diff options
Diffstat (limited to 'haddock-api/src/Haddock/Backends/Xhtml/Names.hs')
-rw-r--r-- | haddock-api/src/Haddock/Backends/Xhtml/Names.hs | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Names.hs b/haddock-api/src/Haddock/Backends/Xhtml/Names.hs new file mode 100644 index 00000000..cf12da40 --- /dev/null +++ b/haddock-api/src/Haddock/Backends/Xhtml/Names.hs @@ -0,0 +1,171 @@ +----------------------------------------------------------------------------- +-- | +-- Module : Haddock.Backends.Html.Names +-- Copyright : (c) Simon Marlow 2003-2006, +-- David Waern 2006-2009, +-- Mark Lentczner 2010 +-- License : BSD-like +-- +-- Maintainer : haddock@projects.haskell.org +-- Stability : experimental +-- Portability : portable +----------------------------------------------------------------------------- +module Haddock.Backends.Xhtml.Names ( + ppName, ppDocName, ppLDocName, ppRdrName, ppUncheckedLink, + ppBinder, ppBinderInfix, ppBinder', + ppModule, ppModuleRef, ppIPName, linkId, Notation(..) +) where + + +import Haddock.Backends.Xhtml.Utils +import Haddock.GhcUtils +import Haddock.Types +import Haddock.Utils + +import Text.XHtml hiding ( name, title, p, quote ) +import qualified Data.Map as M +import qualified Data.List as List + +import GHC +import Name +import RdrName +import FastString (unpackFS) + + +-- | Indicator of how to render a 'DocName' into 'Html' +data Notation = Raw -- ^ Render as-is. + | Infix -- ^ Render using infix notation. + | Prefix -- ^ Render using prefix notation. + deriving (Eq, Show) + +ppOccName :: OccName -> Html +ppOccName = toHtml . occNameString + + +ppRdrName :: RdrName -> Html +ppRdrName = ppOccName . rdrNameOcc + +ppIPName :: HsIPName -> Html +ppIPName = toHtml . ('?':) . unpackFS . hsIPNameFS + + +ppUncheckedLink :: Qualification -> (ModuleName, OccName) -> Html +ppUncheckedLink _ (mdl, occ) = linkIdOcc' mdl (Just occ) << ppOccName occ -- TODO: apply ppQualifyName + + +-- The Bool indicates if it is to be rendered in infix notation +ppLDocName :: Qualification -> Notation -> Located DocName -> Html +ppLDocName qual notation (L _ d) = ppDocName qual notation True d + +ppDocName :: Qualification -> Notation -> Bool -> DocName -> Html +ppDocName qual notation insertAnchors docName = + case docName of + Documented name mdl -> + linkIdOcc mdl (Just (nameOccName name)) insertAnchors + << ppQualifyName qual notation name mdl + Undocumented name + | isExternalName name || isWiredInName name -> + ppQualifyName qual notation name (nameModule name) + | otherwise -> ppName notation name + +-- | Render a name depending on the selected qualification mode +ppQualifyName :: Qualification -> Notation -> Name -> Module -> Html +ppQualifyName qual notation name mdl = + case qual of + NoQual -> ppName notation name + FullQual -> ppFullQualName notation mdl name + LocalQual localmdl -> + if moduleString mdl == moduleString localmdl + then ppName notation name + else ppFullQualName notation mdl name + RelativeQual localmdl -> + case List.stripPrefix (moduleString localmdl) (moduleString mdl) of + -- local, A.x -> x + Just [] -> ppName notation name + -- sub-module, A.B.x -> B.x + Just ('.':m) -> toHtml $ m ++ '.' : getOccString name + -- some module with same prefix, ABC.x -> ABC.x + Just _ -> ppFullQualName notation mdl name + -- some other module, D.x -> D.x + Nothing -> ppFullQualName notation mdl name + AliasedQual aliases localmdl -> + case (moduleString mdl == moduleString localmdl, + M.lookup mdl aliases) of + (False, Just alias) -> ppQualName notation alias name + _ -> ppName notation name + + +ppFullQualName :: Notation -> Module -> Name -> Html +ppFullQualName notation mdl name = wrapInfix notation (getOccName name) qname + where + qname = toHtml $ moduleString mdl ++ '.' : getOccString name + +ppQualName :: Notation -> ModuleName -> Name -> Html +ppQualName notation mdlName name = wrapInfix notation (getOccName name) qname + where + qname = toHtml $ moduleNameString mdlName ++ '.' : getOccString name + +ppName :: Notation -> Name -> Html +ppName notation name = wrapInfix notation (getOccName name) $ toHtml (getOccString name) + + +ppBinder :: Bool -> OccName -> Html +-- The Bool indicates whether we are generating the summary, in which case +-- the binder will be a link to the full definition. +ppBinder True n = linkedAnchor (nameAnchorId n) << ppBinder' Prefix n +ppBinder False n = namedAnchor (nameAnchorId n) ! [theclass "def"] + << ppBinder' Prefix n + +ppBinderInfix :: Bool -> OccName -> Html +ppBinderInfix True n = linkedAnchor (nameAnchorId n) << ppBinder' Infix n +ppBinderInfix False n = namedAnchor (nameAnchorId n) ! [theclass "def"] + << ppBinder' Infix n + +ppBinder' :: Notation -> OccName -> Html +ppBinder' notation n = wrapInfix notation n $ ppOccName n + +wrapInfix :: Notation -> OccName -> Html -> Html +wrapInfix notation n = case notation of + Infix | is_star_kind -> id + | not is_sym -> quote + Prefix | is_star_kind -> id + | is_sym -> parens + _ -> id + where + is_sym = isSymOcc n + is_star_kind = isTcOcc n && occNameString n == "*" + +linkId :: Module -> Maybe Name -> Html -> Html +linkId mdl mbName = linkIdOcc mdl (fmap nameOccName mbName) True + + +linkIdOcc :: Module -> Maybe OccName -> Bool -> Html -> Html +linkIdOcc mdl mbName insertAnchors = + if insertAnchors + then anchor ! [href url] + else id + where + url = case mbName of + Nothing -> moduleUrl mdl + Just name -> moduleNameUrl mdl name + + +linkIdOcc' :: ModuleName -> Maybe OccName -> Html -> Html +linkIdOcc' mdl mbName = anchor ! [href url] + where + url = case mbName of + Nothing -> moduleHtmlFile' mdl + Just name -> moduleNameUrl' mdl name + + +ppModule :: Module -> Html +ppModule mdl = anchor ! [href (moduleUrl mdl)] + << toHtml (moduleString mdl) + + +ppModuleRef :: ModuleName -> String -> Html +ppModuleRef mdl ref = anchor ! [href (moduleHtmlFile' mdl ++ ref)] + << toHtml (moduleNameString mdl) + -- NB: The ref parameter already includes the '#'. + -- This function is only called from markupModule expanding a + -- DocModule, which doesn't seem to be ever be used. |