4.6.5- CoreferenceResolution Module (#631)

packages/web/common/string/markdown.ts

@@ -0,0 +1,35 @@
+import TurndownService from 'turndown';
+// @ts-ignore
+import * as turndownPluginGfm from 'joplin-turndown-plugin-gfm';
+
+const turndownService = new TurndownService({
+  headingStyle: 'atx',
+  bulletListMarker: '-',
+  codeBlockStyle: 'fenced',
+  fence: '```',
+  emDelimiter: '_',
+  strongDelimiter: '**',
+  linkStyle: 'inlined',
+  linkReferenceStyle: 'full'
+});
+export const htmlStr2Md = (html: string) => {
+  // 浏览器，html字符串转dom
+  const parser = new DOMParser();
+  const dom = parser.parseFromString(html, 'text/html');
+
+  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(dom);
+};