initial commit

lib/markdown.ts

@@ -0,0 +1,20 @@
+import { remark } from "remark";
+import remarkParse from "remark-parse";
+import rehypeRaw from "rehype-raw";
+import rehypeStringify from "rehype-stringify";
+import remarkRehype from "remark-rehype";
+
+/**
+ * Identical to renderMarkdown() in portfolio/data/content.ts, so the preview
+ * renders exactly what the live post page will. allowDangerousHtml is
+ * intentional: posts embed raw HTML blocks (e.g. <blockquote>).
+ */
+export async function renderMarkdown(source: string): Promise<string> {
+  const re = await remark()
+    .use(remarkParse)
+    .use(remarkRehype, { allowDangerousHtml: true })
+    .use(rehypeRaw)
+    .use(rehypeStringify)
+    .process(source);
+  return re?.toString() ?? "";
+}