This increases composability and avoids some ugly case handling. We
re-export runExceptT in Hledger.Read.
The final return types of the following functions has been changed from
IO (Either String a) to ExceptT String IO a. If this causes a problem,
you can get the old behaviour by calling runExceptT on the output:
readJournal, readJournalFiles, readJournalFile
Or, you can use the easy functions readJournal', readJournalFiles', and
readJournalFile', which assume default options and return in the IO
monad.
(SourcePos, SourcePos).
This has been marked for possible removal for a while. We are keeping
strictly more information. Possible edge cases arise with Timeclock and
CsvReader, but I think these are covered.
The particular motivation for getting rid of this is that
GenericSourcePos is creating some awkward import considerations for
little gain. Removing this enables some flattening of the module
dependency tree.
transactions are balanced possibly using explicit prices, but without
inferring any prices. This is included in --strict mode.
Renames check autobalanced to check balancedwithautoconversion.
Exceptions are for dealing with the pamount field, which is really just
dealing with an unnormalised list of amounts.
This creates an API for dealing with MixedAmount, so we never have to
access the internals outside of Hledger.Data.Amount.
Also remove a comment, since it looks like #1207 has been resolved.
supplant the old interface, which relied on the Num typeclass.
MixedAmount did not have a very good Num instance. The only functions
which were defined were fromInteger, (+), and negate. Furthermore, it
was not law-abiding, as 0 + a /= a in general. Replacements for used
functions are:
0 -> nullmixedamt / mempty
(+) -> maPlus / (<>)
(-) -> maMinus
negate -> maNegate
sum -> maSum
sumStrict -> maSum
Also creates some new constructors for MixedAmount:
mixedAmount :: Amount -> MixedAmount
maAddAmount :: MixedAmount -> Amount -> MixedAmount
maAddAmounts :: MixedAmount -> [Amount] -> MixedAmount
Add Semigroup and Monoid instances for MixedAmount.
Ideally we would remove the Num instance entirely.
The only change needed have nullmixedamt/mempty substitute for
0 without problems was to not squash prices in
mixedAmount(Looks|Is)Zero. This is correct behaviour in any case.
simplifySign now covers a few more sign combinations that might arise.
And in particular, it strips a standalone sign with no number,
which simplifies sign flipping with amount-in/amount-out.
Command-line account aliases now also affect transactions read
from these formats (not just journal format).
lib: journalApplyAliases, transactionApplyAliases, postingApplyAliases
helpers have been added.
Journal keeps a new piece of parsing state, a decimal mark character,
which can optionally be set to force the number format expected by all
amount parsers.
