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@@ -1,6 +1,12 @@
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 $:.unshift File.dirname(__FILE__) + "/../lib"
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 require "invisible"
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+helpers do
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+  def time
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+    Time.now.to_s
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+  end
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+end
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+
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 layout do
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   html do
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     body do
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@@ -20,7 +26,7 @@ end
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 get "/" do
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   render do
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-    h2 "Welcome"
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+    h2 "Welcome, it's #{@helpers.time}"
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     p params["oh"]
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     p session["stuff"]
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   end

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@@ -9,6 +9,7 @@ class Invisible
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   def initialize(&block)
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     @actions = []
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     @layouts = {}
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+    @helpers = Module.new
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     @app     = self
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     instance_eval(&block) if block
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   end
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@@ -23,8 +24,8 @@ class Invisible
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     options = args.last.is_a?(Hash) ? args.pop : {}
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     layout  = @layouts[options.delete(:layout) || :default]
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     assigns = { :request => request, :params => params, :session => session }
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-    content = block ? Markaby::Builder.new(assigns, nil, &block).to_s : args.last
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-    content = Markaby::Builder.new(assigns.merge(:content => content), nil, &layout).to_s if layout
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+    content = block ? Markaby::Builder.new(assigns, @helpers, &block).to_s : args.last
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+    content = Markaby::Builder.new(assigns.merge(:content => content), @helpers, &layout).to_s if layout
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     [status, options, content]
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   end
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@@ -32,6 +33,11 @@ class Invisible
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     @layouts[name] = block
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   end
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+  def helpers(&block)
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+    @helpers.instance_eval(&block)
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+    instance_eval(&block)
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+  end
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+  
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   def call(env)
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     @request = Rack::Request.new(env)
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     @params  = @request.params