Recursive RegEx in .NET? (?R)

Question

When I use (?R) in a RegEx pattern in .NET, I get an ArgumentException:

Unrecognized grouping construct.

Does (?R) this have a different syntax in .NET?

Answer 1

The closest thing to recursion that .NET has to offer for Regex is balancing group definition. Recursion is not directly supported in .NET.

Answer 2

According to the documentation, (?R) is not a valid construct in .NET regular expressions, nor is there any mention on that page of "recursive" or "recursion" so apparently this is not supported in .NET.