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lib: make month names in period expressions case-insensitive

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Currently only lower-case account names are supported, both on the
command line, and in the journal (in periodic transactions):

This works:
$ hledger balance -p nov

This does not:
$ hledger balance -p Nov

First transaction will parse, second will not:
```
cat every-month.journal                                                                                                                                ~/devel/haskell/darcs-get/hledger/examples
~ aug to sep
    assets
    expenses    $1

~ Aug to Sep
    assets
    expenses    $2
```

$../bin/hledger-budget bal -f every-month.journal
hledger-budget: Failed to parse "Aug to Sep": date parse error ()

This commit fixes both cases.
This commit is contained in:
Dmitry Astapov 2017-11-25 00:42:39 +00:00
parent 4049455f26
commit 7acb5d45aa
1 changed files with 6 additions and 12 deletions
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18
hledger-lib/Hledger/Data/Dates.hs
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@ -257,7 +257,7 @@ earliest (Just d1) (Just d2) = Just $ min d1 d2
-- | Parse a period expression to an Interval and overall DateSpan using
-- the provided reference date, or return a parse error.
parsePeriodExpr :: Day -> Text -> Either (ParseError Char MPErr) (Interval, DateSpan)
parsePeriodExpr refdate = parsewith (periodexpr refdate <* eof)
parsePeriodExpr refdate s = parsewith (periodexpr refdate <* eof) (T.toLower s)
maybePeriod :: Day -> Text -> Maybe (Interval,DateSpan)
maybePeriod refdate = either (const Nothing) Just . parsePeriodExpr refdate
@ -671,14 +671,8 @@ monthabbrevs = ["jan","feb","mar","apr","may","jun","jul","aug","sep","oct","n
-- weekdays = ["monday","tuesday","wednesday","thursday","friday","saturday","sunday"]
-- weekdayabbrevs = ["mon","tue","wed","thu","fri","sat","sun"]
#if MIN_VERSION_megaparsec(6,0,0)
lc = T.toLower
#else
lc = lowercase
#endif
monthIndex t = maybe 0 (+1) $ lc t `elemIndex` months
monIndex t = maybe 0 (+1) $ lc t `elemIndex` monthabbrevs
monthIndex t = maybe 0 (+1) $ t `elemIndex` months
monIndex t = maybe 0 (+1) $ t `elemIndex` monthabbrevs
month :: SimpleTextParser SmartDate
month = do
@ -718,12 +712,12 @@ lastthisnextthing = do
return ("", T.unpack r, T.unpack p)
-- |
-- >>> let p = parsewith (periodexpr (parsedate "2008/11/26")) :: T.Text -> Either (ParseError Char MPErr) (Interval, DateSpan)
-- >>> p "from aug to oct"
-- >>> let p s = parsewith (periodexpr (parsedate "2008/11/26")) (T.toLower s) :: Either (ParseError Char MPErr) (Interval, DateSpan)
-- >>> p "from Aug to Oct"
-- Right (NoInterval,DateSpan 2008/08/01-2008/09/30)
-- >>> p "aug to oct"
-- Right (NoInterval,DateSpan 2008/08/01-2008/09/30)
-- >>> p "every 3 days in aug"
-- >>> p "every 3 days in Aug"
-- Right (Days 3,DateSpan 2008/08)
-- >>> p "daily from aug"
-- Right (Days 1,DateSpan 2008/08/01-)