From 31422f87f729bd35bcebfb277d08b230424e3618 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Wed, 19 Jan 2022 23:14:21 +0800
Subject: ...

---
 include/cru/xml/XmlNode.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'include/cru/xml/XmlNode.hpp')

diff --git a/include/cru/xml/XmlNode.hpp b/include/cru/xml/XmlNode.hpp
index 38f09d14..0972037a 100644
--- a/include/cru/xml/XmlNode.hpp
+++ b/include/cru/xml/XmlNode.hpp
@@ -90,6 +90,14 @@ class CRU_XML_API XmlElementNode : public XmlNode {
 
   Index GetChildCount() const { return children_.size(); }
   String GetAttribute(const String& key) const { return attributes_.at(key); }
+  std::optional<String> GetOptionalAttribute(const String& key) const {
+    auto it = attributes_.find(key);
+    if (it == attributes_.end()) {
+      return std::nullopt;
+    }
+
+    return it->second;
+  }
   XmlNode* GetChildAt(Index index) const { return children_[index]; }
 
   void AddAttribute(String key, String value);
-- 
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