using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"<div>((?:<div[^>]*>(?1)<\/div>|[^<]*|<(?!div))*)<\/div>";
string substitution = @"<p>$1</p>";
string input = @"<div>
Lorem ipsum dolor sit amet
</div>
<div>
Lorem ipsum dolor sit amet
</div>
<div>
<div class=""media_embed"">
<div style=""xxx"">
<div style=""xxx"">
<div style=""xxx""></div>
</div>
</div>
</div>
</div>
<div>
Lorem ipsum dolor sit amet
</div>
<div class=""foo"">
<div>FOO</div>
<div class=""bar"">
<div>BAR</div>
</div>
<div>FOOBAR<div class=""foobar""></div></div>
<div class=""bar""><div><b>BAR</b></div></div>
<!-- para este caso, deberás ejecutar preg_replace
hasta que no haya nada nuevo por reemplazar -->
<div><div>foobar</div></div>
</div>";
RegexOptions options = RegexOptions.Multiline | RegexOptions.Singleline | RegexOptions.IgnoreCase;
Regex regex = new Regex(pattern, options);
string result = regex.Replace(input, substitution);
}
}
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