diff --git a/tests/test_acceptor.cpp b/tests/test_acceptor.cpp
index e29bedf..f12801a 100644
--- a/tests/test_acceptor.cpp
+++ b/tests/test_acceptor.cpp
@@ -408,7 +408,7 @@ BOOST_AUTO_TEST_CASE(test_array)
     {
         const std::string arr1("[1,\n2,#comment\n3]");
         BOOST_CHECK(is_valid::invoke(arr1.cbegin()) == arr1.cend());
-        const std::string arr2("[1,\n2,#comment\r\n3]");
+        const std::string arr2("[#c\n1,\n2,#comment\r\n3]");
         BOOST_CHECK(is_valid::invoke(arr2.cbegin()) == arr2.cend());
     }
 }
@@ -446,7 +446,36 @@ BOOST_AUTO_TEST_CASE(test_inline_table)
     }
 }
 
+BOOST_AUTO_TEST_CASE(test_table_definition)
+{
+    using is_valid = toml::is_table_definition<char>;
+    {
+        const std::string simple("[hoge]");
+        BOOST_CHECK(is_valid::invoke(simple.cbegin()) == simple.cend());
+        const std::string dotted("[hoge.piyo.fuga]");
+        BOOST_CHECK(is_valid::invoke(dotted.cbegin()) == dotted.cend());
+        const std::string spaced_dotted("[hoge . piyo .fuga. foo]");
+        BOOST_CHECK(is_valid::invoke(spaced_dotted.cbegin()) == spaced_dotted.cend());
+        const std::string quoted("[\"hoge\"]");
+        BOOST_CHECK(is_valid::invoke(quoted.cbegin()) == quoted.cend());
+        const std::string quoted_dot("[\"hoge\".'piyo'.fuga]");
+        BOOST_CHECK(is_valid::invoke(quoted_dot.cbegin()) == quoted_dot.cend());
+    }
+}
 
-
-
-
+BOOST_AUTO_TEST_CASE(test_array_of_table_definition)
+{
+    using is_valid = toml::is_array_of_table_definition<char>;
+    {
+        const std::string simple("[[hoge]]");
+        BOOST_CHECK(is_valid::invoke(simple.cbegin()) == simple.cend());
+        const std::string dotted("[[hoge.piyo.fuga]]");
+        BOOST_CHECK(is_valid::invoke(dotted.cbegin()) == dotted.cend());
+        const std::string spaced_dotted("[[hoge . piyo .fuga. foo]]");
+        BOOST_CHECK(is_valid::invoke(spaced_dotted.cbegin()) == spaced_dotted.cend());
+        const std::string quoted("[[\"hoge\"]]");
+        BOOST_CHECK(is_valid::invoke(quoted.cbegin()) == quoted.cend());
+        const std::string quoted_dot("[[\"hoge\".'piyo'.fuga]]");
+        BOOST_CHECK(is_valid::invoke(quoted_dot.cbegin()) == quoted_dot.cend());
+    }
+}
diff --git a/toml/acceptor.hpp b/toml/acceptor.hpp
index 3c2f0e2..d19a04b 100644
--- a/toml/acceptor.hpp
+++ b/toml/acceptor.hpp
@@ -255,6 +255,10 @@ using is_hex = is_one_of<is_number<charT>, is_in_range<charT, 'a', 'f'>,
                          is_in_range<charT, 'A', 'F'>>;
 template<typename charT>
 using is_whitespace = is_one_of<is_space<charT>, is_tab<charT>>;
+template<typename charT>
+using is_any_num_of_ws =
+    is_ignorable<is_repeat_of<is_whitespace<charT>, repeat_infinite()>>;
+
 template<typename charT>
 using is_newline    = is_one_of<is_charactor<charT, '\n'>,
     is_chain_of<is_charactor<charT, '\r'>, is_charactor<charT, '\n'>>>;
@@ -524,11 +528,6 @@ using is_key =
         is_literal_inline_string<charT>
     >;
 
-template<typename charT>
-using is_skippable_in_inline_table =
-    is_repeat_of<is_whitespace<charT>, repeat_infinite()>;
-
-
 template<typename charT>
 struct is_array
 {
@@ -583,13 +582,13 @@ struct is_inline_table
         typedef is_one_of<is_fundamental_type<charT>,
                           is_array<charT>, is_inline_table<charT>> is_component;
         typedef is_chain_of<
-            is_ignorable<is_skippable_in_inline_table<charT>>,
+            is_any_num_of_ws<charT>,
             is_key<charT>,
-            is_ignorable<is_skippable_in_inline_table<charT>>,
+            is_any_num_of_ws<charT>,
             is_charactor<charT, '='>,
-            is_ignorable<is_skippable_in_inline_table<charT>>,
+            is_any_num_of_ws<charT>,
             is_component,
-            is_ignorable<is_skippable_in_inline_table<charT>>
+            is_any_num_of_ws<charT>
         > is_inline_key_value_pair;
 
         typedef is_chain_of<
@@ -597,9 +596,9 @@ struct is_inline_table
             is_ignorable<
                 is_repeat_of<
                     is_chain_of<
-                        is_ignorable<is_skippable_in_inline_table<charT>>,
+                        is_any_num_of_ws<charT>,
                         is_inline_key_value_pair,
-                        is_ignorable<is_skippable_in_inline_table<charT>>,
+                        is_any_num_of_ws<charT>,
                         is_charactor<charT, ','>
                     >,
                     repeat_infinite()
@@ -607,25 +606,79 @@ struct is_inline_table
             >,
             is_ignorable<
                     is_chain_of<
-                        is_ignorable<is_skippable_in_inline_table<charT>>,
+                        is_any_num_of_ws<charT>,
                         is_inline_key_value_pair,
-                        is_ignorable<is_skippable_in_inline_table<charT>>,
+                        is_any_num_of_ws<charT>,
                         is_ignorable<is_charactor<charT, ','>>
                     >
                 >,
-            is_ignorable<is_skippable_in_inline_table<charT>>,
+            is_any_num_of_ws<charT>,
             is_charactor<charT, '}'>
             > entity;
         return entity::invoke(iter);
     }
 };
 
+template<typename charT>
+using is_value =
+    is_one_of<is_fundamental_type<charT>, is_array<charT>, is_inline_table<charT>>;
 
+// []
+template<typename charT>
+using is_table_definition =
+    is_chain_of<
+        is_any_num_of_ws<charT>,
+        is_charactor<charT, '['>,
+        is_any_num_of_ws<charT>,
+        is_ignorable<
+            is_repeat_of<
+                is_chain_of<
+                    is_any_num_of_ws<charT>,
+                    is_key<charT>,
+                    is_any_num_of_ws<charT>,
+                    is_charactor<charT, '.'>,
+                    is_any_num_of_ws<charT>
+                >,
+            repeat_infinite()>
+            >,
+        is_key<charT>,
+        is_charactor<charT, ']'>
+    >;
 
+template<typename charT>
+using is_array_of_table_definition =
+    is_chain_of<
+        is_any_num_of_ws<charT>,
+        is_repeat_of<is_charactor<charT, '['>, 2>,
+        is_ignorable<
+            is_repeat_of<
+                is_chain_of<
+                    is_any_num_of_ws<charT>,
+                    is_key<charT>,
+                    is_any_num_of_ws<charT>,
+                    is_charactor<charT, '.'>,
+                    is_any_num_of_ws<charT>
+                >,
+            repeat_infinite()>
+            >,
+        is_key<charT>,
+        is_repeat_of<is_charactor<charT, ']'>, 2>
+    >;
 
-
-
-
+template<typename charT>
+using is_key_value_pair =
+    is_chain_of<
+        is_any_num_of_ws<charT>,
+        is_key<charT>,
+        is_any_num_of_ws<charT>,
+        is_charactor<charT, '='>,
+        is_any_num_of_ws<charT>,
+        is_value<charT>,
+        is_any_num_of_ws<charT>,
+        is_ignorable<is_comment<charT>>,
+        is_any_num_of_ws<charT>,
+        is_newline<charT>
+    >;
 
 }//toml
 #endif// TOML11_ACCEPTOR