remove prosemirror, reuse unified pipelines

src/components/Widgets/Markdown/unified.js

@@ -0,0 +1,33 @@
+import unified from 'unified';
+import markdownToRemark from 'remark-parse';
+import remarkToRehype from 'remark-rehype';
+import rehypeToHtml from 'rehype-stringify';
+import htmlToRehype from 'rehype-parse';
+import rehypeToRemark from 'rehype-remark';
+import remarkToMarkdown from 'remark-stringify';
+import rehypeSanitize from 'rehype-sanitize';
+import rehypeMinifyWhitespace from 'rehype-minify-whitespace';
+
+const remarkParseConfig = { fences: true };
+const remarkStringifyConfig = { listItemIndent: '1', fences: true };
+const rehypeParseConfig = { fragment: true };
+
+export const markdownToHtml = markdown =>
+  unified()
+    .use(markdownToRemark, remarkParseConfig)
+    .use(remarkToRehype)
+    .use(rehypeSanitize)
+    .use(rehypeMinifyWhitespace)
+    .use(rehypeToHtml)
+    .processSync(markdown)
+    .contents;
+
+export const htmlToMarkdown = html =>
+  unified()
+    .use(htmlToRehype, rehypeParseConfig)
+    .use(rehypeSanitize)
+    .use(rehypeMinifyWhitespace)
+    .use(rehypeToRemark)
+    .use(remarkToMarkdown, remarkStringifyConfig)
+    .processSync(html)
+    .contents;