53 lines
1.9 KiB
Haskell
53 lines
1.9 KiB
Haskell
{-|
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Utilities for top-level modules and/or ghci. See also "Ledger.Utils".
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-}
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module Utils
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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 Data.Time.Clock
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import Text.ParserCombinators.Parsec
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import System.IO
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import Options
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import Ledger
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-- | Convert a RawLedger to a canonicalised, cached and filtered Ledger
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-- based on the command-line options/arguments and the current date/time.
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prepareLedger :: [Opt] -> [String] -> UTCTime -> String -> RawLedger -> Ledger
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prepareLedger opts args reftime rawtext rl = l{rawledgertext=rawtext}
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where
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l = cacheLedger apats $ filterRawLedger span dpats c r $ canonicaliseAmounts cb rl
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(apats,dpats) = parseAccountDescriptionArgs [] args
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span = dateSpanFromOpts (utctDay reftime) opts
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c = Cleared `elem` opts
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r = Real `elem` opts
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cb = CostBasis `elem` opts
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-- | Get a RawLedger from the given string, or raise an error.
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rawledgerfromstring :: String -> IO RawLedger
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rawledgerfromstring = liftM (either error id) . runErrorT . parseLedger "(string)"
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-- | Get a Ledger from the given string and options, or raise an error.
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ledgerfromstringwithopts :: [Opt] -> [String] -> UTCTime -> String -> IO Ledger
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ledgerfromstringwithopts opts args reftime s =
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liftM (prepareLedger opts args reftime s) $ rawledgerfromstring s
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-- | Get a Ledger from the given file path and options, or raise an error.
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ledgerfromfilewithopts :: [Opt] -> [String] -> FilePath -> IO Ledger
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ledgerfromfilewithopts opts args f = do
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s <- readFile f
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rl <- rawledgerfromstring s
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reftime <- getCurrentTime
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return $ prepareLedger opts args reftime s rl
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-- | Get a Ledger from your default ledger file, or raise an error.
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-- Assumes no options.
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myledger :: IO Ledger
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myledger = ledgerFilePathFromOpts [] >>= ledgerfromfilewithopts [] []
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parseWithCtx :: GenParser Char LedgerFileCtx a -> String -> Either ParseError a
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parseWithCtx p ts = runParser p emptyCtx "" ts |