arity.rb in facets-0.9.0

- old
+ new

@@ -1,14 +2 @@
-class Regexp
-  # Returns the number of backreferencing subexpressions.
-  #
-  #   require 'facet/regexp/arity'
-  #
-  #   /(a)(b)(c)/.arity  #=> 3
-  #   /(a(b(c)))/.arity  #=> 3
-  #
-  # Note: This is not perfect, especially with regards to \x
-  # and embedded comments.
-  def arity
-    self.source.scan( /(?!\\)[(](?!\?[#=:!>-imx])/ ).length
-  end
-end
+require 'nano/regexp/arity.rb'
\ No newline at end of file