feat(editor): latex inline package (#11051)

blocksuite/affine/inlines/link/src/index.ts

@@ -3,4 +3,5 @@ export * from './command';
 export * from './exts';
 export * from './inline-spec';
 export * from './link-node';
+export * from './markdown';
 export * from './toolbar';

blocksuite/affine/inlines/link/src/markdown.ts

@@ -0,0 +1,62 @@
+import type { AffineTextAttributes } from '@blocksuite/affine-shared/types';
+import { InlineMarkdownExtension } from '@blocksuite/block-std/inline';
+
+export const LinkExtension = InlineMarkdownExtension<AffineTextAttributes>({
+  name: 'link',
+  pattern: /.*\[(.+?)\]\((.+?)\)$/,
+  action: ({ inlineEditor, prefixText, inlineRange, pattern, undoManager }) => {
+    const match = prefixText.match(pattern);
+    if (!match) return;
+
+    const linkText = match[1];
+    const linkUrl = match[2];
+    const annotatedText = match[0].slice(-linkText.length - linkUrl.length - 4);
+    const startIndex = inlineRange.index - annotatedText.length;
+
+    inlineEditor.insertText(
+      {
+        index: inlineRange.index,
+        length: 0,
+      },
+      ' '
+    );
+    inlineEditor.setInlineRange({
+      index: inlineRange.index + 1,
+      length: 0,
+    });
+
+    undoManager.stopCapturing();
+
+    // aaa[bbb](baidu.com) + space
+
+    // delete (baidu.com) + space
+    inlineEditor.deleteText({
+      index: startIndex + 1 + linkText.length + 1,
+      length: 1 + linkUrl.length + 1 + 1,
+    });
+    // delete [ and ]
+    inlineEditor.deleteText({
+      index: startIndex + 1 + linkText.length,
+      length: 1,
+    });
+    inlineEditor.deleteText({
+      index: startIndex,
+      length: 1,
+    });
+
+    inlineEditor.formatText(
+      {
+        index: startIndex,
+        length: linkText.length,
+      },
+      {
+        link: linkUrl,
+      }
+    );
+
+    inlineEditor.setInlineRange({
+      index: startIndex + linkText.length,
+      length: 0,
+    });
+  },
+});