prettify symbol

Posted on In Views:

prettify-symbol-alist c mode common hook

To prettify symbols in c-mode using prettify-symbols-alist, you can add a hook in your Emacs configuration file (e.g., init.el or .emacs). Here's an example:

1
2
3
4
5
6
7
8
9
(add-hook 'c-mode-hook
          (lambda ()
            (setq prettify-symbols-alist
                  '(("->" . ?→)
                    ("==" . ?≡)
                    ("!=" . ?≠)
                    ("<=" . ?≤)
                    (">=" . ?≥)))
            (prettify-symbols-mode 1)))

This hook will enable prettify-symbols-mode in c-mode and replace common C operators with prettier symbols. Adjust the prettify-symbols-alist as needed for your preferences.

add some more symbols

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
(add-hook 'c-mode-common-hook
          (lambda ()
            (setq prettify-symbols-alist
                  '(("->" . ?→)
                    ("==" . ?≡)
                    ("!=" . ?≠)
                    ("<=" . ?≤)
                    (">=" . ?≥)
                    ("&&" . ?∧)
                    ("||" . ?∨)
                    ("int" . ?ℤ)
                    ("float" . ?ℝ)
                    ("char" . ?ℂ)
                    ("return" . ?⏎)
                    ("NULL" . ?∅)
                    ("nullptr" . ?∅)
                    ("std::vector" . ?𝑉)
                    ("std::string" . ?𝑆)
                    ("std::array" . ?𝐴)
                    ("std::unique_ptr" . ?𝑃)
                    ("true . ?𝑡)
                    ("false . ?𝑓)
                    ("std::unordered_map" . ?#)
                    ("void" . ?∅)))
            (prettify-symbols-mode 1)))