1 files changed, 53 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/multimap.rb b/actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/multimap.rb
new file mode 100644
index 0000000000..0f8eaaec67
--- /dev/null
+++ b/actionpack/lib/action_dispatch/vendor/rack-mount-0.6.6.pre/rack/mount/multimap.rb
@@ -0,0 +1,53 @@
+begin
+  require 'nested_multimap'
+rescue LoadError
+  $: << File.expand_path(File.join(File.dirname(__FILE__), 'vendor/multimap'))
+  require 'nested_multimap'
+end
+
+module Rack::Mount
+  class Multimap < NestedMultimap #:nodoc:
+    def store(*args)
+      keys  = args.dup
+      value = keys.pop
+      key   = keys.shift
+
+      raise ArgumentError, 'wrong number of arguments (1 for 2)' unless value
+
+      unless key.respond_to?(:=~)
+        raise ArgumentError, "unsupported key: #{args.first.inspect}"
+      end
+
+      if key.is_a?(Regexp)
+        if keys.empty?
+          @hash.each_pair { |k, l| l << value if k =~ key }
+          self.default << value
+        else
+          @hash.each_pair { |k, _|
+            if k =~ key
+              args[0] = k
+              super(*args)
+            end
+          }
+
+          self.default = self.class.new(default) unless default.is_a?(self.class)
+          default[*keys.dup] = value
+        end
+      else
+        super(*args)
+      end
+    end
+    alias_method :[]=, :store
+
+    undef :index, :invert
+
+    def height
+      containers_with_default.max { |a, b| a.length <=> b.length }.length
+    end
+
+    def average_height
+      lengths = containers_with_default.map { |e| e.length }
+      lengths.inject(0) { |sum, len| sum += len }.to_f / lengths.size
+    end
+  end
+end