using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(<(\w+)[^>]*>)((?!<\2).*)(<\/\2>)";
string input = @"alpha
<div>
alpha<div>
beta<div>
x < y divided by 4
</div>
</div>
</div>
<div>
<span style=""font-size: 8pt;"" disabled title=""data"">
<span>infinite</span>
<?= $record->id ?>
</span>
<div> equal </div>
</div>
<div> sum </div>
When x y and y > 0
<div> Summary</div>
Equation id <?= $equation->id ?>
";
RegexOptions options = RegexOptions.Singleline;
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