added node::remove method

include/fkYAML/node.hpp

@@ -1725,6 +1725,32 @@ class basic_node {
         return {*this};
     }
 
+    /// @brief Remove a mapping entry by key.
+    /// @tparam KeyType A type for the input key (any type convertible to node).
+    /// @param key A key identifying the mapping entry to remove.
+    /// @return true if an entry was found and removed, false otherwise.
+    template <typename KeyType>
+    bool remove(KeyType&& key)
+    {
+        basic_node key_node = std::forward<KeyType>(key);
+        basic_node& act_node = resolve_reference();
+        if FK_YAML_UNLIKELY (!act_node.is_mapping_impl())
+        {
+            throw type_error("remove() cannot be called on a non-mapping node.", get_type());
+        }
+
+        auto& map = *act_node.m_value.p_map;
+        for (auto itr = map.begin(); itr != map.end(); ++itr)
+        {
+            if (itr->first == key_node)
+            {
+                map.erase(itr);
+                return true;
+            }
+        }
+        return false;
+    }
+
 private:
     /// @brief Resolves anchor/alias reference and returns reference to an actual value node.
     /// @return Reference to an actual value node.

single_include/fkYAML/node.hpp

@@ -14375,6 +14375,32 @@ class basic_node {
         return {*this};
     }
 
+    /// @brief Erase a mapping entry by key.
+    /// @tparam KeyType A type for the input key (any type convertible to node).
+    /// @param key A key identifying the mapping entry to erase.
+    /// @return true if an entry was found and erased, false otherwise.
+    template <typename KeyType>
+    bool erase(KeyType&& key)
+    {
+        basic_node key_node = std::forward<KeyType>(key);
+        basic_node& act_node = resolve_reference();
+        if FK_YAML_UNLIKELY (!act_node.is_mapping_impl())
+        {
+            throw type_error("remove() cannot be called on a non-mapping node.", get_type());
+        }
+
+        auto& map = *act_node.m_value.p_map;
+        for (auto itr = map.begin(); itr != map.end(); ++itr)
+        {
+            if (itr->first == key_node)
+            {
+                map.erase(itr);
+                return true;
+            }
+        }
+        return false;
+    }
+
 private:
     /// @brief Resolves anchor/alias reference and returns reference to an actual value node.
     /// @return Reference to an actual value node.