优化

client/web/plugins/com.msgbyte.bbcode/src/bbcode/serialize.ts

@@ -0,0 +1,36 @@
+import bbcodeParser from './parser';
+import type { AstNode } from './type';
+import _isNil from 'lodash/isNil';
+
+function bbcodeNodeToPlainText(node: AstNode): string {
+  if (_isNil(node)) {
+    return '';
+  }
+
+  if (typeof node === 'string') {
+    return String(node);
+  } else {
+    if (node.tag === 'img') {
+      return '[图片]';
+    }
+    if (node.tag === 'emoji') {
+      return `:${node.content.join('')}:`;
+    }
+    if (node.tag === 'at') {
+      return `@${node.content.join('')}`;
+    }
+
+    return (node.content ?? [])
+      .map((sub) => bbcodeNodeToPlainText(sub))
+      .join('');
+  }
+}
+
+/**
+ * 将 BBCode 转化为普通的字符串
+ */
+export function bbcodeToPlainText(bbcode: string): string {
+  const ast = bbcodeParser.parse(bbcode);
+
+  return ast.map(bbcodeNodeToPlainText).join('');
+}