53 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
			
		
		
	
	
			53 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
| {-|
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| 
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| Utilities for top-level modules and/or ghci. See also "Ledger.Utils".
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| 
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| -}
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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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| 
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| 
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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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| 
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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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| 
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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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| 
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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 <- now
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|   return $ prepareLedger opts args reftime s rl
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|            
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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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| 
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| parseWithCtx :: GenParser Char LedgerFileCtx a -> String -> Either ParseError a
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| parseWithCtx p ts = runParser p emptyCtx "" ts |