syntax highlighting

src/functions.js

@@ -127,6 +127,8 @@ export function render_comment(comment_content)
 export function render_md(content)
 {
 	const markdownit = require("markdown-it")
+	const hljs = require("highlight.js");
+	const namedCodeBlocks = require("markdown-it-named-code-blocks");
 	const md = markdownit
 	({ // this is just defining some options for markdown-it, should I add this to config.json?
 		html: false,
@@ -135,7 +137,21 @@ export function render_md(content)
 		linkify: false,
 		typographer: true,
 		quotes: locale.quotes,
+		highlight: function (content, lang) {
+			if (lang && hljs.getLanguage(lang)) {
+				return (
+					'<pre class="hljs"><code>' +
+					hljs.highlight(content, { language: lang, ignoreIllegals: true }).value +
+					"</code></pre>"
+				);
+			}
+
+			return (
+				'<pre class="hljs"><code>' + md.utils.escapeHtml(content) + "</code></pre>"
+			);
+		}
 	})
+	.use(namedCodeBlocks)
 	.disable('image');
 	return md.render(content)
 };