D'arcy Bly Markus-Anthony Reid Lee Z abc@test.com";
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