Re: [Haskell-cafe] What is the good way to work with list comprehension and UTCTime?

Antoine has it right, the language is lifted from the RFC. Chris Heller SAS - Advanced Analytics Teragram Research & Development phone: 1-617-576-6800 x54237 mobile: 1-617-460-3643 email: heller@teragram.com On Sep 16, 2012, at 7:14 PM, Antoine Latter wrote:

On Sun, Sep 16, 2012 at 5:04 PM, Richard O'Keefe wrote:

...

On 15/09/2012, at 5:14 AM, Chris Heller wrote:

...

You might want to have a look at the time-recurrence package: http://hackage.haskell.org/package/time-recurrence

For your simple cases you would do something like:

Each second:

starting (UTCTime ...) $ recur secondly

Each minute:

starting (UTCTime ...) $ recur minutely

Ouch. Look up "minutely" (my-NEWT-ly) in an English dictionary. Look up "secondly" while you're there.

You can blame RFC 5545 for that one. In section 3.3.10. our frequencies are:

freq = "SECONDLY" / "MINUTELY" / "HOURLY" / "DAILY" / "WEEKLY" / "MONTHLY" / "YEARLY"

Antoine