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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
// file : tests/timestamp/driver.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <time.h> // tzset() (POSIX), _tzset() (Windows)
#include <cassert>
#ifndef __cpp_lib_modules
#include <chrono>
#include <locale>
#include <clocale>
#include <sstream>
#include <iomanip>
#include <system_error>
#endif
// Other includes.
#ifdef __cpp_modules
#ifdef __cpp_lib_modules
import std.core;
import std.io;
#endif
import butl.timestamp;
#else
#include <libbutl/timestamp.mxx>
#endif
using namespace std;
using namespace butl;
// Parse the input using the format string. Print the resulting time with the
// same format string, ensure the output matches the input.
//
static bool
parse (const char* in, const char* fmt, bool local, string out)
{
if (out.empty ())
out = in;
try
{
const char* e;
timestamp t (from_string (in, fmt, local, &e));
ostringstream o;
if (!to_stream (o, t, fmt, false, local))
return false;
return o.str () + e == out;
}
catch (...)
{
return false;
}
}
static bool
parse (const char* in, const char* fmt, const string& out = "")
{
return parse (in, fmt, true, out) && parse (in, fmt, false, out);
}
static bool
fail (const char* in, const char* fmt)
{
try
{
from_string (in, fmt, true);
return false;
}
catch (const system_error&)
{
return true;
}
}
// Convert nanoseconds to string according to the butl::duration period.
//
static string
ns (unsigned long long t)
{
duration d (chrono::duration_cast<duration> (chrono::nanoseconds (t)));
chrono::nanoseconds n (chrono::duration_cast<chrono::nanoseconds> (d));
ostringstream o;
o.fill ('0');
o << setw (9) << n.count ();
return o.str ();
}
int
main ()
{
// To use butl::to_stream() later on.
//
#ifndef _WIN32
tzset ();
#else
_tzset ();
#endif
// Invalid %[].
//
assert (fail ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S%["));
assert (fail ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S%[."));
assert (fail ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S%[.U"));
assert (fail ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S%[.A]"));
assert (fail ("Apr 08 19:31:10 2016", "%d %H:%M:%S%[.U] %Y"));
assert (fail ("2016-10-20 11:12:13.123456789", "%Y-%m-%d %H:%M:%S%[N]"));
// Invalid fraction of a second.
//
assert (fail ("Apr 08 19:31:10. 2016", "%b %d %H:%M:%S%[.U] %Y"));
assert (fail ("Apr 08 19:31:10.1 2016", "%b %d %H:%M:%S%[.M] %Y"));
assert (fail ("Apr 08 19:31:10.12 2016", "%b %d %H:%M:%S%[.M] %Y"));
assert (fail ("Apr 08 19:31:10.", "%b %d %H:%M:%S%[.U] %Y"));
assert (fail ("Apr 08 19:31:10.1", "%b %d %H:%M:%S%[.M] %Y"));
assert (fail ("Apr 08 19:31:10.12", "%b %d %H:%M:%S%[.M] %Y"));
// Input is not fully parsed.
//
assert (fail (
"Feb 21 19:31:10.123456789 2016 GMT", "%b %d %H:%M:%S%[.N] %Y"));
// Invalid input (%[] unrelated).
//
assert (fail ("Apr 08 19:31:10.123456789 ABC", "%b %d %H:%M:%S%[.N] %Y"));
// This doesn't work in VC15 because their implementation of std::get_time()
// has a bug. Due to this bug std::get_time() parses the input
// "Apr 19:31:10 2016" for the format "%b %d %H:%M:%S %Y" as if the input were
// "Apr 19 00:31:10 2016".
//
#if !defined(_MSC_VER) || _MSC_VER >= 1920
assert (fail ("Apr 19:31:10 2016", "%b %d %H:%M:%S %Y"));
assert (fail (":31 2016", "%H:%M %Y"));
#endif
assert (fail ("Opr 08 19:31:10 2016", "%b %d %H:%M:%S %Y"));
// Parse valid input with a valid format.
//
assert (parse (
"Apr 18 19:31:10 2016", "%b %d %H:%M:%S %Y", "Apr 18 19:31:10 2016"));
assert (parse ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S %Y"));
assert (parse ("2016-04-08 19:31:10", "%Y-%m-%d %H:%M:%S"));
assert (parse ("ABC=Apr 18 19:31:10 2016 ABC", "ABC=%b %d %H:%M:%S %Y"));
assert (parse ("ABC=2016-04-08 19:31:10 ABC", "ABC=%Y-%m-%d %H:%M:%S"));
assert (parse ("Feb 11 19:31:10 2016 GMT", "%b %d %H:%M:%S%[.N] %Y"));
assert (parse ("2016-02-11 19:31:10 GMT", "%Y-%m-%d %H:%M:%S%[.N]"));
assert (parse ("Feb 21 19:31:10.384902285 2016 GMT",
"%b %d %H:%M:%S%[.N] %Y",
"Feb 21 19:31:10." + ns (384902285) + " 2016 GMT"));
assert (parse ("2016-02-21 19:31:10.384902285 GMT",
"%Y-%m-%d %H:%M:%S%[.N]",
"2016-02-21 19:31:10." + ns (384902285) + " GMT"));
assert (parse ("Feb 21 19:31:10 .384902285 2016 GMT",
"%b %d %H:%M:%S %[.N] %Y",
"Feb 21 19:31:10 ." + ns (384902285) + " 2016 GMT"));
assert (parse ("2016-02-21 19:31:10 .384902285 GMT",
"%Y-%m-%d %H:%M:%S %[.N]",
"2016-02-21 19:31:10 ." + ns (384902285) + " GMT"));
assert (parse (
"2016-02-21 19:31:10 .384902285 GMT",
"%Y-%m-%d %H:%M:%S %[.N]",
"2016-02-21 19:31:10 ." + ns (384902285) + " GMT"));
assert (parse (
"2016-02-21 19:31:10 .384902285 GMT",
"%Y-%m-%d %H:%M:%S %[.N]",
"2016-02-21 19:31:10 ." + ns (384902285) + " GMT"));
assert (parse ("Feb 21 19:31:10 .384902285NS 2016 GMT",
"%b %d %H:%M:%S %[.N]NS %Y",
"Feb 21 19:31:10 ." + ns (384902285) + "NS 2016 GMT"));
assert (parse ("2016-02-21 19:31:10 .384902285NS GMT",
"%Y-%m-%d %H:%M:%S %[.N]NS",
"2016-02-21 19:31:10 ." + ns (384902285) + "NS GMT"));
assert (parse (".384902285 Feb 21 19:31:10 2016",
"%[.N] %b %d %H:%M:%S %Y",
"." + ns (384902285) + " Feb 21 19:31:10 2016"));
assert (parse (".384902285 2016-02-21 19:31:10",
"%[.N] %Y-%m-%d %H:%M:%S",
"." + ns (384902285) + " 2016-02-21 19:31:10"));
assert (parse (".3849022852016-02-21 19:31:10",
"%[.N]%Y-%m-%d %H:%M:%S",
"." + ns (384902285) + "2016-02-21 19:31:10"));
// setlocale (LC_ALL, "");
// setlocale (LC_ALL, "de_DE.utf-8");
// setlocale (LC_ALL, "de-de");
// setlocale (LC_ALL, "German_Germany.1252");
// locale::global (locale (""));
// locale::global (locale ("de_DE.utf-8"));
/*
assert (parse ("Mai 11 19:31:10 2016 GMT", "%b %d %H:%M:%S%[.N] %Y"));
locale::global (locale ("C"));
*/
// @@ When debuging strptime() fallback implementation compiled with GCC
// 5.3.1, the following asserts will fail due to bugs in implementation
// of std::get_time() manipulator. So need to be commented out.
//
assert (fail ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S %Y %"));
// Error is not detected on FreeBSD 11 with Clang/libc++ 3.8.0.
//
#ifndef __FreeBSD__
assert (fail ("Apr 08 19:31:10", "%b %d %H:%M:%S %Y"));
#endif
assert (parse (
"Apr 8 19:31:10 2016", "%b %d %H:%M:%S %Y", "Apr 08 19:31:10 2016"));
}
|
