using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"((?:https?(?:%3A%2F%2F|:\/\/))(?:www\.)?(?:\S+)(?:%2F|\/)(?:(?!\.(?:mp4|mkv|wmv|m4v|mov|avi|flv|webm|flac|mka|m4a|aac|ogg))[^\/])*\.(mp4|mkv|wmv|m4v|mov|avi|flv|webm|flac|mka|m4a|aac|ogg))(?!\/|\.[a-z]{1,3})";
string input = @"http://test.com/test.mkv
http://test.com/test/test.jpg.mkv
https://test.com/test.mkv?test=test
http%3A%2F%2Ftest.com%2Ftest.mkv%3Ftest%3Dtest
https%3A%2F%2Ftest.com%2Ftest.jpg.mkv%3Ftest%3Dtest.mkv
http://test.com/t est.mkv__some__random__string__http://test.com/test.mkv
The last example should match the two URLs but, not the __some__random__string__.
Some examples that should not be matched:
http://test.com/test.mkv.jpg
http://test.com/test.mkv/test.jpg
https://test.com/test.mkv.jpg?test=test.mkv
http%3A%2F%2Ftest.com%2Ftest.mkv.jpg
https%3A%2F%2Ftest.com%2Ftest.mkv.jpg%3Ftest%3Dtest.mkv
http://test.com/t est.mkv__some__random__string__http://test.com/test.mkv.jpg
The last example should match only the first URL, before __some__random__string__";
RegexOptions options = RegexOptions.IgnoreCase | 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