ae.utils.time source code

1 /**
2  * Time string formatting and such.
3  *
4  * License:
5  *   This Source Code Form is subject to the terms of
6  *   the Mozilla Public License, v. 2.0. If a copy of
7  *   the MPL was not distributed with this file, You
8  *   can obtain one at http://mozilla.org/MPL/2.0/.
9  *
10  * Authors:
11  *   Vladimir Panteleev <vladimir@thecybershadow.net>
12  */
13 
14 module ae.utils.time;
15 
16 public import ae.utils.time.common;
17 public import ae.utils.time.format;
18 public import ae.utils.time.fpdur;
19 public import ae.utils.time.parse;
20 public import ae.utils.time.parsedur;
21 
22 // ***************************************************************************
23 
24 import std.datetime;
25 
26 alias StdTime = typeof(SysTime.init.stdTime); // long
27 
28 /// Convert from StdTime to Duration
29 alias stdDur = hnsecs;
30 
31 /// Like SysTime.stdTime.
32 @property StdTime stdTime(Duration d)
33 {
34 	return d.total!"hnsecs"();
35 }
36 
37 @property bool empty(Duration d)
38 {
39 	return !d.stdTime;
40 }
41 
42 /// Workaround SysTime.fracSecs only being available in 2.067,
43 /// and SysTime.fracSec becoming deprecated in the same version.
44 static if (!is(typeof(SysTime.init.fracSecs)))
45 @property Duration fracSecs(SysTime s)
46 {
47 	enum hnsecsPerSecond = convert!("seconds", "hnsecs")(1);
48 	return hnsecs(s.stdTime % hnsecsPerSecond);
49 }
50 
51 /// As above, for Duration.split and Duration.get
52 static if (!is(typeof(Duration.init.split!())))
53 @property auto split(units...)(Duration d)
54 {
55 	static struct Result
56 	{
57 		mixin("long " ~ [units].join(", ") ~ ";");
58 	}
59 
60 	Result result;
61 	foreach (unit; units)
62 	{
63 		static if (is(typeof(d.get!unit))) // unit == "msecs" || unit == "usecs" || unit == "hnsecs" || unit == "nsecs")
64 			long value = d.get!unit();
65 		else
66 			long value = mixin("d.fracSec." ~ unit);
67 		mixin("result." ~ unit ~ " = value;");
68 	}
69 	return result;
70 }
71 
72 // ***************************************************************************
73 
74 // fpdur conflict test
75 static assert(1.5.seconds == 1500.msecs);