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print: negative account patterns now exclude transactions containing any posting to a matched account

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This commit is contained in:
Simon Michael 2010-04-15 23:08:27 +00:00
parent 0f17ca7ade
commit bba4a32339
1 changed files with 17 additions and 5 deletions
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22
hledger-lib/Hledger/Data/Journal.hs
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@ -170,9 +170,18 @@ filterJournalPostingsByDepth (Just d) j@Journal{jtxns=ts} =
t{tpostings=filter ((<= d) . accountNameLevel . 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 match ts}
where match = any (matchpats apats . paccount) . tpostings
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 = containsRegex (abspat pat) a
(negatives,positives) = partition isnegativepat apats
-- | Keep only postings which affect accounts matched by the account patterns.
-- This can leave transactions unbalanced.
@ -293,9 +302,12 @@ matchpats pats str =
(negatives,positives) = partition isnegativepat pats
match "" = True
match pat = containsRegex (abspat pat) str
negateprefix = "not:"
isnegativepat = (negateprefix `isPrefixOf`)
abspat pat = if isnegativepat pat then drop (length negateprefix) pat else pat
negateprefix = "not:"
isnegativepat = (negateprefix `isPrefixOf`)
abspat pat = if isnegativepat pat then drop (length negateprefix) pat else pat
-- | Calculate the account tree and all account balances from a journal's
-- postings, returning the results for efficient lookup.