Implemented <inOtherLanguages />

[Rakka.git] / Rakka / Wiki / Interpreter / Base.hs

diff --git a/Rakka/Wiki/Interpreter/Base.hs b/Rakka/Wiki/Interpreter/Base.hs
index 1475f461478c4d8694dd680216b449431a0cb3a8..d36b80df34c4250c31ca69e1314b1a704836bab7 100644 (file)
--- a/Rakka/Wiki/Interpreter/Base.hs
+++ b/Rakka/Wiki/Interpreter/Base.hs
@@ -1,20 +1,24 @@
 module Rakka.Wiki.Interpreter.Base
-    ( baseInterpreters
+    ( interpreters
     )
     where
 
+import           Data.Map (Map)
+import qualified Data.Map as M
+import           Data.Maybe
+import           Rakka.Page
+import           Rakka.SystemConfig
 import           Rakka.Wiki
 import           Rakka.Wiki.Interpreter
-import           Rakka.Wiki.Interpreter.Base.Image
 
 
-baseInterpreters :: [Interpreter]
-baseInterpreters = [ lineBreakInterp
-                   , spanInterp
-                   , divInterp
-                   , imageInterp
-                   , imgFrameInterp
-                   ]
+interpreters :: [Interpreter]
+interpreters = [ lineBreakInterp
+               , spanInterp
+               , divInterp
+               , pageNameInterp
+               , otherLangsInterp
+               ]
 
 
 lineBreakInterp :: Interpreter
@@ -39,3 +43,44 @@ divInterp = BlockCommandInterpreter {
             , bciInterpret
                 = \ _ (BlockCommand _ attrs contents) -> return $ Div attrs contents
             }
+
+
+pageNameInterp :: Interpreter
+pageNameInterp = InlineCommandInterpreter {
+                   iciName      = "pageName"
+                 , iciInterpret
+                     = \ ctx _ -> return $ Text (ctxPageName ctx)
+                 }
+
+
+otherLangsInterp :: Interpreter
+otherLangsInterp
+    = BlockCommandInterpreter {
+        bciName      = "inOtherLanguages"
+      , bciInterpret
+          = \ ctx _ ->
+            case fmap pageOtherLang (ctxMainPage ctx) of
+              Nothing
+                -> return EmptyBlock
+
+              Just linkTable
+                  -> do Languages langTable <- getSysConf (ctxSysConf ctx)
+                        let merged = mergeTables langTable (M.toList linkTable)
+                        return $ List $ mkLangList merged
+      }
+    where
+      mergeTables :: Map LanguageTag LanguageName
+                  -> [(LanguageTag, PageName)]
+                  -> [(LanguageName, PageName)]
+      mergeTables _ []     = []
+      mergeTables m (x:xs) = let (langTag, pageName) = x
+                                 langName            = fromMaybe langTag (M.lookup langTag m)
+                             in
+                               (langName, pageName) : mergeTables m xs
+
+      mkLangList :: [(LanguageName, PageName)] -> ListElement
+      mkLangList xs = ListElement Bullet (map mkLangLink xs)
+
+      mkLangLink :: (LanguageName, PageName) -> ListItem
+      mkLangLink (langName, pageName)
+          = [Right (PageLink (Just pageName) Nothing (Just langName))]
\ No newline at end of file