* lib/uri/common.rb (URI.encode_www_component):

call str.to_s at first.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26934 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Mon Mar 15 09:34:17 2010  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* lib/uri/common.rb (URI.encode_www_component):
+	  call str.to_s at first.
+
 Mon Mar 15 09:36:22 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* symbian/README.SYMBIAN: fixed broken patch and converted to

lib/uri/common.rb

@@ -743,9 +743,11 @@ module URI
       end
       TBLENCWWWCOMP_.freeze
     end
-    str = str.dup.force_encoding(Encoding::ASCII_8BIT)
+    str = str.to_s.dup
+    enc = str.encoding
+    str.force_encoding(Encoding::ASCII_8BIT)
     str.gsub!(/[^*\-.0-9A-Z_a-z]/, TBLENCWWWCOMP_)
-    str
+    str.force_encoding(enc)
   end
 
   # Decode given +str+ of URL-encoded form data.