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{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE ScopedTypeVariables #-}
{- |
Module : Text.Pandoc.Readers.RST
Copyright : Copyright (C) 2006-2020 John MacFarlane
License : GNU GPL, version 2 or above
Maintainer : John MacFarlane <jgm@berkeley.edu>
Stability : alpha
Portability : portable
Conversion from CSV to a 'Pandoc' table.
-}
module Text.Pandoc.Readers.CSV ( readCSV ) where
import Data.Text (Text)
import qualified Data.Text as T
import Text.Pandoc.CSV (parseCSV, defaultCSVOptions)
import Text.Pandoc.Definition
import qualified Text.Pandoc.Builder as B
import Text.Pandoc.Class (PandocMonad)
import Text.Pandoc.Shared (crFilter)
import Text.Pandoc.Error
import Text.Pandoc.Options (ReaderOptions)
import Control.Monad.Except (throwError)
readCSV :: PandocMonad m
=> ReaderOptions -- ^ Reader options
-> Text -- ^ Text to parse (assuming @'\n'@ line endings)
-> m Pandoc
readCSV _opts s =
case parseCSV defaultCSVOptions (crFilter s) of
Right (r:rs) -> return $ B.doc $ B.table capt (zip aligns widths) hdrs rows
where capt = mempty
numcols = length r
toplain = B.plain . B.text . T.strip
hdrs = map toplain r
rows = map (map toplain) rs
aligns = replicate numcols AlignDefault
widths = replicate numcols 0
Right [] -> return $ B.doc mempty
Left e -> throwError $ PandocParsecError s e
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