2022/10/9
This UserScript is no longer updated; Use AtCoder Comfortable Editor instead.
AtCoder Better Highlighter
This is a script that colorize codes in submission pages with highlight.js.
https://gist.github.com/shouth/1d40c814231ad712725b97eeb78c62ab
Languages colorized by default
- Bash
- C
- C++
- C#
- Go.
- Java
- JavaScript
- Kotlin
- Objective-C
- PHP
- Perl
- Python
- Ruby
- Rust
- Swift
- TypeScript
Colorize other languages
First, open this script in the editor of your User Script extension.
Method 1: Add a dependency library
Copy the URL of the script for your language from https://cdnjs.com/libraries/highlight.js.
Next, find this line in the top of the script.
// @require https://cdnjs.cloudflare.com/ajax/libs/highlight.js/10.1.2/highlight.min.js
Then add the line below after the line above. Replace {copied URL here} with the URL you just copied.
// @require {copied URL here}
Method 2: Use eval().
By this method, you can highlight any languages that highlight.js supports. However, as is well known, it is dangerous to use eval(). Be careful of using this method.
Find these lines near line 84.
if (!hljs.getLanguage(name)) {
// const response = await fetch(`https://cdnjs.cloudflare.com/ajax/libs/highlight.js/10.1.2/languages/${name}.min.js`);
// eval(await response.text());
return;
}
Then rewrite them as follows.
if (!hljs.getLanguage(name)) {
const response = await fetch(`https://cdnjs.cloudflare.com/ajax/libs/highlight.js/10.1.2/languages/${name}.min.js`);
eval(await response.text());
// return;
}
Change themes
By default, this script uses default.css of highlight.js. To change themes, choose and copy the URL of css from https://cdnjs.com/libraries/highlight.js .
Next, find this line in the top of the script.
// @resource css https://cdnjs.cloudflare.com/ajax/libs/highlight.js/10.1.2/styles/default.min.css
Then replace the line above with the line below. Replace {copied URL here} with the URL you just copied.
// @resource css {copied URL here}
