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99 lines
2.6 KiB
Haskell
99 lines
2.6 KiB
Haskell
{-
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hledger - ledger-compatible money management tool (& haskell study)
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GPLv3, (c) Simon Michael & contributors
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inspired by John Wiegley's ledger at http://newartisans.com/ledger.html
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modules/models are organized roughly like this; each layer can only
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reference things below it:
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hledger
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Options
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Tests
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Parse
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Models
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TimeLog
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TimeLogEntry
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Account
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Ledger
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EntryTransaction
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Entry
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Transaction
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AccountName
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Amount
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BasicTypes
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Utils
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-}
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module Main
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where
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import System
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import Text.ParserCombinators.Parsec (ParseError)
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import Options
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import Models
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import Parse
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import Tests
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import Utils
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main :: IO ()
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main = do
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(opts, (cmd:args)) <- getArgs >>= parseOptions
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let (acctpats, descpats) = parseLedgerPatternArgs args
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run cmd opts acctpats descpats
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where run cmd opts acctpats descpats
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| cmd `isPrefixOf` "register" = register opts acctpats descpats
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| cmd `isPrefixOf` "balance" = balance opts acctpats descpats
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| cmd `isPrefixOf` "test" = selftest
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| otherwise = putStr usage
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-- commands
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register :: [Flag] -> [String] -> [String] -> IO ()
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register opts acctpats descpats = do
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doWithLedger opts printRegister
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where
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printRegister ledger =
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putStr $ showTransactionsWithBalances
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(ledgerTransactionsMatching (acctpats,descpats) ledger)
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0
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balance :: [Flag] -> [String] -> [String] -> IO ()
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balance opts acctpats _ = do
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doWithLedger opts printBalance
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where
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printBalance ledger =
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putStr $ showLedgerAccounts ledger acctpats showsubs maxdepth
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where
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showsubs = (ShowSubs `elem` opts)
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maxdepth = case (acctpats, showsubs) of
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([],False) -> 1
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otherwise -> 9999
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selftest :: IO ()
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selftest = do
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Tests.tests
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Tests.props
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-- Amount.tests
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return ()
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-- utils
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doWithLedger :: [Flag] -> (Ledger -> IO ()) -> IO ()
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doWithLedger opts cmd = do
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ledgerFilePath opts >>= parseLedgerFile >>= doWithParsed cmd
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doWithParsed :: Show a => (a -> IO ()) -> (Either ParseError a) -> IO ()
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doWithParsed action parsed = do
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case parsed of Left e -> parseError e
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Right l -> action l
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-- interactive testing:
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--
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-- p <- ledgerFilePath [] >>= parseLedgerFile
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-- let l = either (\_ -> Ledger [] [] []) id p
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-- let ant = ledgerAccountNameTree l
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-- let at = ledgerAccountTreeMatching l [] True 999
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-- putStr $ drawTree $ treemap show $ ledgerAccountTreeMatching l ["a"] False 999
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