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+---
+layout: post
+category: emacs
+title:  Emacs modes
+---
+
+For Christmas, I'll share a few modes for Emacs I've discovered
+lately.
+
+In the past few years, a few kit for Emacs have appears.  The first
+one was the Emacs Starter Kit (by technomancy), followed by Emacs
+Prelude and the last one is Emacs Live.  I don't use any of them,
+since I've my own configuration crafted the way I like, but from time
+to time I take a look at them to see what's new and what I can steal.
+
+I'm using Emacs on OSX, but I assume that most of the modes and
+example in this article will work at least for Linux.
+
+## Packaging
+
+Since version 24, Emacs come with a packaging system.  The official
+repository is Elpa, but you can add other repositories
+
+ * [Marmalde](http://marmalade-repo.org)
+ * [MELPA](http://melpa.milkbox.net)
+
+In your configuration, add the following code:
+
+..code
+(require 'package)
+
+(add-to-list 'package-archives '("marmalade" . "http://marmalade-repo.org/packages/") t)
+(add-to-list 'package-archives '("melpa" . "http://melpa.milkbox.net/packages/") t)
+
+(package-initialize)
+
+Now, if you want to install a package:  M-x package-instal {name}.  If
+you don't know what to install, a simple M-x package-list-packages
+will open a new buffer with all the packages available in the
+repositories you've selected.
+
+If you're using multiple computers and you share you're configuration
+between them, an easy solution is to list all the packages you want to
+be installed  everywhere:
+
+..code
+(defvar my-packages
+  '(magit
+    paredit
+    rainbow-delimiters
+    rainbow-mode
+    helm
+    helm-projectile
+    clojure-mode
+    diminish
+    nrepl
+    exec-path-from-shell
+    highlight-parentheses
+    auto-complete
+    markdown-mode
+    tango-2-theme
+    cyberpunk-theme
+    popwin
+    yasnippet
+    helm-c-yasnippet
+    yaml-mode
+    ruby-block
+    ruby-end
+    ruby-tools
+    inf-ruby
+    yari)
+  "A list of packages to ensure are installed at launch.")
+
+(dolist (p my-packages)
+  (when (not (package-installed-p p))
+    (package-install p)))
+
+
+## Helm mode
+
+I've been using ido for a long time now.  I knew about anything.el,
+and I've probably tried it in the past.  This project has been
+renamed to Helm, and it's much much better.  You could replace
+entirely ido with it, but I've been using it as a complement.  ido is
+good to open/find files/buffers, but if you're working on a project,
+Helm is more suited for that case.
+
+## auto-complete
+
+This one (and the next one) took me some time to decide I wanted to
+use them.  I've never been a big fan of auto completion stuff, and for
+what I want, hippie-expand is generally good enough.  But the video
+for [Overtone](http://vimeo.com/22798433) convinced me to give it a
+try, and I don't regret it.
+
+## yasnippet
+
+
+