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lib: simplify fromRawNumber

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This commit is contained in:
Alex Chen 2018-05-26 22:54:31 -06:00 committed by Simon Michael
parent c3f5659d75
commit 1116261f5a
1 changed files with 13 additions and 9 deletions
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22
hledger-lib/Hledger/Read/Common.hs
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@ -691,21 +691,25 @@ fromRawNumber
fromRawNumber raw mExp = case raw of
NoSeparators digitGrp mDecimals ->
let decimalGrp = maybe mempty snd mDecimals
let mDecPt = fmap fst mDecimals
decimalGrp = maybe mempty snd mDecimals
(quantity, precision) =
maybe id applyExp mExp $ toQuantity digitGrp decimalGrp
in Right (quantity, precision, fmap fst mDecimals, Nothing)
in Right (quantity, precision, mDecPt, Nothing)
WithSeparators digitSep digitGrps mDecimals -> do
let decimalGrp = maybe mempty snd mDecimals
digitGroupStyle = DigitGroups digitSep (groupSizes digitGrps)
WithSeparators digitSep digitGrps mDecimals -> case mExp of
Nothing ->
let mDecPt = fmap fst mDecimals
decimalGrp = maybe mempty snd mDecimals
digitGroupStyle = DigitGroups digitSep (groupSizes digitGrps)
let errMsg = "mixing digit separators with exponents is not allowed"
(quantity, precision) <- maybe Right (const $ const $ Left errMsg) mExp
$ toQuantity (mconcat digitGrps) decimalGrp
(quantity, precision) = toQuantity (mconcat digitGrps) decimalGrp
Right (quantity, precision, fmap fst mDecimals, Just digitGroupStyle)
in Right (quantity, precision, mDecPt, Just digitGroupStyle)
Just _ ->
Left "mixing digit separators with exponents is not allowed"
where
-- Outputs digit group sizes from least significant to most significant