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Pretty print your Ruby objects with style -- in full color and with proper indentation
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README.md

Awesome Print

Awesome Print is Ruby library that pretty prints Ruby objects in full color exposing their internal structure with proper indentation. Rails MongoMapper objects are supported via included mixin.

Installation

# Installing as Ruby gem
$ gem install awesome_print

# Installing as Rails plugin
$ ruby script/plugin install http://github.com/michaeldv/awesome_print_.git

# Cloning the repository
$ git clone git://github.com/michaeldv/awesome_print_.git

Usage

require "ap"
ap object, options = {}

Default options:

:multiline => true,
:plain  => false,
:indent => 4,
:colors => {
  :array      => :white,
  :bignum     => :blue,
  :class      => :yellow,
  :date       => :greenish,
  :falseclass => :red,
  :fixnum     => :blue,
  :float      => :blue,
  :hash       => :gray,
  :nilclass   => :red,
  :string     => :yellowish,
  :symbol     => :cyanish,
  :time       => :greenish,
  :trueclass  => :green
}

Supported color names:

:gray, :red, :green, :yellow, :blue, :purple, :cyan, :white
:black, :redish, :greenish, :yellowish, :blueish, :purpleish, :cyanish, :pale

Examples

$ cat > 1.rb
require "ap"
data = [ false, 42, %w(fourty two), { :now => Time.now, :class => Time.now.class, :distance => 42e42 } ]
ap data
^D
$ ruby 1.rb
[
    [0] false,
    [1] 42,
    [2] [
        [0] "fourty",
        [1] "two"
    ],
    [3] {
           :class => Time < Object,
             :now => Fri Apr 02 19:55:53 -0700 2010,
        :distance => 4.2e+43
    }
]

$ cat > 2.rb
require "ap"
data = { :now => Time.now, :class => Time.now.class, :distance => 42e42 }
ap data, :indent => -2  # <-- Left align hash keys.
^D
$ ruby 2.rb
{
  :class    => Time < Object,
  :now      => Fri Apr 02 19:55:53 -0700 2010,
  :distance => 4.2e+43
}

$ cat > 3.rb
require "ap"
data = [ false, 42, %w(fourty two) ]
data << data  # <-- Nested array.
ap data, :multiline => false
^D
$ ruby 3.rb
[ false, 42, [ "fourty", "two" ], [...] ]

Example (Rails console)

$ ruby script/console
Loading development environment (Rails 2.3.5)
rails> require "ap"
rails> ap Account.all(:limit => 2)
[
    [0] #<Account:0x1033220b8> {
                     :id => 1,
                :user_id => 5,
            :assigned_to => 7,
                   :name => "Hayes-DuBuque",
                 :access => "Public",
                :website => "http://www.hayesdubuque.com",
        :toll_free_phone => "1-800-932-6571",
                  :phone => "(111)549-5002",
                    :fax => "(349)415-2266",
             :deleted_at => nil,
             :created_at => Sat, 06 Mar 2010 09:46:10 UTC +00:00,
             :updated_at => Sat, 06 Mar 2010 16:33:10 UTC +00:00,
                  :email => "info@hayesdubuque.com",
        :background_info => nil
    },
    [1] #<Account:0x103321ff0> {
                     :id => 2,
                :user_id => 4,
            :assigned_to => 4,
                   :name => "Ziemann-Streich",
                 :access => "Public",
                :website => "http://www.ziemannstreich.com",
        :toll_free_phone => "1-800-871-0619",
                  :phone => "(042)056-1534",
                    :fax => "(106)017-8792",
             :deleted_at => nil,
             :created_at => Tue, 09 Feb 2010 13:32:10 UTC +00:00,
             :updated_at => Tue, 09 Feb 2010 20:05:01 UTC +00:00,
                  :email => "info@ziemannstreich.com",
        :background_info => nil
    }
]
rails> ap Account
class Account < ActiveRecord::Base {
                 :id => :integer,
            :user_id => :integer,
        :assigned_to => :integer,
               :name => :string,
             :access => :string,
            :website => :string,
    :toll_free_phone => :string,
              :phone => :string,
                :fax => :string,
         :deleted_at => :datetime,
         :created_at => :datetime,
         :updated_at => :datetime,
              :email => :string,
    :background_info => :string
}
rails>

Known Issues

  • Windows...

Note on Patches/Pull Requests

  • Fork the project on Github.
  • Make your feature addition or bug fix.
  • Add specs for it, making sure $ rake spec is all green.
  • Commit, do not mess with rakefile, version, or history.
  • Send me a pull request.

License

Copyright (c) 2010 Michael Dvorkin
%w(mike dvorkin.net) * "@" || %w(mike fatfreecrm.com) * "@"

Released under the MIT license. See LICENSE file for details.

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