90 lines
3.0 KiB
Haskell
90 lines
3.0 KiB
Haskell
-- #!/usr/bin/env runhaskell
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{-# OPTIONS_GHC -cpp #-}
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{-|
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hledger - a ledger-compatible text-based accounting tool.
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Copyright (c) 2007-2009 Simon Michael <simon@joyful.com>
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Released under GPL version 3 or later.
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hledger is a haskell clone of John Wiegley's "ledger" text-based
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accounting tool (http://newartisans.com/software/ledger.html).
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It generates ledger-compatible register & balance reports from a plain
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text ledger file, and demonstrates a functional implementation of ledger.
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For more information, see hledger's home page: http://joyful.com/hledger
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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 <- ledgerfromfilewithopts [] [] "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
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> > register [] ["income","expenses"] l
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> 2008/01/01 income income:salary $-1 $-1
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> 2008/06/01 gift income:gifts $-1 $-2
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> 2008/06/03 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 Control.Monad.Error
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import qualified Data.Map as Map (lookup)
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import System.IO
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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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#ifdef VTY
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import qualified UICommand
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#endif
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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 versionmsg
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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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#ifdef VTY
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| cmd `isPrefixOf` "ui" = parseLedgerAndDo opts args UICommand.ui
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#endif
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| cmd `isPrefixOf` "test" = runtests opts 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 = do
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refdate <- today
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f <- ledgerFilePathFromOpts opts
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-- XXX we read the file twice - inelegant
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-- and, doesn't work with stdin. kludge it, stdin won't work with ui command
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let f' = if f == "-" then "/dev/null" else f
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rawtext <- readFile f'
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let runcmd = cmd opts args . prepareLedger opts args refdate rawtext
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return f >>= runErrorT . parseLedgerFile >>= either (hPutStrLn stderr) runcmd
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