On Thu, May 12, 2016 at 9:47 PM, Davide Varvello via Pharo-users <pharo-users@lists.pharo.org> wrote:
---------- Forwarded message ---------- From: Davide Varvello <varvello@yahoo.com> To: pharo-users@lists.pharo.org Cc: Date: Thu, 12 May 2016 06:10:12 -0700 (PDT) Subject: Week number from a date Hi guys,
Is there a way to have the week number when a date is given?
Ex: 2016/01/13 gives 2, 2016/01/19 gives 3, and so on
It seems the answer is no. But to expand on how I determined that, in the interest of teaching how to fish... 1. Open World > Tools > Finder 2. Select examples 3. Enter.... Date readFromString: '2016/01/13' . 2016 4. Click <Search> This returns one result, the message #year. 5. Next trying.... Date readFromString: '2016/01/13' . 3 This returns no result. Think of the search term as an array of two objects separated by the period. The first object is the receiver of the message. The last object is the result. Any additional objects in between are message parameters. Try this one.... #(5 6 7 8) . 2 . #(5 6) On Fri, May 13, 2016 at 12:24 AM, Sven Van Caekenberghe <sven@stfx.eu> wrote:
https://en.wikipedia.org/wiki/Week#Week_numbering
of course, not all countries have the same definition of week. furthermore, week number does not seem to be so simple.
Interesting to know. But I see this already seems hard coded... Date nameOfDay: 1 "--> #Sunday" Timespan subclass: #Date poolDictionaries: 'ChronologyConstants' ChronologyConstants class >> initialize DayNames := #(Sunday Monday Tuesday Wednesday Thursday Friday Saturday). Also seems to have changed at some point, with the historical nameOfDay recorded in the Terse Guide [1] circa 2010 shown to be different. Perhaps this is something we should make a regional preference. Was there any ongoing works on other regional preferences? [1] http://wiki.squeak.org/squeak/5699 cheers -ben