Does anybody know a good Emacs mode to edit JSON? An app I am working on uses a JSON based communication protocol and having the data nicely indented and syntax-highlighted would help me a lot in the process of figuring it out.
+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.tool
you 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.