1 files changed, 0 insertions, 113 deletions
diff --git a/activesupport/lib/active_support/json/backends/yaml.rb b/activesupport/lib/active_support/json/backends/yaml.rb
deleted file mode 100644
index e25e29d36b..0000000000
--- a/activesupport/lib/active_support/json/backends/yaml.rb
+++ /dev/null
@@ -1,113 +0,0 @@
-require 'active_support/core_ext/string/starts_ends_with'
-
-module ActiveSupport
-  module JSON
-    module Backends
-      module Yaml
-        ParseError = ::StandardError
-        extend self
-
-        EXCEPTIONS = [::ArgumentError] # :nodoc:
-        begin
-          require 'psych'
-          EXCEPTIONS << Psych::SyntaxError
-        rescue LoadError
-        end
-
-        # Parses a JSON string or IO and converts it into an object
-        def decode(json)
-          if json.respond_to?(:read)
-            json = json.read
-          end
-          YAML.load(convert_json_to_yaml(json))
-        rescue *EXCEPTIONS => e
-          raise ParseError, "Invalid JSON string: '%s'" % json
-        end
-
-        protected
-          # Ensure that ":" and "," are always followed by a space
-          def convert_json_to_yaml(json) #:nodoc:
-            require 'strscan' unless defined? ::StringScanner
-            scanner, quoting, marks, pos, times = ::StringScanner.new(json), false, [], nil, []
-            while scanner.scan_until(/(\\['"]|['":,\\]|\\.|[\]])/)
-              case char = scanner[1]
-              when '"', "'"
-                if !quoting
-                  quoting = char
-                  pos = scanner.pos
-                elsif quoting == char
-                  if valid_date?(json[pos..scanner.pos-2])
-                    # found a date, track the exact positions of the quotes so we can
-                    # overwrite them with spaces later.
-                    times << pos
-                  end
-                  quoting = false
-                end
-              when ":",",", "]"
-                marks << scanner.pos - 1 unless quoting
-              when "\\"
-                scanner.skip(/\\/)
-              end
-            end
-
-            if marks.empty?
-              json.gsub(/\\([\\\/]|u[[:xdigit:]]{4})/) do
-                ustr = $1
-                if ustr.start_with?('u')
-                  char = [ustr[1..-1].to_i(16)].pack("U")
-                  # "\n" needs extra escaping due to yaml formatting
-                  char == "\n" ? "\\n" : char
-                elsif ustr == '\\'
-                  '\\\\'
-                else
-                  ustr
-                end
-              end
-            else
-              left_pos  = [-1].push(*marks)
-              right_pos = marks << scanner.pos + scanner.rest_size
-              output    = []
-              left_pos.each_with_index do |left, i|
-                scanner.pos = left.succ
-                chunk = scanner.peek(right_pos[i] - scanner.pos + 1)
-                if ActiveSupport.parse_json_times
-                  # overwrite the quotes found around the dates with spaces
-                  while times.size > 0 && times[0] <= right_pos[i]
-                    chunk.insert(times.shift - scanner.pos - 1, '! ')
-                  end
-                end
-                chunk.gsub!(/\\([\\\/]|u[[:xdigit:]]{4})/) do
-                  ustr = $1
-                  if ustr.start_with?('u')
-                    char = [ustr[1..-1].to_i(16)].pack("U")
-                    # "\n" needs extra escaping due to yaml formatting
-                    char == "\n" ? "\\n" : char
-                  elsif ustr == '\\'
-                    '\\\\'
-                  else
-                    ustr
-                  end
-                end
-                output << chunk
-              end
-              output = output * " "
-
-              output.gsub!(/\\\//, '/')
-              output
-            end
-          end
-
-        private
-          def valid_date?(date_string)
-            begin
-              date_string =~ DATE_REGEX && DateTime.parse(date_string)
-            rescue ArgumentError
-              false
-            end
-          end
-
-      end
-    end
-  end
-end
-