M .gitignore → .gitignore

@@ -3,3 +3,4 @@ out
 __TODO.md
 design-document.md
 node_modules
+writePage.js

A writePageMain.js

@@ -0,0 +1,31 @@
+import { readFile } from "fs-extra";
+import { unified } from "unified";
+import remarkParse from "remark-parse";
+import remarkRehype from "remark-rehype";
+import rehypeStringify from "rehype-stringify";
+import remarkFrontmatter from "remark-frontmatter";
+import rehypeFormat from "rehype-format";
+import rehypeRaw from "rehype-raw";
+import rehypeWrap from "rehype-wrap";
+//
+//NOTE input: markdown -> MDAST -> HAST -> HTML
+//TODO does not yet accept before/after JSX components.
+//This is using unified's rehypeDocument to create a boilerplate with a few
+//inserts (favicon, css, title)
+//
+
+export async function writePageMain(filepath) {
+  const processor = await unified()
+    .use(remarkParse)
+    .use(remarkFrontmatter)
+    .use(remarkRehype, { allowDangerousHtml: true })
+    .use(rehypeRaw)
+    .use(rehypeWrap, { wrapper: "main" })
+    .use(rehypeFormat)
+    .use(rehypeStringify)
+    .process(await readFile(filepath, "utf-8"));
+  return processor.value;
+}
+
+// let input = "./input/content/cookie.md";
+// console.log(await writePageMain(input));