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https://github.com/simonmichael/hledger.git
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95 lines
3.1 KiB
Haskell
95 lines
3.1 KiB
Haskell
{-|
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An 'Entry' represents a regular entry in the ledger file. It contains two
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or more 'RawTransaction's whose sum must be zero.
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-}
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module Ledger.Entry
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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.RawTransaction
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import Ledger.Amount
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instance Show Entry where show = showEntryDescription
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{-
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Helpers for the register report. A register entry is displayed as two
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or more lines like this:
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@
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date description account amount balance
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DDDDDDDDDD dddddddddddddddddddd aaaaaaaaaaaaaaaaaaaaaa AAAAAAAAAAA AAAAAAAAAAAA
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aaaaaaaaaaaaaaaaaaaaaa AAAAAAAAAAA AAAAAAAAAAAA
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... ... ...
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datewidth = 10
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descwidth = 20
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acctwidth = 22
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amtwidth = 11
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balwidth = 12
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@
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-}
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showEntryDescription e =
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(showDate $ edate e) ++ " " ++ (showDescription $ edescription e) ++ " "
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showDate d = printf "%-10s" d
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showDescription s = printf "%-20s" (elideRight 20 s)
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isEntryBalanced :: Entry -> Bool
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isEntryBalanced = isZeroAmount . sumLedgerTransactions . etransactions
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autofillEntry :: Entry -> Entry
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autofillEntry e@(Entry _ _ _ _ _ ts _) =
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let e' = e{etransactions=autofillTransactions ts} in
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case (isEntryBalanced e') of
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True -> e'
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False -> (error $ "transactions don't balance in " ++ show e)
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{-|
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Helper for the print command which shows cleaned up ledger file
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entries, something like:
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@
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yyyy/mm/dd[ *][ CODE] description......... [ ; comment...............]
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account name 1..................... ...$amount1[ ; comment...............]
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account name 2..................... ..$-amount1[ ; comment...............]
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pcodewidth = no limit -- 10
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pdescwidth = no limit -- 20
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pacctwidth = 35 minimum, no maximum
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pamtwidth = 11
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pcommentwidth = no limit -- 22
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@
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-}
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showEntry :: Entry -> String
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showEntry e =
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unlines $ [precedingcomment ++ description] ++ (showtxns $ etransactions e) ++ [""]
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where
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precedingcomment = epreceding_comment_lines e
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description = concat [date, status, code, desc] -- , comment]
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date = showDate $ edate e
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status = if estatus e then " *" else ""
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code = if (length $ ecode e) > 0 then (printf " (%s)" $ ecode e) else ""
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desc = " " ++ edescription e
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comment = if (length $ ecomment e) > 0 then " ; "++(ecomment e) else ""
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showtxns (t1:t2:[]) = [showtxn t1, showtxnnoamt t2]
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showtxns ts = map showtxn ts
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showtxn t = showacct t ++ " " ++ (showamount $ tamount t) ++ (showcomment $ tcomment t)
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showtxnnoamt t = showacct t ++ " " ++ (showcomment $ tcomment t)
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showacct t = " " ++ (showaccountname $ taccount t)
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showamount = printf "%12s" . showAmount
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showaccountname s = printf "%-34s" s
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showcomment s = if (length s) > 0 then " ; "++s else ""
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-- modifier & periodic entries
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instance Show ModifierEntry where
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show e = "= " ++ (valueexpr e) ++ "\n" ++ unlines (map show (m_transactions e))
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instance Show PeriodicEntry where
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show e = "~ " ++ (periodexpr e) ++ "\n" ++ unlines (map show (p_transactions e))
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