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Fixes #138 #139

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Merged
mchav merged 4 commits into from
Jan 24, 2026
Merged

Fixes #138 #139

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5c64817
fix `writeCsv` for `OptionalColumn` writing `Maybe a` values instead…
mcoady Jan 21, 2026
d0f6b5a
replace use of `Text.show` and handle `OptionalColumn` of `Maybe Text…
mcoady Jan 21, 2026
090f223
Merge branch 'mchav:main' into main
mcoady Jan 22, 2026
6293c7f
strip UTF8 BOM when reading csv file
mcoady Jan 23, 2026
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3 changes: 2 additions & 1 deletion src/DataFrame/IO/CSV.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -236,7 +236,8 @@ ghci> D.readSeparated (D.defaultReadOptions { columnSeparator = ';' }) ".\/data\
readSeparated :: ReadOptions -> FilePath -> IO DataFrame
readSeparated !opts !path = do
let sep = columnSeparator opts
csvData <- BL.readFile path
let stripUtf8Bom bs = fromMaybe bs (BL.stripPrefix "\xEF\xBB\xBF" bs)
csvData <- stripUtf8Bom <$> BL.readFile path
let decodeOpts = Csv.defaultDecodeOptions{Csv.decDelimiter = fromIntegral (ord sep)}
let stream = CsvStream.decodeWith decodeOpts Csv.NoHeader csvData

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