diff --git a/source/libublsettings-config.c b/source/libublsettings-config.c
index 40129f3..0b216fe 100644
--- a/source/libublsettings-config.c
+++ b/source/libublsettings-config.c
@@ -1149,8 +1149,9 @@ config_str yon_config_get_save_parameters_by_list(int *size, config_str paramete
 }
 
 config_str yon_config_get_save_parameters_by_key(int *size,...){
-    va_list list;
     (*size)=0;
+    check_config{
+    va_list list;
     va_start(list,size);
     int removed_size;
     config_str removed = NULL;
@@ -1196,6 +1197,8 @@ config_str yon_config_get_save_parameters_by_key(int *size,...){
     }
     final = yon_char_parsed_merge(updated,updated_size,removed,removed_size,size);
     return final;
+    }
+    return NULL;
 }
 
 config_str yon_config_find_keys(char *target, int *size){
diff --git a/source/libublsettings-hash.c b/source/libublsettings-hash.c
new file mode 100644
index 0000000..68c2b5a
--- /dev/null
+++ b/source/libublsettings-hash.c
@@ -0,0 +1,88 @@
+#include "libublsettings.h"
+
+yon_hash *yon_hash_new(int size, unsigned int(*hash_func)(const char *)){
+    yon_hash *hash = malloc(sizeof(yon_hash));
+    memset(hash,0,sizeof(yon_hash));
+    hash->data = malloc(sizeof(yon_hash_element)*size);
+    hash->size = size;
+    hash->hash_func = hash_func;
+    return hash;
+}
+
+yon_hash_element *yon_hash_element_new(const char *key, const char *data){
+    yon_hash_element *element = malloc(sizeof(yon_hash_element));
+    memset(element,0,sizeof(yon_hash_element));
+    element->key = yon_char_new(key);
+    element->data = yon_char_new(data);
+    return element;
+}
+
+int yon_hash_insert(yon_hash *target, const char *key, void *data){
+    if (target&&target->hash_func&&!yon_char_is_empty(key)&&data){
+        unsigned int hash = target->hash_func(key)%target->size;
+        if (target->data[hash]){
+            yon_hash_element *element = yon_hash_element_new(key,data);
+            yon_hash_element *last = (yon_hash_element *)yon_dictionary_get_last((dictionary*)target->data[hash]);
+            last->next=(struct yon_hash_element*)element;
+            element->prev=(struct yon_hash_element*)last;
+            element->first=(struct yon_hash_element*)last->first;
+            return 1;
+        } else {
+            target->data = malloc(sizeof(yon_hash_element*));
+            target->data[0] = yon_hash_element_new(key,data);
+            return 1;
+        }
+    }
+    return 0;
+}
+
+int yon_hash_remove(yon_hash *target, const char *key){
+    if (target&&target->hash_func&&!yon_char_is_empty(key)){
+        unsigned int hash = target->hash_func(key)%target->size;
+        if (target->data[hash]){
+                dictionary *dict = yon_dictionary_get((dictionary**)&target->data[hash],(char*)key);
+                target->data[hash]=(yon_hash_element*)yon_dictionary_rip(dict);
+        }
+    }
+    return 0;
+}
+
+void *yon_hash_lookup(yon_hash *target, const char *key){
+    if (target&&target->size>0&&!yon_char_is_empty(key)){
+        unsigned int hash = target->hash_func(key)%target->size;
+        if (target->data[hash]){
+            dictionary *dict = yon_dictionary_get((dictionary**)&target->data[hash],(char*)key);
+            return yon_dictionary_get_data(dict,void*);
+        }
+    }
+    return NULL;
+}
+
+int yon_hash_contains(yon_hash *target, const char *key){
+    if (target&&!yon_char_is_empty(key)){
+        unsigned int hash = target->hash_func(key)%target->size;
+        if (target->data[hash]){
+            if (yon_dictionary_get((dictionary**)&target->data[hash],key)) return 1;
+        }
+    }
+    return 0;
+}
+
+int yon_hash_add(yon_hash *target,const char *key){
+    if (target&&target->size>0&&!yon_char_is_empty(key)){
+        unsigned int hash = target->hash_func(key)%target->size;
+        
+        if (target->data[hash]){
+            yon_hash_element *element = yon_hash_element_new(key,NULL);
+            yon_hash_element *last = (yon_hash_element *)yon_dictionary_get_last((dictionary*)target->data[hash]);
+            last->next=(struct yon_hash_element*)element;
+            element->prev=(struct yon_hash_element*)last;
+            element->first=(struct yon_hash_element*)last->first;
+            return 1;
+        } else {
+            target->data = malloc(sizeof(yon_hash_element*));
+            target->data[0] = yon_hash_element_new(key,NULL);
+            return 1;
+        }
+    }
+}
\ No newline at end of file
diff --git a/source/libublsettings-locale.c b/source/libublsettings-locale.c
new file mode 100644
index 0000000..edd5f93
--- /dev/null
+++ b/source/libublsettings-locale.c
@@ -0,0 +1,42 @@
+#include "libublsettings.h"
+
+#define locales_path "/usr/share/i18n/locales/"
+
+struct yon_locale {
+    char *code;
+    char *lang_ab;
+    char *territory;
+    char *language;
+    char *lang_name;
+    char *title;
+};
+
+struct yon_locale *yon_lang_new(){
+    struct yon_locale *cur_locale = malloc(sizeof(struct yon_locale));
+    memset(cur_locale,0,sizeof(struct yon_locale));
+    return cur_locale;
+}
+
+void yon_locale_set(struct  yon_locale *target,char *locale_name){
+    int size;
+    char *path = yon_char_unite(locales_path,locale_name,NULL);
+    config_str *locale_string = yon_file_open(path,&size);
+    target->code = yon_char_new(locale_name);
+    target->lang_ab = yon_char_parsed_check_exist_begins_with(locale_string,size,"lang_ab");
+    target->territory = yon_char_parsed_check_exist_begins_with(locale_string,size,"territory");
+    target->language = yon_char_parsed_check_exist_begins_with(locale_string,size,"language");
+    target->lang_name = yon_char_parsed_check_exist_begins_with(locale_string,size,"lang_name");
+    target->title = yon_char_parsed_check_exist_begins_with(locale_string,size,"title");
+    yon_char_parsed_free(locale_string,size);
+    free(path);
+}
+
+void yon_locale_init(){
+    int size;
+    config_str *locales_list = yon_dir_get_contents(locales_path,&size);
+    for (int i=0;i<size;i++){
+        if (!stcmp(locales_list,".")||!strcmp(locales_list,"..")) continue;
+        struct yon_locale *cur_locale = yon_lang_new();
+        yon_locale_set(cur_locale,locales_list[i]);
+    }
+}
\ No newline at end of file
diff --git a/source/libublsettings.h b/source/libublsettings.h
index f3033ff..8bb88cd 100644
--- a/source/libublsettings.h
+++ b/source/libublsettings.h
@@ -1098,4 +1098,21 @@ void yon_launch(char *command);
 
 // void *yon_malloc(int size, char *group_key);
 
+typedef struct {
+    dictionary_fields(yon_hash_element);
+} yon_hash_element;
+
+typedef struct {
+    yon_hash_element **data;
+    unsigned int size;
+    unsigned int(*hash_func)(const char *);
+} yon_hash;
+
+yon_hash *yon_hash_new(int size, unsigned int(*hash_func)(const char *));
+int yon_hash_insert(yon_hash *target, const char *key, void *data);
+int yon_hash_remove(yon_hash *target, const char *key);
+void *yon_hash_lookup(yon_hash *target, const char *key);
+int yon_hash_add(yon_hash *target,const char *key);
+int yon_hash_contains(yon_hash *target, const char *key);
+
 #endif
\ No newline at end of file