96 lines
3.9 KiB
EmacsLisp
96 lines
3.9 KiB
EmacsLisp
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;;; json-mode.el --- Major mode for editing JSON files
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;; Copyright (C) 2011-2013 Josh Johnston
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;; Author: Josh Johnston
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;; URL: https://github.com/joshwnj/json-mode
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;; Version: 1.2.0
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; extend the builtin js-mode's syntax highlighting
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;;; Code:
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(require 'js)
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(require 'rx)
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(defconst json-mode-quoted-string-re
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(rx (group (char ?\")
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(zero-or-more (or (seq ?\\ ?\\)
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(seq ?\\ ?\")
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(seq ?\\ (not (any ?\" ?\\)))
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(not (any ?\" ?\\))))
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(char ?\"))))
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(defconst json-mode-quoted-key-re
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(rx (group (char ?\")
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(zero-or-more (or (seq ?\\ ?\\)
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(seq ?\\ ?\")
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(seq ?\\ (not (any ?\" ?\\)))
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(not (any ?\" ?\\))))
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(char ?\"))
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(zero-or-more blank)
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?\:))
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(defconst json-mode-number-re (rx (group (one-or-more digit)
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(optional ?\. (one-or-more digit)))))
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(defconst json-mode-keyword-re (rx (group (or "true" "false" "null"))))
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(defconst json-font-lock-keywords-1
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(list
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(list json-mode-quoted-key-re 1 font-lock-keyword-face)
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(list json-mode-quoted-string-re 1 font-lock-string-face)
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(list json-mode-keyword-re 1 font-lock-constant-face)
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(list json-mode-number-re 1 font-lock-constant-face)
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)
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"Level one font lock.")
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(defconst json-mode-beautify-command-python2
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"python2 -c \"import sys,json,collections; data=json.loads(sys.stdin.read(),object_pairs_hook=collections.OrderedDict); print json.dumps(data,sort_keys=%s,indent=4,separators=(',',': ')).decode('unicode_escape').encode('utf8','replace')\"")
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(defconst json-mode-beautify-command-python3
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"python3 -c \"import sys,json,codecs,collections; data=json.loads(sys.stdin.read(),object_pairs_hook=collections.OrderedDict); print((codecs.getdecoder('unicode_escape')(json.dumps(data,sort_keys=%s,indent=4,separators=(',',': '))))[0])\"")
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;;;###autoload
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(defun json-mode-beautify (&optional preserve-key-order)
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"Beautify / pretty-print from BEG to END, and optionally PRESERVE-KEY-ORDER."
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(interactive "P")
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(shell-command-on-region (if (use-region-p) (region-beginning) (point-min))
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(if (use-region-p) (region-end) (point-max))
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(concat (if (executable-find "env") "env " "")
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(format (if (executable-find "python2")
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json-mode-beautify-command-python2
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json-mode-beautify-command-python3)
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(if preserve-key-order "False" "True")))
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(current-buffer) t))
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;;;###autoload
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(defun json-mode-beautify-ordered ()
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"Beautify / pretty-print from BEG to END preserving key order."
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(interactive)
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(json-mode-beautify t))
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;;;###autoload
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(define-derived-mode json-mode javascript-mode "JSON"
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"Major mode for editing JSON files"
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(set (make-local-variable 'font-lock-defaults) '(json-font-lock-keywords-1 t)))
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;;;###autoload
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(add-to-list 'auto-mode-alist '("\\.json$" . json-mode))
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(define-key json-mode-map (kbd "C-c C-f") 'json-mode-beautify)
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(provide 'json-mode)
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;;; json-mode.el ends here
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