Packages
timex
3.7.6
3.7.13
3.7.12
3.7.11
3.7.9
3.7.8
3.7.7
3.7.6
3.7.5
3.7.3
3.7.2
3.7.1
3.7.0
3.6.4
3.6.3
3.6.2
retired
3.6.1
3.6.0
3.5.0
3.4.2
3.4.1
3.3.0
3.2.2
3.2.1
3.2.0
3.1.25
retired
3.1.24
3.1.23
3.1.22
3.1.21
3.1.20
3.1.19
3.1.18
3.1.17
3.1.16
3.1.15
3.1.13
3.1.12
3.1.11
3.1.10
3.1.9
3.1.8
3.1.7
3.1.6
3.1.5
3.1.4
3.1.3
3.1.2
3.1.1
3.1.0
3.0.8
3.0.7
3.0.6
3.0.5
3.0.4
3.0.3
3.0.2
3.0.1
3.0.0
2.2.1
2.1.6
2.1.5
2.1.4
2.1.3
2.1.2
2.1.1
2.1.0
2.0.0
1.0.2
1.0.1
1.0.0
1.0.0-rc4
1.0.0-rc3
1.0.0-rc2
1.0.0-rc1
1.0.0-pre
0.19.5
0.19.4
0.19.3
0.19.2
0.19.1
0.19.0
0.18.2
0.18.1
0.18.0
0.17.0
0.16.2
0.16.1
0.16.0
0.15.0
0.14.3
0.14.2
0.14.1
0.14.0
0.13.5
0.13.4
0.13.3
0.13.2
0.13.1
0.13.0
0.12.9
0.12.8
0.12.7
0.12.6
0.12.5
0.12.4
0.12.3
0.12.2
0.12.1
0.12.0
0.11.0
0.10.2
0.10.1
0.10.0
0.9.0
0.8.0
0.7.1
0.6.0
0.5.0
0.4.8
0.4.7
0.4.6
Timex is a rich, comprehensive Date/Time library for Elixir projects, with full timezone support via the :tzdata package. If you need to manipulate dates, times, datetimes, timestamps, etc., then Timex is for you!
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Files
lib/timex/date.ex
defmodule Timex.Date do
if Version.compare(System.version(), "1.11.0") == :lt do
@doc false
def new!(year, month, day, calendar \\ Calendar.ISO) do
case Date.new(year, month, day, calendar) do
{:ok, value} ->
value
{:error, reason} ->
raise ArgumentError, "cannot build date, reason: #{inspect(reason)}"
end
end
@doc false
def beginning_of_week(date, starting_on \\ :default)
def beginning_of_week(%{calendar: Calendar.ISO} = date, starting_on) do
%{year: year, month: month, day: day} = date
iso_days = Calendar.ISO.date_to_iso_days(year, month, day)
{year, month, day} =
case iso_days_to_day_of_week(iso_days, starting_on) do
1 ->
{year, month, day}
day_of_week ->
Calendar.ISO.date_from_iso_days(iso_days - day_of_week + 1)
end
%Date{calendar: Calendar.ISO, year: year, month: month, day: day}
end
def beginning_of_week(%{calendar: calendar} = date, starting_on) do
%{year: year, month: month, day: day} = date
case calendar.day_of_week(year, month, day, starting_on) do
{day_of_week, day_of_week, _} ->
%Date{calendar: calendar, year: year, month: month, day: day}
{day_of_week, first_day_of_week, _} ->
Date.add(date, -(day_of_week - first_day_of_week))
end
end
@doc false
def end_of_week(date, starting_on \\ :default)
def end_of_week(%{calendar: Calendar.ISO} = date, starting_on) do
%{year: year, month: month, day: day} = date
iso_days = Calendar.ISO.date_to_iso_days(year, month, day)
{year, month, day} =
case iso_days_to_day_of_week(iso_days, starting_on) do
7 ->
{year, month, day}
day_of_week ->
Calendar.ISO.date_from_iso_days(iso_days + 7 - day_of_week)
end
%Date{calendar: Calendar.ISO, year: year, month: month, day: day}
end
def end_of_week(%{calendar: calendar} = date, starting_on) do
%{year: year, month: month, day: day} = date
case calendar.day_of_week(year, month, day, starting_on) do
{day_of_week, _, day_of_week} ->
%Date{calendar: calendar, year: year, month: month, day: day}
{day_of_week, _, last_day_of_week} ->
Date.add(date, last_day_of_week - day_of_week)
end
end
@doc false
def end_of_month(%{year: year, month: month, calendar: calendar} = date) do
day = Date.days_in_month(date)
%Date{year: year, month: month, day: day, calendar: calendar}
end
@doc false
def day_of_week(%{year: y, month: m, day: d}, starting_on \\ :default) do
with {dow, _, _} <- day_of_week(y, m, d, starting_on), do: dow
end
@doc false
def day_of_week(year, month, day, starting_on) do
iso_days = Calendar.ISO.date_to_iso_days(year, month, day)
{iso_days_to_day_of_week(iso_days, starting_on), 1, 7}
end
@doc false
def iso_days_to_day_of_week(iso_days, starting_on) do
Integer.mod(iso_days + day_of_week_offset(starting_on), 7) + 1
end
defp day_of_week_offset(:default), do: 5
defp day_of_week_offset(:wednesday), do: 3
defp day_of_week_offset(:thursday), do: 2
defp day_of_week_offset(:friday), do: 1
defp day_of_week_offset(:saturday), do: 0
defp day_of_week_offset(:sunday), do: 6
defp day_of_week_offset(:monday), do: 5
defp day_of_week_offset(:tuesday), do: 4
else
@doc false
defdelegate new!(year, month, day, calendar \\ Calendar.ISO), to: Date
@doc false
defdelegate beginning_of_week(date, starting_on \\ :default), to: Date
@doc false
defdelegate end_of_week(date, starting_on \\ :default), to: Date
@doc false
defdelegate end_of_month(date), to: Date
@doc false
defdelegate day_of_week(date, starting_on \\ :default), to: Date
@doc false
defdelegate day_of_week(year, month, day, starting_on), to: Calendar.ISO
end
end