using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?<=<table>)\s*<tr>\s*<td>([a-z0-9 ]*)<\/td>\s*<\/tr>";
string input = @"<table>
<tr>
<td>Text A</td>
</tr>
<tr>
<td>
<table> <!-- Notice this is an inner scope table -->
<tr>
<td>Text B</td>
</tr>
</table>
</td>
</tr>
</table>
<table>
<tr>
<td>
<table> <!-- Notice this is an inner scope table -->
<tr>
<td>Text C</td>
</tr>
</table>
</td>
</tr>
</table>
<table>
<tr>
<td>Text D</td>
</tr>
</table>";
RegexOptions options = RegexOptions.Singleline | RegexOptions.IgnoreCase;
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