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Diffstat (limited to 'haddock-api/src/Haddock/Parser.hs')
-rw-r--r-- | haddock-api/src/Haddock/Parser.hs | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/haddock-api/src/Haddock/Parser.hs b/haddock-api/src/Haddock/Parser.hs new file mode 100644 index 00000000..ea4b7a3f --- /dev/null +++ b/haddock-api/src/Haddock/Parser.hs @@ -0,0 +1,44 @@ +{-# LANGUAGE OverloadedStrings #-} +{-# LANGUAGE StandaloneDeriving + , FlexibleInstances, UndecidableInstances + , IncoherentInstances #-} +{-# LANGUAGE LambdaCase #-} +-- | +-- Module : Haddock.Parser +-- Copyright : (c) Mateusz Kowalczyk 2013, +-- Simon Hengel 2013 +-- License : BSD-like +-- +-- Maintainer : haddock@projects.haskell.org +-- Stability : experimental +-- Portability : portable + +module Haddock.Parser ( parseParas + , parseString + , parseIdent + ) where + +import qualified Documentation.Haddock.Parser as P +import DynFlags (DynFlags) +import FastString (mkFastString) +import Documentation.Haddock.Types +import Lexer (mkPState, unP, ParseResult(POk)) +import Parser (parseIdentifier) +import RdrName (RdrName) +import SrcLoc (mkRealSrcLoc, unLoc) +import StringBuffer (stringToStringBuffer) + +parseParas :: DynFlags -> String -> DocH mod RdrName +parseParas d = P.overIdentifier (parseIdent d) . P.parseParas + +parseString :: DynFlags -> String -> DocH mod RdrName +parseString d = P.overIdentifier (parseIdent d) . P.parseString + +parseIdent :: DynFlags -> String -> Maybe RdrName +parseIdent dflags str0 = + let buffer = stringToStringBuffer str0 + realSrcLc = mkRealSrcLoc (mkFastString "<unknown file>") 0 0 + pstate = mkPState dflags buffer realSrcLc + in case unP parseIdentifier pstate of + POk _ name -> Just (unLoc name) + _ -> Nothing |