Added SHARED_... classes for encoders (html, url, xml, json, ...)

library/text/encoder/src/shared_url_encoder.e

@@ -0,0 +1,28 @@
+note
+	description: "Objects to access the shared once URL_ENCODER ..."
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	SHARED_URL_ENCODER
+
+feature -- Encoder
+
+	url_encoder: URL_ENCODER
+			-- Shared URL encoder.
+		once
+			create Result
+		end
+
+note
+	copyright: "2011-2012, Eiffel Software and others"
+	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
+	source: "[
+			Eiffel Software
+			5949 Hollister Ave., Goleta, CA 93117 USA
+			Telephone 805-685-1006, Fax 805-685-6869
+			Website http://www.eiffel.com
+			Customer support http://support.eiffel.com
+		]"
+
+end