diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
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+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<http://www.gnu.org/licenses/>.
diff --git a/Lang.hs b/Lang.hs
new file mode 100644
--- /dev/null
+++ b/Lang.hs
@@ -0,0 +1,64 @@
+--    Copyright (C) 2018  Zaoqi
+
+--    This program is free software: you can redistribute it and/or modify
+--    it under the terms of the GNU Affero General Public License as published
+--    by the Free Software Foundation, either version 3 of the License, or
+--    (at your option) any later version.
+
+--    This program is distributed in the hope that it will be useful,
+--    but WITHOUT ANY WARRANTY; without even the implied warranty of
+--    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--    GNU Affero General Public License for more details.
+
+--    You should have received a copy of the GNU Affero General Public License
+--    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+module Lang(main) where
+import Lang.Lang
+import Lang.Read
+import Lang.Value
+import Lang.Cast
+import Lang.Show
+import Mapping
+
+type St = (Mapping M名物 W物, W物)
+initst :: St
+initst = (空境, 空)
+
+parseError :: IO ()
+parseError = putStrLn "錯誤： 讀取錯誤"
+
+loop :: St -> IO St
+loop _s@(e, it) = do
+    putStr "語> "
+    l <- getLine
+    case l of
+        '!' : cmd -> runCmd cmd _s
+        _ -> case 讀 l of
+            Just (x, "") -> do
+                let it = 算 x e
+                putStrLn (示 it)
+                return (e, it)
+            _ -> do
+                parseError
+                return _s
+
+runCmd :: String -> St -> IO St
+runCmd ('名':' ':名)  _s@(e, it) =
+    let
+      m' = do
+        (x, "") <- 讀 名
+        物To名 x
+    in case m' of
+        Just 名 -> return (mappingSet e 名 it, it)
+        Nothing -> do
+            parseError
+            return _s
+
+main :: IO ()
+main = f initst
+  where
+    f :: St -> IO ()
+    f s = do
+        s <- loop s
+        f s
+
diff --git a/Lang/Lang.hs b/Lang/Lang.hs
new file mode 100644
--- /dev/null
+++ b/Lang/Lang.hs
@@ -0,0 +1,270 @@
+--    Copyright (C) 2018  Zaoqi
+
+--    This program is free software: you can redistribute it and/or modify
+--    it under the terms of the GNU Affero General Public License as published
+--    by the Free Software Foundation, either version 3 of the License, or
+--    (at your option) any later version.
+
+--    This program is distributed in the hope that it will be useful,
+--    but WITHOUT ANY WARRANTY; without even the implied warranty of
+--    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--    GNU Affero General Public License for more details.
+
+--    You should have received a copy of the GNU Affero General Public License
+--    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+module Lang.Lang(算, 空境) where
+import Lang.Value
+import Lang.Cast
+import Lang.Common
+import Mapping
+
+infixr 0 ?
+W誤 _ ? _ = Nothing
+_ ? x = x
+
+mkfM :: List String -> (List W物 -> Maybe W物) -> (List W物 -> W物)
+mkfM n f = \xs -> case f xs of
+    Just x -> x
+    Nothing -> 界誤 n xs
+
+class C建參 x where 建參 :: Nat -> x
+instance C建參 X形 where 建參 x = 建列 (map (\x -> 建名[show x]) [x,x-1..1])
+instance C建參 W物 where 建參 x = 建列 (map (\x -> 建名[show x]) [x,x-1..1])
+
+f :: List String -> Nat -> (List W物 -> W物) -> (M名物, W物)
+f n c x = (建名 n, 界機 (MkJJ界機物 n c x (建參 c) (首尾 (建界名 n) (建參 c))))
+
+fM :: List String -> Nat -> (List W物 -> Maybe W物) -> (M名物, W物)
+fM n c x = f n c (mkfM n x)
+
+m :: List String -> Nat -> (Mapping M名物 W物 -> List W物 -> Maybe W物) -> (M名物, W物)
+m n c x = (建名 n, 引機 (界機 (MkJJ界機物 n ce f (建參 ce) (建列[建界名["算"], 未算, 建名[show ce]]))))
+  where
+    f :: (List W物 -> W物)
+    f _a@(e : xs) = case (物To境 e >>= \e -> x e xs) of
+        Just x -> x
+        Nothing -> 界誤 n _a
+    
+    ce :: Nat
+    ce = c+1
+    
+    未算 :: W物
+    未算 = 建首尾 (引 用式名) (建首尾 (引 (建界名 n)) (連參 c))
+    
+    連參 :: Nat -> W物
+    連參 1 = 建首尾 (建名["1"]) (建界名["空"])
+    連參 n = 建首尾 (建名[show n]) (連參 (n-1))
+    
+    建首尾 :: W物 -> W物 -> W物
+    建首尾 a d = 建列[建界名["首尾"], a, d]
+    
+    引 :: W物 -> W物
+    引 x = 建式 (建界名["引"]) [x]
+
+空境 :: Mapping M名物 W物
+空境 = (listToMapping [
+    (fM["等","?"]2(\[x,y] -> x?y? Just (建陰陽 (x == y)))),
+    (fM["首尾","?"]1(\[x] -> x? case x of
+        W首尾 _ _ -> Just 陽
+        _ -> Just 陰)),
+    (f["首尾"]2(\[x,y] -> 首尾 x y)),
+    (fM["首尾","首"]1(\[x] -> x? case x of
+        W首尾 x _ -> Just x
+        _ -> Nothing)),
+    (fM["首尾","尾"]1(\[x] -> x? case x of
+        W首尾 _ x -> Just x
+        _ -> Nothing)),
+    (fM["空","?"]1(\[x] -> x? case x of
+        W空 -> Just 陽
+        _ -> Just 陰)),
+    (建名["列"], 機 MappingNil (建名 ["1"]) (建名 ["1"])),
+    (fM["字","?"]1(\[x] -> x? case x of
+        W字 _ -> Just 陽
+        _ -> Just 陰)),
+    (fM["名","?"]1(\[x] -> x? case x of
+        W名 _ -> Just 陽
+        _ -> Just 陰)),
+    (fM["列","→","名"]1(\[x] -> x? 名 <$> 物To列 x)),
+    (fM["名","→","列"]1(\[x] -> x? case x of
+        W名 x -> Just (列To物 x)
+        _ -> Nothing)),
+    (fM["映","?"]1(\[x] -> x? case x of
+        W映 _ -> Just 陽
+        _ -> Just 陰)),
+    (建名["映","空"], W映 (Y境 MappingNil)),
+    (fM["映","改"]3(\[h, k, v] -> case h of
+        W映 h -> Just $ case h of
+            Y物映 h -> W映 (Y物映 (mappingSet h k v))
+            Y境 h -> W映 $ case k of
+                W名 k -> Y境 (mappingSet h (名 k) v)
+                _ -> Y物映 (mappingSet (境ToMapping h) k v)
+        _ -> Nothing)),
+    (fM["映","取"]3(\[h, k] -> case h of
+        W映 h -> case h of
+            Y物映 h -> mappingRef h k
+            Y境 h -> case k of
+                W名 k -> mappingRef h (名 k)
+                _ -> Nothing
+        _ -> Nothing)),
+    (fM["映","含","?"]2(\[h, k] -> case h of
+        W映 h -> Just $ case h of
+            Y物映 h -> 建陰陽 (mappingHas h k)
+            Y境 h -> case k of
+                W名 k -> 建陰陽 (mappingHas h (名 k))
+                _ -> 陰
+        _ -> Nothing)),
+    (fM["映","删"]2(\[hw, k] -> case hw of
+        W映 h -> case h of
+            Y物映 h -> case mappingRemove h k of
+                Just x -> Just $ W映 (Y物映 x)
+                Nothing -> Nothing
+            Y境 h -> case k of
+                W名 kl -> case mappingRemove h (名 kl) of
+                    Just x -> Just $ W映 (Y境 x)
+                    Nothing -> Nothing
+                _ -> Nothing
+        _ -> Nothing)),
+    (fM["映","→","列"]1(\[h] -> h? case h of
+        W映 h -> Just $ case h of
+            Y物映 h -> 建列 (map (\(a, d) -> 首尾 a d) (mappingToList h))
+            Y境 h -> 建列 (map (\(M名 a, d) -> 首尾 (名 a) d) (mappingToList h))
+        _ -> Nothing)),
+    (fM["機","?"]1(\[x] -> x? case x of
+        W機 _ _ _ -> Just 陽
+        W界機 _ -> Just 陽
+        _ -> Just 陰)),
+    (fM["機"]2(\[x, y] -> x? fmap (\x -> 機 MappingNil x y) (物To形 x))),
+    (fM["用"]2(\[f, xs] -> f?xs? 用 <$> 物To機物 f <*> 物ToList xs)),
+    (fM["機","形"]1(\[x] -> x? case x of
+        W機 _ x _ -> Just (形To物 x)
+        W界機 (MkJJ界機物 _ _ _ x _) -> Just (形To物 x)
+        _ -> Nothing)),
+    (fM["機","物"]1(\[x] -> 機Get物 x)),
+    (m["入"]2(\e [x, w] -> 物To形 x >>= \x -> Just (機 e x w))),
+    (建名["陰"], 陰),
+    (建名["陽"], 陽),
+    (fM["若"]3(\[b, x, y] -> b? case b of
+        W陽 -> Just x
+        _ -> Just y)),
+    (fM["引機","?"]1(\[x] -> x? case x of
+        W引機 _ -> Just 陽
+        _ -> Just 陰)),
+    (fM["引機"]1(\[x] -> x? W引機 <$> 物To機物 x)),
+    (fM["引機","反"]1(\[x] -> x? case x of
+        W引機 x -> Just (機物To物 x)
+        _ -> Nothing)),
+    (fM["譯機","?"]1(\[x] -> x? case x of
+        W譯機 _ -> Just 陽
+        _ -> Just 陰)),
+    (fM["譯機"]1(\[x] -> x? W譯機 <$> 物To機物 x)),
+    (fM["譯機","反"]1(\[x] -> x? case x of
+        W譯機 x -> Just (機物To物 x)
+        _ -> Nothing)),
+    (建名["引"], 引機 (機 MappingNil (建列[建名 ["e"], 建名["x"]]) (建名["x"]))),
+    (f["誤","？"]1(\[x] -> case x of
+        W誤 _ -> 陽
+        _ -> 陰)),
+    (f["誤"]1(\[x] -> W誤 x)),
+    (fM["誤","反"]1(\[x] -> case x of
+        W誤 x -> Just x
+        _ -> Nothing)),
+    (fM["算"]2(\[x,e] -> x?e? 算 x <$> 物To境 e)),
+    (m["境","名今"]2(\e [n, x] -> 物To名 n >>= \n -> return (算 x (mappingSet e n (境To物 e))))),
+    (m["境","改"]2(\_ [e, x] -> 算 x <$> 物To境 e)),
+    (建名["境","空"], 境To物 空境),
+    (m["命名"]2(\e [n, body] -> do
+        n <- 物ToList n
+        n <- mapM (\x -> do { W首尾 (W名 m) (W首尾 v W空) <- return x ; return (名 m, v) }) n
+        return $
+            let
+              e' = mappingAppendList e n'
+              n' = map (\(m, x) -> (m, 算 x e')) n
+            in 算 body e')),
+    (fM["構","?"]1(\[x] -> x? case x of
+        W構 _ _ -> Just 陽
+        _ -> Just 陰)),
+    (fM["構"]2(\[n,xs] -> 物To列 xs >>= \xs -> case n of
+        W名 x -> Just (構 (名 x) xs)
+        _ -> Nothing)),
+    (fM["構","名"]1(\[x] -> x? case x of
+        W構 (M名 x) _ -> Just (名 x)
+        _ -> Nothing)),
+    (fM["構","列"]1(\[x] -> x? case x of
+        W構 _ xs -> Just (列To物 xs)
+        _ -> Nothing)),
+    (fM["取","未算"]1(\[x] -> x? case x of
+        W名 x -> error "WIP"
+        _ -> Nothing)),
+    (建名["取"], W機 MappingNil (建列[建名["x"]]) (建列[建界名["算"], 建列[建界名["取","未算"], 建名["x"]], 建界名["境","空"]])),
+    (fM["界","含","?"]1(\[x] -> x? case x of
+        W名 x -> case x of
+            _ -> Just 陰
+        _ -> Nothing)),
+    (fM["界","取"]1(\[x] -> Nothing))
+    ])
+
+機Get物 :: W物 -> Maybe W物
+機Get物 (W機 e x w) = Just $ 機mk物 (mappingToList e) (mkSet x) w
+  where
+    mkSet :: X形 -> (M名物 -> Bool)
+    mkSet x = let xs = toList x in \v -> memQ xs v
+      where
+        toList (X名 x) = [名 x]
+        toList (X首尾 m xs) = m : toList xs
+        toList X空 = []
+        
+        memQ [] _ = False
+        memQ (x:xs) y = x==y || memQ xs y
+    
+    機mk物 :: List (M名物, W物) -> (M名物 -> Bool) -> W物 -> W物
+    機mk物 xs q b = mkLet (filter (\(m, _) -> not (q m)) xs) b
+      where
+        mkLet :: List (M名物, W物) -> W物 -> W物
+        mkLet xs b = 建列 ((mkF (map (\(m, x) -> m) xs) b) : (map (\(m, x) -> x) xs))
+          where
+            mkF :: List M名物 -> W物 -> W物
+            mkF xs y = 建式 (建界名["入"]) [建列 (map (\(M名 x) -> 名 x) xs), y]
+機Get物 (W界機 (MkJJ界機物 _ _ _ _ x)) = Just x
+機Get物 _ = Nothing
+
+算 :: W物 -> Mapping M名物 W物 -> W物
+算 _x@(W名 m) e = case mappingRef e (名 m) of
+    Just x -> x
+    Nothing -> 界誤 ["算"] [_x,境To物 e]
+算 _x@(W首尾 y x) e | y == 用式名 =
+    let
+      r = do
+        W首尾 f xs <- return x
+        xs' <- 物ToList xs
+        return (f, xs')
+    in case r of
+        Just (f, xs) -> case 算 f e of
+            W引機 f -> 用 f ((境To物 e) : xs)
+            W譯機 f -> 算 (用 f xs) e
+            _ -> 界誤 ["算"] [_x,境To物 e]
+        Nothing -> 界誤 ["算"] [_x,境To物 e]
+算 _x@(W首尾 y x) e | y == 用界名 = case x of
+    W首尾 (W名 m) W空 -> case mappingRef e (名 m) of
+        Just x -> x
+        Nothing -> 界誤 ["算"] [_x,境To物 e]
+    _ -> 界誤 ["算"] [_x,境To物 e]
+算 _x@(W首尾 f as) e = case 物ToList as of
+    Just xs -> let (xs', f') = (map (\x->算 x e) xs, 算 f e) in case 物To機物 f' of
+        Just f'' -> 用 f'' xs'
+        Nothing -> 界誤 ["用"] [f', 建列 xs']
+    Nothing -> 界誤 ["算"] [_x,境To物 e]
+算 x@(W誤 _) e = 界誤 ["算"] [x,境To物 e]
+算 x e = x
+
+match :: Mapping M名物 W物 -> X形 -> List W物 -> Maybe (Mapping M名物 W物)
+match m (X名 x) v = Just (mappingSet m (名 x) (建列 v))
+match m X空 [] = Just m
+match m (X首尾 (M名 x) xs) (v:vs) = match (mappingSet m (名 x) v) xs vs
+match _ _ _ = Nothing
+
+用 :: J機物 -> List W物 -> W物
+用 (J機 e a x) ws = case match e a ws of
+    Just e -> 算 x e
+    Nothing -> 界誤 ["用"] [(機 e a x),建列 ws]
+用 (J界機 a_@(MkJJ界機物 _ c f _ _)) ws = if length ws == c then f ws else 界誤 ["用"] [界機 a_,建列 ws]
+
diff --git a/Lang/Read.hs b/Lang/Read.hs
new file mode 100644
--- /dev/null
+++ b/Lang/Read.hs
@@ -0,0 +1,120 @@
+--    Copyright (C) 2018  Zaoqi
+
+--    This program is free software: you can redistribute it and/or modify
+--    it under the terms of the GNU Affero General Public License as published
+--    by the Free Software Foundation, either version 3 of the License, or
+--    (at your option) any later version.
+
+--    This program is distributed in the hope that it will be useful,
+--    but WITHOUT ANY WARRANTY; without even the implied warranty of
+--    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--    GNU Affero General Public License for more details.
+
+--    You should have received a copy of the GNU Affero General Public License
+--    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+module Lang.Read(讀) where
+import Lang.Value
+import Lang.Common
+import Lang.Cast
+import Mapping
+
+type Env = Mapping String W物
+
+讀 :: String -> Maybe (W物, String)
+讀 xs = mapM 預 xs >>= r MappingNil
+
+預 '\t'=Just ' '
+預 '\r'=Just ' '
+預 '\n'=Just ' '
+預 '（'=Just '('
+預 '）'=Just ')'
+預 '：'=Just ':'
+預 '；'=Just ';'
+預 '\''=Nothing
+預 '`'=Nothing
+預 '"'=Nothing
+預 '！'=Just '!'
+預 '？'=Just '?'
+預 x=Just x
+
+infixl 1 >?=
+x >?= f = fmap f x
+
+type RMap = Mapping String W物
+type Reader x = RMap -> String -> Maybe (x, String)
+
+r完 :: RMap -> String -> W物
+r完 m xs = case r m xs of Just (x, "") -> x
+
+-- 計劃建立一個新的Monad
+
+r :: Reader W物
+r m ('名':'(':xs) = r物列 m xs >?= \(xs, rs) -> (名 (建列 xs), rs)
+r m ('(':xs) = r首尾 m xs
+r m ('字':x:xs) = pure (字 x, xs)
+r m ('周':xs) = r周 m xs
+r m ('空':xs) = pure (空, xs)
+r m ('陰':xs) = pure (陰, xs)
+r m ('陽':xs) = pure (陽, xs)
+r m ('映':xs) = r映 m xs
+r m ('機':rs) = r機 (\x b -> 機 MappingNil x b) m rs
+r m ('引':'機':rs) = r機 (\x b -> 引機 (機 MappingNil x b)) m rs
+r m ('譯':'機':rs) = r機 (\x b -> 譯機 (機 MappingNil x b)) m rs
+r m ('誤':'(':rs) = do
+    (x, ')':rs) <- r m rs
+    return (誤 x, rs)
+r m ('構':'(':'(':rs) = do
+    (ns, rs) <- r物列 m rs
+    let n = 名 (建列 ns)
+    (_, '(':rs) <- r空 m rs
+    (x, ')':rs) <- r物列 m rs
+    return (構 n (建列 x), rs)
+r m (' ':rs) = r m rs
+r _ _ = Nothing
+
+r映 :: Reader W物
+r映 = error "WIP"
+
+r周 :: Reader W物
+r周 m xs = let (b, as, bs) = r甲 xs in
+    if b
+      then
+        let
+          m' = mappingSet m as x'
+          x = do
+              (x, ')':rs) <- r m' bs
+              return (x, rs)
+          x' = case x of Just (v, _) -> v -- 有Lazy，所以不會有error
+        in x
+      else (,) <$> mappingRef m as <*> pure bs
+  where
+    r甲 :: String -> (Bool, String, String)
+    r甲 ('(':xs) = (True, "", xs)
+    r甲 xs@(')':_) = (False, "", xs)
+    r甲 xs@(' ':_) = (False, "", xs)
+    r甲 (x:xs) = let (b, as, bs) = r甲 xs in (b, x:as, bs)
+    r甲 "" = (False, "", "")
+
+r式 :: Reader String
+r式 m ('名':'(':xs) = error "WIP"
+
+r機 :: (X形 -> W物 -> a) -> Reader a
+r機 re m rs = do
+    '(':rs <- return rs
+    (x, rs) <- r m rs
+    x <- 物To形 x
+    (b, ')':rs) <- r m rs
+    return (re x b, rs)
+
+r空 :: Reader String
+r空 m xs = pure $ rs "" xs
+  where
+    rs :: String -> String -> (String, String)
+    rs x "" = ("", x)
+    rs a (' ':xs) = rs (' ':a) xs
+
+r物列 :: Reader (List W物)
+r物列 = error "WIP"
+
+r首尾 :: Reader W物
+r首尾 = error "WIP"
diff --git a/Lang/Show.hs b/Lang/Show.hs
new file mode 100644
--- /dev/null
+++ b/Lang/Show.hs
@@ -0,0 +1,19 @@
+--    Copyright (C) 2018  Zaoqi
+
+--    This program is free software: you can redistribute it and/or modify
+--    it under the terms of the GNU Affero General Public License as published
+--    by the Free Software Foundation, either version 3 of the License, or
+--    (at your option) any later version.
+
+--    This program is distributed in the hope that it will be useful,
+--    but WITHOUT ANY WARRANTY; without even the implied warranty of
+--    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--    GNU Affero General Public License for more details.
+
+--    You should have received a copy of the GNU Affero General Public License
+--    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+module Lang.Show where
+import Lang.Value
+
+示 :: W物 -> String
+示 = show
diff --git a/Lang/Value.hs b/Lang/Value.hs
new file mode 100644
--- /dev/null
+++ b/Lang/Value.hs
@@ -0,0 +1,77 @@
+--    Copyright (C) 2018  Zaoqi
+
+--    This program is free software: you can redistribute it and/or modify
+--    it under the terms of the GNU Affero General Public License as published
+--    by the Free Software Foundation, either version 3 of the License, or
+--    (at your option) any later version.
+
+--    This program is distributed in the hope that it will be useful,
+--    but WITHOUT ANY WARRANTY; without even the implied warranty of
+--    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--    GNU Affero General Public License for more details.
+
+--    You should have received a copy of the GNU Affero General Public License
+--    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+{-# LANGUAGE MultiParamTypeClasses, FunctionalDependencies #-}
+module Lang.Value where
+import Mapping
+import Lang.Common
+-- 模擬subtype
+-- Shen的Type System更好，但Shen不支持中國字
+-- W數用来优化
+data W物 = W首尾 W物 W物|W空|W字 Char|W數 Rational|W名 L列|
+           W映 Y映|W機 (Mapping M名物 W物) X形 W物|W界機 JJ界機物|
+           W陰|W陽|W引機 J機物|W譯機 J機物|W誤 W物|W構 M名物 L列 deriving (Eq, Ord, Show)
+data Y映 = Y物映 (Mapping W物 W物)|Y境 (Mapping M名物 W物) deriving Show
+instance Eq Y映 where
+    Y境 x == Y境 y = x == y
+    Y物映 x == Y物映 y = x == y
+    Y境 x == Y物映 y = 境ToMapping x == y
+    Y物映 x == Y境 y = x == 境ToMapping y
+instance Ord Y映 where
+    Y境 x `compare` Y境 y = x `compare` y
+    Y物映 x `compare` Y物映 y = x `compare` y
+    Y境 x `compare` Y物映 y = 境ToMapping x `compare` y
+    Y物映 x `compare` Y境 y = x `compare` 境ToMapping y
+data L列 = L首尾 W物 L列|L空 deriving (Eq, Ord, Show)
+data M名物 = M名 L列 deriving (Eq, Ord, Show)
+data X形 = X首尾 M名物 X形|X空|X名 L列 deriving (Eq, Ord, Show)
+data J機物 = J機 (Mapping M名物 W物) X形 W物|J界機 JJ界機物 deriving (Eq, Ord, Show)
+data JJ界機物 = MkJJ界機物 (List String) Nat (List W物 -> W物) X形 W物
+instance Eq JJ界機物 where
+    MkJJ界機物 x _ _ _ _ == MkJJ界機物 y _ _ _ _ = x == y
+instance Ord JJ界機物 where
+    compare (MkJJ界機物 x _ _ _ _) (MkJJ界機物 y _ _ _ _) = compare x y
+instance Show JJ界機物 where
+    show (MkJJ界機物 x y _ z a) = "MkJJ界機物 " ++ showsPrec 11 x "" ++ " " ++ showsPrec 11 y "" ++ " _ " ++ showsPrec 11 z "" ++ " " ++ showsPrec 11 a ""
+
+class C首尾 x y z | y -> x z, z -> x y where 首尾 :: x -> y -> z
+class C空 x where 空 :: x
+instance C首尾 W物 W物 W物 where 首尾 = W首尾
+instance C空 W物 where 空 = W空
+instance C首尾 W物 L列 L列 where 首尾 = L首尾
+instance C空 L列 where 空 = L空
+instance C首尾 M名物 X形 X形 where 首尾 = X首尾
+instance C空 X形 where 空 = X空
+
+class C名 x where 名 :: L列 -> x
+instance C名 W物 where 名 = W名
+instance C名 M名物 where 名 = M名
+instance C名 X形 where 名 = X名
+
+class C機 x where 機 :: Mapping M名物 W物 -> X形 -> W物 -> x
+instance C機 W物 where 機 = W機
+instance C機 J機物 where 機 = J機
+class C界機 x where 界機 :: JJ界機物 -> x
+instance C界機 W物 where 界機 = W界機
+instance C界機 J機物 where 界機 = J界機
+字 = W字
+陰 = W陰
+陽 = W陽
+引機 = W引機
+譯機 = W譯機
+誤 = W誤
+構 = W構
+
+境ToMapping :: Mapping M名物 W物 -> Mapping W物 W物
+境ToMapping x = listToMapping (map (\(M名 k, v) -> (名 k, v)) (mappingToList x))
diff --git a/README.md b/README.md
new file mode 100644
--- /dev/null
+++ b/README.md
@@ -0,0 +1,95 @@
+語
+==
+Copyright (C) 2014-2018  Zaoqi <zaomir@outlook.com>
+
+這只是核心，不是直接用來solve problems · make languages的。
+
+因爲
++ Idris的Lazy有Bug
++ Shen不支持中國字
++ Agda std-lib缺少一些東西
++ Scheme，Racket不能很好的編譯到ECMAScript
++ Clojure-JVM不支持Tail Call Optimization
++ F#是Microsoft的
+
+所以只能用GHC-Haskell或Ocaml或Coq。
+
+因爲杭十五中差等原因，我使用傳統寫法。我聽說臺灣不使用這種寫法。
+
+歷史/特性
+-------
+某些東西被意外毀了，所以我可以修改歷史。雖然被修改過，我說以下內容是事實。
+
+# 版本
+## 用易語言寫的一個版本
+## 用Java寫的一個版本
+## 用Go重寫三次
+## 用Haskell寫的一個版本
+## 用Racket/Scheme/Idris/Haskell重寫十三次
+### 函數和宏
+#### 複雜的Curried+非Curried函數和宏
+#### ↓
+#### 非Curried的函數和宏
+### 數據
+#### 用Mapping實現用戶自定義數據
+#### ↓
+#### 構--Scheme的cons的一種用法
+### Lazy
+#### 像MicroKanren一樣的Lazy （現在是可以沒有的）
+### 命名 Symbol
+#### Scheme的symbol
+#### ↓
+#### 普通symbol+call/gensym產生的不能symbol->string的symbol
+#### ↓
+#### 只有域+值的symbol
+call/gensym修改`域`，`域`默認是`()`。
+#### ↓
+#### 列表
++ `'hash-set`是`(名 '((#\h #\a #\s #\h) (#\s #\e #\t)))`
++ `'a`是`(名 '((#\a)))`
++ `(call/gensym 'a f)`產生`(名 '(#<procedure> (#\a)))`
+#### ↓
+#### 現在的
+...
+### 值
+開始就只有值
+### Mapping
+#### 不可知有哪些鍵 不可修改 作爲數據和模塊 帶有letrec功能
+#### ↓
+#### 可知有哪些鍵 可修改
+#### ↓
+#### Mapping,letrec分離 成爲普通的Mapping和letrec
+#### ↓
+#### Mapping的鍵可以是誤
+### 誤 錯誤 raise
+... （被我從歷史中刪除了）
+### 宏
+多次變化：
+#### 只有 參數爲環境+S-Exp 返回一個值 的函數 作爲宏
+#### 還有 參數爲 S-Exp 返回S-Exp 的函數 作爲宏 （現在的）
+### 反算
+#### 反算函數
+多次變化：
++ 全部反算
++ 表層反算
++ 都有
+#### ↓
+#### 解構
+有
++ 機-境
++ 機-形
++ 機-物
+#### ↓
+#### 刪 機-境
+### 爲反算出現的特殊形式 ！-界
+多次變化：
++ 特殊名字 是一個宏
++ 是特殊形式 （現在的）
+### 語法
+... （被我從歷史中刪除了）
+### 被刪除的
++ 數字
++ English
++ 新象形文字
++ 一種 undefined 類似 R7RS中可以繼續的raise
++ 某些函數 : map ...
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/lang.cabal b/lang.cabal
new file mode 100644
--- /dev/null
+++ b/lang.cabal
@@ -0,0 +1,25 @@
+-- Initial lang.cabal generated by cabal init.  For further documentation, 
+-- see http://haskell.org/cabal/users-guide/
+
+name:                lang
+version:             0.2
+synopsis:            A Lisp
+-- description:         
+homepage:            语.ml
+license:             AGPL-3
+license-file:        LICENSE
+author:              Zaoqi
+maintainer:          zaomir@outlook.com
+-- copyright:           
+category:            Language
+build-type:          Simple
+extra-source-files:  README.md
+cabal-version:       >=1.10
+
+library
+  exposed-modules:     Lang, Lang.Read, Lang.Value, Lang.Lang, Lang.Show
+  -- other-modules:       
+  other-extensions:    MultiParamTypeClasses, FunctionalDependencies
+  build-depends:       base>=4.9 && <4.10, Mapping >=2.0.0.0 && <3.0.0.0, http-streams, bytestring
+  -- hs-source-dirs:      
+  default-language:    Haskell2010
