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import rehypeDocument from "https://esm.sh/rehype-document";
import remarkFrontmatter from "https://esm.sh/remark-frontmatter";
import remarkParse from "https://esm.sh/remark-parse";
import remarkStringify from "https://esm.sh/remark-stringify";
import { unified } from "https://esm.sh/unified";
import { matter } from "npm:vfile-matter";
function yamlMetadataHandler() {
return function(tree, file) {
matter(file);
};
}
export async function extractMetadata(key: string, markdown: string) {
const file = await unified()
.use(remarkParse)
.use(remarkStringify)
.use(remarkFrontmatter)
.process(markdown);
matter(file, { strip: true });
return file.data.matter[key];
}
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December 1, 2023