52 lines
1.5 KiB
Haskell
52 lines
1.5 KiB
Haskell
{-|
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A 'Posting' represents a 'MixedAmount' being added to or subtracted from a
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single 'Account'. Each 'LedgerTransaction' contains two or more postings
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which should add up to 0.
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Generally, we use these with the ledger transaction's date and description
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added, which we call a 'Transaction'.
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-}
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module Ledger.Posting
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where
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import Ledger.Utils
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import Ledger.Types
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import Ledger.Amount
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import Ledger.AccountName
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instance Show Posting where show = showPosting
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nullrawposting = Posting False "" nullmixedamt "" RegularPosting
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showPosting :: Posting -> String
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showPosting (Posting _ a amt _ ttype) =
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concatTopPadded [showaccountname a ++ " ", showamount amt]
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where
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showaccountname = printf "%-22s" . bracket . elideAccountName width
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(bracket,width) = case ttype of
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BalancedVirtualPosting -> (\s -> "["++s++"]", 20)
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VirtualPosting -> (\s -> "("++s++")", 20)
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_ -> (id,22)
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showamount = padleft 12 . showMixedAmountOrZero
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isReal :: Posting -> Bool
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isReal p = ptype p == RegularPosting
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isVirtual :: Posting -> Bool
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isVirtual p = ptype p == VirtualPosting
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isBalancedVirtual :: Posting -> Bool
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isBalancedVirtual p = ptype p == BalancedVirtualPosting
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hasAmount :: Posting -> Bool
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hasAmount = (/= missingamt) . pamount
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postingTypeFromAccountName a
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| head a == '[' && last a == ']' = BalancedVirtualPosting
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| head a == '(' && last a == ')' = VirtualPosting
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| otherwise = RegularPosting
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