Fix non-alphanumeric start/end characters in TOC (preactjs#776)

Fixes preactjs#775.
JDLT-Ltd · May 11, 2021 · ec0be0b · ec0be0b
1 parent bf5a328
commit ec0be0b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/lib/content.js b/src/lib/content.js
@@ -158,7 +158,8 @@ function generateToc(markdown) {
 		// Note: character range in regex is roughly "word characters including accented" (eg: bublé)
 		const id = text
 			.toLowerCase()
-			.replace(/[\s-!()<>`'"&,]+/g, '-');
+			.replace(/[\s-!()<>`'"&,]+/g, '-')
+			.replace(/(?:^-|-$)/g, '');
 		toc.push({ text, id, level });
 	}
 	return toc;