using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^
(?:
(?:data|https?):
(?://)?
|
\*
)
(?:
(?:
(?:
[a-z\d.*-]
|
%[a-f\d]{2}
)+
|
(?:
\[
(?:[a-f\d]{0,4}:)*
(?:[a-f\d]{0,4})
\]
)
)
(?::\d+)?
)?
$";
string input = @"";
RegexOptions options = RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace;
Match m = Regex.Match(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