Refactored code

include/utility/string.hpp

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <cctype>
+#include <string_view>
+
+namespace utility::string {
+    inline bool equals_ignore_case(const std::string_view str_1, const std::string_view str_2) noexcept {
+        return (str_1.size() == str_2.size()) && std::equal(str_1.begin(), str_1.end(), str_2.begin(), [](const char a, const char b) {
+            return std::tolower(a) == std::tolower(b);
+        });
+    }
+}