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lib: Implement showAmountHelper using AmountBuilder.

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This commit is contained in:
Stephen Morgan 2020-12-22 13:52:04 +11:00
parent 5dedec83da
commit c86e8a9794
1 changed files with 16 additions and 15 deletions
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31
hledger-lib/Hledger/Data/Amount.hs
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@ -327,10 +327,10 @@ setAmountDecimalPoint mc a@Amount{ astyle=s } = a{ astyle=s{asdecimalpoint=mc} }
withDecimalPoint :: Amount -> Maybe Char -> Amount
withDecimalPoint = flip setAmountDecimalPoint
showAmountPrice :: Maybe AmountPrice -> String
showAmountPrice Nothing = ""
showAmountPrice (Just (UnitPrice pa)) = " @ " ++ showAmount pa
showAmountPrice (Just (TotalPrice pa)) = " @@ " ++ showAmount pa
showAmountPrice :: Maybe AmountPrice -> WideBuilder
showAmountPrice Nothing = mempty
showAmountPrice (Just (UnitPrice pa)) = WideBuilder (TB.fromString " @ ") 3 <> showAmountHelper False pa
showAmountPrice (Just (TotalPrice pa)) = WideBuilder (TB.fromString " @@ ") 4 <> showAmountHelper False pa
showAmountPriceDebug :: Maybe AmountPrice -> String
showAmountPriceDebug Nothing = ""
@ -362,13 +362,13 @@ amountUnstyled a = a{astyle=amountstyle}
-- zero are converted to just \"0\". The special "missing" amount is
-- displayed as the empty string.
showAmount :: Amount -> String
showAmount = showAmountHelper False
showAmount = wbUnpack . showAmountHelper False
-- | Colour version. For a negative amount, adds ANSI codes to change the colour,
-- currently to hard-coded red.
cshowAmount :: Amount -> String
cshowAmount a = (if isNegativeAmount a then color Dull Red else id) $
showAmountHelper False a
cshowAmount a = (if isNegativeAmount a then color Dull Red else id) . wbUnpack
$ showAmountHelper False a
-- | Get the string representation of an amount, without any \@ price.
showAmountWithoutPrice :: Amount -> String
@ -379,22 +379,23 @@ showAmountWithoutPrice a = showAmount a{aprice=Nothing}
showAmountWithPrecision :: AmountPrecision -> Amount -> String
showAmountWithPrecision p = showAmount . setAmountPrecision p
showAmountHelper :: Bool -> Amount -> String
showAmountHelper _ Amount{acommodity="AUTO"} = ""
showAmountHelper :: Bool -> Amount -> WideBuilder
showAmountHelper _ Amount{acommodity="AUTO"} = mempty
showAmountHelper showzerocommodity a@Amount{acommodity=c, aprice=mp, astyle=AmountStyle{..}} =
case ascommodityside of
L -> printf "%s%s%s%s" (T.unpack c') space quantity' price
R -> printf "%s%s%s%s" quantity' space (T.unpack c') price
L -> c'' <> space <> quantity' <> price
R -> quantity' <> space <> c'' <> price
where
quantity = wbUnpack $ showamountquantity a
(quantity',c') | amountLooksZero a && not showzerocommodity = ("0","")
quantity = showamountquantity a
(quantity',c') | amountLooksZero a && not showzerocommodity = (WideBuilder (TB.singleton '0') 1,"")
| otherwise = (quantity, quoteCommoditySymbolIfNeeded c)
space = if not (T.null c') && ascommodityspaced then " " else "" :: String
space = if not (T.null c') && ascommodityspaced then WideBuilder (TB.singleton ' ') 1 else mempty
c'' = WideBuilder (TB.fromText c') (textWidth c')
price = showAmountPrice mp
-- | Like showAmount, but show a zero amount's commodity if it has one.
showAmountWithZeroCommodity :: Amount -> String
showAmountWithZeroCommodity = showAmountHelper True
showAmountWithZeroCommodity = wbUnpack . showAmountHelper True
-- | Get a string representation of an amount for debugging,
-- appropriate to the current debug level. 9 shows maximum detail.