john2x

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors and Sequences

ffevotte

(defun source (filename)
  "Update environment variables from a shell source file."
  (interactive "fSource file: ")

  (message "Sourcing environment from `%s'..." filename)
  (with-temp-buffer

    (shell-command (format "diff -u <(true; export) <(source %s; export)" filename) '(4))

    (let ((envvar-re "declare -x \\([^=]+\\)=\\(.*\\)$"))

areina

Manage your gmail account in emacs with mu4e

There're a lot of combinations to manage your email with emacs, but this works for me. I've a backup and I can manage my daily email.

The stack:

• emacs
• offlineimap
• mu
• mu4e

steveklabnik

$ history | awk {'print $2, $3, $4'} | sort | uniq -c | sort -k1 -rn | head -n 30
 610 git status 
 568 git commit -m
 491 git add .
 252 git push origin
 176 bundle  
 138 rails s 
 128 ls  
 120 git commit --amend
 114 git reset --hard