diff options
Diffstat (limited to 'src/Text/Pandoc/Shared.hs')
| -rw-r--r-- | src/Text/Pandoc/Shared.hs | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/src/Text/Pandoc/Shared.hs b/src/Text/Pandoc/Shared.hs index c43839d40..88eccb96c 100644 --- a/src/Text/Pandoc/Shared.hs +++ b/src/Text/Pandoc/Shared.hs @@ -88,6 +88,7 @@ module Text.Pandoc.Shared ( QuoteContext (..), NoteTable, KeyTable, + Key (..), lookupKeySrc, refsMatch, -- * Prettyprinting @@ -127,6 +128,7 @@ import System.FilePath ( (</>) ) import Data.Generics (Typeable, Data) import qualified Control.Monad.State as S import Control.Monad (join) +import qualified Data.Map as M import Paths_pandoc (getDataFileName) -- @@ -704,7 +706,7 @@ defaultParserState = stateParserContext = NullState, stateQuoteContext = NoQuote, stateSanitizeHTML = False, - stateKeys = [], + stateKeys = M.empty, #ifdef _CITEPROC stateCitations = [], #endif @@ -739,15 +741,23 @@ data QuoteContext type NoteTable = [(String, String)] -type KeyTable = [([Inline], Target)] +newtype Key = Key [Inline] deriving (Show, Read) + +instance Eq Key where + Key a == Key b = refsMatch a b + +instance Ord Key where + compare (Key a) (Key b) = if a == b then EQ else compare a b + +type KeyTable = M.Map Key Target -- | Look up key in key table and return target object. lookupKeySrc :: KeyTable -- ^ Key table - -> [Inline] -- ^ Key + -> Key -- ^ Key -> Maybe Target -lookupKeySrc table key = case find (refsMatch key . fst) table of - Nothing -> Nothing - Just (_, src) -> Just src +lookupKeySrc table key = case M.lookup key table of + Nothing -> Nothing + Just src -> Just src -- | Returns @True@ if keys match (case insensitive). refsMatch :: [Inline] -> [Inline] -> Bool |