lib/facet/regexp/arity.rb in facets-1.1.0 vs lib/facet/regexp/arity.rb in facets-1.2.0
- old
+ new
@@ -1,41 +2 @@
-class Regexp
- # Returns the number of backreferencing subexpressions.
- #
- # /(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
-
-
-
-# _____ _
-# |_ _|__ ___| |_
-# | |/ _ \/ __| __|
-# | | __/\__ \ |_
-# |_|\___||___/\__|
-#
-=begin test
-
- require 'test/unit'
-
- class TCRegexp < Test::Unit::TestCase
-
- def test_arity
- r = /(1)(2)(3)/
- assert_equal( 3, r.arity )
- r = /(1)(2)(3)(4)/
- assert_equal( 4, r.arity )
- r = /(1)(2)((a)3)/
- assert_equal( 4, r.arity )
- r = /(?#nothing)(1)(2)(3)(?=3)/
- assert_equal( 3, r.arity )
- end
-
- end
-
-=end
+require 'facets/core/regexp/arity.rb'
\ No newline at end of file