1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- G N A T . C A L E N D A R . T I M E _ I O --
-- --
-- S p e c --
-- --
-- Copyright (C) 1999-2005, AdaCore --
-- --
-- This specification is derived from the Ada Reference Manual for use with --
-- GNAT. The copyright notice above, and the license provisions that follow --
-- apply solely to the contents of the part following the private keyword. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This package augments standard Ada.Text_IO with facilities for input
-- and output of time values in standardized format.
package GNAT.Calendar.Time_IO is
Picture_Error : exception;
-- Exception raised for incorrect picture
type Picture_String is new String;
-- This is a string to describe date and time output format. The string is
-- a set of standard character and special tag that are replaced by the
-- corresponding values. It follows the GNU Date specification. Here are
-- the recognized directives :
--
-- % a literal %
-- n a newline
-- t a horizontal tab
--
-- Time fields:
--
-- %H hour (00..23)
-- %I hour (01..12)
-- %k hour ( 0..23)
-- %l hour ( 1..12)
-- %M minute (00..59)
-- %p locale's AM or PM
-- %r time, 12-hour (hh:mm:ss [AP]M)
-- %s seconds since 1970-01-01 00:00:00 UTC
-- (a nonstandard extension)
-- %S second (00..59)
-- %T time, 24-hour (hh:mm:ss)
--
-- Date fields:
--
-- %a locale's abbreviated weekday name (Sun..Sat)
-- %A locale's full weekday name, variable length
-- (Sunday..Saturday)
-- %b locale's abbreviated month name (Jan..Dec)
-- %B locale's full month name, variable length
-- (January..December)
-- %c locale's date and time (Sat Nov 04 12:02:33 EST 1989)
-- %d day of month (01..31)
-- %D date (mm/dd/yy)
-- %h same as %b
-- %j day of year (001..366)
-- %m month (01..12)
-- %U week number of year with Sunday as first day of week
-- (00..53)
-- %w day of week (0..6) with 0 corresponding to Sunday
-- %W week number of year with Monday as first day of week
-- (00..53)
-- %x locale's date representation (mm/dd/yy)
-- %y last two digits of year (00..99)
-- %Y year (1970...)
--
-- By default, date pads numeric fields with zeroes. GNU date
-- recognizes the following nonstandard numeric modifiers:
--
-- - (hyphen) do not pad the field
-- _ (underscore) pad the field with spaces
--
-- Here are some GNAT extensions to the GNU Date specification:
--
-- %i milliseconds (3 digits)
-- %e microseconds (6 digits)
-- %o nanoseconds (9 digits)
ISO_Date : constant Picture_String;
-- This format follow the ISO 8601 standard. The format is "YYYY-MM-DD",
-- four digits year, month and day number separated by minus.
US_Date : constant Picture_String;
-- This format is the common US date format: "MM/DD/YY",
-- month and day number, two digits year separated by slashes.
European_Date : constant Picture_String;
-- This format is the common European date format: "DD/MM/YY",
-- day and month number, two digits year separated by slashes.
function Image
(Date : Ada.Calendar.Time;
Picture : Picture_String) return String;
-- Return Date as a string with format Picture. Raise Picture_Error if
-- picture string is wrong.
procedure Put_Time
(Date : Ada.Calendar.Time;
Picture : Picture_String);
-- Put Date with format Picture. Raise Picture_Error if picture string is
-- wrong
private
ISO_Date : constant Picture_String := "%Y-%m-%d";
US_Date : constant Picture_String := "%m/%d/%y";
European_Date : constant Picture_String := "%d/%m/%y";
end GNAT.Calendar.Time_IO;
|
