Emacs mode to edit JSON
+1 for Josh's json-mode -- works well for me. I added
(defun beautify-json () (interactive) (let ((b (if mark-active (min (point) (mark)) (point-min))) (e (if mark-active (max (point) (mark)) (point-max)))) (shell-command-on-region b e "python -m json.tool" (current-buffer) t)))and
(define-key json-mode-map (kbd "C-c C-f") 'beautify-json)to json-mode.el to make the shell command invocation easier.
UPDATE: For those of you with a need/desire to do this with unicode, see my question here. The upshot is rather than using:
python -m json.toolyou will want to use
python -c 'import sys,json; data=json.loads(sys.stdin.read()); print json.dumps(data,sort_keys=True,indent=4).decode("unicode_escape").encode("utf8","replace")'This both beautifies the JSON as well as preserving the original Unicode content.
js-mode supports syntax highlighting and indentation for json files.
This is as of Emacs 23.2, when espresso-mode was incorporated into Emacs and renamed js-mode.
Check it out:http://www.nongnu.org/espresso/