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doc: expand documentation for period expressions

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Document "first day of period" behavior. Document new period
expressions DayOfYear and WeekdayOfMonth.
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Dmitry Astapov 2017-11-25 00:33:09 +00:00
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hledger/doc/options.m4.md
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@ -239,21 +239,59 @@ Examples:
`-p "quarterly"`
------------------------------------------
Note that `weekly`, `monthly`, `quarterly` and `yearly` intervals will
always start on the first day on week, month, quarter or year
accordingly, and will end on the last day of same period, even if
associated period expression specifies different explicit start and end date.
For example:
------------------------------------------
`-p "weekly from 2009/1/1 to 2009/4/1"` -- starts on 2008/12/29, closest preceeding Monday
`-p "monthly in 2008/11/25"` -- starts on 2018/11/01
`-p "quarterly from 2009-05-05 to 2009-06-01"` - starts on 2009/04/01, ends on 2009/06/30, which are first and last days of Q2 2009
`-p "yearly from 2009-12-29"` - starts on 2009/01/01, first day of 2009
------------------------------------------
The following more complex report intervals are also supported:
`biweekly`,
`bimonthly`,
`every N days|weeks|months|quarters|years`,
`every Nth day [of month]`,
`every Nth day of week`.
`every day|week|month|quarter|year`,
`every N days|weeks|months|quarters|years`.
All of these will start on the first day of the requested period and end on the last one, as described above.
Examples:
------------------------------------------
`-p "bimonthly from 2008"`
`-p "every 2 weeks"`
`-p "every 5 days from 1/3"`
`-p "bimonthly from 2008"` -- periods will have boundaries on 2008/01/01, 2008/03/01, ...
`-p "every 2 weeks"` -- starts on closest preceeding Monday
`-p "every 5 month from 2009/03"` -- periods will have boundaries on 2009/03/01, 2009/08/01, ...
------------------------------------------
If you want intervals that start on arbitrary day of your choosing and span a week, month or year, you need to use any of the following:
`every Nth day of week`,
`every <weekday>`,
`every Nth day [of month]`,
`every Nth weekday [of month]`,
`every MM/DD [of year]`,
`every Nth MMM [of year]`,
`every MMM Nth [of year]`.
Examples:
------------------------------------------
`-p "every 2nd day of week"` -- periods will go from Tue to Tue
`-p "every Tue"` -- same
`-p "every 15th day"` -- period boundaries will be on 15th of each month
`-p "every 2nd Monday"` -- period boundaries will be on second Monday of each month
`-p "every 11/05"` -- yearly periods with boundaries on 5th of Nov
`-p "every 5th Nov"` -- same
`-p "every Nov 5th"` -- same
------------------------------------------
Show historical balances at end of 15th each month (N is exclusive end date):
`hledger balance -H -p "every 16th day"`