module Rakka.Wiki.Interpreter.Base
( interpreters
)
where
import Control.Arrow
import Control.Arrow.ListArrow
import Data.Map (Map)
import qualified Data.Map as M
import Data.Maybe
import Network.URI
import Rakka.Page
import Rakka.SystemConfig
import Rakka.Wiki
import Rakka.Wiki.Interpreter
import Text.XML.HXT.Arrow.XmlArrow
import Text.XML.HXT.Arrow.XmlNodeSet
interpreters :: [Interpreter]
interpreters = [ lineBreakInterp
, spanInterp
, divInterp
, pageNameInterp
, otherLangsInterp
, newPageInterp
, editPageInterp
]
lineBreakInterp :: Interpreter
lineBreakInterp = InlineCommandInterpreter {
iciName = "br"
, iciInterpret
= \ _ (InlineCommand _ attrs _) -> return $ LineBreak attrs
}
spanInterp :: Interpreter
spanInterp = InlineCommandInterpreter {
iciName = "span"
, iciInterpret
= \ _ (InlineCommand _ attrs contents) -> return $ Span attrs contents
}
divInterp :: Interpreter
divInterp = BlockCommandInterpreter {
bciName = "div"
, bciInterpret
= \ _ (BlockCommand _ attrs contents)
-> return $ Div attrs (map Block contents)
}
pageNameInterp :: Interpreter
pageNameInterp = InlineCommandInterpreter {
iciName = "pageName"
, iciInterpret
= \ ctx _ -> return $ Text (ctxPageName ctx)
}
otherLangsInterp :: Interpreter
otherLangsInterp
= BlockCommandInterpreter {
bciName = "inOtherLanguages"
, bciInterpret
= \ ctx _ ->
let linkTable = case ctxMainPage ctx of
Just page -> runLA ( getXPathTreesInDoc "/page/otherLang/link"
>>>
( getAttrValue0 "lang"
&&&
getAttrValue0 "page"
)
) page
Nothing -> []
in
case linkTable of
[] -> return EmptyBlock
_ -> do Languages langTable <- getSysConf (ctxSysConf ctx)
let merged = mergeTables langTable linkTable
return $ mkLangList merged
}
where
mergeTables :: Map LanguageTag LanguageName
-> [(LanguageTag, PageName)]
-> [(LanguageName, PageName)]
mergeTables _ [] = []
mergeTables m (x:xs) = let (langTag, name) = x
langName = fromMaybe langTag (M.lookup langTag m)
in
(langName, name) : mergeTables m xs
mkLangList :: [(LanguageName, PageName)] -> BlockElement
mkLangList xs = List Bullet (map mkLangLink xs)
mkLangLink :: (LanguageName, PageName) -> ListItem
mkLangLink (langName, name)
= [Inline (PageLink (Just name) Nothing (Just langName))]
--
newPageInterp :: Interpreter
newPageInterp
= InlineCommandInterpreter {
iciName = "newPage"
, iciInterpret
= \ ctx (InlineCommand _ args _) ->
do BaseURI baseURI <- getSysConf (ctxSysConf ctx)
let label = fromMaybe "Create new page" (lookup "label" args)
uri = uriToString id baseURI ""
attrs = [ ("type" , "button")
, ("value" , label)
, ("onclick", "Rakka.newPage(\"" ++ uri ++ "\")")
, ("class" , "newButton")
]
return (Input attrs)
}
--
editPageInterp :: Interpreter
editPageInterp
= InlineCommandInterpreter {
iciName = "editPage"
, iciInterpret
= \ ctx (InlineCommand _ args _) ->
do BaseURI baseURI <- getSysConf (ctxSysConf ctx)
let name = fromMaybe (ctxPageName ctx) (lookup "page" args)
label = fromMaybe "Edit this page" (lookup "label" args)
uri = uriToString id baseURI ""
attrs = [ ("type" , "button")
, ("value" , label)
, ("onclick", "Rakka.editPage(\"" ++ uri ++ "\", \"" ++ name ++ "\")")
, ("class" , "editButton")
]
return (Input attrs)
}