diff --git a/source/cli/meojson/json.hpp b/source/cli/meojson/json.hpp
index 571d575..81ff96d 100644
--- a/source/cli/meojson/json.hpp
+++ b/source/cli/meojson/json.hpp
@@ -14,8 +14,6 @@
 
 #include "packed_bytes.hpp"
 
-#define MEOJSON_INLINE inline
-
 namespace json
 {
 template <typename string_t>
@@ -35,13 +33,17 @@ using wvalue = basic_value<std::wstring>;
 using warray = basic_array<std::wstring>;
 using wobject = basic_object<std::wstring>;
 
-using u16value = basic_value<std::u16string>;
-using u16array = basic_array<std::u16string>;
-using u16object = basic_object<std::u16string>;
-
-using u32value = basic_value<std::u32string>;
-using u32array = basic_array<std::u32string>;
-using u32object = basic_object<std::u32string>;
+namespace utils
+{
+    template <typename T>
+    using iterator_t = decltype(std::declval<T&>().begin());
+    template <typename T>
+    using remove_cvref_t = std::remove_cv_t<std::remove_reference_t<T>>;
+    template <typename T>
+    using iter_value_t = typename std::iterator_traits<remove_cvref_t<T>>::value_type;
+    template <typename R>
+    using range_value_t = iter_value_t<iterator_t<R>>;
+}
 
 // *********************************
 // *      basic_value declare      *
@@ -90,16 +92,33 @@ class basic_value
 
     basic_value(basic_array<string_t> arr);
     basic_value(basic_object<string_t> obj);
-    basic_value(std::initializer_list<std::pair<string_t, basic_value<string_t>>> init_list);
+    basic_value(std::initializer_list<typename basic_object<string_t>::value_type> init_list);
 
     // Constructed from raw data
     template <typename... args_t>
     basic_value(value_type type, args_t&&... args);
 
-    // Prohibit conversion of other types to basic_value
-    template <typename value_t>
+    template <typename collection_t,
+              std::enable_if_t<std::is_constructible_v<typename basic_array<string_t>::value_type,
+                                                       utils::range_value_t<collection_t>>,
+                               bool> = true>
+    basic_value(collection_t&& collection) : basic_value(basic_array<string_t>(std::forward<collection_t>(collection)))
+    {}
+    template <typename map_t, std::enable_if_t<std::is_constructible_v<typename basic_object<string_t>::value_type,
+                                                                       utils::range_value_t<map_t>>,
+                                               bool> = true>
+    basic_value(map_t&& map) : basic_value(basic_object<string_t>(std::forward<map_t>(map)))
+    {}
+
+    template <typename value_t, std::enable_if_t<!std::is_convertible_v<value_t, basic_value<string_t>>, bool> = true>
     basic_value(value_t) = delete;
 
+    // I don't know if you want to convert char to string or number, so I delete these constructors.
+    basic_value(char) = delete;
+    basic_value(wchar_t) = delete;
+    basic_value(char16_t) = delete;
+    basic_value(char32_t) = delete;
+
     ~basic_value();
 
     bool valid() const noexcept { return _type != value_type::invalid; }
@@ -175,6 +194,11 @@ class basic_value
         return format(indent, 0);
     }
 
+    template <typename value_t, template <typename...> typename vector_t = std::vector>
+    vector_t<value_t> to_vector() const;
+    template <typename value_t, template <typename...> typename map_t = std::map>
+    map_t<string_t, value_t> to_map() const;
+
     basic_value<string_t>& operator=(const basic_value<string_t>& rhs);
     basic_value<string_t>& operator=(basic_value<string_t>&&) noexcept;
 
@@ -261,19 +285,17 @@ class basic_array
     basic_array() = default;
     basic_array(const basic_array<string_t>& rhs) = default;
     basic_array(basic_array<string_t>&& rhs) noexcept = default;
-    basic_array(const raw_array& arr);
-    basic_array(raw_array&& arr) noexcept;
-    basic_array(std::initializer_list<typename raw_array::value_type> init_list);
+    basic_array(std::initializer_list<value_type> init_list);
     basic_array(typename raw_array::size_type size);
 
     explicit basic_array(const basic_value<string_t>& val);
     explicit basic_array(basic_value<string_t>&& val);
-    template <typename array_t, typename _ = std::enable_if_t<
-                                    std::is_constructible_v<value_type, typename std::decay_t<array_t>::value_type>>>
-    basic_array(array_t arr)
-    {
-        _array_data.assign(std::make_move_iterator(arr.begin()), std::make_move_iterator(arr.end()));
-    }
+
+    template <typename collection_t,
+              typename = std::enable_if_t<std::is_constructible_v<value_type, utils::range_value_t<collection_t>>>>
+    basic_array(collection_t arr)
+        : _array_data(std::make_move_iterator(arr.begin()), std::make_move_iterator(arr.end()))
+    {}
 
     ~basic_array() noexcept = default;
 
@@ -291,6 +313,8 @@ class basic_array
     {
         return format(indent, 0);
     }
+    template <typename value_t, template <typename...> typename vector_t = std::vector>
+    vector_t<value_t> to_vector() const;
 
     // Usage: get(key_1, key_2, ..., default_value);
     template <typename... key_then_default_value_t>
@@ -377,17 +401,13 @@ class basic_object
     basic_object() = default;
     basic_object(const basic_object<string_t>& rhs) = default;
     basic_object(basic_object<string_t>&& rhs) noexcept = default;
-    basic_object(const raw_object& raw_obj);
-    basic_object(raw_object&& raw_obj);
     basic_object(std::initializer_list<value_type> init_list);
     explicit basic_object(const basic_value<string_t>& val);
     explicit basic_object(basic_value<string_t>&& val);
-    template <typename map_t, typename _ = std::enable_if_t<
-                                  std::is_constructible_v<value_type, typename std::decay_t<map_t>::value_type>>>
-    basic_object(map_t map)
-    {
-        _object_data.insert(std::make_move_iterator(map.begin()), std::make_move_iterator(map.end()));
-    }
+    template <typename map_t,
+              typename = std::enable_if_t<std::is_constructible_v<value_type, utils::range_value_t<map_t>>>>
+    basic_object(map_t map) : _object_data(std::make_move_iterator(map.begin()), std::make_move_iterator(map.end()))
+    {}
 
     ~basic_object() = default;
 
@@ -405,6 +425,8 @@ class basic_object
     {
         return format(indent, 0);
     }
+    template <typename value_t, template <typename...> typename map_t = std::map>
+    map_t<string_t, value_t> to_map() const;
 
     // Usage: get(key_1, key_2, ..., default_value);
     template <typename... key_then_default_value_t>
@@ -532,6 +554,10 @@ class exception : public std::exception
 
 template <typename parsing_t>
 auto parse(const parsing_t& content);
+
+template <typename char_t>
+auto parse(char_t* content);
+
 template <typename istream_t,
           typename = std::enable_if_t<std::is_base_of_v<std::basic_istream<typename istream_t::char_type>, istream_t>>>
 auto parse(istream_t& istream, bool check_bom);
@@ -543,23 +569,15 @@ namespace literals
 {
     value operator""_json(const char* str, size_t len);
     wvalue operator""_json(const wchar_t* str, size_t len);
-    u16value operator""_json(const char16_t* str, size_t len);
-    u32value operator""_json(const char32_t* str, size_t len);
 
     value operator""_jvalue(const char* str, size_t len);
     wvalue operator""_jvalue(const wchar_t* str, size_t len);
-    u16value operator""_jvalue(const char16_t* str, size_t len);
-    u32value operator""_jvalue(const char32_t* str, size_t len);
 
     array operator""_jarray(const char* str, size_t len);
     warray operator""_jarray(const wchar_t* str, size_t len);
-    u16array operator""_jarray(const char16_t* str, size_t len);
-    u32array operator""_jarray(const char32_t* str, size_t len);
 
     object operator""_jobject(const char* str, size_t len);
     wobject operator""_jobject(const wchar_t* str, size_t len);
-    u16object operator""_jobject(const char16_t* str, size_t len);
-    u32object operator""_jobject(const char32_t* str, size_t len);
 }
 
 template <typename string_t = default_string_t>
@@ -596,131 +614,114 @@ static constexpr string_t null_string()
     return { 'n', 'u', 'l', 'l' };
 }
 
+template <typename string_t, typename any_t>
+string_t to_basic_string(any_t&& arg)
+{
+    if constexpr (std::is_same_v<string_t, std::string>) {
+        return std::to_string(std::forward<any_t>(arg));
+    }
+    else if constexpr (std::is_same_v<string_t, std::wstring>) {
+        return std::to_wstring(std::forward<any_t>(arg));
+    }
+    else {
+        static_assert(!sizeof(any_t), "Unsupported type");
+    }
+}
+
 template <typename string_t>
 static constexpr string_t unescape_string(const string_t& str);
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value() = default;
+inline basic_value<string_t>::basic_value() = default;
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(const basic_value<string_t>& rhs)
+inline basic_value<string_t>::basic_value(const basic_value<string_t>& rhs)
     : _type(rhs._type), _raw_data(deep_copy(rhs._raw_data))
-{
-    ;
-}
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(basic_value<string_t>&& rhs) noexcept = default;
+inline basic_value<string_t>::basic_value(basic_value<string_t>&& rhs) noexcept = default;
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(bool b)
+inline basic_value<string_t>::basic_value(bool b)
     : _type(value_type::boolean), _raw_data(string_t(b ? true_string<string_t>() : false_string<string_t>()))
-{
-    ;
-}
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(int num) : _type(value_type::number), _raw_data(std::to_string(num))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(int num)
+    : _type(value_type::number), _raw_data(to_basic_string<string_t>(num))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(unsigned num)
-    : _type(value_type::number), _raw_data(std::to_string(num))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(unsigned num)
+    : _type(value_type::number), _raw_data(to_basic_string<string_t>(num))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(long num) : _type(value_type::number), _raw_data(std::to_string(num))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(long num)
+    : _type(value_type::number), _raw_data(to_basic_string<string_t>(num))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(unsigned long num)
-    : _type(value_type::number), _raw_data(std::to_string(num))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(unsigned long num)
+    : _type(value_type::number), _raw_data(to_basic_string<string_t>(num))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(long long num)
-    : _type(value_type::number), _raw_data(std::to_string(num))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(long long num)
+    : _type(value_type::number), _raw_data(to_basic_string<string_t>(num))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(unsigned long long num)
-    : _type(value_type::number), _raw_data(std::to_string(num))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(unsigned long long num)
+    : _type(value_type::number), _raw_data(to_basic_string<string_t>(num))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(float num) : _type(value_type::number), _raw_data(std::to_string(num))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(float num)
+    : _type(value_type::number), _raw_data(to_basic_string<string_t>(num))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(double num)
-    : _type(value_type::number), _raw_data(std::to_string(num))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(double num)
+    : _type(value_type::number), _raw_data(to_basic_string<string_t>(num))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(long double num)
-    : _type(value_type::number), _raw_data(std::to_string(num))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(long double num)
+    : _type(value_type::number), _raw_data(to_basic_string<string_t>(num))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(const char_t* str)
-    : _type(value_type::string), _raw_data(string_t(str))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(const char_t* str) : _type(value_type::string), _raw_data(string_t(str))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(string_t str) : _type(value_type::string), _raw_data(std::move(str))
-{
-    ;
-}
+inline basic_value<string_t>::basic_value(string_t str) : _type(value_type::string), _raw_data(std::move(str))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(basic_array<string_t> arr)
+inline basic_value<string_t>::basic_value(basic_array<string_t> arr)
     : _type(value_type::array), _raw_data(std::make_unique<basic_array<string_t>>(std::move(arr)))
-{
-    ;
-}
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(basic_object<string_t> obj)
+inline basic_value<string_t>::basic_value(basic_object<string_t> obj)
     : _type(value_type::object), _raw_data(std::make_unique<basic_object<string_t>>(std::move(obj)))
-{
-    ;
-}
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::basic_value(
-    std::initializer_list<std::pair<string_t, basic_value<string_t>>> init_list)
+inline basic_value<string_t>::basic_value(std::initializer_list<typename basic_object<string_t>::value_type> init_list)
     : _type(value_type::object), _raw_data(std::make_unique<basic_object<string_t>>(init_list))
-{
-    ;
-}
+{}
 
 // for Pimpl
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>::~basic_value() = default;
+inline basic_value<string_t>::~basic_value() = default;
 
 template <typename string_t>
 template <typename value_t>
-MEOJSON_INLINE bool basic_value<string_t>::is() const noexcept
+inline bool basic_value<string_t>::is() const noexcept
 {
     if constexpr (std::is_same_v<basic_value<string_t>, value_t>) {
         return true;
@@ -746,44 +747,44 @@ MEOJSON_INLINE bool basic_value<string_t>::is() const noexcept
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_value<string_t>::contains(const string_t& key) const
+inline bool basic_value<string_t>::contains(const string_t& key) const
 {
     return is_object() && as_object().contains(key);
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_value<string_t>::contains(size_t pos) const
+inline bool basic_value<string_t>::contains(size_t pos) const
 {
     return is_array() && as_array().contains(pos);
 }
 
 template <typename string_t>
-MEOJSON_INLINE const basic_value<string_t>& basic_value<string_t>::at(size_t pos) const
+inline const basic_value<string_t>& basic_value<string_t>::at(size_t pos) const
 {
     return as_array().at(pos);
 }
 
 template <typename string_t>
-MEOJSON_INLINE const basic_value<string_t>& basic_value<string_t>::at(const string_t& key) const
+inline const basic_value<string_t>& basic_value<string_t>::at(const string_t& key) const
 {
     return as_object().at(key);
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_value<string_t>::erase(size_t pos)
+inline bool basic_value<string_t>::erase(size_t pos)
 {
     return as_array().erase(pos);
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_value<string_t>::erase(const string_t& key)
+inline bool basic_value<string_t>::erase(const string_t& key)
 {
     return as_object().erase(key);
 }
 
 template <typename string_t>
 template <typename... key_then_default_value_t>
-MEOJSON_INLINE auto basic_value<string_t>::get(key_then_default_value_t&&... keys_then_default_value) const
+inline auto basic_value<string_t>::get(key_then_default_value_t&&... keys_then_default_value) const
 {
     return get(std::forward_as_tuple(keys_then_default_value...),
                std::make_index_sequence<sizeof...(keys_then_default_value) - 1> {});
@@ -791,8 +792,8 @@ MEOJSON_INLINE auto basic_value<string_t>::get(key_then_default_value_t&&... key
 
 template <typename string_t>
 template <typename... key_then_default_value_t, size_t... keys_indexes_t>
-MEOJSON_INLINE auto basic_value<string_t>::get(std::tuple<key_then_default_value_t...> keys_then_default_value,
-                                               std::index_sequence<keys_indexes_t...>) const
+inline auto basic_value<string_t>::get(std::tuple<key_then_default_value_t...> keys_then_default_value,
+                                       std::index_sequence<keys_indexes_t...>) const
 {
     constexpr unsigned long default_value_index = sizeof...(key_then_default_value_t) - 1;
     return get_helper(std::get<default_value_index>(keys_then_default_value),
@@ -801,8 +802,8 @@ MEOJSON_INLINE auto basic_value<string_t>::get(std::tuple<key_then_default_value
 
 template <typename string_t>
 template <typename value_t, typename first_key_t, typename... rest_keys_t>
-MEOJSON_INLINE auto basic_value<string_t>::get_helper(const value_t& default_value, first_key_t&& first,
-                                                      rest_keys_t&&... rest) const
+inline auto basic_value<string_t>::get_helper(const value_t& default_value, first_key_t&& first,
+                                              rest_keys_t&&... rest) const
 {
     if constexpr (std::is_constructible_v<string_t, first_key_t>) {
         return is_object() ? as_object().get_helper(default_value, std::forward<first_key_t>(first),
@@ -821,7 +822,7 @@ MEOJSON_INLINE auto basic_value<string_t>::get_helper(const value_t& default_val
 
 template <typename string_t>
 template <typename value_t, typename unique_key_t>
-MEOJSON_INLINE auto basic_value<string_t>::get_helper(const value_t& default_value, unique_key_t&& first) const
+inline auto basic_value<string_t>::get_helper(const value_t& default_value, unique_key_t&& first) const
 {
     if constexpr (std::is_constructible_v<string_t, unique_key_t>) {
         return is_object() ? as_object().get_helper(default_value, std::forward<unique_key_t>(first)) : default_value;
@@ -836,7 +837,7 @@ MEOJSON_INLINE auto basic_value<string_t>::get_helper(const value_t& default_val
 
 template <typename string_t>
 template <typename... key_then_default_value_t>
-MEOJSON_INLINE auto basic_array<string_t>::get(key_then_default_value_t&&... keys_then_default_value) const
+inline auto basic_array<string_t>::get(key_then_default_value_t&&... keys_then_default_value) const
 {
     return get(std::forward_as_tuple(keys_then_default_value...),
                std::make_index_sequence<sizeof...(keys_then_default_value) - 1> {});
@@ -844,8 +845,8 @@ MEOJSON_INLINE auto basic_array<string_t>::get(key_then_default_value_t&&... key
 
 template <typename string_t>
 template <typename... key_then_default_value_t, size_t... keys_indexes_t>
-MEOJSON_INLINE auto basic_array<string_t>::get(std::tuple<key_then_default_value_t...> keys_then_default_value,
-                                               std::index_sequence<keys_indexes_t...>) const
+inline auto basic_array<string_t>::get(std::tuple<key_then_default_value_t...> keys_then_default_value,
+                                       std::index_sequence<keys_indexes_t...>) const
 {
     constexpr unsigned long default_value_index = sizeof...(key_then_default_value_t) - 1;
     return get_helper(std::get<default_value_index>(keys_then_default_value),
@@ -854,7 +855,7 @@ MEOJSON_INLINE auto basic_array<string_t>::get(std::tuple<key_then_default_value
 
 template <typename string_t>
 template <typename... key_then_default_value_t>
-MEOJSON_INLINE auto basic_object<string_t>::get(key_then_default_value_t&&... keys_then_default_value) const
+inline auto basic_object<string_t>::get(key_then_default_value_t&&... keys_then_default_value) const
 {
     return get(std::forward_as_tuple(keys_then_default_value...),
                std::make_index_sequence<sizeof...(keys_then_default_value) - 1> {});
@@ -862,8 +863,8 @@ MEOJSON_INLINE auto basic_object<string_t>::get(key_then_default_value_t&&... ke
 
 template <typename string_t>
 template <typename... key_then_default_value_t, size_t... keys_indexes_t>
-MEOJSON_INLINE auto basic_object<string_t>::get(std::tuple<key_then_default_value_t...> keys_then_default_value,
-                                                std::index_sequence<keys_indexes_t...>) const
+inline auto basic_object<string_t>::get(std::tuple<key_then_default_value_t...> keys_then_default_value,
+                                        std::index_sequence<keys_indexes_t...>) const
 {
     constexpr unsigned long default_value_index = sizeof...(key_then_default_value_t) - 1;
     return get_helper(std::get<default_value_index>(keys_then_default_value),
@@ -872,20 +873,20 @@ MEOJSON_INLINE auto basic_object<string_t>::get(std::tuple<key_then_default_valu
 
 template <typename string_t>
 template <typename value_t>
-MEOJSON_INLINE std::optional<value_t> basic_value<string_t>::find(size_t pos) const
+inline std::optional<value_t> basic_value<string_t>::find(size_t pos) const
 {
     return is_array() ? as_array().template find<value_t>(pos) : std::nullopt;
 }
 
 template <typename string_t>
 template <typename value_t>
-MEOJSON_INLINE std::optional<value_t> basic_value<string_t>::find(const string_t& key) const
+inline std::optional<value_t> basic_value<string_t>::find(const string_t& key) const
 {
     return is_object() ? as_object().template find<value_t>(key) : std::nullopt;
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_value<string_t>::as_boolean() const
+inline bool basic_value<string_t>::as_boolean() const
 {
     if (is_boolean()) {
         if (const string_t& b_str = as_basic_type_str(); b_str == true_string<string_t>()) {
@@ -904,7 +905,7 @@ MEOJSON_INLINE bool basic_value<string_t>::as_boolean() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE int basic_value<string_t>::as_integer() const
+inline int basic_value<string_t>::as_integer() const
 {
     if (is_number()) {
         return std::stoi(as_basic_type_str());
@@ -915,14 +916,14 @@ MEOJSON_INLINE int basic_value<string_t>::as_integer() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE unsigned basic_value<string_t>::as_unsigned() const
+inline unsigned basic_value<string_t>::as_unsigned() const
 {
     // I don't know why there is no std::stou.
     return static_cast<unsigned>(as_unsigned_long());
 }
 
 template <typename string_t>
-MEOJSON_INLINE long basic_value<string_t>::as_long() const
+inline long basic_value<string_t>::as_long() const
 {
     if (is_number()) {
         return std::stol(as_basic_type_str());
@@ -933,7 +934,7 @@ MEOJSON_INLINE long basic_value<string_t>::as_long() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE unsigned long basic_value<string_t>::as_unsigned_long() const
+inline unsigned long basic_value<string_t>::as_unsigned_long() const
 {
     if (is_number()) {
         return std::stoul(as_basic_type_str());
@@ -944,7 +945,7 @@ MEOJSON_INLINE unsigned long basic_value<string_t>::as_unsigned_long() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE long long basic_value<string_t>::as_long_long() const
+inline long long basic_value<string_t>::as_long_long() const
 {
     if (is_number()) {
         return std::stoll(as_basic_type_str());
@@ -955,7 +956,7 @@ MEOJSON_INLINE long long basic_value<string_t>::as_long_long() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE unsigned long long basic_value<string_t>::as_unsigned_long_long() const
+inline unsigned long long basic_value<string_t>::as_unsigned_long_long() const
 {
     if (is_number()) {
         return std::stoull(as_basic_type_str());
@@ -966,7 +967,7 @@ MEOJSON_INLINE unsigned long long basic_value<string_t>::as_unsigned_long_long()
 }
 
 template <typename string_t>
-MEOJSON_INLINE float basic_value<string_t>::as_float() const
+inline float basic_value<string_t>::as_float() const
 {
     if (is_number()) {
         return std::stof(as_basic_type_str());
@@ -977,7 +978,7 @@ MEOJSON_INLINE float basic_value<string_t>::as_float() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE double basic_value<string_t>::as_double() const
+inline double basic_value<string_t>::as_double() const
 {
     if (is_number()) {
         return std::stod(as_basic_type_str());
@@ -988,7 +989,7 @@ MEOJSON_INLINE double basic_value<string_t>::as_double() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE long double basic_value<string_t>::as_long_double() const
+inline long double basic_value<string_t>::as_long_double() const
 {
     if (is_number()) {
         return std::stold(as_basic_type_str());
@@ -999,7 +1000,7 @@ MEOJSON_INLINE long double basic_value<string_t>::as_long_double() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE string_t basic_value<string_t>::as_string() const
+inline string_t basic_value<string_t>::as_string() const
 {
     if (is_string()) {
         return as_basic_type_str();
@@ -1010,7 +1011,7 @@ MEOJSON_INLINE string_t basic_value<string_t>::as_string() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE const basic_array<string_t>& basic_value<string_t>::as_array() const
+inline const basic_array<string_t>& basic_value<string_t>::as_array() const
 {
     if (is_array()) {
         return *std::get<array_ptr>(_raw_data);
@@ -1020,7 +1021,7 @@ MEOJSON_INLINE const basic_array<string_t>& basic_value<string_t>::as_array() co
 }
 
 template <typename string_t>
-MEOJSON_INLINE const basic_object<string_t>& basic_value<string_t>::as_object() const
+inline const basic_object<string_t>& basic_value<string_t>::as_object() const
 {
     if (is_object()) {
         return *std::get<object_ptr>(_raw_data);
@@ -1030,7 +1031,7 @@ MEOJSON_INLINE const basic_object<string_t>& basic_value<string_t>::as_object()
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t>& basic_value<string_t>::as_array()
+inline basic_array<string_t>& basic_value<string_t>::as_array()
 {
     if (empty()) {
         *this = basic_array<string_t>();
@@ -1044,7 +1045,7 @@ MEOJSON_INLINE basic_array<string_t>& basic_value<string_t>::as_array()
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_object<string_t>& basic_value<string_t>::as_object()
+inline basic_object<string_t>& basic_value<string_t>::as_object()
 {
     if (empty()) {
         *this = basic_object<string_t>();
@@ -1059,26 +1060,26 @@ MEOJSON_INLINE basic_object<string_t>& basic_value<string_t>::as_object()
 
 template <typename string_t>
 template <typename value_t>
-MEOJSON_INLINE value_t basic_value<string_t>::as() const
+inline value_t basic_value<string_t>::as() const
 {
     return static_cast<value_t>(*this);
 }
 
 template <typename string_t>
-MEOJSON_INLINE const string_t& basic_value<string_t>::as_basic_type_str() const
+inline const string_t& basic_value<string_t>::as_basic_type_str() const
 {
     return std::get<string_t>(_raw_data);
 }
 
 template <typename string_t>
-MEOJSON_INLINE string_t& basic_value<string_t>::as_basic_type_str()
+inline string_t& basic_value<string_t>::as_basic_type_str()
 {
     return std::get<string_t>(_raw_data);
 }
 
 template <typename string_t>
 template <typename... args_t>
-MEOJSON_INLINE decltype(auto) basic_value<string_t>::emplace(args_t&&... args)
+inline decltype(auto) basic_value<string_t>::emplace(args_t&&... args)
 {
     constexpr bool is_array_args = std::is_constructible_v<typename basic_array<string_t>::value_type, args_t...>;
     constexpr bool is_object_args = std::is_constructible_v<typename basic_object<string_t>::value_type, args_t...>;
@@ -1095,26 +1096,26 @@ MEOJSON_INLINE decltype(auto) basic_value<string_t>::emplace(args_t&&... args)
 
 template <typename string_t>
 template <typename... args_t>
-MEOJSON_INLINE decltype(auto) basic_value<string_t>::array_emplace(args_t&&... args)
+inline decltype(auto) basic_value<string_t>::array_emplace(args_t&&... args)
 {
     return emplace(std::forward<args_t>(args)...);
 }
 
 template <typename string_t>
 template <typename... args_t>
-MEOJSON_INLINE decltype(auto) basic_value<string_t>::object_emplace(args_t&&... args)
+inline decltype(auto) basic_value<string_t>::object_emplace(args_t&&... args)
 {
     return emplace(std::forward<args_t>(args)...);
 }
 
 template <typename string_t>
-MEOJSON_INLINE void basic_value<string_t>::clear() noexcept
+inline void basic_value<string_t>::clear() noexcept
 {
     *this = basic_value<string_t>();
 }
 
 template <typename string_t>
-MEOJSON_INLINE string_t basic_value<string_t>::to_string() const
+inline string_t basic_value<string_t>::to_string() const
 {
     switch (_type) {
     case value_type::null:
@@ -1134,7 +1135,7 @@ MEOJSON_INLINE string_t basic_value<string_t>::to_string() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE string_t basic_value<string_t>::format(size_t indent, size_t indent_times) const
+inline string_t basic_value<string_t>::format(size_t indent, size_t indent_times) const
 {
     switch (_type) {
     case value_type::null:
@@ -1152,7 +1153,21 @@ MEOJSON_INLINE string_t basic_value<string_t>::format(size_t indent, size_t inde
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator=(const basic_value<string_t>& rhs)
+template <typename value_t, template <typename...> typename vector_t>
+inline vector_t<value_t> basic_value<string_t>::to_vector() const
+{
+    return as_array().template to_vector<value_t, vector_t>();
+}
+
+template <typename string_t>
+template <typename value_t, template <typename...> typename map_t>
+inline map_t<string_t, value_t> basic_value<string_t>::to_map() const
+{
+    return as_object().template to_map<value_t, map_t>();
+}
+
+template <typename string_t>
+inline basic_value<string_t>& basic_value<string_t>::operator=(const basic_value<string_t>& rhs)
 {
     _type = rhs._type;
     _raw_data = deep_copy(rhs._raw_data);
@@ -1161,10 +1176,10 @@ MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator=(const bas
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator=(basic_value<string_t>&& rhs) noexcept = default;
+inline basic_value<string_t>& basic_value<string_t>::operator=(basic_value<string_t>&& rhs) noexcept = default;
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_value<string_t>::operator==(const basic_value<string_t>& rhs) const
+inline bool basic_value<string_t>::operator==(const basic_value<string_t>& rhs) const
 {
     if (_type != rhs._type) return false;
 
@@ -1185,7 +1200,7 @@ MEOJSON_INLINE bool basic_value<string_t>::operator==(const basic_value<string_t
 }
 
 template <typename string_t>
-MEOJSON_INLINE const basic_value<string_t>& basic_value<string_t>::operator[](size_t pos) const
+inline const basic_value<string_t>& basic_value<string_t>::operator[](size_t pos) const
 {
     // basic_array not support to create by operator[]
 
@@ -1193,7 +1208,7 @@ MEOJSON_INLINE const basic_value<string_t>& basic_value<string_t>::operator[](si
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator[](size_t pos)
+inline basic_value<string_t>& basic_value<string_t>::operator[](size_t pos)
 {
     // basic_array not support to create by operator[]
 
@@ -1201,7 +1216,7 @@ MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator[](size_t p
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator[](const string_t& key)
+inline basic_value<string_t>& basic_value<string_t>::operator[](const string_t& key)
 {
     if (empty()) {
         *this = basic_object<string_t>();
@@ -1211,7 +1226,7 @@ MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator[](const st
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator[](string_t&& key)
+inline basic_value<string_t>& basic_value<string_t>::operator[](string_t&& key)
 {
     if (empty()) {
         *this = basic_object<string_t>();
@@ -1221,76 +1236,76 @@ MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator[](string_t
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t> basic_value<string_t>::operator|(const basic_object<string_t>& rhs) const&
+inline basic_value<string_t> basic_value<string_t>::operator|(const basic_object<string_t>& rhs) const&
 {
     return as_object() | rhs;
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t> basic_value<string_t>::operator|(basic_object<string_t>&& rhs) const&
+inline basic_value<string_t> basic_value<string_t>::operator|(basic_object<string_t>&& rhs) const&
 {
     return as_object() | std::move(rhs);
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t> basic_value<string_t>::operator|(const basic_object<string_t>& rhs) &&
+inline basic_value<string_t> basic_value<string_t>::operator|(const basic_object<string_t>& rhs) &&
 {
     return std::move(as_object()) | rhs;
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t> basic_value<string_t>::operator|(basic_object<string_t>&& rhs) &&
+inline basic_value<string_t> basic_value<string_t>::operator|(basic_object<string_t>&& rhs) &&
 {
     return std::move(as_object()) | std::move(rhs);
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator|=(const basic_object<string_t>& rhs)
+inline basic_value<string_t>& basic_value<string_t>::operator|=(const basic_object<string_t>& rhs)
 {
     as_object() |= rhs;
     return *this;
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator|=(basic_object<string_t>&& rhs)
+inline basic_value<string_t>& basic_value<string_t>::operator|=(basic_object<string_t>&& rhs)
 {
     as_object() |= std::move(rhs);
     return *this;
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t> basic_value<string_t>::operator+(const basic_array<string_t>& rhs) const&
+inline basic_value<string_t> basic_value<string_t>::operator+(const basic_array<string_t>& rhs) const&
 {
     return as_array() + rhs;
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t> basic_value<string_t>::operator+(basic_array<string_t>&& rhs) const&
+inline basic_value<string_t> basic_value<string_t>::operator+(basic_array<string_t>&& rhs) const&
 {
     return as_array() + std::move(rhs);
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t> basic_value<string_t>::operator+(const basic_array<string_t>& rhs) &&
+inline basic_value<string_t> basic_value<string_t>::operator+(const basic_array<string_t>& rhs) &&
 {
     return std::move(as_array()) + rhs;
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t> basic_value<string_t>::operator+(basic_array<string_t>&& rhs) &&
+inline basic_value<string_t> basic_value<string_t>::operator+(basic_array<string_t>&& rhs) &&
 {
     return std::move(as_array()) + std::move(rhs);
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator+=(const basic_array<string_t>& rhs)
+inline basic_value<string_t>& basic_value<string_t>::operator+=(const basic_array<string_t>& rhs)
 {
     as_array() += rhs;
     return *this;
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator+=(basic_array<string_t>&& rhs)
+inline basic_value<string_t>& basic_value<string_t>::operator+=(basic_array<string_t>&& rhs)
 {
     as_array() += std::move(rhs);
     return *this;
@@ -1298,14 +1313,14 @@ MEOJSON_INLINE basic_value<string_t>& basic_value<string_t>::operator+=(basic_ar
 
 template <typename string_t>
 template <typename... args_t>
-basic_value<string_t>::basic_value(value_type type, args_t&&... args)
+inline basic_value<string_t>::basic_value(value_type type, args_t&&... args)
     : _type(type), _raw_data(std::forward<args_t>(args)...)
 {
     static_assert(std::is_constructible_v<var_t, args_t...>, "Parameter can't be used to construct a var_t");
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_value<string_t>::var_t basic_value<string_t>::deep_copy(const var_t& src)
+inline typename basic_value<string_t>::var_t basic_value<string_t>::deep_copy(const var_t& src)
 {
     var_t dst;
     if (const auto string_ptr = std::get_if<string_t>(&src)) {
@@ -1329,64 +1344,43 @@ MEOJSON_INLINE typename basic_value<string_t>::var_t basic_value<string_t>::deep
 // ******************************
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t>::basic_array(const raw_array& arr) : _array_data(arr)
-{
-    ;
-}
+inline basic_array<string_t>::basic_array(std::initializer_list<value_type> init_list) : _array_data(init_list)
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t>::basic_array(raw_array&& arr) noexcept : _array_data(std::move(arr))
-{
-    ;
-}
+inline basic_array<string_t>::basic_array(typename raw_array::size_type size) : _array_data(size)
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t>::basic_array(std::initializer_list<value_type> init_list) : _array_data(init_list)
-{
-    ;
-}
+inline basic_array<string_t>::basic_array(const basic_value<string_t>& val) : basic_array<string_t>(val.as_array())
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t>::basic_array(typename raw_array::size_type size) : _array_data(size)
-{
-    ;
-}
-
-template <typename string_t>
-MEOJSON_INLINE basic_array<string_t>::basic_array(const basic_value<string_t>& val)
-    : basic_array<string_t>(val.as_array())
-{
-    ;
-}
-
-template <typename string_t>
-MEOJSON_INLINE basic_array<string_t>::basic_array(basic_value<string_t>&& val)
+inline basic_array<string_t>::basic_array(basic_value<string_t>&& val)
     : basic_array<string_t>(std::move(val.as_array()))
-{
-    ;
-}
+{}
 
 template <typename string_t>
-MEOJSON_INLINE void basic_array<string_t>::clear() noexcept
+inline void basic_array<string_t>::clear() noexcept
 {
     _array_data.clear();
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_array<string_t>::erase(size_t pos)
+inline bool basic_array<string_t>::erase(size_t pos)
 {
     return erase(_array_data.begin() + pos);
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_array<string_t>::erase(iterator iter)
+inline bool basic_array<string_t>::erase(iterator iter)
 {
     return _array_data.erase(iter) != _array_data.end();
 }
 
 template <typename string_t>
 template <typename... args_t>
-MEOJSON_INLINE decltype(auto) basic_array<string_t>::emplace_back(args_t&&... args)
+inline decltype(auto) basic_array<string_t>::emplace_back(args_t&&... args)
 {
     static_assert(std::is_constructible_v<value_type, args_t...>,
                   "Parameter can't be used to construct a raw_array::value_type");
@@ -1395,19 +1389,19 @@ MEOJSON_INLINE decltype(auto) basic_array<string_t>::emplace_back(args_t&&... ar
 
 template <typename string_t>
 template <typename... args_t>
-MEOJSON_INLINE decltype(auto) basic_array<string_t>::push_back(args_t&&... args)
+inline decltype(auto) basic_array<string_t>::push_back(args_t&&... args)
 {
     return emplace_back(std::forward<args_t>(args)...);
 }
 
 template <typename string_t>
-MEOJSON_INLINE const basic_value<string_t>& basic_array<string_t>::at(size_t pos) const
+inline const basic_value<string_t>& basic_array<string_t>::at(size_t pos) const
 {
     return _array_data.at(pos);
 }
 
 template <typename string_t>
-MEOJSON_INLINE string_t basic_array<string_t>::to_string() const
+inline string_t basic_array<string_t>::to_string() const
 {
     string_t str { '[' };
     for (auto iter = _array_data.cbegin(); iter != _array_data.cend();) {
@@ -1421,7 +1415,7 @@ MEOJSON_INLINE string_t basic_array<string_t>::to_string() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE string_t basic_array<string_t>::format(size_t indent, size_t indent_times) const
+inline string_t basic_array<string_t>::format(size_t indent, size_t indent_times) const
 {
     const string_t tail_indent(indent * indent_times, ' ');
     const string_t body_indent(indent * (indent_times + 1), ' ');
@@ -1438,10 +1432,44 @@ MEOJSON_INLINE string_t basic_array<string_t>::format(size_t indent, size_t inde
     return str;
 }
 
+namespace _to_vector_helper
+{
+    template <typename T>
+    class has_emplace_back
+    {
+        template <typename U>
+        static auto test(int) -> decltype(std::declval<U>().emplace_back(), std::true_type());
+
+        template <typename U>
+        static std::false_type test(...);
+
+    public:
+        static constexpr bool value = decltype(test<T>(0))::value;
+    };
+}
+
+template <typename string_t>
+template <typename value_t, template <typename...> typename vector_t>
+inline vector_t<value_t> basic_array<string_t>::to_vector() const
+{
+
+    vector_t<value_t> result;
+    if constexpr (_to_vector_helper::has_emplace_back<vector_t<value_t>>::value) {
+        for (const auto& elem : _array_data) {
+            result.emplace_back(elem.template as<value_t>());
+        }
+    }
+    else {
+        for (const auto& elem : _array_data) {
+            result.emplace(elem.template as<value_t>());
+        }
+    }
+    return result;
+}
+
 template <typename string_t>
 template <typename value_t, typename... rest_keys_t>
-MEOJSON_INLINE auto basic_array<string_t>::get_helper(const value_t& default_value, size_t pos,
-                                                      rest_keys_t&&... rest) const
+inline auto basic_array<string_t>::get_helper(const value_t& default_value, size_t pos, rest_keys_t&&... rest) const
 {
     constexpr bool is_json = std::is_same_v<basic_value<string_t>, value_t> ||
                              std::is_same_v<basic_array<string_t>, value_t> ||
@@ -1462,7 +1490,7 @@ MEOJSON_INLINE auto basic_array<string_t>::get_helper(const value_t& default_val
 
 template <typename string_t>
 template <typename value_t>
-MEOJSON_INLINE auto basic_array<string_t>::get_helper(const value_t& default_value, size_t pos) const
+inline auto basic_array<string_t>::get_helper(const value_t& default_value, size_t pos) const
 {
     constexpr bool is_json = std::is_same_v<basic_value<string_t>, value_t> ||
                              std::is_same_v<basic_array<string_t>, value_t> ||
@@ -1499,7 +1527,7 @@ MEOJSON_INLINE auto basic_array<string_t>::get_helper(const value_t& default_val
 
 template <typename string_t>
 template <typename value_t>
-MEOJSON_INLINE std::optional<value_t> basic_array<string_t>::find(size_t pos) const
+inline std::optional<value_t> basic_array<string_t>::find(size_t pos) const
 {
     static_assert(std::is_constructible_v<value_t, basic_value<string_t>>,
                   "Type can NOT be constructed by basic_value");
@@ -1511,91 +1539,91 @@ MEOJSON_INLINE std::optional<value_t> basic_array<string_t>::find(size_t pos) co
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::iterator basic_array<string_t>::begin() noexcept
+inline typename basic_array<string_t>::iterator basic_array<string_t>::begin() noexcept
 {
     return _array_data.begin();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::iterator basic_array<string_t>::end() noexcept
+inline typename basic_array<string_t>::iterator basic_array<string_t>::end() noexcept
 {
     return _array_data.end();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::const_iterator basic_array<string_t>::begin() const noexcept
+inline typename basic_array<string_t>::const_iterator basic_array<string_t>::begin() const noexcept
 {
     return _array_data.begin();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::const_iterator basic_array<string_t>::end() const noexcept
+inline typename basic_array<string_t>::const_iterator basic_array<string_t>::end() const noexcept
 {
     return _array_data.end();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::const_iterator basic_array<string_t>::cbegin() const noexcept
+inline typename basic_array<string_t>::const_iterator basic_array<string_t>::cbegin() const noexcept
 {
     return _array_data.cbegin();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::const_iterator basic_array<string_t>::cend() const noexcept
+inline typename basic_array<string_t>::const_iterator basic_array<string_t>::cend() const noexcept
 {
     return _array_data.cend();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::reverse_iterator basic_array<string_t>::rbegin() noexcept
+inline typename basic_array<string_t>::reverse_iterator basic_array<string_t>::rbegin() noexcept
 {
     return _array_data.rbegin();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::reverse_iterator basic_array<string_t>::rend() noexcept
+inline typename basic_array<string_t>::reverse_iterator basic_array<string_t>::rend() noexcept
 {
     return _array_data.rend();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::const_reverse_iterator basic_array<string_t>::rbegin() const noexcept
+inline typename basic_array<string_t>::const_reverse_iterator basic_array<string_t>::rbegin() const noexcept
 {
     return _array_data.rbegin();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::const_reverse_iterator basic_array<string_t>::rend() const noexcept
+inline typename basic_array<string_t>::const_reverse_iterator basic_array<string_t>::rend() const noexcept
 {
     return _array_data.rend();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::const_reverse_iterator basic_array<string_t>::crbegin() const noexcept
+inline typename basic_array<string_t>::const_reverse_iterator basic_array<string_t>::crbegin() const noexcept
 {
     return _array_data.crbegin();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_array<string_t>::const_reverse_iterator basic_array<string_t>::crend() const noexcept
+inline typename basic_array<string_t>::const_reverse_iterator basic_array<string_t>::crend() const noexcept
 {
     return _array_data.crend();
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_array<string_t>::operator[](size_t pos)
+inline basic_value<string_t>& basic_array<string_t>::operator[](size_t pos)
 {
     return _array_data[pos];
 }
 
 template <typename string_t>
-MEOJSON_INLINE const basic_value<string_t>& basic_array<string_t>::operator[](size_t pos) const
+inline const basic_value<string_t>& basic_array<string_t>::operator[](size_t pos) const
 {
     return _array_data[pos];
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t> basic_array<string_t>::operator+(const basic_array<string_t>& rhs) const&
+inline basic_array<string_t> basic_array<string_t>::operator+(const basic_array<string_t>& rhs) const&
 {
     basic_array<string_t> temp = *this;
     temp._array_data.insert(_array_data.end(), rhs.begin(), rhs.end());
@@ -1603,7 +1631,7 @@ MEOJSON_INLINE basic_array<string_t> basic_array<string_t>::operator+(const basi
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t> basic_array<string_t>::operator+(basic_array<string_t>&& rhs) const&
+inline basic_array<string_t> basic_array<string_t>::operator+(basic_array<string_t>&& rhs) const&
 {
     basic_array<string_t> temp = *this;
     temp._array_data.insert(_array_data.end(), std::make_move_iterator(rhs.begin()),
@@ -1612,35 +1640,35 @@ MEOJSON_INLINE basic_array<string_t> basic_array<string_t>::operator+(basic_arra
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t> basic_array<string_t>::operator+(const basic_array<string_t>& rhs) &&
+inline basic_array<string_t> basic_array<string_t>::operator+(const basic_array<string_t>& rhs) &&
 {
     _array_data.insert(_array_data.end(), rhs.begin(), rhs.end());
     return std::move(*this);
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t> basic_array<string_t>::operator+(basic_array<string_t>&& rhs) &&
+inline basic_array<string_t> basic_array<string_t>::operator+(basic_array<string_t>&& rhs) &&
 {
     _array_data.insert(_array_data.end(), std::make_move_iterator(rhs.begin()), std::make_move_iterator(rhs.end()));
     return std::move(*this);
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t>& basic_array<string_t>::operator+=(const basic_array<string_t>& rhs)
+inline basic_array<string_t>& basic_array<string_t>::operator+=(const basic_array<string_t>& rhs)
 {
     _array_data.insert(_array_data.end(), rhs.begin(), rhs.end());
     return *this;
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_array<string_t>& basic_array<string_t>::operator+=(basic_array<string_t>&& rhs)
+inline basic_array<string_t>& basic_array<string_t>::operator+=(basic_array<string_t>&& rhs)
 {
     _array_data.insert(_array_data.end(), std::make_move_iterator(rhs.begin()), std::make_move_iterator(rhs.end()));
     return *this;
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_array<string_t>::operator==(const basic_array<string_t>& rhs) const
+inline bool basic_array<string_t>::operator==(const basic_array<string_t>& rhs) const
 {
     return _array_data == rhs._array_data;
 }
@@ -1650,72 +1678,52 @@ MEOJSON_INLINE bool basic_array<string_t>::operator==(const basic_array<string_t
 // *******************************
 
 template <typename string_t>
-MEOJSON_INLINE basic_object<string_t>::basic_object(const raw_object& raw_obj) : _object_data(raw_obj)
-{
-    ;
-}
-
-template <typename string_t>
-MEOJSON_INLINE basic_object<string_t>::basic_object(raw_object&& raw_obj) : _object_data(std::move(raw_obj))
-{
-    ;
-}
-
-template <typename string_t>
-MEOJSON_INLINE basic_object<string_t>::basic_object(std::initializer_list<typename raw_object::value_type> init_list)
-{
-    for (const auto& [key, val] : init_list) {
-        emplace(key, val);
-    }
-}
+inline basic_object<string_t>::basic_object(std::initializer_list<value_type> init_list)
+    : _object_data(std::make_move_iterator(init_list.begin()), std::make_move_iterator(init_list.end()))
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_object<string_t>::basic_object(const basic_value<string_t>& val)
-    : basic_object<string_t>(val.as_object())
-{
-    ;
-}
+inline basic_object<string_t>::basic_object(const basic_value<string_t>& val) : basic_object<string_t>(val.as_object())
+{}
 
 template <typename string_t>
-MEOJSON_INLINE basic_object<string_t>::basic_object(basic_value<string_t>&& val)
+inline basic_object<string_t>::basic_object(basic_value<string_t>&& val)
     : basic_object<string_t>(std::move(val.as_object()))
-{
-    ;
-}
+{}
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_object<string_t>::contains(const string_t& key) const
+inline bool basic_object<string_t>::contains(const string_t& key) const
 {
     return _object_data.find(key) != _object_data.cend();
 }
 
 template <typename string_t>
-MEOJSON_INLINE const basic_value<string_t>& basic_object<string_t>::at(const string_t& key) const
+inline const basic_value<string_t>& basic_object<string_t>::at(const string_t& key) const
 {
     return _object_data.at(key);
 }
 
 template <typename string_t>
-MEOJSON_INLINE void basic_object<string_t>::clear() noexcept
+inline void basic_object<string_t>::clear() noexcept
 {
     _object_data.clear();
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_object<string_t>::erase(const string_t& key)
+inline bool basic_object<string_t>::erase(const string_t& key)
 {
     return _object_data.erase(key) > 0 ? true : false;
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_object<string_t>::erase(iterator iter)
+inline bool basic_object<string_t>::erase(iterator iter)
 {
     return _object_data.erase(iter) != _object_data.end();
 }
 
 template <typename string_t>
 template <typename... args_t>
-MEOJSON_INLINE decltype(auto) basic_object<string_t>::emplace(args_t&&... args)
+inline decltype(auto) basic_object<string_t>::emplace(args_t&&... args)
 {
     static_assert(std::is_constructible_v<value_type, args_t...>,
                   "Parameter can't be used to construct a raw_object::value_type");
@@ -1724,13 +1732,13 @@ MEOJSON_INLINE decltype(auto) basic_object<string_t>::emplace(args_t&&... args)
 
 template <typename string_t>
 template <typename... args_t>
-MEOJSON_INLINE decltype(auto) basic_object<string_t>::insert(args_t&&... args)
+inline decltype(auto) basic_object<string_t>::insert(args_t&&... args)
 {
     return emplace(std::forward<args_t>(args)...);
 }
 
 template <typename string_t>
-MEOJSON_INLINE string_t basic_object<string_t>::to_string() const
+inline string_t basic_object<string_t>::to_string() const
 {
     string_t str { '{' };
     for (auto iter = _object_data.cbegin(); iter != _object_data.cend();) {
@@ -1745,7 +1753,7 @@ MEOJSON_INLINE string_t basic_object<string_t>::to_string() const
 }
 
 template <typename string_t>
-MEOJSON_INLINE string_t basic_object<string_t>::format(size_t indent, size_t indent_times) const
+inline string_t basic_object<string_t>::format(size_t indent, size_t indent_times) const
 {
     const string_t tail_indent(indent * indent_times, ' ');
     const string_t body_indent(indent * (indent_times + 1), ' ');
@@ -1764,10 +1772,21 @@ MEOJSON_INLINE string_t basic_object<string_t>::format(size_t indent, size_t ind
     return str;
 }
 
+template <typename string_t>
+template <typename value_t, template <typename...> typename map_t>
+inline map_t<string_t, value_t> basic_object<string_t>::to_map() const
+{
+    map_t<string_t, value_t> result;
+    for (const auto& [key, val] : _object_data) {
+        result.emplace(key, val.template as<value_t>());
+    }
+    return result;
+}
+
 template <typename string_t>
 template <typename value_t, typename... rest_keys_t>
-MEOJSON_INLINE auto basic_object<string_t>::get_helper(const value_t& default_value, const string_t& key,
-                                                       rest_keys_t&&... rest) const
+inline auto basic_object<string_t>::get_helper(const value_t& default_value, const string_t& key,
+                                               rest_keys_t&&... rest) const
 {
     constexpr bool is_json = std::is_same_v<basic_value<string_t>, value_t> ||
                              std::is_same_v<basic_array<string_t>, value_t> ||
@@ -1788,7 +1807,7 @@ MEOJSON_INLINE auto basic_object<string_t>::get_helper(const value_t& default_va
 
 template <typename string_t>
 template <typename value_t>
-MEOJSON_INLINE auto basic_object<string_t>::get_helper(const value_t& default_value, const string_t& key) const
+inline auto basic_object<string_t>::get_helper(const value_t& default_value, const string_t& key) const
 {
     constexpr bool is_json = std::is_same_v<basic_value<string_t>, value_t> ||
                              std::is_same_v<basic_array<string_t>, value_t> ||
@@ -1825,7 +1844,7 @@ MEOJSON_INLINE auto basic_object<string_t>::get_helper(const value_t& default_va
 
 template <typename string_t>
 template <typename value_t>
-MEOJSON_INLINE std::optional<value_t> basic_object<string_t>::find(const string_t& key) const
+inline std::optional<value_t> basic_object<string_t>::find(const string_t& key) const
 {
     static_assert(std::is_constructible_v<value_t, basic_value<string_t>>,
                   "value_t can NOT be constructed by basic_value");
@@ -1838,55 +1857,55 @@ MEOJSON_INLINE std::optional<value_t> basic_object<string_t>::find(const string_
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_object<string_t>::iterator basic_object<string_t>::begin() noexcept
+inline typename basic_object<string_t>::iterator basic_object<string_t>::begin() noexcept
 {
     return _object_data.begin();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_object<string_t>::iterator basic_object<string_t>::end() noexcept
+inline typename basic_object<string_t>::iterator basic_object<string_t>::end() noexcept
 {
     return _object_data.end();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_object<string_t>::const_iterator basic_object<string_t>::begin() const noexcept
+inline typename basic_object<string_t>::const_iterator basic_object<string_t>::begin() const noexcept
 {
     return _object_data.begin();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_object<string_t>::const_iterator basic_object<string_t>::end() const noexcept
+inline typename basic_object<string_t>::const_iterator basic_object<string_t>::end() const noexcept
 {
     return _object_data.end();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_object<string_t>::const_iterator basic_object<string_t>::cbegin() const noexcept
+inline typename basic_object<string_t>::const_iterator basic_object<string_t>::cbegin() const noexcept
 {
     return _object_data.cbegin();
 }
 
 template <typename string_t>
-MEOJSON_INLINE typename basic_object<string_t>::const_iterator basic_object<string_t>::cend() const noexcept
+inline typename basic_object<string_t>::const_iterator basic_object<string_t>::cend() const noexcept
 {
     return _object_data.cend();
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_object<string_t>::operator[](const string_t& key)
+inline basic_value<string_t>& basic_object<string_t>::operator[](const string_t& key)
 {
     return _object_data[key];
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_value<string_t>& basic_object<string_t>::operator[](string_t&& key)
+inline basic_value<string_t>& basic_object<string_t>::operator[](string_t&& key)
 {
     return _object_data[std::move(key)];
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_object<string_t> basic_object<string_t>::operator|(const basic_object<string_t>& rhs) const&
+inline basic_object<string_t> basic_object<string_t>::operator|(const basic_object<string_t>& rhs) const&
 {
     basic_object<string_t> temp = *this;
     temp._object_data.insert(rhs.begin(), rhs.end());
@@ -1894,7 +1913,7 @@ MEOJSON_INLINE basic_object<string_t> basic_object<string_t>::operator|(const ba
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_object<string_t> basic_object<string_t>::operator|(basic_object<string_t>&& rhs) const&
+inline basic_object<string_t> basic_object<string_t>::operator|(basic_object<string_t>&& rhs) const&
 {
     basic_object<string_t> temp = *this;
     // temp._object_data.merge(std::move(rhs._object_data));
@@ -1903,14 +1922,14 @@ MEOJSON_INLINE basic_object<string_t> basic_object<string_t>::operator|(basic_ob
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_object<string_t> basic_object<string_t>::operator|(const basic_object<string_t>& rhs) &&
+inline basic_object<string_t> basic_object<string_t>::operator|(const basic_object<string_t>& rhs) &&
 {
     _object_data.insert(rhs.begin(), rhs.end());
     return std::move(*this);
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_object<string_t> basic_object<string_t>::operator|(basic_object<string_t>&& rhs) &&
+inline basic_object<string_t> basic_object<string_t>::operator|(basic_object<string_t>&& rhs) &&
 {
     //_object_data.merge(std::move(rhs._object_data));
     _object_data.insert(std::make_move_iterator(rhs.begin()), std::make_move_iterator(rhs.end()));
@@ -1918,21 +1937,21 @@ MEOJSON_INLINE basic_object<string_t> basic_object<string_t>::operator|(basic_ob
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_object<string_t>& basic_object<string_t>::operator|=(const basic_object<string_t>& rhs)
+inline basic_object<string_t>& basic_object<string_t>::operator|=(const basic_object<string_t>& rhs)
 {
     _object_data.insert(rhs.begin(), rhs.end());
     return *this;
 }
 
 template <typename string_t>
-MEOJSON_INLINE basic_object<string_t>& basic_object<string_t>::operator|=(basic_object<string_t>&& rhs)
+inline basic_object<string_t>& basic_object<string_t>::operator|=(basic_object<string_t>&& rhs)
 {
     _object_data.insert(std::make_move_iterator(rhs.begin()), std::make_move_iterator(rhs.end()));
     return *this;
 }
 
 template <typename string_t>
-MEOJSON_INLINE bool basic_object<string_t>::operator==(const basic_object<string_t>& rhs) const
+inline bool basic_object<string_t>::operator==(const basic_object<string_t>& rhs) const
 {
     return _object_data == rhs._object_data;
 }
@@ -1942,14 +1961,13 @@ MEOJSON_INLINE bool basic_object<string_t>::operator==(const basic_object<string
 // *************************
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE std::optional<basic_value<string_t>> parser<string_t, parsing_t, accel_traits>::parse(
-    const parsing_t& content)
+inline std::optional<basic_value<string_t>> parser<string_t, parsing_t, accel_traits>::parse(const parsing_t& content)
 {
     return parser<string_t, parsing_t, accel_traits>(content.cbegin(), content.cend()).parse();
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE std::optional<basic_value<string_t>> parser<string_t, parsing_t, accel_traits>::parse()
+inline std::optional<basic_value<string_t>> parser<string_t, parsing_t, accel_traits>::parse()
 {
     if (!skip_whitespace()) {
         return std::nullopt;
@@ -1981,7 +1999,7 @@ MEOJSON_INLINE std::optional<basic_value<string_t>> parser<string_t, parsing_t,
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_value()
+inline basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_value()
 {
     switch (*_cur) {
     case 'n':
@@ -2013,7 +2031,7 @@ MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_null()
+inline basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_null()
 {
     for (const auto& ch : null_string<string_t>()) {
         if (*_cur == ch) {
@@ -2028,7 +2046,7 @@ MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_boolean()
+inline basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_boolean()
 {
     switch (*_cur) {
     case 't':
@@ -2057,7 +2075,7 @@ MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_number()
+inline basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_number()
 {
     const auto first = _cur;
     if (*_cur == '-') {
@@ -2096,7 +2114,7 @@ MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_string()
+inline basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_string()
 {
     auto string_opt = parse_stdstring();
     if (!string_opt) {
@@ -2106,7 +2124,7 @@ MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_array()
+inline basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_array()
 {
     if (*_cur == '[') {
         ++_cur;
@@ -2157,7 +2175,7 @@ MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_object()
+inline basic_value<string_t> parser<string_t, parsing_t, accel_traits>::parse_object()
 {
     if (*_cur == '{') {
         ++_cur;
@@ -2221,7 +2239,7 @@ MEOJSON_INLINE basic_value<string_t> parser<string_t, parsing_t, accel_traits>::
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE std::optional<string_t> parser<string_t, parsing_t, accel_traits>::parse_stdstring()
+inline std::optional<string_t> parser<string_t, parsing_t, accel_traits>::parse_stdstring()
 {
     if (*_cur == '"') {
         ++_cur;
@@ -2297,7 +2315,7 @@ MEOJSON_INLINE std::optional<string_t> parser<string_t, parsing_t, accel_traits>
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE void parser<string_t, parsing_t, accel_traits>::skip_string_literal()
+inline void parser<string_t, parsing_t, accel_traits>::skip_string_literal()
 {
     if constexpr (sizeof(*_cur) != 1) {
         return;
@@ -2319,7 +2337,7 @@ MEOJSON_INLINE void parser<string_t, parsing_t, accel_traits>::skip_string_liter
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE bool parser<string_t, parsing_t, accel_traits>::skip_whitespace() noexcept
+inline bool parser<string_t, parsing_t, accel_traits>::skip_whitespace() noexcept
 {
     while (_cur != _end) {
         switch (*_cur) {
@@ -2339,7 +2357,7 @@ MEOJSON_INLINE bool parser<string_t, parsing_t, accel_traits>::skip_whitespace()
 }
 
 template <typename string_t, typename parsing_t, typename accel_traits>
-MEOJSON_INLINE bool parser<string_t, parsing_t, accel_traits>::skip_digit()
+inline bool parser<string_t, parsing_t, accel_traits>::skip_digit()
 {
     // At least one digit
     if (_cur != _end && std::isdigit(*_cur)) {
@@ -2366,14 +2384,20 @@ MEOJSON_INLINE bool parser<string_t, parsing_t, accel_traits>::skip_digit()
 // *************************
 
 template <typename parsing_t>
-MEOJSON_INLINE auto parse(const parsing_t& content)
+auto parse(const parsing_t& content)
 {
     using string_t = std::basic_string<typename parsing_t::value_type>;
     return parser<string_t, parsing_t>::parse(content);
 }
 
+template <typename char_t>
+auto parse(char_t* content)
+{
+    return parse(std::basic_string_view<std::decay_t<char_t>> { content });
+}
+
 template <typename istream_t, typename _>
-MEOJSON_INLINE auto parse(istream_t& ifs, bool check_bom)
+auto parse(istream_t& ifs, bool check_bom)
 {
     using string_t = std::basic_string<typename istream_t::char_type>;
 
@@ -2400,7 +2424,7 @@ MEOJSON_INLINE auto parse(istream_t& ifs, bool check_bom)
 }
 
 template <typename ifstream_t, typename path_t>
-MEOJSON_INLINE auto open(const path_t& filepath, bool check_bom)
+auto open(const path_t& filepath, bool check_bom)
 {
     using char_t = typename ifstream_t::char_type;
     using string_t = std::basic_string<char_t>;
@@ -2449,85 +2473,49 @@ ostream_t& operator<<(ostream_t& out, const basic_object<string_t>& obj)
 
 namespace literals
 {
-    MEOJSON_INLINE value operator""_json(const char* str, size_t len)
-    {
-        return operator""_jvalue(str, len);
-    }
-    MEOJSON_INLINE wvalue operator""_json(const wchar_t* str, size_t len)
-    {
-        return operator""_jvalue(str, len);
-    }
-    MEOJSON_INLINE u16value operator""_json(const char16_t* str, size_t len)
+    inline value operator""_json(const char* str, size_t len)
     {
         return operator""_jvalue(str, len);
     }
-    MEOJSON_INLINE u32value operator""_json(const char32_t* str, size_t len)
+    inline wvalue operator""_json(const wchar_t* str, size_t len)
     {
         return operator""_jvalue(str, len);
     }
 
-    MEOJSON_INLINE value operator""_jvalue(const char* str, size_t len)
+    inline value operator""_jvalue(const char* str, size_t len)
     {
         return parse(std::string_view(str, len)).value_or(value());
     }
-    MEOJSON_INLINE wvalue operator""_jvalue(const wchar_t* str, size_t len)
+    inline wvalue operator""_jvalue(const wchar_t* str, size_t len)
     {
         return parse(std::wstring_view(str, len)).value_or(wvalue());
     }
-    MEOJSON_INLINE u16value operator""_jvalue(const char16_t* str, size_t len)
-    {
-        return parse(std::u16string_view(str, len)).value_or(u16value());
-    }
-    MEOJSON_INLINE u32value operator""_jvalue(const char32_t* str, size_t len)
-    {
-        return parse(std::u32string_view(str, len)).value_or(u32value());
-    }
 
-    MEOJSON_INLINE array operator""_jarray(const char* str, size_t len)
+    inline array operator""_jarray(const char* str, size_t len)
     {
         auto val = parse(std::string_view(str, len)).value_or(value());
         return val.is_array() ? val.as_array() : array();
     }
-    MEOJSON_INLINE warray operator""_jarray(const wchar_t* str, size_t len)
+    inline warray operator""_jarray(const wchar_t* str, size_t len)
     {
         auto val = parse(std::wstring_view(str, len)).value_or(wvalue());
         return val.is_array() ? val.as_array() : warray();
     }
-    MEOJSON_INLINE u16array operator""_jarray(const char16_t* str, size_t len)
-    {
-        auto val = parse(std::u16string_view(str, len)).value_or(u16value());
-        return val.is_array() ? val.as_array() : u16array();
-    }
-    MEOJSON_INLINE u32array operator""_jarray(const char32_t* str, size_t len)
-    {
-        auto val = parse(std::u32string_view(str, len)).value_or(u32value());
-        return val.is_array() ? val.as_array() : u32array();
-    }
 
-    MEOJSON_INLINE object operator""_jobject(const char* str, size_t len)
+    inline object operator""_jobject(const char* str, size_t len)
     {
         auto val = parse(std::string_view(str, len)).value_or(value());
         return val.is_object() ? val.as_object() : object();
     }
-    MEOJSON_INLINE wobject operator""_jobject(const wchar_t* str, size_t len)
+    inline wobject operator""_jobject(const wchar_t* str, size_t len)
     {
         auto val = parse(std::wstring_view(str, len)).value_or(wvalue());
         return val.is_object() ? val.as_object() : wobject();
     }
-    MEOJSON_INLINE u16object operator""_jobject(const char16_t* str, size_t len)
-    {
-        auto val = parse(std::u16string_view(str, len)).value_or(u16value());
-        return val.is_object() ? val.as_object() : u16object();
-    }
-    MEOJSON_INLINE u32object operator""_jobject(const char32_t* str, size_t len)
-    {
-        auto val = parse(std::u32string_view(str, len)).value_or(u32value());
-        return val.is_object() ? val.as_object() : u32object();
-    }
 } // namespace literals
 
 template <typename string_t>
-MEOJSON_INLINE const basic_value<string_t> invalid_value()
+const basic_value<string_t> invalid_value()
 {
     return basic_value<string_t>(basic_value<string_t>::value_type::invalid, typename basic_value<string_t>::var_t());
 }
@@ -2549,27 +2537,21 @@ namespace _serialization_helper
         static constexpr bool value = decltype(test<T>(0))::value;
     };
 
-    template <typename...>
-    using void_t = void;
-
     template <typename T, typename = void>
     constexpr bool is_container = false;
     template <typename T>
-    constexpr bool is_container<
-        T, void_t<typename T::value_type, decltype(std::declval<T>().begin()), decltype(std::declval<T>().end())>> =
-        true;
+    constexpr bool is_container<T, std::void_t<typename T::value_type, utils::range_value_t<T>>> =
+        std::is_same_v<typename T::value_type, utils::range_value_t<T>>;
 
-    // something like a map
     template <typename T, typename = void>
-    constexpr bool is_associative_container = false;
+    constexpr bool is_map = false;
     template <typename T>
-    constexpr bool is_associative_container<T, void_t<typename T::key_type, typename T::mapped_type>> = is_container<T>;
+    constexpr bool is_map<T, std::void_t<typename T::key_type, typename T::mapped_type>> = is_container<T>;
 
-    // something like a vector
     template <typename T, typename = void>
-    constexpr bool is_sequence_container = false;
+    constexpr bool is_collection = false;
     template <typename T>
-    constexpr bool is_sequence_container<T> = is_container<T> && !is_associative_container<T>;
+    constexpr bool is_collection<T> = is_container<T> && !is_map<T>;
 
     template <bool loose, typename string_t>
     struct string_converter
@@ -2577,6 +2559,10 @@ namespace _serialization_helper
         using char_t = typename string_t::value_type;
         using ostringstream_t = std::basic_ostringstream<char_t, std::char_traits<char_t>, std::allocator<char_t>>;
 
+        template <typename input_t>
+        static constexpr bool is_convertible =
+            std::is_constructible_v<string_t, input_t> || (loose && has_output_operator<char_t, input_t>::value);
+
         template <typename input_t>
         string_t operator()(input_t&& arg) const
         {
@@ -2596,10 +2582,24 @@ namespace _serialization_helper
             }
         }
     };
-}
+
+    template <typename T>
+    void unable_to_serialize()
+    {
+        static_assert(!sizeof(T), "Unable to serialize T. "
+                                  "You can define the conversion of T to json, or overload operator<< for it. "
+#ifdef _MSC_VER
+                                  "See T below: " __FUNCSIG__
+#else
+        //"See T below: " __PRETTY_FUNCTION__
+
+#endif
+        );
+    }
+} // namespace _serialization_helper
 
 template <bool loose, typename any_t, typename string_t, typename string_converter_t>
-MEOJSON_INLINE basic_value<string_t> serialize(any_t&& arg, string_converter_t&& string_converter)
+basic_value<string_t> serialize(any_t&& arg, string_converter_t&& string_converter)
 {
     using namespace _serialization_helper;
 
@@ -2612,33 +2612,38 @@ MEOJSON_INLINE basic_value<string_t> serialize(any_t&& arg, string_converter_t&&
     else if constexpr (std::is_constructible_v<basic_object<string_t>, any_t>) {
         return basic_object<string_t>(std::forward<any_t>(arg));
     }
-    else if constexpr (is_sequence_container<std::decay_t<any_t>>) {
+    else if constexpr (std::decay_t<string_converter_t>::template is_convertible<any_t>) {
+        return string_converter(std::forward<any_t>(arg));
+    }
+    else if constexpr (is_collection<std::decay_t<any_t>>) {
         basic_value<string_t> result;
         for (auto&& val : arg) {
             using value_t = decltype(val);
 
-            result.emplace(serialize<loose, value_t, string_t>(std::forward<value_t>(val), string_converter));
+            result.emplace(serialize<loose, value_t, string_t>(std::forward<value_t>(val),
+                                                               std::forward<string_converter_t>(string_converter)));
         }
         return result;
     }
-    else if constexpr (is_associative_container<std::decay_t<any_t>>) {
+    else if constexpr (is_map<std::decay_t<any_t>>) {
         basic_value<string_t> result;
         for (auto&& [key, val] : arg) {
             using key_t = decltype(key);
             using value_t = decltype(val);
 
             result.emplace(string_converter(std::forward<key_t>(key)),
-                           serialize<loose, value_t, string_t>(std::forward<value_t>(val), string_converter));
+                           serialize<loose, value_t, string_t>(std::forward<value_t>(val),
+                                                               std::forward<string_converter_t>(string_converter)));
         }
         return result;
     }
     else {
-        return string_converter(std::forward<any_t>(arg));
+        unable_to_serialize<any_t>();
     }
 }
 
 template <typename string_t>
-MEOJSON_INLINE static constexpr string_t unescape_string(const string_t& str)
+static constexpr string_t unescape_string(const string_t& str)
 {
     using char_t = typename string_t::value_type;
 
diff --git a/source/cli/meojson/json5.hpp b/source/cli/meojson/json5.hpp
index d6ca3f5..d2ceefa 100644
--- a/source/cli/meojson/json5.hpp
+++ b/source/cli/meojson/json5.hpp
@@ -12,1702 +12,1675 @@
 
 namespace json
 {
-    // *************************
-    // *         declare       *
-    // *************************
+// *************************
+// *         declare       *
+// *************************
 
-    template<typename StringT>
-    class parser5
-    {
-    private:
-        using StringIterT = typename StringT::const_iterator;
-        using u8char = uint64_t;
-
-        /* exceptions */
-    public:
-        class exception : public json::exception
-        {
-        public:
-            exception() = default;
-            exception(const std::string& type, const std::string& msg,
-                      const std::string& detail)
-            {
-                std::stringstream ss;
-                ss << "JSON5: [" << type << "] " << msg << '\n';
-                ss << detail << std::endl;
-                _what = ss.str();
-            }
-            exception(const exception&) = default;
-            exception& operator=(const exception&) = default;
-            exception(exception&&) = default;
-            exception& operator=(exception&&) = default;
-
-            virtual ~exception() noexcept = default;
-        };
-
-        class InvalidChar : public exception
-        {
-        public:
-            InvalidChar(u8char ch = 0, const std::string& detail = "")
-                : exception("Invalid Char",
-                            "Unexpected token \'" + StringFromCharCode(ch) + "\'",
-                            detail)
-            {}
-        };
-
-        class InvalidIdentifier : public exception
-        {
-        public:
-            InvalidIdentifier(const std::string& msg = "",
-                              const std::string& detail = "")
-                : exception("Invalid Identifier", msg, detail)
-            {}
-        };
-
-        class InvalidEOF : public exception
-        {
-        public:
-            InvalidEOF(const std::string& msg = "", const std::string& detail = "")
-                : exception("Invalid EOF", msg, detail)
-            {}
-        };
+template <typename StringT>
+class parser5
+{
+private:
+    using StringIterT = typename StringT::const_iterator;
+    using u8char = uint64_t;
 
+    /* exceptions */
+public:
+    class exception : public json::exception
+    {
     public:
-        std::string exceptionDetailInfo()
+        exception() = default;
+        exception(const std::string& type, const std::string& msg, const std::string& detail)
         {
-            size_t start_point = _col;
-            auto len = _print_len;
-            auto current_line = _line_begin_cur;
             std::stringstream ss;
-            ss << "at line " << _line << ", column " << _col + 1 << '\n';
-
-            while (read() != '\n' && _cur != _end && (_col - start_point) < 5)
-                ;
-            ss << std::string(current_line, _cur) << '\n';
-            ss << std::setw(len) << '^' << '\n';
-            return ss.str();
+            ss << "JSON5: [" << type << "] " << msg << '\n';
+            ss << detail << std::endl;
+            _what = ss.str();
         }
+        exception(const exception&) = default;
+        exception& operator=(const exception&) = default;
+        exception(exception&&) = default;
+        exception& operator=(exception&&) = default;
 
-        /* helper class and type */
-    private:
-        class unicode
-        {
-        public:
-            static const std::wregex space_separator;
-            static const std::wregex id_start;
-            static const std::wregex id_continue;
-
-            static bool isSpaceSeparator(u8char ch);
-            static bool isIdStartChar(u8char ch);
-            static bool isIdContinueChar(u8char ch);
-            static bool isDigit(u8char ch);
-            static bool isHexDigit(u8char ch);
-        };
-
-        enum class LexState
-        {
-            default_ = 0,
-            comment,
-            multiLineComment,
-            multiLineCommentAsterisk,
-            singleLineComment,
-            value,
-            identifierNameStartEscape,
-            identifierName,
-            identifierNameEscape,
-            sign,
-            zero,
-            decimalInteger,
-            decimalPointLeading,
-            decimalPoint,
-            decimalFraction,
-            decimalExponent,
-            decimalExponentSign,
-            decimalExponentInteger,
-            hexadecimal,
-            hexadecimalInteger,
-            string,
-            start,
-            beforePropertyName,
-            afterPropertyName,
-            beforePropertyValue,
-            afterPropertyValue,
-            beforeArrayValue,
-            afterArrayValue,
-            end
-        };
-
-        enum class ParseState
-        {
-            start = 21,
-            beforePropertyName,
-            afterPropertyName,
-            beforePropertyValue,
-            afterPropertyValue,
-            beforeArrayValue,
-            afterArrayValue,
-            end
-        };
-
-        enum class TokenType
-        {
-            punctuator = 0,
-            identifier,
-            null,
-            boolean,
-            numeric,
-            string,
-            eof,
-        };
-
-        struct Token
-        {
-            TokenType type;
-            value _value;
-            size_t col = 0;
-            size_t line = 0;
-        };
+        virtual ~exception() noexcept = default;
+    };
 
-        /* constrators and callers */
+    class InvalidChar : public exception
+    {
     public:
-        ~parser5() noexcept = default;
-        static std::optional<value> parse(const StringT& content, std::string* error = nullptr);
-
-    private:
-        parser5(const StringIterT& cbegin,
-                const StringIterT& cend) noexcept
-            : _cur(cbegin), _end(cend), _line_begin_cur(cbegin)
+        InvalidChar(u8char ch = 0, const std::string& detail = "")
+            : exception("Invalid Char", "Unexpected token \'" + StringFromCharCode(ch) + "\'", detail)
         {}
-        std::optional<value> parse();
-
-    private:
-        /* utf-8 reader */
-        static u8char peek(StringIterT& begin,
-                           const StringIterT& end,
-                           size_t* len = nullptr);
-        static u8char peek(const std::string& str);
-        typename parser5<StringT>::u8char read();
-        static std::string StringFromCharCode(u8char code);
-        /* escape and format */
-        void literal(const std::string& s);
-        std::optional<u8char> escape();
-        u8char hexEscape();
-        u8char unicodeEscape();
-        /* lex, parse, token */
-        Token lex();
-        Token newToken(TokenType type, value value);
-
-        std::optional<Token> lex_default();
-        std::optional<Token> lex_comment();
-        std::optional<Token> lex_multiLineComment();
-        std::optional<Token> lex_multiLineCommentAsterisk();
-        std::optional<Token> lex_singleLineComment();
-        std::optional<Token> lex_value();
-        std::optional<Token> lex_identifierNameStartEscape();
-        std::optional<Token> lex_identifierName();
-        std::optional<Token> lex_identifierNameEscape();
-        std::optional<Token> lex_sign();
-        std::optional<Token> lex_zero();
-        std::optional<Token> lex_decimalInteger();
-        std::optional<Token> lex_decimalPointLeading();
-        std::optional<Token> lex_decimalPoint();
-        std::optional<Token> lex_decimalFraction();
-        std::optional<Token> lex_decimalExponent();
-        std::optional<Token> lex_decimalExponentSign();
-        std::optional<Token> lex_decimalExponentInteger();
-        std::optional<Token> lex_hexadecimal();
-        std::optional<Token> lex_hexdecimalInteger();
-        std::optional<Token> lex_string();
-        std::optional<Token> lex_start();
-        std::optional<Token> lex_beforePropertyName();
-        std::optional<Token> lex_afterPropertyName();
-        std::optional<Token> lex_beforePropertyValue();
-        std::optional<Token> lex_afterPropertyValue();
-        std::optional<Token> lex_beforeArrayValue();
-        std::optional<Token> lex_afterArrayValue();
-        std::optional<Token> lex_end();
-
-        std::optional<Token> lexStates(LexState state);
-
-        void parse_start();
-        void parse_beforePropertyName();
-        void parse_afterPropertyName();
-        void parse_beforePropertyValue();
-        void parse_beforeArrayValue();
-        void parse_afterPropertyValue();
-        void parse_afterArrayValue();
-        void parse_end();
-
-        void parseStates(ParseState state);
-
-        /* stack operation */
-        void push();
-        void pop();
-
-    private:
-        StringIterT _cur, _end;
-        StringIterT _line_begin_cur;
-        size_t _line = 1, _col = 0, _print_len = 0;
-        ParseState _parse_state = ParseState::start;
-        std::stack<value*> _stack;
-        std::optional<Token> _token;
-        std::string _key;
-        std::optional<value> _root;
-
-        LexState _lex_state = LexState::default_;
-        std::string _buffer;
-        bool _double_quote = false;
-        int64_t _sign = 1;
-        u8char _current_char = 0;
     };
 
-    // *************************
-    // *    implementation     *
-    // *************************
-
-    /* parser5<StringT>::unicode */
-    template<typename StringT>
-    MEOJSON_INLINE const std::wregex parser5<StringT>::unicode::space_separator =
-        std::wregex(LR"([\u1680\u2000-\u200A\u202F\u205F\u3000])");
-
-    template<typename StringT>
-    MEOJSON_INLINE const std::wregex parser5<StringT>::unicode::id_start = std::wregex(
-        LR"([\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-)"
-        LR"(\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-)"
-        LR"(\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-)"
-        LR"(\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-)"
-        LR"(\u05F2\u0620-\u064A\u066E\u066F\u0671-)"
-        LR"(\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-)"
-        LR"(\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-)"
-        LR"(\u0815\u081A\u0824\u0828\u0840-\u0858\u0860-\u086A\u08A0-\u08B4\u08B6-)"
-        LR"(\u08BD\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-)"
-        LR"(\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-)"
-        LR"(\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u09FC\u0A05-)"
-        LR"(\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-)"
-        LR"(\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-)"
-        LR"(\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-)"
-        LR"(\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0AF9\u0B05-)"
-        LR"(\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-)"
-        LR"(\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-)"
-        LR"(\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-)"
-        LR"(\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-)"
-        LR"(\u0C39\u0C3D\u0C58-\u0C5A\u0C60\u0C61\u0C80\u0C85-\u0C8C\u0C8E-)"
-        LR"(\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-)"
-        LR"(\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-)"
-        LR"(\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D54-\u0D56\u0D5F-\u0D61\u0D7A-)"
-        LR"(\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-)"
-        LR"(\u0E30\u0E32\u0E33\u0E40-)"
-        LR"(\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-)"
-        LR"(\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-)"
-        LR"(\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-)"
-        LR"(\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-)"
-        LR"(\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-)"
-        LR"(\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-)"
-        LR"(\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-)"
-        LR"(\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-)"
-        LR"(\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-)"
-        LR"(\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-)"
-        LR"(\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-)"
-        LR"(\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u1884\u1887-)"
-        LR"(\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-)"
-        LR"(\u19AB\u19B0-\u19C9\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-)"
-        LR"(\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-)"
-        LR"(\u1C4F\u1C5A-\u1C7D\u1C80-\u1C88\u1CE9-\u1CEC\u1CEE-)"
-        LR"(\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-)"
-        LR"(\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-)"
-        LR"(\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-)"
-        LR"(\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-)"
-        LR"(\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-)"
-        LR"(\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-)"
-        LR"(\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-)"
-        LR"(\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-)"
-        LR"(\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-)"
-        LR"(\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-)"
-        LR"(\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-)"
-        LR"(\u30FA\u30FC-\u30FF\u3105-\u312E\u3131-\u318E\u31A0-\u31BA\u31F0-)"
-        LR"(\u31FF\u3400-\u4DB5\u4E00-\u9FEA\uA000-\uA48C\uA4D0-\uA4FD\uA500-)"
-        LR"(\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-)"
-        LR"(\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-)"
-        LR"(\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-)"
-        LR"(\uA8B3\uA8F2-\uA8F7\uA8FB\uA8FD\uA90A-\uA925\uA930-\uA946\uA960-)"
-        LR"(\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-)"
-        LR"(\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-)"
-        LR"(\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-)"
-        LR"(\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-)"
-        LR"(\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABE2\uAC00-)"
-        LR"(\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-)"
-        LR"(\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-)"
-        LR"(\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-)"
-        LR"(\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-)"
-        LR"(\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-)"
-        LR"(\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-)"
-        LR"(\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-)"
-        LR"(\uDD74\uDE80-\uDE9C\uDEA0-\uDED0\uDF00-\uDF1F\uDF2D-\uDF4A\uDF50-)"
-        LR"(\uDF75\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-)"
-        LR"(\uDC9D\uDCB0-\uDCD3\uDCD8-\uDCFB\uDD00-\uDD27\uDD30-\uDD63\uDE00-)"
-        LR"(\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-)"
-        LR"(\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-)"
-        LR"(\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-)"
-        LR"(\uDDB7\uDDBE\uDDBF\uDE00\uDE10-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE60-)"
-        LR"(\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE4\uDF00-\uDF35\uDF40-)"
-        LR"(\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-)"
-        LR"(\uDCF2]|\uD804[\uDC03-\uDC37\uDC83-\uDCAF\uDCD0-\uDCE8\uDD03-\uDD26\uDD50-)"
-        LR"(\uDD72\uDD76\uDD83-\uDDB2\uDDC1-\uDDC4\uDDDA\uDDDC\uDE00-\uDE11\uDE13-)"
-        LR"(\uDE2B\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-)"
-        LR"(\uDEDE\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-)"
-        LR"(\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3D\uDF50\uDF5D-\uDF61]|\uD805[\uDC00-)"
-        LR"(\uDC34\uDC47-\uDC4A\uDC80-\uDCAF\uDCC4\uDCC5\uDCC7\uDD80-\uDDAE\uDDD8-)"
-        LR"(\uDDDB\uDE00-\uDE2F\uDE44\uDE80-\uDEAA\uDF00-\uDF19]|\uD806[\uDCA0-)"
-        LR"(\uDCDF\uDCFF\uDE00\uDE0B-\uDE32\uDE3A\uDE50\uDE5C-\uDE83\uDE86-)"
-        LR"(\uDE89\uDEC0-\uDEF8]|\uD807[\uDC00-\uDC08\uDC0A-\uDC2E\uDC40\uDC72-)"
-        LR"(\uDC8F\uDD00-\uDD06\uDD08\uDD09\uDD0B-\uDD30\uDD46]|\uD808[\uDC00-\uDF99]|)"
-        LR"(\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD81C-\uD820\uD840-)"
-        LR"(\uD868\uD86A-\uD86C\uD86F-\uD872\uD874-\uD879][\uDC00-\uDFFF]|\uD80D[)"
-        LR"(\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-)"
-        LR"(\uDE5E\uDED0-\uDEED\uDF00-\uDF2F\uDF40-\uDF43\uDF63-\uDF77\uDF7D-\uDF8F]|)"
-        LR"(\uD81B[\uDF00-\uDF44\uDF50\uDF93-\uDF9F\uDFE0\uDFE1]|\uD821[\uDC00-\uDFEC])"
-        LR"(|\uD822[\uDC00-\uDEF2]|\uD82C[\uDC00-\uDD1E\uDD70-\uDEFB]|\uD82F[\uDC00-)"
-        LR"(\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99]|\uD835[\uDC00-\uDC54\uDC56-)"
-        LR"(\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-)"
-        LR"(\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-)"
-        LR"(\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-)"
-        LR"(\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-)"
-        LR"(\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-)"
-        LR"(\uDFC2\uDFC4-\uDFCB]|\uD83A[\uDC00-\uDCC4\uDD00-\uDD43]|\uD83B[\uDE00-)"
-        LR"(\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-)"
-        LR"(\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-)"
-        LR"(\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64)"
-        LR"(\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-)"
-        LR"(\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-)"
-        LR"(\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-)"
-        LR"(\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1\uDEB0-\uDFFF]|\uD87A[\uDC00-)"
-        LR"(\uDFE0]|\uD87E[\uDC00-\uDE1D])");
-    template<typename StringT>
-    MEOJSON_INLINE const std::wregex parser5<StringT>::unicode::id_continue = std::wregex(
-    LR"([\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-)"
-    LR"(\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-)"
-    LR"(\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-)"
-    LR"(\u0481\u0483-\u0487\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u0591-)"
-    LR"(\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-)"
-    LR"(\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-)"
-    LR"(\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-)"
-    LR"(\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u0860-\u086A\u08A0-\u08B4\u08B6-)"
-    LR"(\u08BD\u08D4-\u08E1\u08E3-\u0963\u0966-\u096F\u0971-\u0983\u0985-)"
-    LR"(\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-)"
-    LR"(\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-)"
-    LR"(\u09F1\u09FC\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-)"
-    LR"(\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-)"
-    LR"(\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-)"
-    LR"(\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-)"
-    LR"(\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-)"
-    LR"(\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0AF9-\u0AFF\u0B01-\u0B03\u0B05-)"
-    LR"(\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-)"
-    LR"(\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-)"
-    LR"(\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-)"
-    LR"(\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-)"
-    LR"(\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-)"
-    LR"(\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-)"
-    LR"(\u0BEF\u0C00-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-)"
-    LR"(\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58-)"
-    LR"(\u0C5A\u0C60-\u0C63\u0C66-\u0C6F\u0C80-\u0C83\u0C85-\u0C8C\u0C8E-)"
-    LR"(\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-)"
-    LR"(\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-)"
-    LR"(\u0CEF\u0CF1\u0CF2\u0D00-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-)"
-    LR"(\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D54-\u0D57\u0D5F-\u0D63\u0D66-)"
-    LR"(\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-)"
-    LR"(\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-)"
-    LR"(\u0DEF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-)"
-    LR"(\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-)"
-    LR"(\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-)"
-    LR"(\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-)"
-    LR"(\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-)"
-    LR"(\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-)"
-    LR"(\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-)"
-    LR"(\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-)"
-    LR"(\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-)"
-    LR"(\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1380-)"
-    LR"(\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-)"
-    LR"(\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1714\u1720-)"
-    LR"(\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-)"
-    LR"(\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-)"
-    LR"(\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-)"
-    LR"(\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-)"
-    LR"(\u19D9\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-)"
-    LR"(\u1A99\u1AA7\u1AB0-\u1ABD\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-)"
-    LR"(\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1C80-\u1C88\u1CD0-)"
-    LR"(\u1CD2\u1CD4-\u1CF9\u1D00-\u1DF9\u1DFB-\u1F15\u1F18-\u1F1D\u1F20-)"
-    LR"(\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-)"
-    LR"(\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-)"
-    LR"(\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-)"
-    LR"(\u1FFC\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-)"
-    LR"(\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2119-)"
-    LR"(\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-)"
-    LR"(\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-)"
-    LR"(\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-)"
-    LR"(\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-)"
-    LR"(\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-)"
-    LR"(\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099\u309A\u309D-)"
-    LR"(\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312E\u3131-\u318E\u31A0-)"
-    LR"(\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FEA\uA000-\uA48C\uA4D0-)"
-    LR"(\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-)"
-    LR"(\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-)"
-    LR"(\uA827\uA840-\uA873\uA880-\uA8C5\uA8D0-\uA8D9\uA8E0-)"
-    LR"(\uA8F7\uA8FB\uA8FD\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-)"
-    LR"(\uA9C0\uA9CF-\uA9D9\uA9E0-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-)"
-    LR"(\uAA59\uAA60-\uAA76\uAA7A-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-)"
-    LR"(\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-)"
-    LR"(\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABEA\uABEC\uABED\uABF0-)"
-    LR"(\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-)"
-    LR"(\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-)"
-    LR"(\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-)"
-    LR"(\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-)"
-    LR"(\uFE2F\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-)"
-    LR"(\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-)"
-    LR"(\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-)"
-    LR"(\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-)"
-    LR"(\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF2D-)"
-    LR"(\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|)"
-    LR"(\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\uDCB0-\uDCD3\uDCD8-\uDCFB\uDD00-)"
-    LR"(\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-)"
-    LR"(\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-)"
-    LR"(\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-)"
-    LR"(\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00-\uDE03\uDE05\uDE06\uDE0C-)"
-    LR"(\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-)"
-    LR"(\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-)"
-    LR"(\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|)"
-    LR"(\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-)"
-    LR"(\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDCA-)"
-    LR"(\uDDCC\uDDD0-\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE37\uDE3E\uDE80-)"
-    LR"(\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEEA\uDEF0-)"
-    LR"(\uDEF9\uDF00-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-)"
-    LR"(\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-)"
-    LR"(\uDF4D\uDF50\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC00-)"
-    LR"(\uDC4A\uDC50-\uDC59\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-)"
-    LR"(\uDDC0\uDDD8-\uDDDD\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-)"
-    LR"(\uDEC9\uDF00-\uDF19\uDF1D-\uDF2B\uDF30-\uDF39]|\uD806[\uDCA0-)"
-    LR"(\uDCE9\uDCFF\uDE00-\uDE3E\uDE47\uDE50-\uDE83\uDE86-\uDE99\uDEC0-\uDEF8]|)"
-    LR"(\uD807[\uDC00-\uDC08\uDC0A-\uDC36\uDC38-\uDC40\uDC50-\uDC59\uDC72-)"
-    LR"(\uDC8F\uDC92-\uDCA7\uDCA9-\uDCB6\uDD00-\uDD06\uDD08\uDD09\uDD0B-)"
-    LR"(\uDD36\uDD3A\uDD3C\uDD3D\uDD3F-\uDD47\uDD50-\uDD59]|\uD808[\uDC00-\uDF99]|)"
-    LR"(\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD81C-\uD820\uD840-)"
-    LR"(\uD868\uD86A-\uD86C\uD86F-\uD872\uD874-\uD879][\uDC00-\uDFFF]|\uD80D[)"
-    LR"(\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-)"
-    LR"(\uDE5E\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-)"
-    LR"(\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-)"
-    LR"(\uDF7E\uDF8F-\uDF9F\uDFE0\uDFE1]|\uD821[\uDC00-\uDFEC]|\uD822[\uDC00-)"
-    LR"(\uDEF2]|\uD82C[\uDC00-\uDD1E\uDD70-\uDEFB]|\uD82F[\uDC00-\uDC6A\uDC70-)"
-    LR"(\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-)"
-    LR"(\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD835[\uDC00-)"
-    LR"(\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-)"
-    LR"(\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-)"
-    LR"(\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-)"
-    LR"(\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-)"
-    LR"(\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-)"
-    LR"(\uDFC2\uDFC4-\uDFCB\uDFCE-\uDFFF]|\uD836[\uDE00-\uDE36\uDE3B-)"
-    LR"(\uDE6C\uDE75\uDE84\uDE9B-\uDE9F\uDEA1-\uDEAF]|\uD838[\uDC00-\uDC06\uDC08-)"
-    LR"(\uDC18\uDC1B-\uDC21\uDC23\uDC24\uDC26-\uDC2A]|\uD83A[\uDC00-\uDCC4\uDCD0-)"
-    LR"(\uDCD6\uDD00-\uDD4A\uDD50-\uDD59]|\uD83B[\uDE00-\uDE03\uDE05-)"
-    LR"(\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-)"
-    LR"(\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-)"
-    LR"(\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64)"
-    LR"(\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-)"
-    LR"(\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-)"
-    LR"(\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-)"
-    LR"(\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1\uDEB0-\uDFFF]|\uD87A[\uDC00-)"
-    LR"(\uDFE0]|\uD87E[\uDC00-\uDE1D]|\uDB40[\uDD00-\uDDEF]|[\u200C\u200D])");
-
-    template<typename StringT>
-    MEOJSON_INLINE bool parser5<StringT>::unicode::isSpaceSeparator(u8char ch)
+    class InvalidIdentifier : public exception
     {
-#ifdef _MSC_VER
-        std::wstring wstr = { (wchar_t)ch, 0 };
-#else
-        auto str = StringFromCharCode(ch);
-        auto len = str.size() + 1;
-        std::unique_ptr<wchar_t[]> p(new wchar_t[len]);
-        std::setlocale(LC_CTYPE, ".UTF8");
-        std::mbstowcs(p.get(), str.c_str(), len);
-        std::wstring wstr(p.get());
-#endif
-        return std::regex_search(wstr, unicode::space_separator);
-    }
+    public:
+        InvalidIdentifier(const std::string& msg = "", const std::string& detail = "")
+            : exception("Invalid Identifier", msg, detail)
+        {}
+    };
 
-    template<typename StringT>
-    MEOJSON_INLINE bool parser5<StringT>::unicode::isIdStartChar(u8char ch)
+    class InvalidEOF : public exception
     {
-#ifdef _MSC_VER
-        std::wstring wstr = { (wchar_t)ch, 0 };
-#else
-        auto str = StringFromCharCode(ch);
-        auto len = str.size() + 1;
-        std::unique_ptr<wchar_t[]> p(new wchar_t[len]);
-        std::setlocale(LC_CTYPE, ".UTF8");
-        std::mbstowcs(p.get(), str.c_str(), len);
-        std::wstring wstr(p.get());
-#endif
-        return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (ch == '$') ||
-            (ch == '_') || std::regex_search(wstr, unicode::id_start);
-    }
+    public:
+        InvalidEOF(const std::string& msg = "", const std::string& detail = "") : exception("Invalid EOF", msg, detail)
+        {}
+    };
 
-    template<typename StringT>
-    MEOJSON_INLINE bool parser5<StringT>::unicode::isIdContinueChar(u8char ch)
+public:
+    std::string exceptionDetailInfo()
     {
-#ifdef _MSC_VER
-        std::wstring wstr = { (wchar_t)ch, 0 };
-#else
-        auto str = StringFromCharCode(ch);
-        auto len = str.size() + 1;
-        std::unique_ptr<wchar_t[]> p(new wchar_t[len]);
-        std::setlocale(LC_CTYPE, ".UTF8");
-        std::mbstowcs(p.get(), str.c_str(), len);
-        std::wstring wstr(p.get());
-#endif
-        return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||
-            (ch >= '0' && ch <= '9') || (ch == '$') || (ch == '_') ||
-            std::regex_search(wstr, unicode::id_continue);
+        size_t start_point = _col;
+        auto len = _print_len;
+        auto current_line = _line_begin_cur;
+        std::stringstream ss;
+        ss << "at line " << _line << ", column " << _col + 1 << '\n';
+
+        while (read() != '\n' && _cur != _end && (_col - start_point) < 5)
+            ;
+        ss << std::string(current_line, _cur) << '\n';
+        ss << std::setw(len) << '^' << '\n';
+        return ss.str();
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE bool parser5<StringT>::unicode::isDigit(u8char ch)
+    /* helper class and type */
+private:
+    class unicode
     {
-        auto str = StringFromCharCode(ch);
-        return std::regex_search(str, std::regex(R"([0-9])"));
-    }
+    public:
+        static const std::wregex space_separator;
+        static const std::wregex id_start;
+        static const std::wregex id_continue;
+
+        static bool isSpaceSeparator(u8char ch);
+        static bool isIdStartChar(u8char ch);
+        static bool isIdContinueChar(u8char ch);
+        static bool isDigit(u8char ch);
+        static bool isHexDigit(u8char ch);
+    };
 
-    template<typename StringT>
-    MEOJSON_INLINE bool parser5<StringT>::unicode::isHexDigit(u8char ch)
+    enum class LexState
     {
-        auto str = StringFromCharCode(ch);
-        return std::regex_search(str, std::regex(R"([0-9A-Fa-f])"));
-    }
+        default_ = 0,
+        comment,
+        multiLineComment,
+        multiLineCommentAsterisk,
+        singleLineComment,
+        value,
+        identifierNameStartEscape,
+        identifierName,
+        identifierNameEscape,
+        sign,
+        zero,
+        decimalInteger,
+        decimalPointLeading,
+        decimalPoint,
+        decimalFraction,
+        decimalExponent,
+        decimalExponentSign,
+        decimalExponentInteger,
+        hexadecimal,
+        hexadecimalInteger,
+        string,
+        start,
+        beforePropertyName,
+        afterPropertyName,
+        beforePropertyValue,
+        afterPropertyValue,
+        beforeArrayValue,
+        afterArrayValue,
+        end
+    };
 
-    /* constrators and callers */
-    template <typename StringT>
-    MEOJSON_INLINE std::optional<value> parse5(const StringT& content, std::string* error = nullptr)
+    enum class ParseState
     {
-        return parser5<StringT>::parse(content, error);
-    }
+        start = 21,
+        beforePropertyName,
+        afterPropertyName,
+        beforePropertyValue,
+        afterPropertyValue,
+        beforeArrayValue,
+        afterArrayValue,
+        end
+    };
 
-    /* Wrapper for handling input of C-style strings. */
-    template <typename CharT>
-    MEOJSON_INLINE std::optional<value> parse5(CharT* content, std::string* error = nullptr)
+    enum class TokenType
     {
-        return parse5(std::basic_string_view<typename std::decay<CharT>::type>{content}, error);
-    }
+        punctuator = 0,
+        identifier,
+        null,
+        boolean,
+        numeric,
+        string,
+        eof,
+    };
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<value> parser5<StringT>::parse(const StringT& content, std::string* error)
+    struct Token
     {
-        try {
-            return parser5<StringT>(content.cbegin(), content.cend()).parse();
-        }
-        catch (json::parser5<StringT>::exception& ex) {
-            if (error) {
-                *error = ex.what();
-            }
-        }
-        return std::nullopt;
-    }
+        TokenType type;
+        value _value;
+        size_t col = 0;
+        size_t line = 0;
+    };
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<value> parser5<StringT>::parse()
-    {
-        do {
-            _token = lex();
-            parseStates(_parse_state);
-        } while (_token->type != TokenType::eof);
+    /* constrators and callers */
+public:
+    ~parser5() noexcept = default;
+    static std::optional<value> parse(const StringT& content, std::string* error = nullptr);
 
-        return _root;
-    }
+private:
+    parser5(const StringIterT& cbegin, const StringIterT& cend) noexcept
+        : _cur(cbegin), _end(cend), _line_begin_cur(cbegin)
+    {}
+    std::optional<value> parse();
 
+private:
+    /* utf-8 reader */
+    static u8char peek(StringIterT& begin, const StringIterT& end, size_t* len = nullptr);
+    static u8char peek(const std::string& str);
+    typename parser5<StringT>::u8char read();
+    static std::string StringFromCharCode(u8char code);
     /* escape and format */
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::literal(const std::string& s)
-    {
-        for (const auto& ch : s) {
-            char p = static_cast<char>(read());
-            if (p != ch) {
-                throw InvalidChar(_current_char, exceptionDetailInfo());
-            }
-        }
-    }
-
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::u8char> parser5<StringT>::escape()
-    {
-        auto c = peek(_cur, _end);
-        switch (c) {
-        case 'b':
-            read();
-            return '\b';
+    void literal(const std::string& s);
+    std::optional<u8char> escape();
+    u8char hexEscape();
+    u8char unicodeEscape();
+    /* lex, parse, token */
+    Token lex();
+    Token newToken(TokenType type, value value);
+
+    std::optional<Token> lex_default();
+    std::optional<Token> lex_comment();
+    std::optional<Token> lex_multiLineComment();
+    std::optional<Token> lex_multiLineCommentAsterisk();
+    std::optional<Token> lex_singleLineComment();
+    std::optional<Token> lex_value();
+    std::optional<Token> lex_identifierNameStartEscape();
+    std::optional<Token> lex_identifierName();
+    std::optional<Token> lex_identifierNameEscape();
+    std::optional<Token> lex_sign();
+    std::optional<Token> lex_zero();
+    std::optional<Token> lex_decimalInteger();
+    std::optional<Token> lex_decimalPointLeading();
+    std::optional<Token> lex_decimalPoint();
+    std::optional<Token> lex_decimalFraction();
+    std::optional<Token> lex_decimalExponent();
+    std::optional<Token> lex_decimalExponentSign();
+    std::optional<Token> lex_decimalExponentInteger();
+    std::optional<Token> lex_hexadecimal();
+    std::optional<Token> lex_hexdecimalInteger();
+    std::optional<Token> lex_string();
+    std::optional<Token> lex_start();
+    std::optional<Token> lex_beforePropertyName();
+    std::optional<Token> lex_afterPropertyName();
+    std::optional<Token> lex_beforePropertyValue();
+    std::optional<Token> lex_afterPropertyValue();
+    std::optional<Token> lex_beforeArrayValue();
+    std::optional<Token> lex_afterArrayValue();
+    std::optional<Token> lex_end();
+
+    std::optional<Token> lexStates(LexState state);
+
+    void parse_start();
+    void parse_beforePropertyName();
+    void parse_afterPropertyName();
+    void parse_beforePropertyValue();
+    void parse_beforeArrayValue();
+    void parse_afterPropertyValue();
+    void parse_afterArrayValue();
+    void parse_end();
+
+    void parseStates(ParseState state);
 
-        case 'f':
-            read();
-            return '\f';
+    /* stack operation */
+    void push();
+    void pop();
+
+private:
+    StringIterT _cur, _end;
+    StringIterT _line_begin_cur;
+    size_t _line = 1, _col = 0, _print_len = 0;
+    ParseState _parse_state = ParseState::start;
+    std::stack<value*> _stack;
+    std::optional<Token> _token;
+    std::string _key;
+    std::optional<value> _root;
+
+    LexState _lex_state = LexState::default_;
+    std::string _buffer;
+    bool _double_quote = false;
+    int64_t _sign = 1;
+    u8char _current_char = 0;
+};
+
+// *************************
+// *    implementation     *
+// *************************
+
+/* parser5<StringT>::unicode */
+template <typename StringT>
+inline const std::wregex parser5<StringT>::unicode::space_separator =
+    std::wregex(LR"([\u1680\u2000-\u200A\u202F\u205F\u3000])");
+
+template <typename StringT>
+inline const std::wregex parser5<StringT>::unicode::id_start =
+    std::wregex(LR"([\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-)"
+                LR"(\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-)"
+                LR"(\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-)"
+                LR"(\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-)"
+                LR"(\u05F2\u0620-\u064A\u066E\u066F\u0671-)"
+                LR"(\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-)"
+                LR"(\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-)"
+                LR"(\u0815\u081A\u0824\u0828\u0840-\u0858\u0860-\u086A\u08A0-\u08B4\u08B6-)"
+                LR"(\u08BD\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-)"
+                LR"(\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-)"
+                LR"(\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u09FC\u0A05-)"
+                LR"(\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-)"
+                LR"(\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-)"
+                LR"(\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-)"
+                LR"(\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0AF9\u0B05-)"
+                LR"(\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-)"
+                LR"(\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-)"
+                LR"(\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-)"
+                LR"(\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-)"
+                LR"(\u0C39\u0C3D\u0C58-\u0C5A\u0C60\u0C61\u0C80\u0C85-\u0C8C\u0C8E-)"
+                LR"(\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-)"
+                LR"(\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-)"
+                LR"(\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D54-\u0D56\u0D5F-\u0D61\u0D7A-)"
+                LR"(\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-)"
+                LR"(\u0E30\u0E32\u0E33\u0E40-)"
+                LR"(\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-)"
+                LR"(\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-)"
+                LR"(\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-)"
+                LR"(\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-)"
+                LR"(\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-)"
+                LR"(\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-)"
+                LR"(\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-)"
+                LR"(\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-)"
+                LR"(\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-)"
+                LR"(\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-)"
+                LR"(\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-)"
+                LR"(\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u1884\u1887-)"
+                LR"(\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-)"
+                LR"(\u19AB\u19B0-\u19C9\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-)"
+                LR"(\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-)"
+                LR"(\u1C4F\u1C5A-\u1C7D\u1C80-\u1C88\u1CE9-\u1CEC\u1CEE-)"
+                LR"(\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-)"
+                LR"(\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-)"
+                LR"(\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-)"
+                LR"(\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-)"
+                LR"(\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-)"
+                LR"(\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-)"
+                LR"(\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-)"
+                LR"(\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-)"
+                LR"(\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-)"
+                LR"(\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-)"
+                LR"(\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-)"
+                LR"(\u30FA\u30FC-\u30FF\u3105-\u312E\u3131-\u318E\u31A0-\u31BA\u31F0-)"
+                LR"(\u31FF\u3400-\u4DB5\u4E00-\u9FEA\uA000-\uA48C\uA4D0-\uA4FD\uA500-)"
+                LR"(\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-)"
+                LR"(\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-)"
+                LR"(\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-)"
+                LR"(\uA8B3\uA8F2-\uA8F7\uA8FB\uA8FD\uA90A-\uA925\uA930-\uA946\uA960-)"
+                LR"(\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-)"
+                LR"(\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-)"
+                LR"(\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-)"
+                LR"(\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-)"
+                LR"(\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABE2\uAC00-)"
+                LR"(\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-)"
+                LR"(\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-)"
+                LR"(\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-)"
+                LR"(\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-)"
+                LR"(\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-)"
+                LR"(\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-)"
+                LR"(\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-)"
+                LR"(\uDD74\uDE80-\uDE9C\uDEA0-\uDED0\uDF00-\uDF1F\uDF2D-\uDF4A\uDF50-)"
+                LR"(\uDF75\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-)"
+                LR"(\uDC9D\uDCB0-\uDCD3\uDCD8-\uDCFB\uDD00-\uDD27\uDD30-\uDD63\uDE00-)"
+                LR"(\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-)"
+                LR"(\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-)"
+                LR"(\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-)"
+                LR"(\uDDB7\uDDBE\uDDBF\uDE00\uDE10-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE60-)"
+                LR"(\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE4\uDF00-\uDF35\uDF40-)"
+                LR"(\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-)"
+                LR"(\uDCF2]|\uD804[\uDC03-\uDC37\uDC83-\uDCAF\uDCD0-\uDCE8\uDD03-\uDD26\uDD50-)"
+                LR"(\uDD72\uDD76\uDD83-\uDDB2\uDDC1-\uDDC4\uDDDA\uDDDC\uDE00-\uDE11\uDE13-)"
+                LR"(\uDE2B\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-)"
+                LR"(\uDEDE\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-)"
+                LR"(\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3D\uDF50\uDF5D-\uDF61]|\uD805[\uDC00-)"
+                LR"(\uDC34\uDC47-\uDC4A\uDC80-\uDCAF\uDCC4\uDCC5\uDCC7\uDD80-\uDDAE\uDDD8-)"
+                LR"(\uDDDB\uDE00-\uDE2F\uDE44\uDE80-\uDEAA\uDF00-\uDF19]|\uD806[\uDCA0-)"
+                LR"(\uDCDF\uDCFF\uDE00\uDE0B-\uDE32\uDE3A\uDE50\uDE5C-\uDE83\uDE86-)"
+                LR"(\uDE89\uDEC0-\uDEF8]|\uD807[\uDC00-\uDC08\uDC0A-\uDC2E\uDC40\uDC72-)"
+                LR"(\uDC8F\uDD00-\uDD06\uDD08\uDD09\uDD0B-\uDD30\uDD46]|\uD808[\uDC00-\uDF99]|)"
+                LR"(\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD81C-\uD820\uD840-)"
+                LR"(\uD868\uD86A-\uD86C\uD86F-\uD872\uD874-\uD879][\uDC00-\uDFFF]|\uD80D[)"
+                LR"(\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-)"
+                LR"(\uDE5E\uDED0-\uDEED\uDF00-\uDF2F\uDF40-\uDF43\uDF63-\uDF77\uDF7D-\uDF8F]|)"
+                LR"(\uD81B[\uDF00-\uDF44\uDF50\uDF93-\uDF9F\uDFE0\uDFE1]|\uD821[\uDC00-\uDFEC])"
+                LR"(|\uD822[\uDC00-\uDEF2]|\uD82C[\uDC00-\uDD1E\uDD70-\uDEFB]|\uD82F[\uDC00-)"
+                LR"(\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99]|\uD835[\uDC00-\uDC54\uDC56-)"
+                LR"(\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-)"
+                LR"(\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-)"
+                LR"(\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-)"
+                LR"(\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-)"
+                LR"(\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-)"
+                LR"(\uDFC2\uDFC4-\uDFCB]|\uD83A[\uDC00-\uDCC4\uDD00-\uDD43]|\uD83B[\uDE00-)"
+                LR"(\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-)"
+                LR"(\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-)"
+                LR"(\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64)"
+                LR"(\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-)"
+                LR"(\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-)"
+                LR"(\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-)"
+                LR"(\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1\uDEB0-\uDFFF]|\uD87A[\uDC00-)"
+                LR"(\uDFE0]|\uD87E[\uDC00-\uDE1D])");
+template <typename StringT>
+inline const std::wregex parser5<StringT>::unicode::id_continue =
+    std::wregex(LR"([\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-)"
+                LR"(\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-)"
+                LR"(\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-)"
+                LR"(\u0481\u0483-\u0487\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u0591-)"
+                LR"(\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-)"
+                LR"(\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-)"
+                LR"(\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-)"
+                LR"(\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u0860-\u086A\u08A0-\u08B4\u08B6-)"
+                LR"(\u08BD\u08D4-\u08E1\u08E3-\u0963\u0966-\u096F\u0971-\u0983\u0985-)"
+                LR"(\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-)"
+                LR"(\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-)"
+                LR"(\u09F1\u09FC\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-)"
+                LR"(\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-)"
+                LR"(\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-)"
+                LR"(\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-)"
+                LR"(\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-)"
+                LR"(\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0AF9-\u0AFF\u0B01-\u0B03\u0B05-)"
+                LR"(\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-)"
+                LR"(\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-)"
+                LR"(\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-)"
+                LR"(\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-)"
+                LR"(\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-)"
+                LR"(\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-)"
+                LR"(\u0BEF\u0C00-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-)"
+                LR"(\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58-)"
+                LR"(\u0C5A\u0C60-\u0C63\u0C66-\u0C6F\u0C80-\u0C83\u0C85-\u0C8C\u0C8E-)"
+                LR"(\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-)"
+                LR"(\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-)"
+                LR"(\u0CEF\u0CF1\u0CF2\u0D00-\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-)"
+                LR"(\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D54-\u0D57\u0D5F-\u0D63\u0D66-)"
+                LR"(\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-)"
+                LR"(\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DE6-)"
+                LR"(\u0DEF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-)"
+                LR"(\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-)"
+                LR"(\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-)"
+                LR"(\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-)"
+                LR"(\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-)"
+                LR"(\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-)"
+                LR"(\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-)"
+                LR"(\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-)"
+                LR"(\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-)"
+                LR"(\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1380-)"
+                LR"(\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-)"
+                LR"(\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1714\u1720-)"
+                LR"(\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-)"
+                LR"(\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-)"
+                LR"(\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191E\u1920-\u192B\u1930-)"
+                LR"(\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-)"
+                LR"(\u19D9\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-)"
+                LR"(\u1A99\u1AA7\u1AB0-\u1ABD\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-)"
+                LR"(\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1C80-\u1C88\u1CD0-)"
+                LR"(\u1CD2\u1CD4-\u1CF9\u1D00-\u1DF9\u1DFB-\u1F15\u1F18-\u1F1D\u1F20-)"
+                LR"(\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-)"
+                LR"(\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-)"
+                LR"(\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-)"
+                LR"(\u1FFC\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-)"
+                LR"(\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2119-)"
+                LR"(\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-)"
+                LR"(\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-)"
+                LR"(\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-)"
+                LR"(\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-)"
+                LR"(\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-)"
+                LR"(\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099\u309A\u309D-)"
+                LR"(\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312E\u3131-\u318E\u31A0-)"
+                LR"(\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FEA\uA000-\uA48C\uA4D0-)"
+                LR"(\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-)"
+                LR"(\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-)"
+                LR"(\uA827\uA840-\uA873\uA880-\uA8C5\uA8D0-\uA8D9\uA8E0-)"
+                LR"(\uA8F7\uA8FB\uA8FD\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-)"
+                LR"(\uA9C0\uA9CF-\uA9D9\uA9E0-\uA9FE\uAA00-\uAA36\uAA40-\uAA4D\uAA50-)"
+                LR"(\uAA59\uAA60-\uAA76\uAA7A-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-)"
+                LR"(\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-)"
+                LR"(\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABEA\uABEC\uABED\uABF0-)"
+                LR"(\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-)"
+                LR"(\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-)"
+                LR"(\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-)"
+                LR"(\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-)"
+                LR"(\uFE2F\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-)"
+                LR"(\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-)"
+                LR"(\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-)"
+                LR"(\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-)"
+                LR"(\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF2D-)"
+                LR"(\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|)"
+                LR"(\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\uDCB0-\uDCD3\uDCD8-\uDCFB\uDD00-)"
+                LR"(\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-)"
+                LR"(\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-)"
+                LR"(\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-)"
+                LR"(\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00-\uDE03\uDE05\uDE06\uDE0C-)"
+                LR"(\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-)"
+                LR"(\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-)"
+                LR"(\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|)"
+                LR"(\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-)"
+                LR"(\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDCA-)"
+                LR"(\uDDCC\uDDD0-\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE37\uDE3E\uDE80-)"
+                LR"(\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEEA\uDEF0-)"
+                LR"(\uDEF9\uDF00-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-)"
+                LR"(\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-)"
+                LR"(\uDF4D\uDF50\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC00-)"
+                LR"(\uDC4A\uDC50-\uDC59\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-)"
+                LR"(\uDDC0\uDDD8-\uDDDD\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-)"
+                LR"(\uDEC9\uDF00-\uDF19\uDF1D-\uDF2B\uDF30-\uDF39]|\uD806[\uDCA0-)"
+                LR"(\uDCE9\uDCFF\uDE00-\uDE3E\uDE47\uDE50-\uDE83\uDE86-\uDE99\uDEC0-\uDEF8]|)"
+                LR"(\uD807[\uDC00-\uDC08\uDC0A-\uDC36\uDC38-\uDC40\uDC50-\uDC59\uDC72-)"
+                LR"(\uDC8F\uDC92-\uDCA7\uDCA9-\uDCB6\uDD00-\uDD06\uDD08\uDD09\uDD0B-)"
+                LR"(\uDD36\uDD3A\uDD3C\uDD3D\uDD3F-\uDD47\uDD50-\uDD59]|\uD808[\uDC00-\uDF99]|)"
+                LR"(\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD81C-\uD820\uD840-)"
+                LR"(\uD868\uD86A-\uD86C\uD86F-\uD872\uD874-\uD879][\uDC00-\uDFFF]|\uD80D[)"
+                LR"(\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-)"
+                LR"(\uDE5E\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-)"
+                LR"(\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-)"
+                LR"(\uDF7E\uDF8F-\uDF9F\uDFE0\uDFE1]|\uD821[\uDC00-\uDFEC]|\uD822[\uDC00-)"
+                LR"(\uDEF2]|\uD82C[\uDC00-\uDD1E\uDD70-\uDEFB]|\uD82F[\uDC00-\uDC6A\uDC70-)"
+                LR"(\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-)"
+                LR"(\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD835[\uDC00-)"
+                LR"(\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-)"
+                LR"(\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-)"
+                LR"(\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-)"
+                LR"(\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-)"
+                LR"(\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-)"
+                LR"(\uDFC2\uDFC4-\uDFCB\uDFCE-\uDFFF]|\uD836[\uDE00-\uDE36\uDE3B-)"
+                LR"(\uDE6C\uDE75\uDE84\uDE9B-\uDE9F\uDEA1-\uDEAF]|\uD838[\uDC00-\uDC06\uDC08-)"
+                LR"(\uDC18\uDC1B-\uDC21\uDC23\uDC24\uDC26-\uDC2A]|\uD83A[\uDC00-\uDCC4\uDCD0-)"
+                LR"(\uDCD6\uDD00-\uDD4A\uDD50-\uDD59]|\uD83B[\uDE00-\uDE03\uDE05-)"
+                LR"(\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-)"
+                LR"(\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-)"
+                LR"(\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64)"
+                LR"(\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-)"
+                LR"(\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-)"
+                LR"(\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-)"
+                LR"(\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1\uDEB0-\uDFFF]|\uD87A[\uDC00-)"
+                LR"(\uDFE0]|\uD87E[\uDC00-\uDE1D]|\uDB40[\uDD00-\uDDEF]|[\u200C\u200D])");
+
+template <typename StringT>
+inline bool parser5<StringT>::unicode::isSpaceSeparator(u8char ch)
+{
+#ifdef _MSC_VER
+    std::wstring wstr = { (wchar_t)ch, 0 };
+#else
+    auto str = StringFromCharCode(ch);
+    auto len = str.size() + 1;
+    std::unique_ptr<wchar_t[]> p(new wchar_t[len]);
+    std::setlocale(LC_CTYPE, ".UTF8");
+    std::mbstowcs(p.get(), str.c_str(), len);
+    std::wstring wstr(p.get());
+#endif
+    return std::regex_search(wstr, unicode::space_separator);
+}
 
-        case 'n':
-            read();
-            return '\n';
+template <typename StringT>
+inline bool parser5<StringT>::unicode::isIdStartChar(u8char ch)
+{
+#ifdef _MSC_VER
+    std::wstring wstr = { (wchar_t)ch, 0 };
+#else
+    auto str = StringFromCharCode(ch);
+    auto len = str.size() + 1;
+    std::unique_ptr<wchar_t[]> p(new wchar_t[len]);
+    std::setlocale(LC_CTYPE, ".UTF8");
+    std::mbstowcs(p.get(), str.c_str(), len);
+    std::wstring wstr(p.get());
+#endif
+    return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (ch == '$') || (ch == '_') ||
+           std::regex_search(wstr, unicode::id_start);
+}
 
-        case 'r':
-            read();
-            return '\r';
+template <typename StringT>
+inline bool parser5<StringT>::unicode::isIdContinueChar(u8char ch)
+{
+#ifdef _MSC_VER
+    std::wstring wstr = { (wchar_t)ch, 0 };
+#else
+    auto str = StringFromCharCode(ch);
+    auto len = str.size() + 1;
+    std::unique_ptr<wchar_t[]> p(new wchar_t[len]);
+    std::setlocale(LC_CTYPE, ".UTF8");
+    std::mbstowcs(p.get(), str.c_str(), len);
+    std::wstring wstr(p.get());
+#endif
+    return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (ch >= '0' && ch <= '9') || (ch == '$') ||
+           (ch == '_') || std::regex_search(wstr, unicode::id_continue);
+}
 
-        case 't':
-            read();
-            return '\t';
+template <typename StringT>
+inline bool parser5<StringT>::unicode::isDigit(u8char ch)
+{
+    auto str = StringFromCharCode(ch);
+    return std::regex_search(str, std::regex(R"([0-9])"));
+}
 
-        case 'v':
-            read();
-            return '\v';
+template <typename StringT>
+inline bool parser5<StringT>::unicode::isHexDigit(u8char ch)
+{
+    auto str = StringFromCharCode(ch);
+    return std::regex_search(str, std::regex(R"([0-9A-Fa-f])"));
+}
 
-        case '0':
-            read();
-            if (unicode::isDigit(peek(_cur, _end))) {
-                throw InvalidChar(_current_char, exceptionDetailInfo());
-            }
+/* constrators and callers */
+template <typename StringT>
+std::optional<value> parse5(const StringT& content, std::string* error = nullptr)
+{
+    return parser5<StringT>::parse(content, error);
+}
 
-            return '\0';
+/* Wrapper for handling input of C-style strings. */
+template <typename CharT>
+std::optional<value> parse5(CharT* content, std::string* error = nullptr)
+{
+    return parse5(std::basic_string_view<std::decay_t<CharT>> { content }, error);
+}
 
-        case 'x':
-            read();
-            return hexEscape();
+template <typename StringT>
+inline std::optional<value> parser5<StringT>::parse(const StringT& content, std::string* error)
+{
+    try {
+        return parser5<StringT>(content.cbegin(), content.cend()).parse();
+    }
+    catch (json::parser5<StringT>::exception& ex) {
+        if (error) {
+            *error = ex.what();
+        }
+    }
+    return std::nullopt;
+}
 
-        case 'u':
-            read();
-            return unicodeEscape();
+template <typename StringT>
+inline std::optional<value> parser5<StringT>::parse()
+{
+    do {
+        _token = lex();
+        parseStates(_parse_state);
+    } while (_token->type != TokenType::eof);
 
-        case '\n':
-        case 0x2028:
-        case 0x2029:
-            read();
-            return 0;
+    return _root;
+}
 
-        case '\r':
-            read();
-            if (peek(_cur, _end) == '\n') {
-                read();
-            }
-
-            return std::nullopt;
-
-        case '1':
-        case '2':
-        case '3':
-        case '4':
-        case '5':
-        case '6':
-        case '7':
-        case '8':
-        case '9':
+/* escape and format */
+template <typename StringT>
+inline void parser5<StringT>::literal(const std::string& s)
+{
+    for (const auto& ch : s) {
+        char p = static_cast<char>(read());
+        if (p != ch) {
             throw InvalidChar(_current_char, exceptionDetailInfo());
-        default:
-            if (c == 0) {
-                throw InvalidChar(_current_char, exceptionDetailInfo());
-            }
         }
-
-        return read();
     }
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE typename parser5<StringT>::u8char parser5<StringT>::hexEscape()
-    {
-        std::string buffer = "";
-        auto c = peek(_cur, _end);
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::u8char> parser5<StringT>::escape()
+{
+    auto c = peek(_cur, _end);
+    switch (c) {
+    case 'b':
+        read();
+        return '\b';
 
-        if (!unicode::isHexDigit(c)) {
-            throw InvalidChar(_current_char, exceptionDetailInfo());
-        }
+    case 'f':
+        read();
+        return '\f';
 
-        buffer += static_cast<char>(read());
+    case 'n':
+        read();
+        return '\n';
 
-        c = peek(_cur, _end);
-        if (!unicode::isHexDigit(c)) {
+    case 'r':
+        read();
+        return '\r';
+
+    case 't':
+        read();
+        return '\t';
+
+    case 'v':
+        read();
+        return '\v';
+
+    case '0':
+        read();
+        if (unicode::isDigit(peek(_cur, _end))) {
             throw InvalidChar(_current_char, exceptionDetailInfo());
         }
 
-        buffer += static_cast<char>(read());
+        return '\0';
 
-        return std::stoi(buffer, nullptr, 16);
-    }
+    case 'x':
+        read();
+        return hexEscape();
 
-    template<typename StringT>
-    MEOJSON_INLINE typename parser5<StringT>::u8char parser5<StringT>::unicodeEscape()
-    {
-        std::string buffer;
-        int count = 4;
-        while (count-- > 0) {
-            auto c = peek(_cur, _end);
-            if (!unicode::isHexDigit(c)) {
-                throw InvalidChar(_current_char, exceptionDetailInfo());
-            }
-            buffer += StringFromCharCode(read());
-        }
+    case 'u':
+        read();
+        return unicodeEscape();
 
-        return std::stoull(buffer, nullptr, 16);
-    }
+    case '\n':
+    case 0x2028:
+    case 0x2029:
+        read();
+        return 0;
 
-    /* utf-8 reader */
-    template<typename StringT>
-    MEOJSON_INLINE typename parser5<StringT>::u8char parser5<StringT>::peek(StringIterT& begin,
-                                  const StringIterT& end,
-                                  size_t* plen)
-    {
-        if (begin == end) {
-            if (plen)
-                *plen = 0;
-            return 0;
-        }
-        uint8_t head = (*begin);
-        uint64_t ch = head;
-        size_t len = 1;
-        while (begin != end && (head & 0b11000000) > 0b10000000) {
-            head <<= 1;
-            ++len;
-            ch <<= 8;
-            ch += (uint8_t)(*(begin + len - 1));
-        }
-        if (plen) {
-            *plen = len;
+    case '\r':
+        read();
+        if (peek(_cur, _end) == '\n') {
+            read();
         }
-        return ch;
-    }
 
-    template<typename StringT>
-    MEOJSON_INLINE typename parser5<StringT>::u8char parser5<StringT>::peek(const std::string& str)
-    {
-        auto begin = str.begin();
-        return peek(begin, str.cend());
-    }
-    MEOJSON_INLINE constexpr size_t operator"" _sz(unsigned long long size) { return size; }
-    template<typename StringT>
-    MEOJSON_INLINE typename parser5<StringT>::u8char parser5<StringT>::read()
-    {
-        size_t len = 0;
-        _current_char = peek(_cur, _end, &len);
-        if (_current_char == '\n') {
-            _line++;
-            _col = 0;
-            _print_len = 0;
-            _line_begin_cur = _cur + 1;
-        }
-        else if (_current_char > 0) {
-            _col++;
-        }
+        return std::nullopt;
 
-        if (len > 0) {
-            _print_len += (std::min)(len, 2_sz);
-            _cur += len;
+    case '1':
+    case '2':
+    case '3':
+    case '4':
+    case '5':
+    case '6':
+    case '7':
+    case '8':
+    case '9':
+        throw InvalidChar(_current_char, exceptionDetailInfo());
+    default:
+        if (c == 0) {
+            throw InvalidChar(_current_char, exceptionDetailInfo());
         }
-        return _current_char;
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::string parser5<StringT>::StringFromCharCode(typename parser5<StringT>::u8char code)
-    {
-        if (code == 0)
-            return "";
-        std::string str;
-        for (auto i = 0; i < 8; ++i) {
-            auto ch = (0xff & code);
-            if (ch)
-                str.insert(0, 1, static_cast<char>(ch));
-            code >>= 8;
-        }
-        return str;
-    }
+    return read();
+}
 
-    /* lex, parse, token */
+template <typename StringT>
+inline typename parser5<StringT>::u8char parser5<StringT>::hexEscape()
+{
+    std::string buffer = "";
+    auto c = peek(_cur, _end);
 
-    template<typename StringT>
-    MEOJSON_INLINE typename parser5<StringT>::Token parser5<StringT>::newToken(TokenType type, value value)
-    {
-        Token token;
-        token.type = type;
-        token._value = value;
-        token.line = _line;
-        token.col = _col;
-        return token;
+    if (!unicode::isHexDigit(c)) {
+        throw InvalidChar(_current_char, exceptionDetailInfo());
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE typename parser5<StringT>::Token parser5<StringT>::lex()
-    {
-        _lex_state = LexState::default_;
-        _buffer = "";
-        _double_quote = false;
-        _sign = 1;
+    buffer += static_cast<char>(read());
 
-        std::optional<Token> token;
+    c = peek(_cur, _end);
+    if (!unicode::isHexDigit(c)) {
+        throw InvalidChar(_current_char, exceptionDetailInfo());
+    }
 
-        for (;;) {
-            _current_char = peek(_cur, _end);
+    buffer += static_cast<char>(read());
 
-            token = lexStates(_lex_state);
-            if (token.has_value()) {
-                return token.value();
-            }
+    return std::stoi(buffer, nullptr, 16);
+}
+
+template <typename StringT>
+inline typename parser5<StringT>::u8char parser5<StringT>::unicodeEscape()
+{
+    std::string buffer;
+    int count = 4;
+    while (count-- > 0) {
+        auto c = peek(_cur, _end);
+        if (!unicode::isHexDigit(c)) {
+            throw InvalidChar(_current_char, exceptionDetailInfo());
         }
+        buffer += StringFromCharCode(read());
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_default()
-    {
-        switch (_current_char) {
-        case '\t':
-        case '\v':
-        case '\f':
-        case ' ':
-        case '\n':
-        case '\r':
-        case 0x00A0:
-        case 0xFEFF:
-        case 0x2028:
-        case 0x2029:
-            read();
-            return std::nullopt;
-        case '/':
-            read();
-            _lex_state = LexState::comment;
-            return std::nullopt;
-        case 0:
-            read();
-            return newToken(TokenType::eof, value());
-        }
+    return std::stoull(buffer, nullptr, 16);
+}
 
-        // if (_current_char.size() == 0) {
-        //   read();
-        //   return newToken("eof");
-        // }
+/* utf-8 reader */
+template <typename StringT>
+inline typename parser5<StringT>::u8char parser5<StringT>::peek(StringIterT& begin, const StringIterT& end,
+                                                                size_t* plen)
+{
+    if (begin == end) {
+        if (plen) *plen = 0;
+        return 0;
+    }
+    uint8_t head = (*begin);
+    uint64_t ch = head;
+    size_t len = 1;
+    while (begin != end && (head & 0b11000000) > 0b10000000) {
+        head <<= 1;
+        ++len;
+        ch <<= 8;
+        ch += (uint8_t)(*(begin + len - 1));
+    }
+    if (plen) {
+        *plen = len;
+    }
+    return ch;
+}
 
-        if (unicode::isSpaceSeparator(_current_char)) {
-            read();
-            return std::nullopt;
-        }
+template <typename StringT>
+inline typename parser5<StringT>::u8char parser5<StringT>::peek(const std::string& str)
+{
+    auto begin = str.begin();
+    return peek(begin, str.cend());
+}
+inline constexpr size_t operator"" _sz(unsigned long long size)
+{
+    return size;
+}
+template <typename StringT>
+inline typename parser5<StringT>::u8char parser5<StringT>::read()
+{
+    size_t len = 0;
+    _current_char = peek(_cur, _end, &len);
+    if (_current_char == '\n') {
+        _line++;
+        _col = 0;
+        _print_len = 0;
+        _line_begin_cur = _cur + 1;
+    }
+    else if (_current_char > 0) {
+        _col++;
+    }
 
-        //      throw InvalidLexState();
-        return lexStates((LexState)_parse_state);
+    if (len > 0) {
+        _print_len += (std::min)(len, 2_sz);
+        _cur += len;
     }
+    return _current_char;
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_comment()
-    {
-        switch (_current_char) {
-        case '*':
-            read();
-            _lex_state = LexState::multiLineComment;
-            return std::nullopt;
+template <typename StringT>
+inline std::string parser5<StringT>::StringFromCharCode(typename parser5<StringT>::u8char code)
+{
+    if (code == 0) return "";
+    std::string str;
+    for (auto i = 0; i < 8; ++i) {
+        auto ch = (0xff & code);
+        if (ch) str.insert(0, 1, static_cast<char>(ch));
+        code >>= 8;
+    }
+    return str;
+}
 
-        case '/':
-            read();
-            _lex_state = LexState::singleLineComment;
-            return std::nullopt;
-        }
+/* lex, parse, token */
 
-        throw InvalidChar(_current_char, exceptionDetailInfo());
-    }
+template <typename StringT>
+inline typename parser5<StringT>::Token parser5<StringT>::newToken(TokenType type, value value)
+{
+    Token token;
+    token.type = type;
+    token._value = value;
+    token.line = _line;
+    token.col = _col;
+    return token;
+}
+
+template <typename StringT>
+inline typename parser5<StringT>::Token parser5<StringT>::lex()
+{
+    _lex_state = LexState::default_;
+    _buffer = "";
+    _double_quote = false;
+    _sign = 1;
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_multiLineComment()
-    {
-        if (_current_char == '*') {
-            read();
-            _lex_state = LexState::multiLineCommentAsterisk;
-            return std::nullopt;
-        }
+    std::optional<Token> token;
 
-        if (_current_char == 0) {
-            throw InvalidChar(_current_char, exceptionDetailInfo());
+    for (;;) {
+        _current_char = peek(_cur, _end);
+
+        token = lexStates(_lex_state);
+        if (token.has_value()) {
+            return token.value();
         }
+    }
+}
 
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_default()
+{
+    switch (_current_char) {
+    case '\t':
+    case '\v':
+    case '\f':
+    case ' ':
+    case '\n':
+    case '\r':
+    case 0x00A0:
+    case 0xFEFF:
+    case 0x2028:
+    case 0x2029:
+        read();
+        return std::nullopt;
+    case '/':
         read();
+        _lex_state = LexState::comment;
         return std::nullopt;
+    case 0:
+        read();
+        return newToken(TokenType::eof, value());
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_multiLineCommentAsterisk()
-    {
-        switch (_current_char) {
-        case '*':
-            read();
-            return std::nullopt;
+    // if (_current_char.size() == 0) {
+    //   read();
+    //   return newToken("eof");
+    // }
 
-        case '/':
-            read();
-            _lex_state = LexState::default_;
-            return std::nullopt; //$
+    if (unicode::isSpaceSeparator(_current_char)) {
+        read();
+        return std::nullopt;
+    }
 
-        default:
-            if (_current_char == 0) {
-                throw InvalidChar(_current_char, exceptionDetailInfo());
-            }
-        }
+    //      throw InvalidLexState();
+    return lexStates((LexState)_parse_state);
+}
 
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_comment()
+{
+    switch (_current_char) {
+    case '*':
         read();
         _lex_state = LexState::multiLineComment;
         return std::nullopt;
+
+    case '/':
+        read();
+        _lex_state = LexState::singleLineComment;
+        return std::nullopt;
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_singleLineComment()
-    {
-        switch (_current_char) {
-        case '\n':
-        case '\r':
-        case 0x2028:
-        case 0x2029:
-            read();
-            _lex_state = LexState::default_;
-            return std::nullopt;
-        case 0:
-            read();
-            return newToken(TokenType::eof, value());
-        }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
+
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_multiLineComment()
+{
+    if (_current_char == '*') {
         read();
+        _lex_state = LexState::multiLineCommentAsterisk;
         return std::nullopt;
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_value()
-    {
-        switch (_current_char) {
-        case '{':
-        case '[':
-            return newToken(TokenType::punctuator, value(StringFromCharCode(read())));
-        case 'n':
-            read();
-            literal("ull");
-            return newToken(TokenType::null, value());
-        case 't':
-            read();
-            literal("rue");
-            return newToken(TokenType::boolean, value(true));
-        case 'f':
-            read();
-            literal("alse");
-            return newToken(TokenType::boolean, value(false));
-        case '-':
-        case '+':
-            if (read() == '-') {
-                _sign = -1;
-            }
-            _lex_state = LexState::sign;
-            return std::nullopt;
-        case '.':
-            _buffer = StringFromCharCode(read());
-            _lex_state = LexState::decimalPointLeading;
-            return std::nullopt;
-
-        case '0':
-            _buffer = StringFromCharCode(read());
-            _lex_state = LexState::zero;
-            return std::nullopt;
-        case '1':
-        case '2':
-        case '3':
-        case '4':
-        case '5':
-        case '6':
-        case '7':
-        case '8':
-        case '9':
-            _buffer = StringFromCharCode(read());
-            _lex_state = LexState::decimalInteger;
-            return std::nullopt;
-        case 'I':
-            read();
-            literal("nfinity");
-            return newToken(TokenType::numeric, INFINITY);
-        case 'N':
-            read();
-            literal("aN");
-            return newToken(TokenType::numeric, NAN);
-        case '\"':
-        case '\'':
-            _double_quote = (read() == '\"');
-            _buffer = "";
-            _lex_state = LexState::string;
-            return std::nullopt;
-        }
+    if (_current_char == 0) {
         throw InvalidChar(_current_char, exceptionDetailInfo());
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_identifierNameStartEscape()
-    {
-        if (_current_char != 'u') {
+    read();
+    return std::nullopt;
+}
+
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_multiLineCommentAsterisk()
+{
+    switch (_current_char) {
+    case '*':
+        read();
+        return std::nullopt;
+
+    case '/':
+        read();
+        _lex_state = LexState::default_;
+        return std::nullopt; //$
+
+    default:
+        if (_current_char == 0) {
             throw InvalidChar(_current_char, exceptionDetailInfo());
         }
+    }
+
+    read();
+    _lex_state = LexState::multiLineComment;
+    return std::nullopt;
+}
+
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_singleLineComment()
+{
+    switch (_current_char) {
+    case '\n':
+    case '\r':
+    case 0x2028:
+    case 0x2029:
         read();
-        auto u = unicodeEscape();
-        switch (u) {
-        case '$':
-        case '_':
-            break;
-        default:
-            if (!unicode::isIdStartChar(u)) {
-                throw InvalidIdentifier("", exceptionDetailInfo());
-            }
-            break;
-        }
-        _buffer += StringFromCharCode(u);
-        _lex_state = LexState::identifierName;
+        _lex_state = LexState::default_;
         return std::nullopt;
+    case 0:
+        read();
+        return newToken(TokenType::eof, value());
     }
+    read();
+    return std::nullopt;
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_identifierName()
-    {
-        switch (_current_char) {
-        case '$':
-        case '_':
-        case 0x200C:
-        case 0x200D:
-            _buffer += StringFromCharCode(read());
-            return std::nullopt;
-        case '\\':
-            read();
-            _lex_state = LexState::identifierNameEscape;
-            return std::nullopt;
-        }
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_value()
+{
+    switch (_current_char) {
+    case '{':
+    case '[':
+        return newToken(TokenType::punctuator, value(StringFromCharCode(read())));
+    case 'n':
+        read();
+        literal("ull");
+        return newToken(TokenType::null, value());
+    case 't':
+        read();
+        literal("rue");
+        return newToken(TokenType::boolean, value(true));
+    case 'f':
+        read();
+        literal("alse");
+        return newToken(TokenType::boolean, value(false));
+    case '-':
+    case '+':
+        if (read() == '-') {
+            _sign = -1;
+        }
+        _lex_state = LexState::sign;
+        return std::nullopt;
+    case '.':
+        _buffer = StringFromCharCode(read());
+        _lex_state = LexState::decimalPointLeading;
+        return std::nullopt;
 
-        if (unicode::isIdContinueChar(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            return std::nullopt;
-        }
+    case '0':
+        _buffer = StringFromCharCode(read());
+        _lex_state = LexState::zero;
+        return std::nullopt;
+    case '1':
+    case '2':
+    case '3':
+    case '4':
+    case '5':
+    case '6':
+    case '7':
+    case '8':
+    case '9':
+        _buffer = StringFromCharCode(read());
+        _lex_state = LexState::decimalInteger;
+        return std::nullopt;
+    case 'I':
+        read();
+        literal("nfinity");
+        return newToken(TokenType::numeric, INFINITY);
+    case 'N':
+        read();
+        literal("aN");
+        return newToken(TokenType::numeric, NAN);
+    case '\"':
+    case '\'':
+        _double_quote = (read() == '\"');
+        _buffer = "";
+        _lex_state = LexState::string;
+        return std::nullopt;
+    }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
 
-        return newToken(TokenType::identifier, _buffer);
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_identifierNameStartEscape()
+{
+    if (_current_char != 'u') {
+        throw InvalidChar(_current_char, exceptionDetailInfo());
     }
+    read();
+    auto u = unicodeEscape();
+    switch (u) {
+    case '$':
+    case '_':
+        break;
+    default:
+        if (!unicode::isIdStartChar(u)) {
+            throw InvalidIdentifier("", exceptionDetailInfo());
+        }
+        break;
+    }
+    _buffer += StringFromCharCode(u);
+    _lex_state = LexState::identifierName;
+    return std::nullopt;
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_identifierNameEscape()
-    {
-        if (_current_char != 'u') {
-            throw InvalidChar(_current_char, exceptionDetailInfo());
-        }
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_identifierName()
+{
+    switch (_current_char) {
+    case '$':
+    case '_':
+    case 0x200C:
+    case 0x200D:
+        _buffer += StringFromCharCode(read());
+        return std::nullopt;
+    case '\\':
         read();
-        auto u = unicodeEscape();
-        switch (u) {
-        case '$':
-        case '_':
-        case 0x200C:
-        case 0x200D:
-            break;
-        default:
-            if (!unicode::isIdStartChar(u)) {
-                throw InvalidIdentifier("", exceptionDetailInfo());
-            }
-            break;
-        }
-        _buffer += StringFromCharCode(u);
-        _lex_state = LexState::identifierName;
+        _lex_state = LexState::identifierNameEscape;
         return std::nullopt;
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_sign()
-    {
-        switch (_current_char) {
-        case '.':
-            _buffer = StringFromCharCode(read());
-            _lex_state = LexState::decimalPointLeading;
-            return std::nullopt;
-
-        case '0':
-            _buffer = StringFromCharCode(read());
-            _lex_state = LexState::zero;
-            return std::nullopt;
-
-        case '1':
-        case '2':
-        case '3':
-        case '4':
-        case '5':
-        case '6':
-        case '7':
-        case '8':
-        case '9':
-            _buffer = StringFromCharCode(read());
-            _lex_state = LexState::decimalInteger;
-            return std::nullopt;
-
-        case 'I':
-            read();
-            literal("nfinity");
-            return newToken(TokenType::numeric, _sign * INFINITY);
+    if (unicode::isIdContinueChar(_current_char)) {
+        _buffer += StringFromCharCode(read());
+        return std::nullopt;
+    }
 
-        case 'N':
-            read();
-            literal("aN");
-            return newToken(TokenType::numeric, NAN);
-        }
+    return newToken(TokenType::identifier, _buffer);
+}
+
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_identifierNameEscape()
+{
+    if (_current_char != 'u') {
         throw InvalidChar(_current_char, exceptionDetailInfo());
     }
+    read();
+    auto u = unicodeEscape();
+    switch (u) {
+    case '$':
+    case '_':
+    case 0x200C:
+    case 0x200D:
+        break;
+    default:
+        if (!unicode::isIdStartChar(u)) {
+            throw InvalidIdentifier("", exceptionDetailInfo());
+        }
+        break;
+    }
+    _buffer += StringFromCharCode(u);
+    _lex_state = LexState::identifierName;
+    return std::nullopt;
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_zero()
-    {
-        switch (_current_char) {
-        case '.':
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalPoint;
-            return std::nullopt; //$
-
-        case 'e':
-        case 'E':
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalExponent;
-            return std::nullopt; //$
-
-        case 'x':
-        case 'X':
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::hexadecimal;
-            return std::nullopt; //$
-        }
-        return newToken(TokenType::numeric, _sign * 0);
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_sign()
+{
+    switch (_current_char) {
+    case '.':
+        _buffer = StringFromCharCode(read());
+        _lex_state = LexState::decimalPointLeading;
+        return std::nullopt;
+
+    case '0':
+        _buffer = StringFromCharCode(read());
+        _lex_state = LexState::zero;
+        return std::nullopt;
+
+    case '1':
+    case '2':
+    case '3':
+    case '4':
+    case '5':
+    case '6':
+    case '7':
+    case '8':
+    case '9':
+        _buffer = StringFromCharCode(read());
+        _lex_state = LexState::decimalInteger;
+        return std::nullopt;
+
+    case 'I':
+        read();
+        literal("nfinity");
+        return newToken(TokenType::numeric, _sign * INFINITY);
+
+    case 'N':
+        read();
+        literal("aN");
+        return newToken(TokenType::numeric, NAN);
     }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalInteger()
-    {
-        switch (_current_char) {
-        case '.':
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalPoint;
-            return std::nullopt;
-        case 'e':
-        case 'E':
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalExponent;
-            return std::nullopt; //$
-        }
-        if (unicode::isDigit(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            return std::nullopt;
-        }
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_zero()
+{
+    switch (_current_char) {
+    case '.':
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalPoint;
+        return std::nullopt; //$
+
+    case 'e':
+    case 'E':
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalExponent;
+        return std::nullopt; //$
 
-        return newToken(TokenType::numeric, _sign * std::stod(_buffer));
+    case 'x':
+    case 'X':
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::hexadecimal;
+        return std::nullopt; //$
     }
+    return newToken(TokenType::numeric, _sign * 0);
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalPointLeading()
-    {
-        if (unicode::isDigit(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalFraction;
-            return std::nullopt;
-        }
-        throw InvalidChar(_current_char, exceptionDetailInfo());
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalInteger()
+{
+    switch (_current_char) {
+    case '.':
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalPoint;
+        return std::nullopt;
+    case 'e':
+    case 'E':
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalExponent;
+        return std::nullopt; //$
+    }
+    if (unicode::isDigit(_current_char)) {
+        _buffer += StringFromCharCode(read());
+        return std::nullopt;
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalPoint()
-    {
-        switch (_current_char) {
-        case 'e':
-        case 'E':
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalExponent;
-            return std::nullopt; //$
-        }
-        if (unicode::isDigit(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalFraction;
-            return std::nullopt;
-        }
+    return newToken(TokenType::numeric, _sign * std::stod(_buffer));
+}
 
-        return newToken(TokenType::numeric, _sign * std::stod(_buffer));
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalPointLeading()
+{
+    if (unicode::isDigit(_current_char)) {
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalFraction;
+        return std::nullopt;
     }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalFraction()
-    {
-        switch (_current_char) {
-        case 'e':
-        case 'E':
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalExponent;
-            return std::nullopt; //$
-        }
-        if (unicode::isDigit(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            return std::nullopt;
-        }
-
-        return newToken(TokenType::numeric, _sign * std::stod(_buffer));
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalPoint()
+{
+    switch (_current_char) {
+    case 'e':
+    case 'E':
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalExponent;
+        return std::nullopt; //$
+    }
+    if (unicode::isDigit(_current_char)) {
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalFraction;
+        return std::nullopt;
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalExponent()
-    {
-        switch (_current_char) {
-        case '+':
-        case '-':
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalExponentSign;
-            return std::nullopt; //$
-        }
+    return newToken(TokenType::numeric, _sign * std::stod(_buffer));
+}
 
-        if (unicode::isDigit(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalExponentInteger;
-            return std::nullopt;
-        }
-        throw InvalidChar(_current_char, exceptionDetailInfo());
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalFraction()
+{
+    switch (_current_char) {
+    case 'e':
+    case 'E':
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalExponent;
+        return std::nullopt; //$
     }
-
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalExponentSign()
-    {
-        if (unicode::isDigit(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::decimalExponentInteger;
-            return std::nullopt;
-        }
-        throw InvalidChar(_current_char, exceptionDetailInfo());
+    if (unicode::isDigit(_current_char)) {
+        _buffer += StringFromCharCode(read());
+        return std::nullopt;
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalExponentInteger()
-    {
-        if (unicode::isDigit(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            return std::nullopt;
-        }
-        return newToken(TokenType::numeric, _sign * std::stod(_buffer));
+    return newToken(TokenType::numeric, _sign * std::stod(_buffer));
+}
+
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalExponent()
+{
+    switch (_current_char) {
+    case '+':
+    case '-':
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalExponentSign;
+        return std::nullopt; //$
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_hexadecimal()
-    {
-        if (unicode::isHexDigit(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::hexadecimalInteger;
-            return std::nullopt;
-        }
-        throw InvalidChar(_current_char, exceptionDetailInfo());
+    if (unicode::isDigit(_current_char)) {
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalExponentInteger;
+        return std::nullopt;
     }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_hexdecimalInteger()
-    {
-        if (unicode::isHexDigit(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            return std::nullopt;
-        }
-        return newToken(TokenType::numeric, _sign * std::stod(_buffer));
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalExponentSign()
+{
+    if (unicode::isDigit(_current_char)) {
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::decimalExponentInteger;
+        return std::nullopt;
     }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_string()
-    {
-        switch (_current_char) {
-        case '\\':
-            read();
-            _buffer += StringFromCharCode(escape().value_or(0));
-            return std::nullopt;
-        case '\"':
-            if (_double_quote) {
-                read();
-                return newToken(TokenType::string, _buffer);
-            }
-            _buffer += StringFromCharCode(read());
-            return std::nullopt;
-        case '\'':
-            if (!_double_quote) {
-                read();
-                return newToken(TokenType::string, _buffer);
-            }
-            _buffer += StringFromCharCode(read());
-            return std::nullopt;
-        case '\n':
-        case '\r':
-            throw InvalidChar(_current_char, exceptionDetailInfo());
-        case 0x2028:
-        case 0x2029:
-            // throw separatorChar(_current_char);
-            break;
-        default:
-            if (_current_char == 0) {
-                throw InvalidChar(_current_char, exceptionDetailInfo());
-            }
-        }
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_decimalExponentInteger()
+{
+    if (unicode::isDigit(_current_char)) {
         _buffer += StringFromCharCode(read());
         return std::nullopt;
     }
+    return newToken(TokenType::numeric, _sign * std::stod(_buffer));
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_start()
-    {
-        switch (_current_char) {
-        case '{':
-        case '[':
-            return newToken(TokenType::punctuator, StringFromCharCode(read()));
-        }
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_hexadecimal()
+{
+    if (unicode::isHexDigit(_current_char)) {
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::hexadecimalInteger;
+        return std::nullopt;
+    }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
 
-        _lex_state = LexState::value;
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_hexdecimalInteger()
+{
+    if (unicode::isHexDigit(_current_char)) {
+        _buffer += StringFromCharCode(read());
         return std::nullopt;
     }
+    return newToken(TokenType::numeric, _sign * std::stod(_buffer));
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_beforePropertyName()
-    {
-        switch (_current_char) {
-        case '$':
-        case '_':
-            _buffer = StringFromCharCode(read());
-            _lex_state = LexState::identifierName;
-            return std::nullopt;
-        case '\\':
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_string()
+{
+    switch (_current_char) {
+    case '\\':
+        read();
+        _buffer += StringFromCharCode(escape().value_or(0));
+        return std::nullopt;
+    case '\"':
+        if (_double_quote) {
             read();
-            _lex_state = LexState::identifierNameStartEscape;
-            return std::nullopt;
-        case '}':
-            return newToken(TokenType::punctuator, StringFromCharCode(read()));
-        case '\"':
-        case '\'':
-            _double_quote = (read() == '\"');
-            _lex_state = LexState::string;
-            return std::nullopt;
+            return newToken(TokenType::string, _buffer);
         }
-
-        if (unicode::isIdStartChar(_current_char)) {
-            _buffer += StringFromCharCode(read());
-            _lex_state = LexState::identifierName;
-            return std::nullopt;
+        _buffer += StringFromCharCode(read());
+        return std::nullopt;
+    case '\'':
+        if (!_double_quote) {
+            read();
+            return newToken(TokenType::string, _buffer);
         }
-
+        _buffer += StringFromCharCode(read());
+        return std::nullopt;
+    case '\n':
+    case '\r':
         throw InvalidChar(_current_char, exceptionDetailInfo());
-    }
-
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_afterPropertyName()
-    {
-        if (_current_char == ':') {
-            return newToken(TokenType::punctuator, StringFromCharCode(read()));
+    case 0x2028:
+    case 0x2029:
+        // throw separatorChar(_current_char);
+        break;
+    default:
+        if (_current_char == 0) {
+            throw InvalidChar(_current_char, exceptionDetailInfo());
         }
-        throw InvalidChar(_current_char, exceptionDetailInfo());
     }
+    _buffer += StringFromCharCode(read());
+    return std::nullopt;
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_beforePropertyValue()
-    {
-        _lex_state = LexState::value;
-        return std::nullopt;
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_start()
+{
+    switch (_current_char) {
+    case '{':
+    case '[':
+        return newToken(TokenType::punctuator, StringFromCharCode(read()));
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_afterPropertyValue()
-    {
-        switch (_current_char) {
-        case ',':
-        case '}':
-            return newToken(TokenType::punctuator, StringFromCharCode(read()));
-        }
-        throw InvalidChar(_current_char, exceptionDetailInfo());
+    _lex_state = LexState::value;
+    return std::nullopt;
+}
+
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_beforePropertyName()
+{
+    switch (_current_char) {
+    case '$':
+    case '_':
+        _buffer = StringFromCharCode(read());
+        _lex_state = LexState::identifierName;
+        return std::nullopt;
+    case '\\':
+        read();
+        _lex_state = LexState::identifierNameStartEscape;
+        return std::nullopt;
+    case '}':
+        return newToken(TokenType::punctuator, StringFromCharCode(read()));
+    case '\"':
+    case '\'':
+        _double_quote = (read() == '\"');
+        _lex_state = LexState::string;
+        return std::nullopt;
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_beforeArrayValue()
-    {
-        if (_current_char == ']') {
-            return newToken(TokenType::punctuator, StringFromCharCode(read()));
-        }
-        _lex_state = LexState::value;
+    if (unicode::isIdStartChar(_current_char)) {
+        _buffer += StringFromCharCode(read());
+        _lex_state = LexState::identifierName;
         return std::nullopt;
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_afterArrayValue()
-    {
-        switch (_current_char) {
-        case ',':
-        case ']':
-            return newToken(TokenType::punctuator, StringFromCharCode(read()));
-        }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
 
-        throw InvalidChar(_current_char, exceptionDetailInfo());
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_afterPropertyName()
+{
+    if (_current_char == ':') {
+        return newToken(TokenType::punctuator, StringFromCharCode(read()));
     }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_end()
-    {
-        throw InvalidChar(_current_char, exceptionDetailInfo());
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_beforePropertyValue()
+{
+    _lex_state = LexState::value;
+    return std::nullopt;
+}
+
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_afterPropertyValue()
+{
+    switch (_current_char) {
+    case ',':
+    case '}':
+        return newToken(TokenType::punctuator, StringFromCharCode(read()));
     }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE std::optional<typename parser5<StringT>::Token> parser5<StringT>::lexStates(LexState state)
-    {
-        switch (state) {
-        case LexState::default_:
-            return lex_default();
-        case LexState::comment:
-            return lex_comment();
-        case LexState::multiLineComment:
-            return lex_multiLineComment();
-        case LexState::multiLineCommentAsterisk:
-            return lex_multiLineCommentAsterisk();
-        case LexState::singleLineComment:
-            return lex_singleLineComment();
-        case LexState::value:
-            return lex_value();
-        case LexState::identifierNameStartEscape:
-            return lex_identifierNameStartEscape();
-        case LexState::identifierName:
-            return lex_identifierName();
-        case LexState::identifierNameEscape:
-            return lex_identifierNameEscape();
-        case LexState::sign:
-            return lex_sign();
-        case LexState::zero:
-            return lex_zero();
-        case LexState::decimalInteger:
-            return lex_decimalInteger();
-        case LexState::decimalPointLeading:
-            return lex_decimalPointLeading();
-        case LexState::decimalPoint:
-            return lex_decimalPoint();
-        case LexState::decimalFraction:
-            return lex_decimalFraction();
-        case LexState::decimalExponent:
-            return lex_decimalExponent();
-        case LexState::decimalExponentSign:
-            return lex_decimalExponentSign();
-        case LexState::decimalExponentInteger:
-            return lex_decimalExponentInteger();
-        case LexState::hexadecimal:
-            return lex_hexadecimal();
-        case LexState::hexadecimalInteger:
-            return lex_hexdecimalInteger();
-        case LexState::string:
-            return lex_string();
-        case LexState::start:
-            return lex_start();
-        case LexState::beforePropertyName:
-            return lex_beforePropertyName();
-        case LexState::afterPropertyName:
-            return lex_afterPropertyName();
-        case LexState::beforePropertyValue:
-            return lex_beforePropertyValue();
-        case LexState::afterPropertyValue:
-            return lex_afterPropertyValue();
-        case LexState::beforeArrayValue:
-            return lex_beforeArrayValue();
-        case LexState::afterArrayValue:
-            return lex_afterArrayValue();
-        case LexState::end:
-            return lex_end();
-        }
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_beforeArrayValue()
+{
+    if (_current_char == ']') {
+        return newToken(TokenType::punctuator, StringFromCharCode(read()));
+    }
+    _lex_state = LexState::value;
+    return std::nullopt;
+}
 
-        // throw
-        return std::nullopt;
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_afterArrayValue()
+{
+    switch (_current_char) {
+    case ',':
+    case ']':
+        return newToken(TokenType::punctuator, StringFromCharCode(read()));
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::parse_start()
-    {
-        if (_token->type == TokenType::eof) {
-            throw InvalidEOF("", exceptionDetailInfo());
-        }
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
+
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lex_end()
+{
+    throw InvalidChar(_current_char, exceptionDetailInfo());
+}
 
-        push();
+template <typename StringT>
+inline std::optional<typename parser5<StringT>::Token> parser5<StringT>::lexStates(LexState state)
+{
+    switch (state) {
+    case LexState::default_:
+        return lex_default();
+    case LexState::comment:
+        return lex_comment();
+    case LexState::multiLineComment:
+        return lex_multiLineComment();
+    case LexState::multiLineCommentAsterisk:
+        return lex_multiLineCommentAsterisk();
+    case LexState::singleLineComment:
+        return lex_singleLineComment();
+    case LexState::value:
+        return lex_value();
+    case LexState::identifierNameStartEscape:
+        return lex_identifierNameStartEscape();
+    case LexState::identifierName:
+        return lex_identifierName();
+    case LexState::identifierNameEscape:
+        return lex_identifierNameEscape();
+    case LexState::sign:
+        return lex_sign();
+    case LexState::zero:
+        return lex_zero();
+    case LexState::decimalInteger:
+        return lex_decimalInteger();
+    case LexState::decimalPointLeading:
+        return lex_decimalPointLeading();
+    case LexState::decimalPoint:
+        return lex_decimalPoint();
+    case LexState::decimalFraction:
+        return lex_decimalFraction();
+    case LexState::decimalExponent:
+        return lex_decimalExponent();
+    case LexState::decimalExponentSign:
+        return lex_decimalExponentSign();
+    case LexState::decimalExponentInteger:
+        return lex_decimalExponentInteger();
+    case LexState::hexadecimal:
+        return lex_hexadecimal();
+    case LexState::hexadecimalInteger:
+        return lex_hexdecimalInteger();
+    case LexState::string:
+        return lex_string();
+    case LexState::start:
+        return lex_start();
+    case LexState::beforePropertyName:
+        return lex_beforePropertyName();
+    case LexState::afterPropertyName:
+        return lex_afterPropertyName();
+    case LexState::beforePropertyValue:
+        return lex_beforePropertyValue();
+    case LexState::afterPropertyValue:
+        return lex_afterPropertyValue();
+    case LexState::beforeArrayValue:
+        return lex_beforeArrayValue();
+    case LexState::afterArrayValue:
+        return lex_afterArrayValue();
+    case LexState::end:
+        return lex_end();
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::parse_beforePropertyName()
-    {
-        switch (_token->type) {
-        case TokenType::identifier:
-        case TokenType::string:
-            _key = _token->_value.as_string();
-            _parse_state = ParseState::afterPropertyName;
-            break;
-        case TokenType::punctuator:
-            pop();
-            break;
-        case TokenType::eof:
-            throw InvalidEOF("", exceptionDetailInfo());
-            break;
-        default:
+    // throw
+    return std::nullopt;
+}
 
-            break;
-        }
+template <typename StringT>
+inline void parser5<StringT>::parse_start()
+{
+    if (_token->type == TokenType::eof) {
+        throw InvalidEOF("", exceptionDetailInfo());
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::parse_afterPropertyName()
-    {
-        if (_token->type == TokenType::eof) {
-            throw InvalidEOF("", exceptionDetailInfo());
-        }
+    push();
+}
 
-        _parse_state = ParseState::beforePropertyValue;
+template <typename StringT>
+inline void parser5<StringT>::parse_beforePropertyName()
+{
+    switch (_token->type) {
+    case TokenType::identifier:
+    case TokenType::string:
+        _key = _token->_value.as_string();
+        _parse_state = ParseState::afterPropertyName;
+        break;
+    case TokenType::punctuator:
+        pop();
+        break;
+    case TokenType::eof:
+        throw InvalidEOF("", exceptionDetailInfo());
+        break;
+    default:
+
+        break;
     }
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::parse_beforePropertyValue()
-    {
-        if (_token->type == TokenType::eof) {
-            throw InvalidEOF("", exceptionDetailInfo());
-        }
-        push();
+template <typename StringT>
+inline void parser5<StringT>::parse_afterPropertyName()
+{
+    if (_token->type == TokenType::eof) {
+        throw InvalidEOF("", exceptionDetailInfo());
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::parse_beforeArrayValue()
-    {
-        if (_token->type == TokenType::eof) {
-            throw InvalidEOF("", exceptionDetailInfo());
-        }
+    _parse_state = ParseState::beforePropertyValue;
+}
 
-        if (_token->type == TokenType::punctuator &&
-            _token->_value.as_string()[0] == ']') {
-            pop();
-            return;
-        }
+template <typename StringT>
+inline void parser5<StringT>::parse_beforePropertyValue()
+{
+    if (_token->type == TokenType::eof) {
+        throw InvalidEOF("", exceptionDetailInfo());
+    }
+    push();
+}
 
-        push();
+template <typename StringT>
+inline void parser5<StringT>::parse_beforeArrayValue()
+{
+    if (_token->type == TokenType::eof) {
+        throw InvalidEOF("", exceptionDetailInfo());
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::parse_afterPropertyValue()
-    {
-        if (_token->type == TokenType::eof) {
-            throw InvalidEOF("", exceptionDetailInfo());
-        }
+    if (_token->type == TokenType::punctuator && _token->_value.as_string()[0] == ']') {
+        pop();
+        return;
+    }
 
-        switch (_token->_value.as_string()[0]) {
-        case ',':
-            _parse_state = ParseState::beforePropertyName;
-            break;
-        case '}':
-            pop();
-            break;
-        }
+    push();
+}
+
+template <typename StringT>
+inline void parser5<StringT>::parse_afterPropertyValue()
+{
+    if (_token->type == TokenType::eof) {
+        throw InvalidEOF("", exceptionDetailInfo());
     }
 
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::parse_afterArrayValue()
-    {
-        if (_token->type == TokenType::eof) {
-            throw InvalidEOF("", exceptionDetailInfo());
-        }
-        switch (_token->_value.as_string()[0]) {
-        case ',':
-            _parse_state = ParseState::beforeArrayValue;
-            break;
-        case ']':
-            pop();
-            break;
-        }
+    switch (_token->_value.as_string()[0]) {
+    case ',':
+        _parse_state = ParseState::beforePropertyName;
+        break;
+    case '}':
+        pop();
+        break;
     }
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::parse_end() {}
+template <typename StringT>
+inline void parser5<StringT>::parse_afterArrayValue()
+{
+    if (_token->type == TokenType::eof) {
+        throw InvalidEOF("", exceptionDetailInfo());
+    }
+    switch (_token->_value.as_string()[0]) {
+    case ',':
+        _parse_state = ParseState::beforeArrayValue;
+        break;
+    case ']':
+        pop();
+        break;
+    }
+}
 
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::parseStates(ParseState state)
-    {
-        switch (state) {
-        case ParseState::start:
-            parse_start();
-            break;
-        case ParseState::beforePropertyName:
-            parse_beforePropertyName();
-            break;
-        case ParseState::afterPropertyName:
-            parse_afterPropertyName();
-            break;
-        case ParseState::beforePropertyValue:
-            parse_beforePropertyValue();
-            break;
-        case ParseState::beforeArrayValue:
-            parse_beforeArrayValue();
-            break;
-        case ParseState::afterPropertyValue:
-            parse_afterPropertyValue();
+template <typename StringT>
+inline void parser5<StringT>::parse_end()
+{}
+
+template <typename StringT>
+inline void parser5<StringT>::parseStates(ParseState state)
+{
+    switch (state) {
+    case ParseState::start:
+        parse_start();
+        break;
+    case ParseState::beforePropertyName:
+        parse_beforePropertyName();
+        break;
+    case ParseState::afterPropertyName:
+        parse_afterPropertyName();
+        break;
+    case ParseState::beforePropertyValue:
+        parse_beforePropertyValue();
+        break;
+    case ParseState::beforeArrayValue:
+        parse_beforeArrayValue();
+        break;
+    case ParseState::afterPropertyValue:
+        parse_afterPropertyValue();
+        break;
+    case ParseState::afterArrayValue:
+        parse_afterArrayValue();
+        break;
+    default:
+        break;
+    }
+}
+/* stack operation */
+template <typename StringT>
+inline void parser5<StringT>::push()
+{
+    value v;
+    value* pv = nullptr; // only for access
+    switch (_token->type) {
+    case TokenType::punctuator: {
+        switch (_token->_value.as_string()[0]) {
+        case '{':
+            v = object();
             break;
-        case ParseState::afterArrayValue:
-            parse_afterArrayValue();
+        case '[':
+            v = array();
             break;
         default:
             break;
         }
+    } break;
+    case TokenType::null:
+    case TokenType::boolean:
+    case TokenType::numeric:
+    case TokenType::string:
+        std::swap(v, _token->_value);
+        break;
+    default:
+        break;
     }
-    /* stack operation */
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::push()
-    {
-        value v;
-        value* pv = nullptr; // only for access
-        switch (_token->type) {
-        case TokenType::punctuator: {
-            switch (_token->_value.as_string()[0]) {
-            case '{':
-                v = object();
-                break;
-            case '[':
-                v = array();
-                break;
-            default:
-                break;
-            }
-        } break;
-        case TokenType::null:
-        case TokenType::boolean:
-        case TokenType::numeric:
-        case TokenType::string:
-            std::swap(v, _token->_value);
-            break;
-        default:
-            break;
-        }
 
-        if (!_root.has_value()) {
-            _root = std::move(v);
-            pv = &_root.value();
+    if (!_root.has_value()) {
+        _root = std::move(v);
+        pv = &_root.value();
+    }
+    else {
+        auto parent = _stack.top();
+        if (parent->is_array()) {
+            parent->as_array().emplace_back(std::move(v));
+            pv = &parent->as_array()[parent->as_array().size() - 1];
         }
         else {
-            auto parent = _stack.top();
-            if (parent->is_array()) {
-                parent->as_array().emplace_back(std::move(v));
-                pv = &parent->as_array()[parent->as_array().size() - 1];
-            }
-            else {
-                parent->as_object()[_key] = std::move(v);
-                pv = &parent->as_object()[_key];
-            }
+            parent->as_object()[_key] = std::move(v);
+            pv = &parent->as_object()[_key];
         }
+    }
 
-        if (pv->is_object() || pv->is_array()) {
-            _stack.emplace(pv);
-            if (pv->is_array()) {
-                _parse_state = ParseState::beforeArrayValue;
-            }
-            else {
-                _parse_state = ParseState::beforePropertyName;
-            }
+    if (pv->is_object() || pv->is_array()) {
+        _stack.emplace(pv);
+        if (pv->is_array()) {
+            _parse_state = ParseState::beforeArrayValue;
         }
         else {
-            if (_stack.empty()) {
-                _parse_state = ParseState::end;
-            }
-            else if (_stack.top()->is_array()) {
-                _parse_state = ParseState::afterArrayValue;
-            }
-            else {
-                _parse_state = ParseState::afterPropertyValue;
-            }
+            _parse_state = ParseState::beforePropertyName;
         }
     }
-
-    template<typename StringT>
-    MEOJSON_INLINE void parser5<StringT>::pop()
-    {
-        _stack.pop();
-
+    else {
         if (_stack.empty()) {
             _parse_state = ParseState::end;
         }
@@ -1718,4 +1691,21 @@ namespace json
             _parse_state = ParseState::afterPropertyValue;
         }
     }
+}
+
+template <typename StringT>
+inline void parser5<StringT>::pop()
+{
+    _stack.pop();
+
+    if (_stack.empty()) {
+        _parse_state = ParseState::end;
+    }
+    else if (_stack.top()->is_array()) {
+        _parse_state = ParseState::afterArrayValue;
+    }
+    else {
+        _parse_state = ParseState::afterPropertyValue;
+    }
+}
 } // namespace json