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Data.String.Interpolate.IsString doesn't support Unicode #14

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williamyaoh opened this issue Mar 9, 2019 · 0 comments

williamyaoh commented Mar 9, 2019

Interpolating a String/Text into a ByteString results in each character getting truncated to a single byte:

-- lts-13.7
λ> t = "一生懸命" :: Text
λ> b = [i|#{t}|] :: ByteString
λ> b
 => "\NUL\US\248}"

Unfortunately, this truncation seems to be happening within ByteString's IsString instance.

thomasjm mentioned this issue

Surprising behavior of ByteString literals via IsString haskell/bytestring#140

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