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--------------------
-- Time To String --
--------------------
function Image
(Date : Ada.Calendar.Time;
Subsecond_Digits : Natural := 0)
return String is
begin
return Image
(Date,
Ada.Calendar.Time_Zones.UTC_Time_Offset (Date),
Subsecond_Digits);
end Image;
function Image
(Date : Ada.Calendar.Time;
Time_Zone : Ada.Calendar.Time_Zones.Time_Offset;
Subsecond_Digits : Natural := 0)
return String
is
function Subsecond_Image
(Subsecond : Ada.Calendar.Formatting.Second_Duration)
return String;
function Time_Zone_Image return String;
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--------------------
-- Time To String --
--------------------
function Image
(Date : Ada.Calendar.Time;
Subsecond_Digits : Natural := 0;
Force_Leap_Second : Boolean := False)
return String is
begin
return Image
(Date,
Ada.Calendar.Time_Zones.UTC_Time_Offset (Date),
Subsecond_Digits,
Force_Leap_Second);
end Image;
function Image
(Date : Ada.Calendar.Time;
Time_Zone : Ada.Calendar.Time_Zones.Time_Offset;
Subsecond_Digits : Natural := 0;
Force_Leap_Second : Boolean := False)
return String
is
function Subsecond_Image
(Subsecond : Ada.Calendar.Formatting.Second_Duration)
return String;
function Time_Zone_Image return String;
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(Date,
Year, Month, Day,
Hour, Minute, Second,
Subsecond,
Leap_Second,
Time_Zone);
if Leap_Second then
pragma Assert (Second = 59);
Used_Second := 60;
else
Used_Second := Second;
end if;
return
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(Date,
Year, Month, Day,
Hour, Minute, Second,
Subsecond,
Leap_Second,
Time_Zone);
if Leap_Second or Force_Leap_Second then
pragma Assert (Second = 59);
Used_Second := 60;
else
Used_Second := Second;
end if;
return
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procedure Value
(Image : in String;
Date : out Ada.Calendar.Time;
Time_Zone : out Ada.Calendar.Time_Zones.Time_Offset)
is
Year : Ada.Calendar.Year_Number;
Month : Ada.Calendar.Month_Number;
Day : Ada.Calendar.Day_Number;
Hour : Ada.Calendar.Formatting.Hour_Number;
Minute : Ada.Calendar.Formatting.Minute_Number;
Second : Ada.Calendar.Formatting.Second_Number;
Subsecond : Ada.Calendar.Formatting.Second_Duration := 0.0;
Leap_Second : Boolean;
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procedure Value
(Image : in String;
Date : out Ada.Calendar.Time;
Time_Zone : out Ada.Calendar.Time_Zones.Time_Offset)
is
Discarded : Boolean;
begin
Value (Image, Date, Time_Zone, Discarded);
end Value;
procedure Value
(Image : in String;
Date : out Ada.Calendar.Time;
Time_Zone : out Ada.Calendar.Time_Zones.Time_Offset;
Leap_Second : out Boolean)
is
Year : Ada.Calendar.Year_Number;
Month : Ada.Calendar.Month_Number;
Day : Ada.Calendar.Day_Number;
Hour : Ada.Calendar.Formatting.Hour_Number;
Minute : Ada.Calendar.Formatting.Minute_Number;
Second : Ada.Calendar.Formatting.Second_Number;
Subsecond : Ada.Calendar.Formatting.Second_Duration := 0.0;
begin
Year := Natural'Value (Image (Image'First .. Image'First + 3));
Month := Natural'Value (Image (Image'First + 5 .. Image'First + 6));
Day := Natural'Value (Image (Image'First + 8 .. Image'First + 9));
Hour := Natural'Value (Image (Image'First + 11 .. Image'First + 12));
Minute := Natural'Value
(Image (Image'First + 14 .. Image'First + 15));
declare
Number : constant Natural
:= Natural'Value (Image (Image'First + 17 .. Image'First + 18));
begin
if Number = 60 then
Leap_Second := True;
Second := 59;
else
Leap_Second := False;
Second := Number;
end if;
end;
if Image (Image'First + 19) = Subsecond_Separator then
declare
I : Positive := Image'First + 20;
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when '+' =>
null;
when others =>
raise Constraint_Error
with "Invalid time zone separator in RFC 3339 date";
end case;
end if;
Date := Ada.Calendar.Formatting.Time_Of
(Year, Month, Day,
Hour, Minute, Second,
Subsecond, Leap_Second, Time_Zone);
end Value;
end Natools.Time_IO.RFC_3339;
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when '+' =>
null;
when others =>
raise Constraint_Error
with "Invalid time zone separator in RFC 3339 date";
end case;
end if;
if Leap_Second then
begin
Date := Ada.Calendar.Formatting.Time_Of
(Year, Month, Day,
Hour, Minute, Second,
Subsecond, True, Time_Zone);
return;
exception
when Ada.Calendar.Time_Error =>
null;
end;
end if;
Date := Ada.Calendar.Formatting.Time_Of
(Year, Month, Day,
Hour, Minute, Second,
Subsecond, False, Time_Zone);
end Value;
end Natools.Time_IO.RFC_3339;
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