using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @/
(?:http(?:s)?:\/\/)?(?:player.|www\.)?(facebook\.com|vimeo\.com|ebaumsworld\.com|youtu(?:be\.com|\.be|be\.googleapis\.com)|liveleak\.com|break\.com)\/(?:video\.php(?:\?v=)|media\/embed\/|video\/watch\/|video\/|embed\/|watch\?v=|v\/)?(?:(?:view|ll_embed)\?)?(?:(f|i)=)?(?:video\/|(?:.*-))?([A-Za-z0-9._%-]*)(?:\&\S+)?
/;
string input = @"";
Match m = Regex.Match(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