Changeset 9241 for trunk/actionpack/lib

Timestamp:

04/08/08 04:52:01 (8 months ago)

Author:

rick

Message:

add json_escape ERB util to escape html entities in json strings that are output in HTML pages. [rick]

Files:

• trunk/actionpack/lib/action_view/template_handlers/erb.rb (modified) (2 diffs)

trunk/actionpack/lib/action_view/template_handlers/erb.rb

@@ -3 +3 @@
-class ERB
-  module Util
-
+
+
-
-    # A utility method for escaping HTML tag characters.
@@ -17 +18 @@
-      s.to_s.gsub(/[&"><]/) { |special| HTML_ESCAPE[special] }
-    end
+
+    # A utility method for escaping HTML entities in JSON strings.
+    # This method is also aliased as <tt>j</tt>.
+    #
+    # In your ERb templates, use this method to escape any HTML entities:
+    #   <%=j @person.to_json %>
+    #
+    # ==== Example:
+    #   puts json_escape("is a > 0 & a < 10?")
+    #   # => is a \u003E 0 \u0026 a \u003C 10?
+    def json_escape(s)
+      s.to_s.gsub(/[&"><]/) { |special| JSON_ESCAPE[special] }
+    end
+
+    alias j json_escape
+    module_function :j
+    module_function :json_escape
-  end
-end