change of mind: "every Nth X of Y" intervals' length shall be Y, not X

This commit is contained in:
Simon Michael 2011-01-14 05:01:00 +00:00
parent 810c6a5dac
commit 2b1ea5160f
2 changed files with 25 additions and 30 deletions

View File

@ -911,9 +911,9 @@ Note, however: a `-p/--period` option in the command line will cause any
Period expressions can also begin with (or be) a reporting interval, which
affects commands like [register](#register) and [histogram](#histogram).
The reporting interval is one of: `daily`, `weekly`, `monthly`,
`quarterly`, or `yearly`, optionally followed by an `in`
keyword. Examples:
The reporting interval can be `daily`, `weekly`, `monthly`, `quarterly`, `yearly`,
or one of the `every ...` expressions below, optionally followed by `in`.
Examples:
-p "weekly from 2009/1/1 to 2009/4/1"
-p "monthly in 2008"
@ -924,9 +924,6 @@ keyword. Examples:
-p "every 15th day of month"
-p "every 4th day of week"
Note the last two give intervals that are one day long, so are not
all that useful currently.
A reporting interval may also be specified with the `-D/--daily`,
`-W/--weekly`, `-M/--monthly`, `-Q/--quarterly`, and `-Y/--yearly`
options. But as noted above, a --period option will override these.

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@ -54,13 +54,13 @@ elapsedSeconds t1 = realToFrac . diffUTCTime t1
splitSpan :: Interval -> DateSpan -> [DateSpan]
splitSpan _ (DateSpan Nothing Nothing) = [DateSpan Nothing Nothing]
splitSpan NoInterval s = [s]
splitSpan (Days n) s = splitspan startofday (applyN n nextday) Nothing s
splitSpan (Weeks n) s = splitspan startofweek (applyN n nextweek) Nothing s
splitSpan (Months n) s = splitspan startofmonth (applyN n nextmonth) Nothing s
splitSpan (Quarters n) s = splitspan startofquarter (applyN n nextquarter) Nothing s
splitSpan (Years n) s = splitspan startofyear (applyN n nextyear) Nothing s
splitSpan (DayOfMonth n) s = splitspan (nthdayofmonthcontaining n) (applyN (n-1) nextday . nextmonth) (Just nextday) s
splitSpan (DayOfWeek n) s = splitspan (nthdayofweekcontaining n) (applyN (n-1) nextday . nextweek) (Just nextday) s
splitSpan (Days n) s = splitspan startofday (applyN n nextday) s
splitSpan (Weeks n) s = splitspan startofweek (applyN n nextweek) s
splitSpan (Months n) s = splitspan startofmonth (applyN n nextmonth) s
splitSpan (Quarters n) s = splitspan startofquarter (applyN n nextquarter) s
splitSpan (Years n) s = splitspan startofyear (applyN n nextyear) s
splitSpan (DayOfMonth n) s = splitspan (nthdayofmonthcontaining n) (applyN (n-1) nextday . nextmonth) s
splitSpan (DayOfWeek n) s = splitspan (nthdayofweekcontaining n) (applyN (n-1) nextday . nextweek) s
-- splitSpan (WeekOfYear n) s = splitspan startofweek (applyN n nextweek) s
-- splitSpan (MonthOfYear n) s = splitspan startofmonth (applyN n nextmonth) s
-- splitSpan (QuarterOfYear n) s = splitspan startofquarter (applyN n nextquarter) s
@ -68,22 +68,20 @@ splitSpan (DayOfWeek n) s = splitspan (nthdayofweekcontaining n) (applyN (n-1)
-- Split the given span using the provided helper functions:
-- start is applied to the span's start date to get the first sub-span's start date
-- next is applied to a sub-span's start date to get the next sub-span's start date
-- end is applied to a sub-span's start date to get that sub-span's end date, if different from the above.
splitspan :: (Day -> Day) -> (Day -> Day) -> Maybe (Day -> Day) -> DateSpan -> [DateSpan]
splitspan _ _ _ (DateSpan Nothing Nothing) = []
splitspan start next end (DateSpan Nothing (Just e)) = splitspan start next end (DateSpan (Just $ start e) (Just $ next $ start e))
splitspan start next end (DateSpan (Just s) Nothing) = splitspan start next end (DateSpan (Just $ start s) (Just $ next $ start s))
splitspan start next end span@(DateSpan (Just s) (Just e))
splitspan :: (Day -> Day) -> (Day -> Day) -> DateSpan -> [DateSpan]
splitspan _ _ (DateSpan Nothing Nothing) = []
splitspan start next (DateSpan Nothing (Just e)) = splitspan start next (DateSpan (Just $ start e) (Just $ next $ start e))
splitspan start next (DateSpan (Just s) Nothing) = splitspan start next (DateSpan (Just $ start s) (Just $ next $ start s))
splitspan start next span@(DateSpan (Just s) (Just e))
| s == e = [span]
| otherwise = splitspan' start next end span
| otherwise = splitspan' start next span
where
splitspan' start next end (DateSpan (Just s) (Just e))
splitspan' start next (DateSpan (Just s) (Just e))
| s >= e = []
| otherwise = DateSpan (Just subs) (Just sube) : splitspan' start next end (DateSpan (Just subn) (Just e))
| otherwise = DateSpan (Just subs) (Just sube) : splitspan' start next (DateSpan (Just sube) (Just e))
where subs = start s
sube = (fromMaybe next end) subs
subn = next subs
splitspan' _ _ _ _ = error' "won't happen, avoids warnings"
sube = next subs
splitspan' _ _ _ = error' "won't happen, avoids warnings"
-- | Count the days in a DateSpan, or if it is open-ended return Nothing.
daysInSpan :: DateSpan -> Maybe Integer
@ -598,13 +596,13 @@ tests_Hledger_Data_Dates = TestList
,mkdatespan "2008/01/14" "2008/01/28"
]
(DayOfMonth 2,mkdatespan "2008/01/01" "2008/04/01") `gives`
[mkdatespan "2008/01/02" "2008/01/03"
,mkdatespan "2008/02/02" "2008/02/03"
,mkdatespan "2008/03/02" "2008/03/03"
[mkdatespan "2008/01/02" "2008/02/02"
,mkdatespan "2008/02/02" "2008/03/02"
,mkdatespan "2008/03/02" "2008/04/02"
]
(DayOfWeek 2,mkdatespan "2011/01/01" "2011/01/15") `gives`
[mkdatespan "2011/01/04" "2011/01/05"
,mkdatespan "2011/01/11" "2011/01/12"
[mkdatespan "2011/01/04" "2011/01/11"
,mkdatespan "2011/01/11" "2011/01/18"
]
,"fixSmartDateStr" ~: do