hledger/hledger-lib/Hledger/Data/Journal.hs
Simon Michael 0f5ee154c4 lib: simplify parsers; cleanups (#275)
The journal/timeclock/timedot parsers, instead of constructing (opaque)
journal update functions which are later applied to build the journal,
now construct the journal directly (by modifying the parser state). This
is easier to understand and debug. It also removes any possibility of
the journal updates being a space leak. (They weren't, in fact memory
usage is now slightly higher, but that will be addressed in other ways.)

Also:

Journal data and journal parse info have been merged into one type (for
now), and field names are more consistent.

The ParsedJournal type alias has been added to distinguish being-parsed
and finalised journals.

Journal is now a monoid.

stats: fixed an issue with ordering of include files

journal: fixed an issue with ordering of included same-date transactions

timeclock: sessions can no longer span file boundaries (unclocked-out
sessions will be auto-closed at the end of the file).

expandPath now throws a proper IO error (and requires the IO monad).
2016-05-23 00:44:19 -07:00

863 lines
37 KiB
Haskell

{-# LANGUAGE StandaloneDeriving #-}
{-|
A 'Journal' is a set of transactions, plus optional related data. This is
hledger's primary data object. It is usually parsed from a journal file or
other data format (see "Hledger.Read").
-}
module Hledger.Data.Journal (
-- * Parsing helpers
addMarketPrice,
addModifierTransaction,
addPeriodicTransaction,
addTransaction,
journalApplyAliases,
journalBalanceTransactions,
journalApplyCommodityStyles,
commodityStylesFromAmounts,
journalConvertAmountsToCost,
journalFinalise,
-- * Filtering
filterJournalTransactions,
filterJournalPostings,
filterJournalAmounts,
filterTransactionAmounts,
filterPostingAmount,
-- * Querying
journalAccountNames,
journalAccountNamesUsed,
-- journalAmountAndPriceCommodities,
journalAmounts,
-- journalCanonicalCommodities,
journalDateSpan,
journalDescriptions,
journalFilePath,
journalFilePaths,
journalTransactionAt,
journalNextTransaction,
journalPrevTransaction,
journalPostings,
-- * Standard account types
journalBalanceSheetAccountQuery,
journalProfitAndLossAccountQuery,
journalIncomeAccountQuery,
journalExpenseAccountQuery,
journalAssetAccountQuery,
journalLiabilityAccountQuery,
journalEquityAccountQuery,
journalCashAccountQuery,
-- * Misc
canonicalStyleFrom,
matchpats,
nulljournal,
-- * Tests
samplejournal,
tests_Hledger_Data_Journal,
)
where
import Control.Monad
import Data.List
-- import Data.Map (findWithDefault)
import Data.Maybe
import Data.Monoid
import Data.Ord
import Safe (headMay, headDef)
import Data.Time.Calendar
import Data.Tree
import System.Time (ClockTime(TOD))
import Test.HUnit
import Text.Printf
import qualified Data.Map as M
import Hledger.Utils
import Hledger.Data.Types
import Hledger.Data.AccountName
import Hledger.Data.Amount
-- import Hledger.Data.Commodity
import Hledger.Data.Dates
import Hledger.Data.Transaction
import Hledger.Data.Posting
import Hledger.Query
-- try to make Journal ppShow-compatible
-- instance Show ClockTime where
-- show t = "<ClockTime>"
-- deriving instance Show Journal
instance Show Journal where
show j
| debugLevel < 3 = printf "Journal %s with %d transactions, %d accounts"
(journalFilePath j)
(length (jtxns j) +
length (jmodifiertxns j) +
length (jperiodictxns j))
(length accounts)
| debugLevel < 6 = printf "Journal %s with %d transactions, %d accounts: %s"
(journalFilePath j)
(length (jtxns j) +
length (jmodifiertxns j) +
length (jperiodictxns j))
(length accounts)
(show accounts)
| otherwise = printf "Journal %s with %d transactions, %d accounts: %s, commodity styles: %s"
(journalFilePath j)
(length (jtxns j) +
length (jmodifiertxns j) +
length (jperiodictxns j))
(length accounts)
(show accounts)
(show $ jinferredcommodities j)
-- ++ (show $ journalTransactions l)
where accounts = filter (/= "root") $ flatten $ journalAccountNameTree j
-- showJournalDebug j = unlines [
-- show j
-- ,show (jtxns j)
-- ,show (jmodifiertxns j)
-- ,show (jperiodictxns j)
-- ,show $ jparsetimeclockentries j
-- ,show $ jmarketprices j
-- ,show $ jfinalcommentlines j
-- ,show $ jparsestate j
-- ,show $ map fst $ jfiles j
-- ]
-- The monoid instance for Journal is useful for two situations.
--
-- 1. concatenating finalised journals, eg with multiple -f options:
-- FIRST <> SECOND. The second's list fields are appended to the
-- first's, map fields are combined, transaction counts are summed,
-- the parse state of the second is kept.
--
-- 2. merging a child parsed journal, eg with the include directive:
-- CHILD <> PARENT. A parsed journal's data is in reverse order, so
-- this gives what we want.
--
instance Monoid Journal where
mempty = nulljournal
mappend j1 j2 = Journal {
jparsedefaultyear = jparsedefaultyear j2
,jparsedefaultcommodity = jparsedefaultcommodity j2
,jparseparentaccounts = jparseparentaccounts j2
,jparsealiases = jparsealiases j2
,jparsetransactioncount = jparsetransactioncount j1 + jparsetransactioncount j2
,jparsetimeclockentries = jparsetimeclockentries j1 <> jparsetimeclockentries j2
,jaccounts = jaccounts j1 <> jaccounts j2
,jcommodities = jcommodities j1 <> jcommodities j2
,jinferredcommodities = jinferredcommodities j1 <> jinferredcommodities j2
,jmarketprices = jmarketprices j1 <> jmarketprices j2
,jmodifiertxns = jmodifiertxns j1 <> jmodifiertxns j2
,jperiodictxns = jperiodictxns j1 <> jperiodictxns j2
,jtxns = jtxns j1 <> jtxns j2
,jfinalcommentlines = jfinalcommentlines j2
,jfiles = jfiles j1 <> jfiles j2
,jlastreadtime = max (jlastreadtime j1) (jlastreadtime j2)
}
nulljournal :: Journal
nulljournal = Journal {
jparsedefaultyear = Nothing
,jparsedefaultcommodity = Nothing
,jparseparentaccounts = []
,jparsealiases = []
,jparsetransactioncount = 0
,jparsetimeclockentries = []
,jaccounts = []
,jcommodities = M.fromList []
,jinferredcommodities = M.fromList []
,jmarketprices = []
,jmodifiertxns = []
,jperiodictxns = []
,jtxns = []
,jfinalcommentlines = []
,jfiles = []
,jlastreadtime = TOD 0 0
}
journalFilePath :: Journal -> FilePath
journalFilePath = fst . mainfile
journalFilePaths :: Journal -> [FilePath]
journalFilePaths = map fst . jfiles
mainfile :: Journal -> (FilePath, String)
mainfile = headDef ("", "") . jfiles
addTransaction :: Transaction -> Journal -> Journal
addTransaction t j = j { jtxns = t : jtxns j }
addModifierTransaction :: ModifierTransaction -> Journal -> Journal
addModifierTransaction mt j = j { jmodifiertxns = mt : jmodifiertxns j }
addPeriodicTransaction :: PeriodicTransaction -> Journal -> Journal
addPeriodicTransaction pt j = j { jperiodictxns = pt : jperiodictxns j }
addMarketPrice :: MarketPrice -> Journal -> Journal
addMarketPrice h j = j { jmarketprices = h : jmarketprices j }
-- | Get the transaction with this index (its 1-based position in the input stream), if any.
journalTransactionAt :: Journal -> Integer -> Maybe Transaction
journalTransactionAt Journal{jtxns=ts} i =
-- it's probably ts !! (i+1), but we won't assume
headMay [t | t <- ts, tindex t == i]
-- | Get the transaction that appeared immediately after this one in the input stream, if any.
journalNextTransaction :: Journal -> Transaction -> Maybe Transaction
journalNextTransaction j t = journalTransactionAt j (tindex t + 1)
-- | Get the transaction that appeared immediately before this one in the input stream, if any.
journalPrevTransaction :: Journal -> Transaction -> Maybe Transaction
journalPrevTransaction j t = journalTransactionAt j (tindex t - 1)
-- | Unique transaction descriptions used in this journal.
journalDescriptions :: Journal -> [String]
journalDescriptions = nub . sort . map tdescription . jtxns
-- | All postings from this journal's transactions, in order.
journalPostings :: Journal -> [Posting]
journalPostings = concatMap tpostings . jtxns
-- | Unique account names posted to in this journal.
journalAccountNamesUsed :: Journal -> [AccountName]
journalAccountNamesUsed = sort . accountNamesFromPostings . journalPostings
-- | Unique account names in this journal, including parent accounts containing no postings.
journalAccountNames :: Journal -> [AccountName]
journalAccountNames = sort . expandAccountNames . journalAccountNamesUsed
journalAccountNameTree :: Journal -> Tree AccountName
journalAccountNameTree = accountNameTreeFrom . journalAccountNames
-- standard account types
-- | A query for Profit & Loss accounts in this journal.
-- Cf <http://en.wikipedia.org/wiki/Chart_of_accounts#Profit_.26_Loss_accounts>.
journalProfitAndLossAccountQuery :: Journal -> Query
journalProfitAndLossAccountQuery j = Or [journalIncomeAccountQuery j
,journalExpenseAccountQuery j
]
-- | A query for Income (Revenue) accounts in this journal.
-- This is currently hard-coded to the case-insensitive regex @^(income|revenue)s?(:|$)@.
journalIncomeAccountQuery :: Journal -> Query
journalIncomeAccountQuery _ = Acct "^(income|revenue)s?(:|$)"
-- | A query for Expense accounts in this journal.
-- This is currently hard-coded to the case-insensitive regex @^expenses?(:|$)@.
journalExpenseAccountQuery :: Journal -> Query
journalExpenseAccountQuery _ = Acct "^expenses?(:|$)"
-- | A query for Asset, Liability & Equity accounts in this journal.
-- Cf <http://en.wikipedia.org/wiki/Chart_of_accounts#Balance_Sheet_Accounts>.
journalBalanceSheetAccountQuery :: Journal -> Query
journalBalanceSheetAccountQuery j = Or [journalAssetAccountQuery j
,journalLiabilityAccountQuery j
,journalEquityAccountQuery j
]
-- | A query for Asset accounts in this journal.
-- This is currently hard-coded to the case-insensitive regex @^assets?(:|$)@.
journalAssetAccountQuery :: Journal -> Query
journalAssetAccountQuery _ = Acct "^assets?(:|$)"
-- | A query for Liability accounts in this journal.
-- This is currently hard-coded to the case-insensitive regex @^(debts?|liabilit(y|ies))(:|$)@.
journalLiabilityAccountQuery :: Journal -> Query
journalLiabilityAccountQuery _ = Acct "^(debts?|liabilit(y|ies))(:|$)"
-- | A query for Equity accounts in this journal.
-- This is currently hard-coded to the case-insensitive regex @^equity(:|$)@.
journalEquityAccountQuery :: Journal -> Query
journalEquityAccountQuery _ = Acct "^equity(:|$)"
-- | A query for Cash (-equivalent) accounts in this journal (ie,
-- accounts which appear on the cashflow statement.) This is currently
-- hard-coded to be all the Asset accounts except for those containing the
-- case-insensitive regex @(receivable|A/R)@.
journalCashAccountQuery :: Journal -> Query
journalCashAccountQuery j = And [journalAssetAccountQuery j, Not $ Acct "(receivable|A/R)"]
-- Various kinds of filtering on journals. We do it differently depending
-- on the command.
-------------------------------------------------------------------------------
-- filtering V2
-- | Keep only transactions matching the query expression.
filterJournalTransactions :: Query -> Journal -> Journal
filterJournalTransactions q j@Journal{jtxns=ts} = j{jtxns=filter (q `matchesTransaction`) ts}
-- | Keep only postings matching the query expression.
-- This can leave unbalanced transactions.
filterJournalPostings :: Query -> Journal -> Journal
filterJournalPostings q j@Journal{jtxns=ts} = j{jtxns=map filtertransactionpostings ts}
where
filtertransactionpostings t@Transaction{tpostings=ps} = t{tpostings=filter (q `matchesPosting`) ps}
-- | Within each posting's amount, keep only the parts matching the query.
-- This can leave unbalanced transactions.
filterJournalAmounts :: Query -> Journal -> Journal
filterJournalAmounts q j@Journal{jtxns=ts} = j{jtxns=map (filterTransactionAmounts q) ts}
-- | Filter out all parts of this transaction's amounts which do not match the query.
-- This can leave the transaction unbalanced.
filterTransactionAmounts :: Query -> Transaction -> Transaction
filterTransactionAmounts q t@Transaction{tpostings=ps} = t{tpostings=map (filterPostingAmount q) ps}
-- | Filter out all parts of this posting's amount which do not match the query.
filterPostingAmount :: Query -> Posting -> Posting
filterPostingAmount q p@Posting{pamount=Mixed as} = p{pamount=Mixed $ filter (q `matchesAmount`) as}
{-
-------------------------------------------------------------------------------
-- filtering V1
-- | Keep only transactions we are interested in, as described by the
-- filter specification.
filterJournalTransactions :: FilterSpec -> Journal -> Journal
filterJournalTransactions FilterSpec{datespan=datespan
,cleared=cleared
-- ,real=real
-- ,empty=empty
,acctpats=apats
,descpats=dpats
,depth=depth
,fMetadata=md
} =
filterJournalTransactionsByClearedStatus cleared .
filterJournalPostingsByDepth depth .
filterJournalTransactionsByAccount apats .
filterJournalTransactionsByMetadata md .
filterJournalTransactionsByDescription dpats .
filterJournalTransactionsByDate datespan
-- | Keep only postings we are interested in, as described by the filter
-- specification. This can leave unbalanced transactions.
filterJournalPostings :: FilterSpec -> Journal -> Journal
filterJournalPostings FilterSpec{datespan=datespan
,cleared=cleared
,real=real
,empty=empty
,acctpats=apats
,descpats=dpats
,depth=depth
,fMetadata=md
} =
filterJournalPostingsByRealness real .
filterJournalPostingsByClearedStatus cleared .
filterJournalPostingsByEmpty empty .
filterJournalPostingsByDepth depth .
filterJournalPostingsByAccount apats .
filterJournalTransactionsByMetadata md .
filterJournalTransactionsByDescription dpats .
filterJournalTransactionsByDate datespan
-- | Keep only transactions whose metadata matches all metadata specifications.
filterJournalTransactionsByMetadata :: [(String,String)] -> Journal -> Journal
filterJournalTransactionsByMetadata pats j@Journal{jtxns=ts} = j{jtxns=filter matchmd ts}
where matchmd t = all (`elem` tmetadata t) pats
-- | Keep only transactions whose description matches the description patterns.
filterJournalTransactionsByDescription :: [String] -> Journal -> Journal
filterJournalTransactionsByDescription pats j@Journal{jtxns=ts} = j{jtxns=filter matchdesc ts}
where matchdesc = matchpats pats . tdescription
-- | Keep only transactions which fall between begin and end dates.
-- We include transactions on the begin date and exclude transactions on the end
-- date, like ledger. An empty date string means no restriction.
filterJournalTransactionsByDate :: DateSpan -> Journal -> Journal
filterJournalTransactionsByDate (DateSpan begin end) j@Journal{jtxns=ts} = j{jtxns=filter match ts}
where match t = maybe True (tdate t>=) begin && maybe True (tdate t<) end
-- | Keep only transactions which have the requested cleared/uncleared
-- status, if there is one.
filterJournalTransactionsByClearedStatus :: Maybe Bool -> Journal -> Journal
filterJournalTransactionsByClearedStatus Nothing j = j
filterJournalTransactionsByClearedStatus (Just val) j@Journal{jtxns=ts} = j{jtxns=filter match ts}
where match = (==val).tstatus
-- | Keep only postings which have the requested cleared/uncleared status,
-- if there is one.
filterJournalPostingsByClearedStatus :: Maybe Bool -> Journal -> Journal
filterJournalPostingsByClearedStatus Nothing j = j
filterJournalPostingsByClearedStatus (Just c) j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter ((==c) . postingCleared) ps}
-- | Strip out any virtual postings, if the flag is true, otherwise do
-- no filtering.
filterJournalPostingsByRealness :: Bool -> Journal -> Journal
filterJournalPostingsByRealness False j = j
filterJournalPostingsByRealness True j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter isReal ps}
-- | Strip out any postings with zero amount, unless the flag is true.
filterJournalPostingsByEmpty :: Bool -> Journal -> Journal
filterJournalPostingsByEmpty True j = j
filterJournalPostingsByEmpty False j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter (not . isEmptyPosting) ps}
-- -- | Keep only transactions which affect accounts deeper than the specified depth.
-- filterJournalTransactionsByDepth :: Maybe Int -> Journal -> Journal
-- filterJournalTransactionsByDepth Nothing j = j
-- filterJournalTransactionsByDepth (Just d) j@Journal{jtxns=ts} =
-- j{jtxns=(filter (any ((<= d+1) . accountNameLevel . paccount) . tpostings) ts)}
-- | Strip out any postings to accounts deeper than the specified depth
-- (and any transactions which have no postings as a result).
filterJournalPostingsByDepth :: Maybe Int -> Journal -> Journal
filterJournalPostingsByDepth Nothing j = j
filterJournalPostingsByDepth (Just d) j@Journal{jtxns=ts} =
j{jtxns=filter (not . null . tpostings) $ map filtertxns ts}
where filtertxns t@Transaction{tpostings=ps} =
t{tpostings=filter ((<= d) . accountNameLevel . paccount) ps}
-- | Keep only postings which affect accounts matched by the account patterns.
-- This can leave transactions unbalanced.
filterJournalPostingsByAccount :: [String] -> Journal -> Journal
filterJournalPostingsByAccount apats j@Journal{jtxns=ts} = j{jtxns=map filterpostings ts}
where filterpostings t@Transaction{tpostings=ps} = t{tpostings=filter (matchpats apats . paccount) ps}
-- | Keep only transactions which affect accounts matched by the account patterns.
-- More precisely: each positive account pattern excludes transactions
-- which do not contain a posting to a matched account, and each negative
-- account pattern excludes transactions containing a posting to a matched
-- account.
filterJournalTransactionsByAccount :: [String] -> Journal -> Journal
filterJournalTransactionsByAccount apats j@Journal{jtxns=ts} = j{jtxns=filter tmatch ts}
where
tmatch t = (null positives || any positivepmatch ps) && (null negatives || not (any negativepmatch ps)) where ps = tpostings t
positivepmatch p = any (`amatch` a) positives where a = paccount p
negativepmatch p = any (`amatch` a) negatives where a = paccount p
amatch pat a = regexMatchesCI (abspat pat) a
(negatives,positives) = partition isnegativepat apats
-}
-- | Apply additional account aliases (eg from the command-line) to all postings in a journal.
journalApplyAliases :: [AccountAlias] -> Journal -> Journal
journalApplyAliases aliases j@Journal{jtxns=ts} =
-- (if null aliases
-- then id
-- else (dbgtrace $
-- "applying additional command-line aliases:\n"
-- ++ chomp (unlines $ map (" "++) $ lines $ ppShow aliases))) $
j{jtxns=map dotransaction ts}
where
dotransaction t@Transaction{tpostings=ps} = t{tpostings=map doposting ps}
doposting p@Posting{paccount=a} = p{paccount= accountNameApplyAliases aliases a}
-- | Do post-parse processing on a parsed journal to make it ready for
-- use. Reverse parsed data to normal order, canonicalise amount
-- formats, check/ensure that transactions are balanced, and maybe
-- check balance assertions.
journalFinalise :: ClockTime -> FilePath -> String -> Bool -> ParsedJournal -> Either String Journal
journalFinalise t path txt assrt j@Journal{jfiles=fs} = do
(journalBalanceTransactions $
journalApplyCommodityStyles $
j{ jfiles = (path,txt) : reverse fs
, jlastreadtime = t
, jtxns = reverse $ jtxns j -- NOTE: see addTransaction
, jmodifiertxns = reverse $ jmodifiertxns j -- NOTE: see addModifierTransaction
, jperiodictxns = reverse $ jperiodictxns j -- NOTE: see addPeriodicTransaction
, jmarketprices = reverse $ jmarketprices j -- NOTE: see addMarketPrice
})
>>= if assrt then journalCheckBalanceAssertions else return
-- | Check any balance assertions in the journal and return an error
-- message if any of them fail.
journalCheckBalanceAssertions :: Journal -> Either String Journal
journalCheckBalanceAssertions j = do
let postingsByAccount = groupBy (\p1 p2 -> paccount p1 == paccount p2) $
sortBy (comparing paccount) $
journalPostings j
forM_ postingsByAccount checkBalanceAssertionsForAccount
Right j
-- Check any balance assertions in this sequence of postings to a single account.
checkBalanceAssertionsForAccount :: [Posting] -> Either String ()
checkBalanceAssertionsForAccount ps
| null errs = Right ()
| otherwise = Left $ head errs
where
errs = fst $
foldl' checkBalanceAssertion ([],nullmixedamt) $
splitAssertions $
sortBy (comparing postingDate) ps
-- Given a starting balance, accumulated errors, and a non-null sequence of
-- postings to a single account with a balance assertion in the last:
-- check that the final balance matches the balance assertion.
-- If it does, return the new balance, otherwise add an error to the
-- error list. Intended to be called from a fold.
checkBalanceAssertion :: ([String],MixedAmount) -> [Posting] -> ([String],MixedAmount)
checkBalanceAssertion (errs,startbal) ps
| null ps = (errs,startbal)
| isNothing assertion = (errs,startbal)
| -- bal' /= assertedbal -- MixedAmount's Eq instance currently gets confused by different precisions
not $ isReallyZeroMixedAmount (actualbal - assertedbal) = (errs++[err], finalfullbal)
| otherwise = (errs,finalfullbal)
where
p = last ps
assertion = pbalanceassertion p
Just assertedbal = dbg2 "assertedbal" assertion
assertedcomm = dbg2 "assertedcomm" $ maybe "" acommodity $ headMay $ amounts assertedbal
finalfullbal = dbg2 "finalfullbal" $ sum $ [dbg2 "startbal" startbal] ++ map pamount ps
finalsinglebal = dbg2 "finalsinglebal" $ filterMixedAmount (\a -> acommodity a == assertedcomm) finalfullbal
actualbal = finalsinglebal -- just check the single-commodity balance, like Ledger; maybe add ==FULLBAL later
diff = actualbal - assertedbal
diffplus | isNegativeMixedAmount diff == Just False = "+"
| otherwise = ""
err = printf (unlines [
"a balance assertion failed on %s",
"in account %s",
"in commodity %s",
"asserted balance was %s, actual balance was %s (difference: %s)",
"after posting:",
"%s",
"%s"
])
(showDate $ postingDate p)
(paccount p)
assertedcomm
(showMixedAmount assertedbal)
(showMixedAmount finalsinglebal)
(diffplus ++ showMixedAmount diff)
(showPostingLine p)
(case ptransaction p of
Nothing -> ""
Just t -> printf "in transaction at %s line %d:\n%s" f l (show t)
where GenericSourcePos f l _ = tsourcepos t
)
-- Given a sequence of postings to a single account, split it into
-- sub-sequences consisting of ordinary postings followed by a single
-- balance-asserting posting. Postings not followed by a balance
-- assertion are discarded.
splitAssertions :: [Posting] -> [[Posting]]
splitAssertions ps
| null rest = []
| otherwise = (ps'++[head rest]):splitAssertions (tail rest)
where
(ps',rest) = break (isJust . pbalanceassertion) ps
-- | Fill in any missing amounts and check that all journal transactions
-- balance, or return an error message. This is done after parsing all
-- amounts and working out the canonical commodities, since balancing
-- depends on display precision. Reports only the first error encountered.
journalBalanceTransactions :: Journal -> Either String Journal
journalBalanceTransactions j@Journal{jtxns=ts, jinferredcommodities=ss} =
case sequence $ map balance ts of Right ts' -> Right j{jtxns=map txnTieKnot ts'}
Left e -> Left e
where balance = balanceTransaction (Just ss)
-- | Choose and apply a consistent display format to the posting
-- amounts in each commodity. Each commodity's format is specified by
-- a commodity format directive, or otherwise inferred from posting
-- amounts as in hledger < 0.28.
journalApplyCommodityStyles :: Journal -> Journal
journalApplyCommodityStyles j@Journal{jtxns=ts, jmarketprices=mps} = j''
where
j' = journalInferCommodityStyles j
j'' = j'{jtxns=map fixtransaction ts, jmarketprices=map fixmarketprice mps}
fixtransaction t@Transaction{tpostings=ps} = t{tpostings=map fixposting ps}
fixposting p@Posting{pamount=a} = p{pamount=fixmixedamount a}
fixmarketprice mp@MarketPrice{mpamount=a} = mp{mpamount=fixamount a}
fixmixedamount (Mixed as) = Mixed $ map fixamount as
fixamount a@Amount{acommodity=c} = a{astyle=journalCommodityStyle j' c}
-- | Get this journal's standard display style for the given
-- commodity. That is the style defined by the last corresponding
-- commodity format directive if any, otherwise the style inferred
-- from the posting amounts (or in some cases, price amounts) in this
-- commodity if any, otherwise the default style.
journalCommodityStyle :: Journal -> CommoditySymbol -> AmountStyle
journalCommodityStyle j c =
headDef amountstyle{asprecision=2} $
catMaybes [
M.lookup c (jcommodities j) >>= cformat
,M.lookup c $ jinferredcommodities j
]
-- | Infer a display format for each commodity based on the amounts parsed.
-- "hledger... will use the format of the first posting amount in the
-- commodity, and the highest precision of all posting amounts in the commodity."
journalInferCommodityStyles :: Journal -> Journal
journalInferCommodityStyles j =
j{jinferredcommodities =
commodityStylesFromAmounts $
dbg8 "journalChooseCommmodityStyles using amounts" $ journalAmounts j}
-- | Given a list of amounts in parse order, build a map from their commodity names
-- to standard commodity display formats.
commodityStylesFromAmounts :: [Amount] -> M.Map CommoditySymbol AmountStyle
commodityStylesFromAmounts amts = M.fromList commstyles
where
samecomm = \a1 a2 -> acommodity a1 == acommodity a2
commamts = [(acommodity $ head as, as) | as <- groupBy samecomm $ sortBy (comparing acommodity) amts]
commstyles = [(c, canonicalStyleFrom $ map astyle as) | (c,as) <- commamts]
-- | Given an ordered list of amount styles, choose a canonical style.
-- That is: the style of the first, and the
-- maximum precision of all.
canonicalStyleFrom :: [AmountStyle] -> AmountStyle
canonicalStyleFrom [] = amountstyle
canonicalStyleFrom ss@(first:_) =
first{asprecision=prec, asdecimalpoint=mdec, asdigitgroups=mgrps}
where
mgrps = maybe Nothing Just $ headMay $ catMaybes $ map asdigitgroups ss
-- precision is maximum of all precisions
prec = maximum $ map asprecision ss
mdec = Just $ headDef '.' $ catMaybes $ map asdecimalpoint ss
-- precision is that of first amount with a decimal point
-- (mdec, prec) =
-- case filter (isJust . asdecimalpoint) ss of
-- (s:_) -> (asdecimalpoint s, asprecision s)
-- [] -> (Just '.', 0)
-- -- | Apply this journal's historical price records to unpriced amounts where possible.
-- journalApplyMarketPrices :: Journal -> Journal
-- journalApplyMarketPrices j@Journal{jtxns=ts} = j{jtxns=map fixtransaction ts}
-- where
-- fixtransaction t@Transaction{tdate=d, tpostings=ps} = t{tpostings=map fixposting ps}
-- where
-- fixposting p@Posting{pamount=a} = p{pamount=fixmixedamount a}
-- fixmixedamount (Mixed as) = Mixed $ map fixamount as
-- fixamount = fixprice
-- fixprice a@Amount{price=Just _} = a
-- fixprice a@Amount{commodity=c} = a{price=maybe Nothing (Just . UnitPrice) $ journalMarketPriceFor j d c}
-- -- | Get the price for a commodity on the specified day from the price database, if known.
-- -- Does only one lookup step, ie will not look up the price of a price.
-- journalMarketPriceFor :: Journal -> Day -> CommoditySymbol -> Maybe MixedAmount
-- journalMarketPriceFor j d CommoditySymbol{symbol=s} = do
-- let ps = reverse $ filter ((<= d).mpdate) $ filter ((s==).hsymbol) $ sortBy (comparing mpdate) $ jmarketprices j
-- case ps of (MarketPrice{mpamount=a}:_) -> Just a
-- _ -> Nothing
-- | Convert all this journal's amounts to cost by applying their prices, if any.
journalConvertAmountsToCost :: Journal -> Journal
journalConvertAmountsToCost j@Journal{jtxns=ts} = j{jtxns=map fixtransaction ts}
where
-- similar to journalApplyCommodityStyles
fixtransaction t@Transaction{tpostings=ps} = t{tpostings=map fixposting ps}
fixposting p@Posting{pamount=a} = p{pamount=fixmixedamount a}
fixmixedamount (Mixed as) = Mixed $ map fixamount as
fixamount = canonicaliseAmount (jinferredcommodities j) . costOfAmount
-- -- | Get this journal's unique, display-preference-canonicalised commodities, by symbol.
-- journalCanonicalCommodities :: Journal -> M.Map String CommoditySymbol
-- journalCanonicalCommodities j = canonicaliseCommodities $ journalAmountCommodities j
-- -- | Get all this journal's amounts' commodities, in the order parsed.
-- journalAmountCommodities :: Journal -> [CommoditySymbol]
-- journalAmountCommodities = map acommodity . concatMap amounts . journalAmounts
-- -- | Get all this journal's amount and price commodities, in the order parsed.
-- journalAmountAndPriceCommodities :: Journal -> [CommoditySymbol]
-- journalAmountAndPriceCommodities = concatMap amountCommodities . concatMap amounts . journalAmounts
-- -- | Get this amount's commodity and any commodities referenced in its price.
-- amountCommodities :: Amount -> [CommoditySymbol]
-- amountCommodities Amount{acommodity=c,aprice=p} =
-- case p of Nothing -> [c]
-- Just (UnitPrice ma) -> c:(concatMap amountCommodities $ amounts ma)
-- Just (TotalPrice ma) -> c:(concatMap amountCommodities $ amounts ma)
-- | Get an ordered list of the amounts in this journal which will
-- influence amount style canonicalisation. These are:
--
-- * amounts in market price directives (in parse order)
-- * amounts in postings (in parse order)
--
-- Amounts in default commodity directives also influence
-- canonicalisation, but earlier, as amounts are parsed.
-- Amounts in posting prices are not used for canonicalisation.
--
journalAmounts :: Journal -> [Amount]
journalAmounts j =
concat
[map mpamount $ jmarketprices j
,concatMap flatten $ map pamount $ journalPostings j
]
where flatten (Mixed as) = as
-- | The fully specified date span enclosing the dates (primary or secondary)
-- of all this journal's transactions and postings, or DateSpan Nothing Nothing
-- if there are none.
journalDateSpan :: Bool -> Journal -> DateSpan
journalDateSpan secondary j
| null ts = DateSpan Nothing Nothing
| otherwise = DateSpan (Just earliest) (Just $ addDays 1 latest)
where
earliest = minimum dates
latest = maximum dates
dates = pdates ++ tdates
tdates = map (if secondary then transactionDate2 else tdate) ts
pdates = concatMap (catMaybes . map (if secondary then (Just . postingDate2) else pdate) . tpostings) ts
ts = jtxns j
-- #ifdef TESTS
test_journalDateSpan = do
"journalDateSpan" ~: do
assertEqual "" (DateSpan (Just $ fromGregorian 2014 1 10) (Just $ fromGregorian 2014 10 11))
(journalDateSpan True j)
where
j = nulljournal{jtxns = [nulltransaction{tdate = parsedate "2014/02/01"
,tpostings = [posting{pdate=Just (parsedate "2014/01/10")}]
}
,nulltransaction{tdate = parsedate "2014/09/01"
,tpostings = [posting{pdate2=Just (parsedate "2014/10/10")}]
}
]}
-- #endif
-- Misc helpers
-- | Check if a set of hledger account/description filter patterns matches the
-- given account name or entry description. Patterns are case-insensitive
-- regular expressions. Prefixed with not:, they become anti-patterns.
matchpats :: [String] -> String -> Bool
matchpats pats str =
(null positives || any match positives) && (null negatives || not (any match negatives))
where
(negatives,positives) = partition isnegativepat pats
match "" = True
match pat = regexMatchesCI (abspat pat) str
negateprefix = "not:"
isnegativepat = (negateprefix `isPrefixOf`)
abspat pat = if isnegativepat pat then drop (length negateprefix) pat else pat
-- debug helpers
-- traceAmountPrecision a = trace (show $ map (precision . acommodity) $ amounts a) a
-- tracePostingsCommodities ps = trace (show $ map ((map (precision . acommodity) . amounts) . pamount) ps) ps
-- tests
-- A sample journal for testing, similar to data/sample.journal:
--
-- 2008/01/01 income
-- assets:bank:checking $1
-- income:salary
--
-- 2008/06/01 gift
-- assets:bank:checking $1
-- income:gifts
--
-- 2008/06/02 save
-- assets:bank:saving $1
-- assets:bank:checking
--
-- 2008/06/03 * eat & shop
-- expenses:food $1
-- expenses:supplies $1
-- assets:cash
--
-- 2008/12/31 * pay off
-- liabilities:debts $1
-- assets:bank:checking
--
Right samplejournal = journalBalanceTransactions $
nulljournal
{jtxns = [
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/01/01",
tdate2=Nothing,
tstatus=Uncleared,
tcode="",
tdescription="income",
tcomment="",
ttags=[],
tpostings=
["assets:bank:checking" `post` usd 1
,"income:salary" `post` missingamt
],
tpreceding_comment_lines=""
}
,
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/06/01",
tdate2=Nothing,
tstatus=Uncleared,
tcode="",
tdescription="gift",
tcomment="",
ttags=[],
tpostings=
["assets:bank:checking" `post` usd 1
,"income:gifts" `post` missingamt
],
tpreceding_comment_lines=""
}
,
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/06/02",
tdate2=Nothing,
tstatus=Uncleared,
tcode="",
tdescription="save",
tcomment="",
ttags=[],
tpostings=
["assets:bank:saving" `post` usd 1
,"assets:bank:checking" `post` usd (-1)
],
tpreceding_comment_lines=""
}
,
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/06/03",
tdate2=Nothing,
tstatus=Cleared,
tcode="",
tdescription="eat & shop",
tcomment="",
ttags=[],
tpostings=["expenses:food" `post` usd 1
,"expenses:supplies" `post` usd 1
,"assets:cash" `post` missingamt
],
tpreceding_comment_lines=""
}
,
txnTieKnot $ Transaction {
tindex=0,
tsourcepos=nullsourcepos,
tdate=parsedate "2008/12/31",
tdate2=Nothing,
tstatus=Uncleared,
tcode="",
tdescription="pay off",
tcomment="",
ttags=[],
tpostings=["liabilities:debts" `post` usd 1
,"assets:bank:checking" `post` usd (-1)
],
tpreceding_comment_lines=""
}
]
}
tests_Hledger_Data_Journal = TestList $
[
test_journalDateSpan
-- "query standard account types" ~:
-- do
-- let j = journal1
-- journalBalanceSheetAccountNames j `is` ["assets","assets:a","equity","equity:q","equity:q:qq","liabilities","liabilities:l"]
-- journalProfitAndLossAccountNames j `is` ["expenses","expenses:e","income","income:i"]
]