78 lines
2.6 KiB
Haskell
78 lines
2.6 KiB
Haskell
#!/usr/bin/env runhaskell
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{-|
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hledger - a ledger-compatible text-based accounting tool.
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Copyright (c) 2007-2008 Simon Michael <simon@joyful.com>
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Released under GPL version 3 or later.
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This is a minimal haskell clone of John Wiegley's ledger
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<http://newartisans.com/software/ledger.html>. hledger generates
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simple ledger-compatible register & balance reports from a plain text
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ledger file, and demonstrates a functional implementation of ledger.
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You can use the command line:
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> $ hledger --help
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or ghci:
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> $ ghci hledger
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> > l <- ledgerfromfile "sample.ledger"
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> > balance [] [] l
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> $-1 assets
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> $2 expenses
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> $-2 income
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> $1 liabilities:debts
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> > register [] ["income","expenses"] l
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> 2007/01/01 income income:salary $-1 $-1
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> 2007/01/01 gift income:gifts $-1 $-2
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> 2007/01/01 eat & shop expenses:food $1 $-1
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> expenses:supplies $1 0
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-}
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module Main (
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module Main,
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module Utils,
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module Options,
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module BalanceCommand,
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module PrintCommand,
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module RegisterCommand,
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)
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where
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import qualified Data.Map as Map (lookup)
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import Ledger
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import Utils
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import Options
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import BalanceCommand
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import PrintCommand
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import RegisterCommand
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import Tests
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main :: IO ()
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main = do
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(opts, cmd, args) <- parseArguments
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run cmd opts args
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where
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run cmd opts args
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| Help `elem` opts = putStr usage
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| Version `elem` opts = putStr version
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| cmd `isPrefixOf` "balance" = parseLedgerAndDo opts args balance
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| cmd `isPrefixOf` "print" = parseLedgerAndDo opts args print'
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| cmd `isPrefixOf` "register" = parseLedgerAndDo opts args register
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| cmd `isPrefixOf` "test" = runtests args >> return ()
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| otherwise = putStr usage
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-- | parse the user's specified ledger file and do some action with it
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-- (or report a parse error). This function makes the whole thing go.
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parseLedgerAndDo :: [Opt] -> [String] -> ([Opt] -> [String] -> Ledger -> IO ()) -> IO ()
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parseLedgerAndDo opts args cmd =
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ledgerFilePathFromOpts opts >>= parseLedgerFile >>= either printParseError runthecommand
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where
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runthecommand = cmd opts args . cacheLedger . normaliseRawLedgerAmounts . filterRawLedger begin end descpats
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begin = beginDateFromOpts opts
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end = endDateFromOpts opts
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descpats = snd $ parseAccountDescriptionArgs args
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