using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(\[QUOTE[^][]*\]
(?:[^][]++|(?1))++
\[/QUOTE\])
\Z";
string input = @"Here is the example post text
[QUOTE]
This is an appropriate quote
[/QUOTE]
Here is more post content
Here is the example post text
[QUOTE]
This is an appropriate quote
[/QUOTE]
Here is more post content
[QUOTE]
This is an unnecessary quote, as it's below all of the post text
[QUOTE]
Here's an unnecessary nested quote, just to confuse things.
[/QUOTE]
[/QUOTE]";
RegexOptions options = RegexOptions.IgnorePatternWhitespace | 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