encoding.rb in radiant-0.8.1

- old
+ new
@@ -1,19 +1,90 @@
+# encoding: utf-8
+require 'active_support/core_ext/module/delegation'
+require 'active_support/deprecation'
+
 module ActiveSupport
+  class << self
+    delegate :use_standard_json_time_format, :use_standard_json_time_format=,
+      :escape_html_entities_in_json, :escape_html_entities_in_json=,
+      :to => :'ActiveSupport::JSON::Encoding'
+  end
+
   module JSON
-    class CircularReferenceError < StandardError
+    # matches YAML-formatted dates
+    DATE_REGEX = /^(?:\d{4}-\d{2}-\d{2}|\d{4}-\d{1,2}-\d{1,2}[ \t]+\d{1,2}:\d{2}:\d{2}(\.[0-9]*)?(([ \t]*)Z|[-+]\d{2}?(:\d{2})?))$/
+
+    class << self
+      delegate :encode, :to => :'ActiveSupport::JSON::Encoding'
     end
 
-    # Converts a Ruby object into a JSON string.
-    def self.encode(value, options = {})
-      seen = (options[:seen] ||= [])
-      raise CircularReferenceError, 'object references itself' if seen.include?(value)
-      seen << value
-      value.send(:to_json, options)
-    ensure
-      seen.pop
+    module Encoding #:nodoc:
+      class CircularReferenceError < StandardError
+      end
+
+      ESCAPED_CHARS = {
+        "\010" =>  '\b',
+        "\f"   =>  '\f',
+        "\n"   =>  '\n',
+        "\r"   =>  '\r',
+        "\t"   =>  '\t',
+        '"'    =>  '\"',
+        '\\'   =>  '\\\\',
+        '>'    =>  '\u003E',
+        '<'    =>  '\u003C',
+        '&'    =>  '\u0026' }
+
+      class << self
+        # If true, use ISO 8601 format for dates and times. Otherwise, fall back to the Active Support legacy format.
+        attr_accessor :use_standard_json_time_format
+
+        attr_accessor :escape_regex
+        attr_reader :escape_html_entities_in_json
+
+        def escape_html_entities_in_json=(value)
+          self.escape_regex = \
+            if @escape_html_entities_in_json = value
+              /[\010\f\n\r\t"\\><&]/
+            else
+              /[\010\f\n\r\t"\\]/
+            end
+        end
+
+        def escape(string)
+          string = string.dup.force_encoding(::Encoding::BINARY) if string.respond_to?(:force_encoding)
+          json = string.
+            gsub(escape_regex) { |s| ESCAPED_CHARS[s] }.
+            gsub(/([\xC0-\xDF][\x80-\xBF]|
+                   [\xE0-\xEF][\x80-\xBF]{2}|
+                   [\xF0-\xF7][\x80-\xBF]{3})+/nx) { |s|
+            s.unpack("U*").pack("n*").unpack("H*")[0].gsub(/.{4}/n, '\\\\u\&')
+          }
+          %("#{json}")
+        end
+
+        # Converts a Ruby object into a JSON string.
+        def encode(value, options = nil)
+          options = {} unless Hash === options
+          seen = (options[:seen] ||= [])
+          raise CircularReferenceError, 'object references itself' if seen.include?(value)
+          seen << value
+          value.to_json(options)
+        ensure
+          seen.pop
+        end
+      end
+
+      self.escape_html_entities_in_json = true
     end
+
+    CircularReferenceError = Deprecation::DeprecatedConstantProxy.new('ActiveSupport::JSON::CircularReferenceError', Encoding::CircularReferenceError)
   end
+end
+
+# Hack to load json gem first so we can overwrite its to_json.
+begin
+  require 'json'
+rescue LoadError
 end
 
 require 'active_support/json/variable'
 require 'active_support/json/encoders/date'
 require 'active_support/json/encoders/date_time'