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{-# LANGUAGE CPP, FlexibleInstances, OverlappingInstances #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
{-# OPTIONS_HADDOCK not-home #-}
module Text.StringTemplate.Instances() where
import Text.StringTemplate.Classes
import qualified Data.Map as M
import Numeric
import qualified Data.ByteString.Char8 as B
import qualified Data.ByteString.Lazy.Char8 as LB
import Data.Ratio
import Data.Array
import Data.Maybe
import qualified Data.Foldable as F
import Data.Time
import Data.Void
import qualified Data.Text as T
import qualified Data.Text.Lazy as LT
#if !MIN_VERSION_time(1,5,0)
import System.Locale (defaultTimeLocale)
#endif
{--------------------------------------------------------------------
Additional instances for items that may be set as StringTemplate
attributes. The code should provide examples of how to proceed.
--------------------------------------------------------------------}
--Basics
instance ToSElem () where
toSElem _ = STR ""
instance ToSElem Void where
toSElem = absurd
instance ToSElem Char where
toSElem = STR . (:[])
toSElemList = STR
instance ToSElem LB.ByteString where
toSElem = BS
instance ToSElem B.ByteString where
toSElem = BS . LB.fromChunks . (:[])
instance ToSElem LT.Text where
toSElem = TXT
instance ToSElem T.Text where
toSElem = TXT . LT.fromStrict
instance ToSElem Bool where
toSElem True = STR ""
toSElem _ = SNull
instance (ToSElem a) => ToSElem (Maybe a) where
toSElem (Just x) = toSElem x
toSElem _ = SNull
instance (ToSElem a) => ToSElem (M.Map String a) where
toSElem = SM . fmap toSElem
instance (ToSElem a) => ToSElem [a] where
toSElem = toSElemList
instance (ToSElem a, Ix i) => ToSElem (Array i a) where
toSElem = toSElem . elems
instance (ToSElem a, F.Foldable t) => ToSElem (t a) where
toSElem = toSElemList . F.toList
--Numbers
instance StringTemplateShows Float where
stringTemplateShow = flip showFloat ""
stringTemplateFormattedShow = flip flip [] . showGFloat . fmap fst . listToMaybe . reads
instance ToSElem Float where
toSElem = stShowsToSE
instance StringTemplateShows Double where
stringTemplateShow = flip showFloat ""
stringTemplateFormattedShow = flip flip [] . showGFloat . fmap fst . listToMaybe . reads
instance ToSElem Double where
toSElem = stShowsToSE
instance ToSElem Int where
toSElem = STR . show
instance ToSElem Integer where
toSElem = STR . show
instance (Integral a, Show a) => ToSElem (Ratio a) where
toSElem = STR . show
--Dates and Times
instance StringTemplateShows Day where
stringTemplateShow = show
stringTemplateFormattedShow = formatTime defaultTimeLocale
instance ToSElem Day where
toSElem = stShowsToSE
instance StringTemplateShows LocalTime where
stringTemplateShow = show
stringTemplateFormattedShow = formatTime defaultTimeLocale
instance ToSElem LocalTime where
toSElem = stShowsToSE
instance StringTemplateShows TimeOfDay where
stringTemplateShow = show
stringTemplateFormattedShow = formatTime defaultTimeLocale
instance ToSElem TimeOfDay where
toSElem = stShowsToSE
instance StringTemplateShows UTCTime where
stringTemplateShow = show
stringTemplateFormattedShow = formatTime defaultTimeLocale
instance ToSElem UTCTime where
toSElem = stShowsToSE
instance StringTemplateShows TimeZone where
stringTemplateShow = show
stringTemplateFormattedShow = formatTime defaultTimeLocale
instance ToSElem TimeZone where
toSElem = stShowsToSE
instance StringTemplateShows ZonedTime where
stringTemplateShow = show
stringTemplateFormattedShow = formatTime defaultTimeLocale
instance ToSElem ZonedTime where
toSElem = stShowsToSE
t2map :: [SElem a] -> SElem a
t2map = SM . M.fromList . zip (map show [(0::Int)..])
instance (ToSElem a, ToSElem b) => ToSElem (a, b) where
toSElem (a,b) = t2map [toSElem a, toSElem b]
instance (ToSElem a, ToSElem b, ToSElem c) => ToSElem (a, b, c) where
toSElem (a,b,c) = t2map [toSElem a, toSElem b, toSElem c]
instance (ToSElem a, ToSElem b, ToSElem c, ToSElem d) => ToSElem (a, b, c, d) where
toSElem (a,b,c,d) = t2map [toSElem a, toSElem b, toSElem c, toSElem d]
instance (ToSElem a, ToSElem b, ToSElem c, ToSElem d, ToSElem e) => ToSElem (a, b, c, d, e) where
toSElem (a,b,c,d,e) = t2map [toSElem a, toSElem b, toSElem c, toSElem d, toSElem e]
instance (ToSElem a, ToSElem b, ToSElem c, ToSElem d, ToSElem e, ToSElem f) => ToSElem (a, b, c, d, e, f) where
toSElem (a,b,c,d,e, f) = t2map [toSElem a, toSElem b, toSElem c, toSElem d, toSElem e, toSElem f]
instance (ToSElem a, ToSElem b, ToSElem c, ToSElem d, ToSElem e, ToSElem f, ToSElem g) => ToSElem (a, b, c, d, e, f, g) where
toSElem (a,b,c,d,e,f,g) = t2map [toSElem a, toSElem b, toSElem c, toSElem d, toSElem e, toSElem f, toSElem g]
instance (ToSElem a, ToSElem b, ToSElem c, ToSElem d, ToSElem e, ToSElem f, ToSElem g, ToSElem h) => ToSElem (a, b, c, d, e, f, g, h) where
toSElem (a,b,c,d,e,f,g,h) = t2map [toSElem a, toSElem b, toSElem c, toSElem d, toSElem e, toSElem f, toSElem g, toSElem h]
instance (ToSElem a, ToSElem b, ToSElem c, ToSElem d, ToSElem e, ToSElem f, ToSElem g, ToSElem h, ToSElem i) => ToSElem (a, b, c, d, e, f, g, h, i) where
toSElem (a,b,c,d,e,f,g,h,i) = t2map [toSElem a, toSElem b, toSElem c, toSElem d, toSElem e, toSElem f, toSElem g, toSElem h, toSElem i]
instance (ToSElem a, ToSElem b, ToSElem c, ToSElem d, ToSElem e, ToSElem f, ToSElem g, ToSElem h, ToSElem i, ToSElem j) => ToSElem (a, b, c, d, e, f, g, h, i, j) where
toSElem (a,b,c,d,e,f,g,h,i,j) = t2map [toSElem a, toSElem b, toSElem c, toSElem d, toSElem e, toSElem f, toSElem g, toSElem h, toSElem i, toSElem j]
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