using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"<div id=""target""((?'nested'<div)|</div(?'-nested')|[\w\W]*?)*</div>";
string input = @"<!DOCTYPE html>
<html>
<head>
<title>someTitle</title>
</head>
<body>
<div class=""outer"">
<h1>SomeHeader</h1>
<div id=""target"">
<h2>anotherHeader</h2>
<div id=""child"">
<div id=""grand-child"">
<h4>HelloWorld</h4>
</div>
</div>
</div>
</div>
</body>
</html>";
RegexOptions options = 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