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predef::
Calendar
Calendar.Event
Calendar.Event.Day_Event
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Method Calendar.Event.Day_Event()->scan_jd()
- Method
scan_jd
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int scan_jd(Calendar realm, int jd, int(-1..-1)|object|int(1..1) direction)
- Description
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These methods has to be defined, and is what
really does some work. It should return the next or previos
julian day (>jd) when the event occurs,
or the constant NODAY if it doesn't.
direction1 is forward (next),
-1 is backward (previous).
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