This is not a complete solution, but the Date::Manip module in perl has some of this in it - you can get, for example, "today - four weeks".
ap ---------------------------------------------------------------------- Andrew J Perrin - http://www.unc.edu/~aperrin Assistant Professor of Sociology, U of North Carolina, Chapel Hill [EMAIL PROTECTED] * andrew_perrin (at) unc.edu On Sun, 20 Oct 2002, Josh Rehman wrote: > This is certainly off topic, but I don't really know where else to turn. > > Is there an open source library, perhaps in Perl or Java, that supports > the representation and manipulation of date recurrence patterns? We are > looking to describe patterns like "every Thursday" or "every Tue-Thurs" > or even "on the first Monday of February". Ideally such a library would > provide us with a variety of views, including natural language. Anyone > who has used a PIM knows the thing I am speaking of (Evolution, Outlook, > etc). > > The brute force approach for this problem is straight-forward and would > not require a third party library. However, we are looking for an > efficient implementation that can tell us, for example, whether or not a > given date satisfies a given pattern. (The brute force approach expands > the pattern and checks each element for equality with a given date: good > for patterns that describe small sets, bad for ones that describe larger > sets). > > Thanks for helping, > Josh Rehman > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
