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#+TITLE: CSS
scss-mode is based on css-mode, so any settings for css-mode also
automatically should work for scss-mode.
Enable electric pairing.
#+BEGIN_SRC emacs-lisp
(add-hook 'css-mode-hook 'electric-pair-local-mode)
#+END_SRC
Enable electric indenting.
#+BEGIN_SRC emacs-lisp
(add-hook 'css-mode-hook 'electric-indent-local-mode)
#+END_SRC
Enable company mode.
#+BEGIN_SRC emacs-lisp
(add-hook 'css-mode-hook 'company-mode)
#+END_SRC
Enable rainbow mode to see all the color specifications (well, most)
as pretty colors.
#+BEGIN_SRC emacs-lisp
(add-hook 'css-mode-hook 'rainbow-mode)
#+END_SRC
Add the scssc compiler's error message output to the compilation error
regexps.
#+BEGIN_SRC emacs-lisp
(eval-when-compile (require 'compile))
(with-eval-after-load 'compile
(defvar oni:scss-error-regexp
(rx (and bol
(zero-or-more space) "on line "
(group (one-or-more digit)) " of "
(group (one-or-more (or word punct (syntax symbol))))
eol)))
(add-to-list 'compilation-error-regexp-alist
(list oni:scss-error-regexp 2 1 nil 2 2)))
#+END_SRC
Add a command to toggle the =!important= flag on CSS properties.
#+BEGIN_SRC emacs-lisp
(defun oni:css-property-important-p ()
"Return whether or not the current property is important."
(save-excursion
(beginning-of-line)
(re-search-forward "!important" (line-end-position) :noerror)))
(defun oni:css-add-important ()
"Add an important flag to the property on the current line."
(interactive)
(unless (oni:css-property-important-p)
(save-excursion
(end-of-line)
(when (re-search-backward ";" (line-beginning-position) :noerror)
(insert " !important")))))
(defun oni:css-remove-important ()
"Remove the important flag from the property on the current line."
(interactive)
(when (oni:css-property-important-p)
(save-excursion
(end-of-line)
(when (re-search-backward " !important" (line-beginning-position) :noerror)
(replace-match "")))))
(defun oni:css-toggle-important ()
"Toggle the important flag on the property on the current line."
(interactive)
(if (oni:css-property-important-p)
(oni:css-remove-important)
(oni:css-add-important)))
#+END_SRC
Add a keybinding to toggle the =!important= flag on the current line.
#+BEGIN_SRC emacs-lisp
(global-set-key (kbd "C-c !") #'oni:css-toggle-important)
#+END_SRC
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