Provides Emacs font-lock, indentation, and navigation for the Clojure programming language.
A more thorough walkthrough is available at clojure-doc.org
Marmalade is recommended as it has the latest stable version, but MELPA has a development snapshot for users who don't mind breakage but don't want to run from a git checkout.
If you're not already using Marmalade, add this to your
~/.emacs.d/init.el and load it with M-x eval-buffer.
(require 'package) (add-to-list 'package-archives '("marmalade" . "http://marmalade-repo.org/packages/")) (package-initialize)
If you're feeling adventurous and you'd like to use MELPA add this bit of code instead:
(require 'package) (add-to-list 'package-archives '("melpa" . "http://melpa.milkbox.net/packages/") t) (package-initialize)
And then you can install:
M-x package-install [RET] clojure-mode [RET]
or if you'd rather keep it in your dotfiles:
(unless (package-installed-p 'clojure-mode) (package-refresh-contents) (package-install 'clojure-mode))
On Emacs 23 you will need to get package.el
yourself or install manually by placing
clojure-mode.el on your
This source repository also includes
provides support for running Clojure tests (using the
framework) via CIDER and seeing feedback in the test buffer about
which tests failed or errored. The installation instructions above
should work for clojure-test-mode as well.
Once you have a repl session active, you can run the tests in the current buffer with C-c C-,. Failing tests and errors will be highlighted using overlays. To clear the overlays, use C-c k.
Using clojure-mode with Paredit is highly recommended. It helps ensure the structure of your forms is not compromised and offers a number of operations that work on code structure at a higher level than just characters and words.
It is also available using package.el from the above archives.
Use Paredit as you normally would any other minor mode; for instance:
;; (require 'paredit) if you didn't install it via package.el (add-hook 'clojure-mode-hook 'paredit-mode)
See the cheat sheet for Paredit usage hints.
A number of options exist for connecting to a running Clojure process and evaluating code interactively.
Use M-x run-lisp to open a simple REPL subprocess using Leiningen. Once that has opened, you can use C-c C-r to evaluate the region or C-c C-l to load the whole file.
If you don't use Leiningen, you can set
a different REPL command.
Another option is Ritz, which is a bit more complicated but offers advanced debugging functionality using SLIME.
SLIME is available via
SLIME support was removed in version 2.x in favor of
Characterizing the default indentation rules of clojure-mode is difficult to do in summary; this is one attempt:
- Bodies of parenthesized forms are indented such that arguments are aligned to
the start column of the first argument, except for a class of forms
identified by the symbol in function position, the bodies of which are
indented two spaces, regardless of the position of their first argument (this
is called "defun" indentation, for historical reasons):
- Known special forms (e.g.
- Nearly all "core" macros that ship as part of Clojure itself
- Userland macros (and any other form?) that are locally registered via
define-clojure-indent(helpers for adding mappings to
- Known special forms (e.g.
- The bodies of certain more complicated macros and special forms
extend-protocol, etc) are indented using a contextual backtracking indentation method, controlled by
- The bodies of other forms (e.g. vector, map, and set literals) are indented such that each new line within the form is set just inside of the opening delimiter of the form.
Please see the docstrings of the elisp functions/vars noted above for information about customizing this indentation behaviour.
Copyright © 2007-2013 Jeffrey Chu, Lennart Staflin, Phil Hagelberg, and contributors.
Distributed under the GNU General Public License; type C-h C-c to view it.