+{-# LANGUAGE
+ OverloadedStrings
+ , RecordWildCards
+ , UnicodeSyntax
+ , ViewPatterns
+ #-}
module Rakka.Wiki.Interpreter.Image
( interpreters
)
where
+import Data.Monoid.Unicode
+import Data.Text (Text)
+import qualified Data.Text as T
+import Network.URI
+import Prelude.Unicode
+import Rakka.Page
+import Rakka.SystemConfig
+import Rakka.Wiki.Interpreter
+import Rakka.Wiki
-import Control.Monad
-import Data.Maybe
-import Network.URI
-import Rakka.Page
-import Rakka.SystemConfig
-import Rakka.Wiki.Interpreter
-import Rakka.Wiki
-
-
-interpreters :: [Interpreter]
+interpreters ∷ [Interpreter]
interpreters = [ imageInterp
, imgFrameInterp
]
+-- <img src="[PageName]"
+-- alt="[Alternative]" -- 省略可能
+-- link="[PageName]" -- 省略可能、省略時は画像そのものへのリンク
+-- link="[Absolute URI]" -- 絶對 URI の場合はその URI へのリンク
+-- link="" /> -- 空文字列の場合はリンク無し
-- <a href="..." class="inlineImage ...">
-- <img src="..." alt="..." />
-- </a>
-imageInterp :: Interpreter
+imageInterp ∷ Interpreter
imageInterp
= InlineCommandInterpreter {
- iciName = "img"
+ iciName = "img"
, iciInterpret
- = \ ctx (InlineCommand _ attrs inside) ->
- do BaseURI baseURI <- getSysConf (ctxSysConf ctx)
-
- let pageName = case lookup "src" attrs of
- Just x -> x
- Nothing -> error "\"src\" attribute is missing"
- hrefAttr = ("href", uriToString id (mkPageURI baseURI pageName) "")
+ = \(InterpreterContext {..}) (InlineCommand _ attrs _) →
+ do BaseURI baseURI ← getSysConf ctxSysConf
+ let name = case lookup "src" attrs of
+ Just x → x
+ Nothing → error "\"src\" attribute is missing"
+ link = case lookup "link" attrs of
+ Just x
+ | T.null x → Nothing
+ | isURI' x → Just x
+ | otherwise → Just ∘ T.pack $ uriToString id (mkPageURI baseURI x ) ""
+ Nothing → Just ∘ T.pack $ uriToString id (mkPageURI baseURI name) ""
alt = lookup "alt" attrs
classAttr = case lookup "float" attrs of
- Nothing -> ("class", "inlineImage")
- Just "left" -> ("class", "inlineImage leftFloat")
- Just "right" -> ("class", "inlineImage rightFloat")
- Just others -> error ("unknown \"float\" attribute: " ++ others)
- anchorAttrs = [hrefAttr, classAttr]
-
- return (Anchor anchorAttrs [Image pageName alt])
+ Nothing → "inlineImage"
+ Just "left" → "inlineImage leftFloat"
+ Just "right" → "inlineImage rightFloat"
+ Just others → error ("unknown \"float\" attribute: " ⊕ T.unpack others)
+ result = case link of
+ Nothing → Span [("class", classAttr)] [Image (Right name) alt]
+ Just x → Anchor [ ("class", classAttr)
+ , ("href" , x ) ] [Image (Right name) alt]
+ return result
}
-- ...
-- </div>
-- </div>
-imgFrameInterp :: Interpreter
+imgFrameInterp ∷ Interpreter
imgFrameInterp
= BlockCommandInterpreter {
- bciName = "imgframe"
+ bciName = "imgframe"
, bciInterpret
- = \ ctx (BlockCommand _ attrs inside) ->
- do BaseURI baseURI <- getSysConf (ctxSysConf ctx)
-
- let pageName = case lookup "src" attrs of
- Just x -> x
- Nothing -> error "\"src\" attribute is missing"
- hrefAttr = ("href", uriToString id (mkPageURI baseURI pageName) "")
+ = \(InterpreterContext {..}) (BlockCommand _ attrs inside) →
+ do BaseURI baseURI ← getSysConf ctxSysConf
+ let name = case lookup "src" attrs of
+ Just x → x
+ Nothing → error "\"src\" attribute is missing"
+ link = case lookup "link" attrs of
+ Just x
+ | T.null x → Nothing
+ | isURI' x → Just x
+ | otherwise → Just ∘ T.pack $ uriToString id (mkPageURI baseURI x ) ""
+ Nothing → Just ∘ T.pack $ uriToString id (mkPageURI baseURI name) ""
classAttr = case lookup "float" attrs of
- Nothing -> ("class", "imageFrame")
- Just "left" -> ("class", "imageFrame leftFloat")
- Just "right" -> ("class", "imageFrame rightFloat")
- Just others -> error ("unknown \"float\" attribute: " ++ others)
+ Nothing → ("class", "imageFrame")
+ Just "left" → ("class", "imageFrame leftFloat")
+ Just "right" → ("class", "imageFrame rightFloat")
+ Just others → error ("unknown \"float\" attribute: " ⊕ T.unpack others)
+ image = case link of
+ Nothing → Image (Right name) Nothing
+ Just x → Anchor [("href" , x)] [Image (Right name) Nothing]
return (Div [classAttr]
[ Block (Div [("class", "imageData")]
- [ Inline (Anchor [hrefAttr]
- [ Image pageName Nothing ]) ])
+ [ Inline image ])
, Block (Div [("class", "imageCaption")]
- [ Block x | x <- inside ])
+ [ Block x | x ← inside ])
]
)
}
+
+isURI' ∷ Text → Bool
+isURI' = isURI ∘ T.unpack
\ No newline at end of file