v4.6.5 (#620)

worker/html2md.js

@@ -0,0 +1,41 @@
+const { parentPort } = require('worker_threads');
+const TurndownService = require('turndown');
+const domino = require('domino-ext');
+const turndownPluginGfm = require('joplin-turndown-plugin-gfm');
+
+const turndownService = new TurndownService({
+  headingStyle: 'atx',
+  bulletListMarker: '-',
+  codeBlockStyle: 'fenced',
+  fence: '```',
+  emDelimiter: '_',
+  strongDelimiter: '**',
+  linkStyle: 'inlined',
+  linkReferenceStyle: 'full'
+});
+parentPort?.on('message', (html) => {
+  const md = html2md(html);
+
+  parentPort.postMessage(md);
+});
+
+const html2md = (html) => {
+  const window = domino.createWindow(html);
+  const document = window.document;
+
+  turndownService.remove(['i', 'script', 'iframe']);
+  turndownService.addRule('codeBlock', {
+    filter: 'pre',
+    replacement(_, node) {
+      const content = node.textContent?.trim() || '';
+      // @ts-ignore
+      const codeName = node?._attrsByQName?.class?.data?.trim() || '';
+
+      return `\n\`\`\`${codeName}\n${content}\n\`\`\`\n`;
+    }
+  });
+
+  turndownService.use(turndownPluginGfm.gfm);
+
+  return turndownService.turndown(document);
+};