WL#4584 Internationalized number format

@ mysql-test/r/func_str.result
   Adding tests
@ mysql-test/t/func_str.test
   Adding tests
@ mysql-test/t/variables.test
   Fixing error number
@ sql/item_create.cc
   Allowing 2 and 3 arguments to format()
@ sql/item_strfunc.cc
   Adding new formatting code.
@ sql/item_strfunc.h
   Adding new contructors and "locale" member
@ sql/mysql_priv.h
   Adding number formatting members into MY_LOCALE
@ sql/sql_locale.cc
   Adding number formatting data into locale constants
@ sql/set_var.cc
   Using new error message
@ sql/share/errmgs.txt
   Adding new error message

1 files changed, 29 insertions, 4 deletions

diff --git a/sql/item_create.cc b/sql/item_create.cc
index 7991d9adf82..2f80d16b928 100644
--- a/sql/item_create.cc
+++ b/sql/item_create.cc
@@ -927,10 +927,10 @@ protected:
 };
 
 
-class Create_func_format : public Create_func_arg2
+class Create_func_format : public Create_native_func
 {
 public:
-  virtual Item *create(THD *thd, Item *arg1, Item *arg2);
+  virtual Item *create_native(THD *thd, LEX_STRING name, List<Item> *item_list);
 
   static Create_func_format s_singleton;
 
@@ -3352,9 +3352,34 @@ Create_func_floor::create(THD *thd, Item *arg1)
 Create_func_format Create_func_format::s_singleton;
 
 Item*
-Create_func_format::create(THD *thd, Item *arg1, Item *arg2)
+Create_func_format::create_native(THD *thd, LEX_STRING name,
+                                  List<Item> *item_list)
 {
-  return new (thd->mem_root) Item_func_format(arg1, arg2);
+  Item *func= NULL;
+  int arg_count= item_list ? item_list->elements : 0;
+
+  switch (arg_count) {
+  case 2:
+  {
+    Item *param_1= item_list->pop();
+    Item *param_2= item_list->pop();
+    func= new (thd->mem_root) Item_func_format(param_1, param_2);
+    break;
+  }
+  case 3:
+  {
+    Item *param_1= item_list->pop();
+    Item *param_2= item_list->pop();
+    Item *param_3= item_list->pop();
+    func= new (thd->mem_root) Item_func_format(param_1, param_2, param_3);
+    break;
+  }
+  default:
+    my_error(ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT, MYF(0), name.str);
+    break;
+  }
+
+  return func;
 }