fix(md): allow whitespace after markdown "---"

Author: yleflour

packages/markdown/src/markdown.lib.test.ts

@@ -34,6 +34,15 @@ describe("Markdown", () => {
       assertType<{ title: string; count: number } | undefined>(data);
       assert.deepEqual(data, { title: "Test", count: 5 });
     });
+    it("extracts and parses header data with trailing spaces after ---", () => {
+      const text = "--- \ntitle: Test\ncount: 5\n--- \nContent";
+      const schema = z.object({ title: z.string(), count: z.number() });
+      const data = md.getHeaderData<{ title: string; count: number }>(text, {
+        schema,
+      });
+      assertType<{ title: string; count: number } | undefined>(data);
+      assert.deepEqual(data, { title: "Test", count: 5 });
+    });
     it("returns undefined if header data is not present", () => {
       const text = "Content";
       const data = md.getHeaderData(text);

packages/markdown/src/markdown.lib.ts

@@ -86,7 +86,7 @@ export const fromHtml = (html: Stringable) => {
     .trim();
 };
 
-const HEADER_REGEX = /^---\n([\s\S]*?)\n---\n?/;
+const HEADER_REGEX = /^--- *\n([\s\S]*?)\n--- *\n?/;
 
 /**
  * Get the header data from a markdown document