CODEWITHSUNDEEP
clojurecolorssyntax-highlightingread-eval-print-loop
thnetos
thnetos

Reputation: 1326

Is there a colored REPL for Clojure?

I'd like to get a colored REPL for clojure code, similar to what you can do with IRB for Ruby.

Are there any libraries or settings for user.clj that provide automatic coloring of the REPL?

Example IRB:

alt text

Upvotes: 40

Views: 9744

Answers (11)

Vinoth Kumar Asaithambi
Vinoth Kumar Asaithambi

Reputation: 181

You can try LightTable, it lets you select the functions and run instantly.

Upvotes: 0

Conan
Conan

Reputation: 2358

If you're an Intellij user, the excellent Cursive is a great choice, and provides pretty colours that you can customise:

enter image description here

Upvotes: 1

Venantius
Venantius

Reputation: 2539

Rather late to the party, here, but you can get this from using the Leiningen plugin Ultra (which also has support for colorized stacktraces and pretty-printed test output), or by adding Whidbey to your list of Leiningen plugins instead.

Sample Ultra REPL:enter image description here

Upvotes: 28

0x89
0x89

Reputation: 2920

If you just want to color the prompt and you are using Leiningen (which you should), you can use :repl-options and ANSI escape sequences:

:repl-options {:prompt (fn [ns]
                         (str "\033[1;32m"
                              ns "=>"
                              "\033[0m "))}

References:

Upvotes: 9

Vlad Bokov
Vlad Bokov

Reputation: 371

To get your REPL output colorized try repl-color

enter image description here

Upvotes: 0

Bozhidar Batsov
Bozhidar Batsov

Reputation: 56595

CIDER users can obtain a coloured REPL by adding the following to their config:

(setq cider-repl-use-clojure-font-lock t)

Upvotes: 2

dansalmo
dansalmo

Reputation: 11686

Try out Light Table Playground by Chris Granger. It is the first part of more ambitous multi language IDE.

It has a color Clojure REPL that does real time evaluations and display for entire blocks of code.

http://www.chris-granger.com/lighttable/

You can see a higher level view of the project here:

http://www.kickstarter.com/projects/ibdknox/light-table

Upvotes: 2

Sridhar Ratnakumar
Sridhar Ratnakumar

Reputation: 85352

  • Install Emacs 24
  • Install Emacs Starter Kit v2
  • M-x package-install -> starter-kit-lisp
  • Add to init.el: (add-hook 'slime-repl-mode-hook 'clojure-mode-font-lock-setup)
  • Install Swank for Clojure
  • Open your Clojure project and M-x clojure-jack-in

Emacs REPL

Upvotes: 5

mikera
mikera

Reputation: 106351

The Eclipse Counterclockwise REPL provides full syntax colouring (including rainbow bracket colouring).

I believe it uses nREPL under the hood.

Upvotes: 1

Michał Marczyk
Michał Marczyk

Reputation: 84341

I do not know of any way to have the basic Clojure REPL, as started by something like java -cp clojure.jar clojure.main, do syntax highlighting. If, however, you use Emacs & SLIME (the development environment of choice of a great part of the Clojure community!), then you can have the SLIME REPL highlight syntax like clojure-mode does.

First, you'll have to lift some code from the clojure-mode function (defined towards the top of clojure-mode.el):

;;; all code in this function lifted from the clojure-mode function
;;; from clojure-mode.el
(defun clojure-font-lock-setup ()
  (interactive)
  (set (make-local-variable 'lisp-indent-function)
       'clojure-indent-function)
  (set (make-local-variable 'lisp-doc-string-elt-property)
       'clojure-doc-string-elt)
  (set (make-local-variable 'font-lock-multiline) t)

  (add-to-list 'font-lock-extend-region-functions
               'clojure-font-lock-extend-region-def t)

  (when clojure-mode-font-lock-comment-sexp
    (add-to-list 'font-lock-extend-region-functions
                 'clojure-font-lock-extend-region-comment t)
    (make-local-variable 'clojure-font-lock-keywords)
    (add-to-list 'clojure-font-lock-keywords
                 'clojure-font-lock-mark-comment t)
    (set (make-local-variable 'open-paren-in-column-0-is-defun-start) nil))

  (setq font-lock-defaults
        '(clojure-font-lock-keywords    ; keywords
          nil nil
          (("+-*/.<>=!?$%_&~^:@" . "w")) ; syntax alist
          nil
          (font-lock-mark-block-function . mark-defun)
          (font-lock-syntactic-face-function
           . lisp-font-lock-syntactic-face-function))))

Then add it to the slime-repl-mode-hook:

(add-hook 'slime-repl-mode-hook
          (lambda ()
            (font-lock-mode nil)
            (clojure-font-lock-setup)
            (font-lock-mode t)))

Et voilà, next time you connect to the SLIME REPL you'll have clojure-mode syntax highlighting available. If you use SLIME for Common Lisp too, you'll want to tweak this so it doesn't try to do Clojure highlighting with CL. Also, this is just a first approximation; one thing it sort of breaks is prompt highlighting (the namespace> thing will not be highlighted anymore). I'm not a proficient font-lock hacker by any stretch of the imagination, though, so I'll leave it at that. :-)

Upvotes: 17

Sergey Miryanov
Sergey Miryanov

Reputation: 1830

Some coloring have REPL in VimClojure.

Upvotes: 2

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