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Emacsで #f95327 などの文字列に色を付けておく

Last updated at Posted at 2013-09-15

css を書いてると #f92732 とか出てくるけど、どんな色なのかパッとわからないと不便だと思ったのでEmacsで色を付けてみた。

コメント欄で yasuyk@github さんが教えてくれた rainbow-mode の方が便利そうなので書き変え。

M-x package-install で rainbow-mode をインストールして

~/.emacs.d/inits/30-rainbow.el
(require 'rainbow-mode)
(add-hook 'css-mode-hook 'rainbow-mode)
(add-hook 'scss-mode-hook 'rainbow-mode)
(add-hook 'php-mode-hook 'rainbow-mode)
(add-hook 'html-mode-hook 'rainbow-mode)

でhookを書けておけばOK。ちなみにこの書き方は24からなので23より下のバージョンを使ってる人は「参考」を見て書いてください。

--こっから下は古いの。

~/.emacs.d/inits/40-hex-color.el
(defvar hexcolour-keywords
  '(("#[abcdef[:digit:]]\\{6\\}"
     (0 (put-text-property
         (match-beginning 0)
         (match-end 0)
         'face (list :background
                     (match-string-no-properties 0)))))))
(defun hexcolour-add-to-font-lock ()
  (font-lock-add-keywords nil hexcolour-keywords))

(add-hook 'css-mode-hook 'hexcolour-add-to-font-lock)
(add-hook 'scss-mode-hook 'hexcolour-add-to-font-lock)
(add-hook 'php-mode-hook 'hexcolour-add-to-font-lock)
(add-hook 'html-mode-hook 'hexcolour-add-to-font-lock)

でOK。

参考

Popup color from color string like #f2d3aa with Emacs - Stack Overflow
http://stackoverflow.com/questions/18806523/popup-color-from-color-string-like-f2d3aa-with-emacs

How to enable a package/mode on emacs startup? - Stack Overflow
http://stackoverflow.com/questions/16048231/how-to-enable-a-package-mode-on-emacs-startup

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