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
|
/*
Time formatting functions
Copyright (C) 1994-2022
Free Software Foundation, Inc.
Written by:
Miguel de Icaza, 1994, 1995, 1996
Janne Kukonlehto, 1994, 1995, 1996
Dugan Porter, 1994, 1995, 1996
Jakub Jelinek, 1994, 1995, 1996
Mauricio Plaza, 1994, 1995, 1996
The file_date routine is mostly from GNU's fileutils package,
written by Richard Stallman and David MacKenzie.
This file is part of the Midnight Commander.
The Midnight Commander is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
The Midnight Commander is distributed in the hope that it will be useful,
but WITHOUT 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
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file
* \brief Source: time formatting functions
*/
#include <config.h>
#include <stdlib.h>
#include <limits.h> /* MB_LEN_MAX */
#include "lib/global.h"
#include "lib/strutil.h"
#include "lib/timefmt.h"
/*** global variables ****************************************************************************/
char *user_recent_timeformat = NULL; /* time format string for recent dates */
char *user_old_timeformat = NULL; /* time format string for older dates */
/*** file scope macro definitions ****************************************************************/
/*** file scope type declarations ****************************************************************/
/*** file scope variables ************************************************************************/
/*
* Cache variable for the i18n_checktimelength function,
* initially set to a clearly invalid value to show that
* it hasn't been initialized yet.
*/
static size_t i18n_timelength_cache = MAX_I18NTIMELENGTH + 1;
/*** file scope functions ************************************************************************/
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
/**
* Check strftime() results. Some systems (i.e. Solaris) have different
* short-month and month name sizes for different locales
*/
size_t
i18n_checktimelength (void)
{
size_t length = 0;
time_t testtime;
struct tm *lt;
if (i18n_timelength_cache <= MAX_I18NTIMELENGTH)
return i18n_timelength_cache;
testtime = time (NULL);
lt = localtime (&testtime);
if (lt == NULL)
{
/* huh, localtime() doesnt seem to work ... falling back to "(invalid)" */
length = str_term_width1 (_(INVALID_TIME_TEXT));
}
else
{
char buf[MB_LEN_MAX * MAX_I18NTIMELENGTH + 1];
size_t tlen;
/* We are interested in the longest possible date */
lt->tm_sec = lt->tm_min = lt->tm_hour = lt->tm_mday = 10;
/* Loop through all months to find out the longest one */
for (lt->tm_mon = 0; lt->tm_mon < 12; lt->tm_mon++)
{
strftime (buf, sizeof (buf) - 1, user_recent_timeformat, lt);
tlen = (size_t) str_term_width1 (buf);
length = MAX (tlen, length);
strftime (buf, sizeof (buf) - 1, user_old_timeformat, lt);
tlen = (size_t) str_term_width1 (buf);
length = MAX (tlen, length);
}
tlen = (size_t) str_term_width1 (_(INVALID_TIME_TEXT));
length = MAX (tlen, length);
}
/* Don't handle big differences. Use standard value (email bug, please) */
if (length > MAX_I18NTIMELENGTH || length < MIN_I18NTIMELENGTH)
length = STD_I18NTIMELENGTH;
/* Save obtained value to the cache */
i18n_timelength_cache = length;
return i18n_timelength_cache;
}
/* --------------------------------------------------------------------------------------------- */
const char *
file_date (time_t when)
{
static char timebuf[MB_LEN_MAX * MAX_I18NTIMELENGTH + 1];
time_t current_time = time (NULL);
const char *fmt;
if (current_time > when + 6L * 30L * 24L * 60L * 60L /* Old. */
|| current_time < when - 60L * 60L) /* In the future. */
/* The file is fairly old or in the future.
POSIX says the cutoff is 6 months old;
approximate this by 6*30 days.
Allow a 1 hour slop factor for what is considered "the future",
to allow for NFS server/client clock disagreement.
Show the year instead of the time of day. */
fmt = user_old_timeformat;
else
fmt = user_recent_timeformat;
FMT_LOCALTIME (timebuf, sizeof (timebuf), fmt, when);
return timebuf;
}
/* --------------------------------------------------------------------------------------------- */
|
