Regex for C-like function body matching

\{\s*(?<Body>
(?>
	# inside a multi line comment
	(?(InCommentML)
		(?<Comments>(?:[^*/]|(?!\*)/|\*(?<!/))+)
		\*/\s* (?<-InCommentML>)

	# not inside a multi line comment
	|
		(?:
			# inside a single line comment
			(?(InCommentSL)
				(?<Comments>[^\n\r]+)
				[\r\n]+ (?<-InCommentSL>)

			# not in a comment
			|
				(?:
					# single line comment
					// (?<InCommentSL>)
				|
					# multi line comment
					/\* (?<InCommentML>)
				|
					# match lines until any of the following are found: //, /*, new line, or change scope
					(?<Code>(?!/)/|/(?!\*)|(?!/)\*|[^{}\r\n/*]+)\s*
				|
					# open scope
					\{\s* (?<Scope>)
				|
					# close scope
					\}\s* (?<-Scope>)
				)
			)
		)
	)
)*

# fail clause: a scope was not closed
(?(Scope)(?!))

)\}