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emacsfont-lock

How to set emacs operator color?

How can I set font color for operators? I'm programing in C++, and I would like operators such as '+', '=', '!=', '<<' and such be colored as I wish.

I tried move the cursor onto an operator and 'M-x customize-face' but it takes me to 'all faces' by default. Which is the one I should edit?

Solution

  • I believe this is what you're looking for.

    ;;       * the name of our face *
(defface font-lock-operator-face
  '((((class color)
       :background "darkseagreen2")))
  "Basic face for highlighting."
  :group 'basic-faces)

;; You'll have a hard time missing these colors
(set-face-foreground 'font-lock-operator-face "red")
(set-face-background 'font-lock-operator-face "blue")

(font-lock-add-keywords 'c++-mode
  '(("\\(~^&\|!<>:=,.\\+*/%-]\\)" 0 'font-lock-operator-face)))