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C:/Ruby192/lib/ruby/gems/1.9.1/gems/rack-1.3.4/lib/rack/backports/uri/common_192.rb:53: warning: already initialized constant WFKV_
=> true

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require "json"
require "psych"

module Fast
  class File
    def append path, content
      ::File.open path, "a" do |handler|
        handler.write content
      end
    end

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$LOAD_PATH << File.expand_path( "lib" )
require "piano/fast"
require "piano/rest"

disable :etags
enable :sessions

post "/" do
  resource :index
  save_data params

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require "maruku"

class DCResource
  attr_accessor :identifier, :title, :description
  
  def initialize path
    if File.exist? path
      @identifier = path.force_encoding("UTF-8")
      @title = path.force_encoding("UTF-8")
      @description = File.read( path ).lines.to_a[0..4].join("\n").force_encoding("UTF-8")

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# Instructions
# ============
#
# Put some files with no extension in /data and see the server
# read them (in stdout).
#
# > gem 'piano'
# > gem 'addressable'
# > gem 'mime-types'

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require "mechanize"

module Environment
  def self.server
    "http://localhost:4567/"
  end
  
  module Setup
    def self.file donde, que
      File.open donde, "w" do |file|

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In my fast Gem, in lib/fast/fast.rb:

If I write

module Fast
  def self.dir path = nil
    Fast::Dir.new( path ).list if path
    Fast::Dir.new
  end

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@mixin hoverable($width, $height)
  display: block
  position: relative
  overflow: hidden
  height: $height
  width: $width
  img
    position: relative
    display: block
  img.rollover

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!!! 5
%html
  %head
  %body
    - device.ipad? do
    
    - Piano::Device.device.ipad?
    
    - device.mobile? do
    - device.not_mobile? do

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# This class has been implemented into a gem rebuilding SymbolTable from the ground. It's called "SymbolMatrix"
# http://github.com/Fetcher/symbolmatrix

# Stupid but really useful class:
# Inherits from SymbolTable (https://github.com/mjijackson/symboltable), but when it is initialized
# it simply... well, recursively converts all Hashes into dictionaries
class Dictionary < SymbolTable
    
    def initialize *args
      super *args