emacs - 在 Emacs 21.3.1 中以 C/C++ 模式更改 #if 0 ... #endif block 中代码的颜色

Question

引用链接，
In C/C++ mode in Emacs, change face of code in #if 0...#endif block to comment face .

我尝试了代码，但它似乎不起作用。我的 emacs 版本是 Linux 上的 GNU Emacs 21.3.1。

请你让我知道我哪里出错了。

TIA

Answer 1

cpp-highlight-mode可以在没有用户交互的情况下工作。这是我的设置方式:

(defun cpp-highlight-if-0/1 ()
  "Modify the face of text in between #if 0 ... #endif."
  (interactive)
  (setq cpp-known-face '(background-color . "dim gray"))
  (setq cpp-unknown-face 'default)
  (setq cpp-face-type 'dark)
  (setq cpp-known-writable 't)
  (setq cpp-unknown-writable 't)
  (setq cpp-edit-list
        '((#("1" 0 1
             (fontified nil))
           nil
           (background-color . "dim gray")
           both nil)
          (#("0" 0 1
             (fontified nil))
           (background-color . "dim gray")
           nil
           both nil)))
  (cpp-highlight-buffer t))

(defun jpk/c-mode-hook ()
  (cpp-highlight-if-0/1)
  (add-hook 'after-save-hook 'cpp-highlight-if-0/1 'append 'local)
  )

(add-hook 'c-mode-common-hook 'jpk/c-mode-hook)

关键是弄清楚 cpp-highlight-mode看着 cpp-edit-list .我按照我想要的交互方式进行设置，然后查看 cpp-edit-list结果是 C-h v .