With the new capabilities of Calendar in 1.5 I am now adding date and time localisation to a package I maintain (https://hex.pm/packages/ex_cldr).
CLDR (http://unicode.org/reports/tr35/tr35-dates.html#Date_Format_Patterns) defines a number of symbols to aid formatting and localisation. Many of these can be supported by the Calendar module (or easily derived). Some would be better defined in a calendar module - which would imply adding them to the behaviour and to Calendar.ISO. These functions are: 1. months_in_year(year) which together with the existing days_in_month/2 would allow the calculation of quarters which is relevant in a lot of business contexts 2. week_of_year(date) which returns the week number within which the date occurs. 3. week_of_month(date) which returns the week of the month within which the date occurs 5. day_of_week_in_month(date) returns the ordinal day (i.e. 2nd in 2nd Wednesday in July) 6. year(date) which returns the effective year in which the date lies. For example in an ISO Week implementation, the "year" may be different to the "year in the date" Although my immediate focus is date formatting and localisation, these functions are of themselves relevant for other "calendarists" (is that a word?) Each of these may have quite specific implementation details related to a given calendar and therefore would seem to be appropriate to be part of the behaviour. I've tried to think of only those functions which cannot be readily derived without knowledge of the specific calendar but I know this is a slippery slope - especially with anything to do with time and dates. Thoughts? --Kip -- You received this message because you are subscribed to the Google Groups "elixir-lang-core" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elixir-lang-core/20060086-74b8-4a40-bbf4-a160783f94d9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
