csv-sip (empty) → 0.1.0
raw patch · 8 files changed
+1540/−0 lines, 8 filesdep +basedep +bytestringdep +conduitsetup-changed
Dependencies added: base, bytestring, conduit, containers, csv-sip, hspec, text, transformers
Files
- ChangeLog.md +3/−0
- LICENSE +674/−0
- README.md +18/−0
- Setup.hs +2/−0
- csv-sip.cabal +61/−0
- src/Data/CSV/Sip.hs +400/−0
- test/Data/CSV/SipSpec.hs +352/−0
- test/Spec.hs +30/−0
+ ChangeLog.md view
@@ -0,0 +1,3 @@+# Changelog for csv-sip++## Unreleased changes
+ LICENSE view
@@ -0,0 +1,674 @@+ GNU GENERAL PUBLIC LICENSE+ Version 3, 29 June 2007++ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++ Preamble++ The GNU General Public License is a free, copyleft license for+software and other kinds of works.++ The licenses for most software and other practical works are designed+to take away your freedom to share and change the works. By contrast,+the GNU General Public License is intended to guarantee your freedom to+share and change all versions of a program--to make sure it remains free+software for all its users. We, the Free Software Foundation, use the+GNU General Public License for most of our software; it applies also to+any other work released this way by its authors. You can apply it to+your programs, too.++ When we speak of free software, we are referring to freedom, not+price. 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+ README.md view
@@ -0,0 +1,18 @@+# csv-sip+Copyright (C) Jonathan Lamothe <jonathan@jlamothe.net>++This program is free software: you can redistribute it and/or modify+it under the terms of the GNU General Public License as published by+the Free Software Foundation, either version 3 of the License, or (at+your option) any later version.++This program is distributed in the hope that it will be useful, but+WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU+General Public License for more details.++You should have received a copy of the GNU General Public License+along with this program. If not, see <https://www.gnu.org/licenses/>.++## Executive Summary+This library allows for reading and writing to and from CSV files in a streaming manner. Files can be read and written to on a row-by-row basis allowing larger files to be worked with, since the whole file doesn't have to be loaded to manipulate it. It is based on the [conduit](https://hackage.haskell.org/package/conduit] library.
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ csv-sip.cabal view
@@ -0,0 +1,61 @@+cabal-version: 2.2++-- This file has been generated from package.yaml by hpack version 0.34.4.+--+-- see: https://github.com/sol/hpack++name: csv-sip+version: 0.1.0+synopsis: extracts data from a CSV file+description: extracts data from a CSV file - see README.md for more details+category: Data+homepage: https://codeberg.org/jlamothe/csv-sip+bug-reports: https://codeberg.org/jlamothe/csv-sip/issues+author: Jonathan Lamothe+maintainer: jonathan@jlamothe.net+copyright: (C) 2022 Jonathan Lamothe+license: GPL-3.0-or-later+license-file: LICENSE+build-type: Simple+extra-source-files:+ README.md+ ChangeLog.md++library+ exposed-modules:+ Data.CSV.Sip+ other-modules:+ Paths_csv_sip+ hs-source-dirs:+ src+ ghc-options: -Wall+ build-depends:+ base >=4.7 && <5+ , bytestring+ , conduit >=1.3.4.2 && <1.4+ , containers+ , text+ , transformers+ default-language: Haskell2010+ autogen-modules: Paths_csv_sip++test-suite csv-sip-test+ type: exitcode-stdio-1.0+ main-is: Spec.hs+ other-modules:+ Data.CSV.SipSpec+ Paths_csv_sip+ hs-source-dirs:+ test+ ghc-options: -Wall -threaded -rtsopts -with-rtsopts=-N+ build-depends:+ base >=4.7 && <5+ , bytestring+ , conduit >=1.3.4.2 && <1.4+ , containers+ , csv-sip+ , hspec >=2.8.5 && <2.9+ , text+ , transformers+ default-language: Haskell2010+ autogen-modules: Paths_csv_sip
+ src/Data/CSV/Sip.hs view
@@ -0,0 +1,400 @@+{-|++Module : Data.CSV.Sip+Description : works with CSV files+Copyright : (C) Jonathan Lamothe+License : GPL-3.0-or-later+Maintainer : jonathan@jlamothe.net+Stability : experimental+Portability : POSIX++This program is free software: you can redistribute it and/or modify+it under the terms of the GNU General Public License as published by+the Free Software Foundation, either version 3 of the License, or (at+your option) any later version.++This program is distributed in the hope that it will be useful, but+WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU+General Public License for more details.++You should have received a copy of the GNU General Public License+along with this program. If not, see <https://www.gnu.org/licenses/>.++-}++{-# LANGUAGE LambdaCase, OverloadedStrings #-}++module Data.CSV.Sip (+ -- * Working with Files+ -- ** Read an entire CSV file+ slurpCSV,+ slurpRawCSV,+ slurpLabelledCSV,+ slurpRawLabelledCSV,+ -- ** Write an entire CSV file+ writeCSV,+ writeRawCSV,+ -- * Conduits+ -- ** Producers+ readFromCSV,+ readFromCSVRaw,+ encodeCSV,+ encodeRawCSV,+ -- ** Consumers+ writeToCSV,+ writeToCSVRaw,+ -- ** Transformers+ -- *** Encoding+ encodeRows,+ encodeRawRows,+ -- *** Decoding+ labelFields,+ decodeRows,+ decodeRawRows,+ decodeUTF8,+ toBytes,+) where++import Conduit+ ( ConduitT+ , MonadResource+ , await+ , mapC+ , runConduit+ , sinkFile+ , sourceFile+ , yield+ , (.|)+ )+import Control.Monad (unless)+import Control.Monad.Trans.Class (lift)+import Control.Monad.Trans.State (StateT, evalStateT, get, gets, modify)+import qualified Data.ByteString as BS+import Data.Conduit.List (consume, sourceList)+import qualified Data.Map as M+import Data.Maybe (fromMaybe)+import qualified Data.Text as T+import Data.Text.Encoding (decodeUtf8', encodeUtf8)+import Data.Word (Word8)++-- | read an entire CSV file+slurpCSV+ :: MonadResource m+ => FilePath+ -- ^ the path to the file to read+ -> m [[T.Text]]+slurpCSV file = runConduit $ sourceFile file .| decodeRows .| consume++-- | read an entire CSV file in raw mode+slurpRawCSV+ :: MonadResource m+ => FilePath+ -- ^ the path to the file to read+ -> m [[BS.ByteString]]+slurpRawCSV file = runConduit $ sourceFile file .| decodeRawRows .| consume++-- | read an entire CSV file with a header+slurpLabelledCSV+ :: MonadResource m+ => FilePath+ -- ^ the path to the file to read+ -> m [M.Map T.Text T.Text]+slurpLabelledCSV file = runConduit $+ sourceFile file .| decodeRows .| labelFields .|consume++-- | read an entire CSV file with a header+slurpRawLabelledCSV+ :: MonadResource m+ => FilePath+ -- ^ the path to the file to read+ -> m [M.Map BS.ByteString BS.ByteString]+slurpRawLabelledCSV file = runConduit $+ sourceFile file .| decodeRawRows .| labelFields .|consume++-- | write a CSV file from Text-based rows+writeCSV+ :: MonadResource m+ => FilePath+ -- ^ the path to the file to write to+ -> [[T.Text]]+ -- ^ the fields/rows being written+ -> m ()+writeCSV file csv = runConduit $ encodeCSV csv .| sinkFile file++-- | write a CSV file from raw ByteString-based rows+writeRawCSV+ :: MonadResource m+ => FilePath+ -- ^ the path to the file to write to+ -> [[BS.ByteString]]+ -- ^ the fields/rows being written+ -> m ()+writeRawCSV file csv = runConduit $ encodeRawCSV csv .| sinkFile file++-- | reads a stream of Text-based rows from a CSV file+readFromCSV+ :: MonadResource m+ => FilePath+ -- ^ the path to the CSV file to read from+ -> ConduitT i [T.Text] m ()+readFromCSV file = sourceFile file .| decodeRows++-- | reads a stream of ByteString-based rows from a CSV file+readFromCSVRaw+ :: MonadResource m+ => FilePath+ -- ^ the path to the CSV file to read from+ -> ConduitT i [BS.ByteString] m ()+readFromCSVRaw file = sourceFile file .| decodeRawRows++-- | encode an entire CSV file+encodeCSV+ :: Monad m+ => [[T.Text]]+ -- ^ the data being encoded, organized into rows and fields+ -> ConduitT () BS.ByteString m ()+encodeCSV csv = sourceList csv .| encodeRows++-- | encode an entire CSV file+encodeRawCSV+ :: Monad m+ => [[BS.ByteString]]+ -- ^ the data being encoded, organized into rows and fields+ -> ConduitT () BS.ByteString m ()+encodeRawCSV csv = sourceList csv .| encodeRawRows++-- | Writes a stream of Text-based rows to a CSV file+writeToCSV+ :: MonadResource m+ => FilePath+ -- ^ the path to the CSV file to write to+ -> ConduitT [T.Text] o m ()+writeToCSV file = encodeRows .| sinkFile file++-- | Writes a stream of ByteString-based rows to a CSV file+writeToCSVRaw+ :: MonadResource m+ => FilePath+ -- ^ the path to the CSV file to write to+ -> ConduitT [BS.ByteString] o m ()+writeToCSVRaw file = encodeRawRows .| sinkFile file++-- | encode a CSV stream row by row, each element in the list read+-- represents a field, with the entire list representing a row+encodeRows :: Monad m => ConduitT [T.Text] BS.ByteString m ()+encodeRows = mapC (map encodeUtf8) .| encodeRawRows++-- | encode raw CSV stream row by row, each element in the list read+-- represents a field, with the entire list representing a row+encodeRawRows :: Monad m => ConduitT [BS.ByteString] BS.ByteString m ()+encodeRawRows = await >>= \case++ Just fs-> do+ encodeFields fs+ encodeRawRows++ Nothing -> return ()++-- | read a CSV stream, using the first row as a header containing+-- field labels+labelFields :: (Monad m, Ord a) => ConduitT [a] (M.Map a a) m ()+labelFields = await >>= \case+ Just headers -> labelLoop headers+ Nothing -> return ()++-- | decode the rows from a stream of ByteStrings+decodeRows :: Monad m => ConduitT BS.ByteString [T.Text] m ()+decodeRows = decodeRawRows .| mapC (map $ fromMaybe "" . decodeUTF8)++-- | decode the rows returning raw ByteStrings instead of text+decodeRawRows :: Monad m => ConduitT BS.ByteString [BS.ByteString] m ()+decodeRawRows = toBytes .| evalStateT decodeLoop newDecodeState++-- | decode a raw ByteString into Text (if possible)+decodeUTF8 :: BS.ByteString -> Maybe T.Text+decodeUTF8 bs = case decodeUtf8' bs of+ Left _ -> Nothing+ Right txt -> Just txt++-- | convert a stream to ByteStrings to a string of bytes+toBytes :: Monad m => ConduitT BS.ByteString Word8 m ()+toBytes = await >>= \case+ Just bs -> do+ let bytes = BS.unpack bs+ mapM_ yield bytes+ toBytes+ Nothing -> return ()++-- Internal++data DecodeState = DecodeState+ { isQuoted :: Bool+ , fields :: [BS.ByteString]+ , collected :: BS.ByteString+ } deriving (Eq, Show)++type Decoder m = StateT DecodeState (ConduitT Word8 [BS.ByteString] m) ()+type Modifier = DecodeState -> DecodeState++newDecodeState :: DecodeState+newDecodeState = DecodeState+ { isQuoted = False+ , fields = []+ , collected = ""+ }++-- Conduits++encodeFields+ :: Monad m+ => [BS.ByteString]+ -> ConduitT [BS.ByteString] BS.ByteString m ()+encodeFields [] = yield "\r\n"+encodeFields [f] = yield $ escapeField f `BS.append` "\r\n"+encodeFields (f:fs) = do+ yield $ escapeField f `BS.append` ","+ encodeFields fs++labelLoop :: (Monad m, Ord a) => [a] -> ConduitT [a] (M.Map a a) m ()+labelLoop headers = await >>= \case+ Just values -> do+ yield $ M.fromList $ zip headers values+ labelLoop headers+ Nothing -> return ()++-- Decoders++decodeLoop :: Monad m => Decoder m+decodeLoop = lift await >>= \case+ Just byte -> case byte of+ 0x22 -> processQuote+ 0x2c -> processComma+ 0x0d -> processCR+ 0x0a -> processLF+ _ -> performAction $ addByte byte+ Nothing -> cleanup++processQuote :: Monad m => Decoder m+processQuote = gets isQuoted >>= \case+ True -> processQuotedQuote+ False -> processUnquotedQuote++processComma :: Monad m => Decoder m+processComma = gets isQuoted >>= performAction . \case+ True -> addByte 0x2c+ False -> commitField++processCR :: Monad m => Decoder m+processCR = gets isQuoted >>= \case+ True -> performAction $ addByte 0xd+ False -> endRow++processLF :: Monad m => Decoder m+processLF = gets isQuoted >>= \case+ True -> performAction $ addByte 0xa+ False -> endRow++processQuotedQuote :: Monad m => Decoder m+processQuotedQuote = lift await >>= \case+ Just byte -> case byte of+ 0x22 -> performAction $ addByte 0x22 -- quote+ 0x2c -> performAction commitField -- comma+ 0x0d -> commitRow -- carriage return+ 0x0a -> commitRow -- line feed+ _ -> corruptedField+ Nothing -> cleanup++processUnquotedQuote :: Monad m => Decoder m+processUnquotedQuote = gets (BS.null . collected) >>= \case+ True -> performAction setQuoted+ False -> corruptedField++endRow :: Monad m => Decoder m+endRow = do+ s <- get+ if null (fields s) && BS.null (collected s)+ then decodeLoop+ else commitRow++commitRow :: Monad m => Decoder m+commitRow = do+ modify commitField+ gets fields >>= lift . yield+ performAction dropFields++corruptedField :: Monad m => Decoder m+corruptedField = do+ modify dropField+ ignoreField++ignoreField :: Monad m => Decoder m+ignoreField = lift await >>= \case+ Just byte -> case byte of+ 0x2c -> performAction commitField -- comma+ 0x0d -> commitRow+ _ -> ignoreField+ Nothing -> cleanup++cleanup :: Monad m => Decoder m+cleanup = do+ gets isQuoted >>= \case+ True -> modify $ commitField . dropField+ False -> gets (BS.null . collected) >>= \case+ True -> return ()+ False -> modify commitField+ fs <- gets fields+ unless (null fs) $+ lift $ yield fs++performAction :: Monad m => Modifier -> Decoder m+performAction f = do+ modify f+ decodeLoop++-- Modifiers++addByte :: Word8 -> Modifier+addByte b s = let+ collected' = BS.snoc (collected s) b+ in s { collected = collected' }++commitField :: Modifier+commitField s = let+ isQuoted' = False+ fields' = fields s ++ [collected s]+ collected' = ""+ in s+ { isQuoted = isQuoted'+ , fields = fields'+ , collected = collected'+ }++dropFields :: Modifier+dropFields s = s { fields = [] }++dropField :: Modifier+dropField s = s+ { isQuoted = False+ , collected = ""+ }++setQuoted :: Modifier+setQuoted s = s { isQuoted = True }++-- Helpers+escapeField :: BS.ByteString -> BS.ByteString+escapeField field = let+ bytes = BS.unpack field+ in BS.concat+ [ "\""+ , BS.pack $ escapeLoop bytes+ , "\""+ ]++escapeLoop :: [Word8] -> [Word8]+escapeLoop [] = []+escapeLoop (0x22:bs) = [0x22, 0x22] ++ escapeLoop bs -- escape quote+escapeLoop (b:bs) = b : escapeLoop bs++--jl
+ test/Data/CSV/SipSpec.hs view
@@ -0,0 +1,352 @@+{-++csv-sip+Copyright (C) Jonathan Lamothe <jonathan@jlamothe.net>++This program is free software: you can redistribute it and/or modify+it under the terms of the GNU General Public License as published by+the Free Software Foundation, either version 3 of the License, or (at+your option) any later version.++This program is distributed in the hope that it will be useful, but+WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU+General Public License for more details.++You should have received a copy of the GNU General Public License+along with this program. If not, see <https://www.gnu.org/licenses/>.++-}++{-# LANGUAGE OverloadedStrings #-}++module Data.CSV.SipSpec (spec) where++import Conduit (runConduit, (.|))+import qualified Data.ByteString as BS+import Data.Char (ord)+import Data.Conduit.List (consume, sourceList)+import qualified Data.Map as M+import Test.Hspec (Spec, context, describe, it, shouldBe)++import Data.CSV.Sip++spec :: Spec+spec = describe "Data.CSV.Sip" $ do+ encodeCSVSpec+ encodeRawCSVSpec+ encodeRowsSpec+ encodeRawRowsSpec+ labelFieldsSpec+ decodeRowsSpec+ decodeRawRowsSpec+ decodeUTF8Spec+ toBytesSpec++encodeCSVSpec :: Spec+encodeCSVSpec = describe "encodeCSV" $ do+ result <- BS.concat <$> runConduit+ (encodeCSV input .| consume)+ it ("shouldBe " ++ show expected) $+ result `shouldBe` expected+ where++ input =+ [ [ "foo", "a\"b" ]+ , [ "a\rb", "a\nb" ]+ ]++ expected = BS.concat+ [ "\"foo\",\"a\"\"b\"\r\n"+ , "\"a\rb\",\"a\nb\"\r\n"+ ]++encodeRawCSVSpec :: Spec+encodeRawCSVSpec = describe "encodeRawCSV" $ do+ result <- BS.concat <$> runConduit+ (encodeRawCSV input .| consume)+ it ("shouldBe " ++ show expected) $+ result `shouldBe` expected+ where++ input =+ [ [ "foo", "a\"b" ]+ , [ "a\rb", "a\nb" ]+ ]++ expected = BS.concat+ [ "\"foo\",\"a\"\"b\"\r\n"+ , "\"a\rb\",\"a\nb\"\r\n"+ ]++encodeRowsSpec :: Spec+encodeRowsSpec = describe "encodeRows" $ do+ result <- BS.concat <$> runConduit+ (sourceList input .| encodeRows .| consume)+ it ("shouldBe " ++ show expected) $+ result `shouldBe` expected+ where++ input =+ [ [ "foo", "a\"b" ]+ , [ "a\rb", "a\nb" ]+ ]++ expected = BS.concat+ [ "\"foo\",\"a\"\"b\"\r\n"+ , "\"a\rb\",\"a\nb\"\r\n"+ ]++encodeRawRowsSpec :: Spec+encodeRawRowsSpec = describe "encodeRawRows" $ do+ result <- BS.concat <$> runConduit+ (sourceList input .| encodeRawRows .| consume)+ it ("should be " ++ show expected) $+ result `shouldBe` expected+ where++ input =+ [ [ "foo", "a\"b" ]+ , [ "a\rb", "a\nb" ]+ ]++ expected = BS.concat+ [ "\"foo\",\"a\"\"b\"\r\n"+ , "\"a\rb\",\"a\nb\"\r\n"+ ]++labelFieldsSpec :: Spec+labelFieldsSpec = describe "labelFields" $ mapM_+ ( \(label, input, expected) -> context label $ do+ result <- runConduit $ sourceList input .| labelFields .| consume+ let+ expLen = length expected+ resLen = length result+ it ("should have " ++ show expLen ++ " rows") $+ resLen `shouldBe` expLen+ mapM_+ ( \(n, result', expected') -> context ("row " ++ show n) $+ it ("should be " ++ show expected') $+ result' `shouldBe` expected'+ ) $ zip3 [(0::Int)..] result expected+ )++ -- label, input, expected+ [ ( "empty", [], [] )+ , ( "no body", [headers], [] )+ , ( "with body", withBodyIn, withBodyRes )+ , ( "mixed cols", mixedColsIn, mixedColsRes )+ ]++ where+ headers = ["foo", "bar", "baz"] :: [String]++ withBodyIn = headers :+ [ ["a", "b", "c"]+ , ["d", "e", "f"]+ ] :: [[String]]++ mixedColsIn =+ [ ["foo", "bar"]+ , ["a"]+ , ["b", "c"]+ , ["d", "e", "f"]+ ] :: [[String]]++ withBodyRes = map M.fromList+ [ [("foo", "a"), ("bar", "b"), ("baz", "c")]+ , [("foo", "d"), ("bar", "e"), ("baz", "f")]+ ] :: [M.Map String String]++ mixedColsRes = map M.fromList+ [ [("foo", "a")]+ , [("foo", "b"), ("bar", "c")]+ , [("foo", "d"), ("bar", "e")]+ ] :: [M.Map String String]++decodeRowsSpec :: Spec+decodeRowsSpec = describe "decodeRows" $ mapM_+ ( \(label, input, expected) -> context label $ do+ result <- runConduit $ sourceList input .| decodeRows .| consume+ let+ expLen = length expected+ resLen = length result+ it ("should have " ++ show expLen ++ " rows") $+ resLen `shouldBe` expLen+ mapM_+ ( \(n, expected', result') -> context ("row " ++ show n) $+ it ("should be " ++ show expected') $+ result' `shouldBe` expected'+ ) $ zip3 [(0::Int)..] expected result+ )++ -- label, input, expected+ [ ( "valid", validIn, validRes )+ , ( "invalid", invalidIn, invalidRes )+ , ( "empty", [], [] )+ ]++ where+ validIn = ["foo,bar\r\n", "baz,quux\r\n"]+ invalidIn = ["\"a"]+ validRes = [["foo", "bar"], ["baz", "quux"]]+ invalidRes = [[""]]++decodeRawRowsSpec :: Spec+decodeRawRowsSpec = describe "decodeRawRows" $ mapM_+ ( \(label, input, expected) -> context label $ do+ result <- runConduit $ sourceList input .| decodeRawRows .| consume+ let+ expLen = length expected+ resLen = length result+ it ("should have " ++ show expLen ++ " rows") $+ resLen `shouldBe` expLen+ mapM_+ ( \(n, expected', result') -> context ("row " ++ show n) $+ it ("should be " ++ show result') $+ result' `shouldBe` expected'+ ) $ zip3 [(0::Int)..] expected result+ )++ -- label, input, expected+ [ ( "unquoted", unquotedIn, normalRes )+ , ( "quoted", quotedIn, normalRes )+ , ( "mixed", mixedIn, normalRes )+ , ( "CR only", crOnlyIn, normalRes )+ , ( "LF only", lfOnlyIn, normalRes )+ , ( "has quote", quoteIn, quoteRes )+ , ( "has CR", crIn, crRes )+ , ( "has LF", lfIn, lfRes )+ , ( "has CRLF", crlfIn, crlfRes )+ , ( "odd chunk", oddChunkIn, normalRes )+ , ( "no newline", noNewlineIn, normalRes )+ , ( "malformed", malformedIn, malformedRes )+ , ( "blank end", blankEndIn, blankEndRes )+ ]++ where++ unquotedIn =+ [ "foo,bar\r\n"+ , "baz,quux\r\n"+ ]++ quotedIn =+ [ "\"foo\",\"bar\"\r\n"+ , "\"baz\",\"quux\"\r\n"+ ]++ mixedIn =+ [ "\"foo\",bar\r\n"+ , "baz,\"quux\"\r\n"+ ]++ crOnlyIn =+ [ "foo,bar\r"+ , "baz,quux\r"+ ]++ lfOnlyIn =+ [ "foo,bar\n"+ , "baz,quux\n"+ ]++ quoteIn =+ [ "\"a\"\"b\",bar\r\n"+ , "baz,quux\r\n"+ ]++ crIn =+ [ "\"a\rb\",bar\r\n"+ , "baz,quux\r\n"+ ]++ lfIn =+ [ "\"a\nb\",bar\r\n"+ , "baz,quux\r\n"+ ]++ crlfIn =+ [ "\"a\r\nb\",bar\r\n"+ , "baz,quux\r\n"+ ]++ oddChunkIn =+ [ "foo,"+ , "bar\r\nbaz,"+ , "quux\r\n"+ ]++ noNewlineIn =+ [ "foo,bar\r\n"+ , "baz,quux"+ ]++ malformedIn =+ [ "a\"b,bar\r\n"+ , "baz,quux\r\n"+ ]++ blankEndIn =+ [ "foo,bar,\r\n"+ , "baz,quux\r\n"+ ]++ normalRes =+ [ ["foo", "bar"]+ , ["baz", "quux"]+ ]++ quoteRes =+ [ ["a\"b", "bar"]+ , ["baz", "quux"]+ ]++ crRes =+ [ ["a\rb", "bar"]+ , ["baz", "quux"]+ ]++ lfRes =+ [ ["a\nb", "bar"]+ , ["baz", "quux"]+ ]++ crlfRes =+ [ ["a\r\nb", "bar"]+ , ["baz", "quux"]+ ]++ malformedRes =+ [ ["", "bar"]+ , ["baz", "quux"]+ ]++ blankEndRes =+ [ ["foo", "bar", ""]+ , ["baz", "quux"]+ ]++decodeUTF8Spec :: Spec+decodeUTF8Spec = describe "decodeUTF8" $ mapM_+ ( \(label, input, expected) -> context label $+ it ("should be " ++ show expected) $+ decodeUTF8 input `shouldBe` expected+ )++ -- label, input, expected+ [ ( "plain ASCII", "hello", Just "hello" )+ , ( "valid UTF8", "\xc3\xa9", Just "é" )+ , ( "invalid UTF8", "\xff", Nothing )+ , ( "blank", "", Just "" )+ ]++toBytesSpec :: Spec+toBytesSpec = describe "toBytes" $ let+ input = ["ab", "cd"]+ expected = map (fromIntegral . ord) "abcd"+ in it ("should be " ++ show expected) $ do+ result <- runConduit $ sourceList input .| toBytes .| consume+ result `shouldBe` expected++--jl
+ test/Spec.hs view
@@ -0,0 +1,30 @@+{-++csv-sip+Copyright (C) Jonathan Lamothe <jonathan@jlamothe.net>++This program is free software: you can redistribute it and/or modify+it under the terms of the GNU General Public License as published by+the Free Software Foundation, either version 3 of the License, or (at+your option) any later version.++This program is distributed in the hope that it will be useful, but+WITHOUT ANY WARRANTY; without even the implied warranty of+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU+General Public License for more details.++You should have received a copy of the GNU General Public License+along with this program. If not, see <https://www.gnu.org/licenses/>.++-}++module Main where++import Test.Hspec (hspec)++import qualified Data.CSV.SipSpec as Sip++main :: IO ()+main = hspec Sip.spec++--jl