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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* JS implementation of the deprecated Date.toLocaleFormat.
* aFormat follows strftime syntax,
* http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html
*/
import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
const lazy = {};
XPCOMUtils.defineLazyGetter(
lazy,
"dateTimeFormatter",
() =>
new Services.intl.DateTimeFormat(undefined, {
dateStyle: "full",
timeStyle: "long",
})
);
XPCOMUtils.defineLazyGetter(
lazy,
"dateFormatter",
() =>
new Services.intl.DateTimeFormat(undefined, {
dateStyle: "full",
})
);
XPCOMUtils.defineLazyGetter(
lazy,
"timeFormatter",
() =>
new Services.intl.DateTimeFormat(undefined, {
timeStyle: "long",
})
);
function Day(t) {
return Math.floor(t.valueOf() / 86400000);
}
function DayFromYear(y) {
return (
365 * (y - 1970) +
Math.floor((y - 1969) / 4) -
Math.floor((y - 1901) / 100) +
Math.floor((y - 1601) / 400)
);
}
function DayWithinYear(t) {
return Day(t) - DayFromYear(t.getFullYear());
}
function weekday(aDate, option) {
return aDate.toLocaleString(undefined, { weekday: option });
}
function month(aDate, option) {
return aDate.toLocaleString(undefined, { month: option });
}
function hourMinSecTwoDigits(aDate) {
return aDate.toLocaleString(undefined, {
hour: "2-digit",
minute: "2-digit",
second: "2-digit",
});
}
function dayPeriod(aDate) {
let dtf = Intl.DateTimeFormat(undefined, { hour: "2-digit" });
let dayPeriodPart =
dtf.resolvedOptions().hour12 &&
dtf.formatToParts(aDate).find(part => part.type === "dayPeriod");
return dayPeriodPart ? dayPeriodPart.value : "";
}
function weekNumber(aDate, weekStart) {
let day = aDate.getDay();
if (weekStart) {
day = (day || 7) - weekStart;
}
return Math.max(Math.floor((DayWithinYear(aDate) + 7 - day) / 7), 0);
}
function weekNumberISO(t) {
let thisWeek = weekNumber(1, t);
let firstDayOfYear = (new Date(t.getFullYear(), 0, 1).getDay() || 7) - 1;
if (thisWeek === 0 && firstDayOfYear >= 4) {
return weekNumberISO(new Date(t.getFullYear() - 1, 11, 31));
}
if (t.getMonth() === 11 && t.getDate() - ((t.getDay() || 7) - 1) >= 29) {
return 1;
}
return thisWeek + (firstDayOfYear > 0 && firstDayOfYear < 4);
}
function weekYearISO(aDate) {
let thisWeek = weekNumber(1, aDate);
let firstDayOfYear = (new Date(aDate.getFullYear(), 0, 1).getDay() || 7) - 1;
if (thisWeek === 0 && firstDayOfYear >= 4) {
return aDate.getFullYear() - 1;
}
if (
aDate.getMonth() === 11 &&
aDate.getDate() - ((aDate.getDay() || 7) - 1) >= 29
) {
return aDate.getFullYear() + 1;
}
return aDate.getFullYear();
}
function timeZoneOffset(aDate) {
let offset = aDate.getTimezoneOffset();
let tzoff = Math.floor(Math.abs(offset) / 60) * 100 + (Math.abs(offset) % 60);
return (offset < 0 ? "+" : "-") + String(tzoff).padStart(4, "0");
}
function timeZone(aDate) {
let dtf = Intl.DateTimeFormat(undefined, { timeZoneName: "short" });
let timeZoneNamePart = dtf
.formatToParts(aDate)
.find(part => part.type === "timeZoneName");
return timeZoneNamePart ? timeZoneNamePart.value : "";
}
const formatFunctions = {
a: aDate => weekday(aDate, "short"),
A: aDate => weekday(aDate, "long"),
b: aDate => month(aDate, "short"),
B: aDate => month(aDate, "long"),
c: aDate => lazy.dateTimeFormatter.format(aDate),
C: aDate => String(Math.trunc(aDate.getFullYear() / 100)),
d: aDate => String(aDate.getDate()),
D: aDate => ToLocaleFormat("%m/%d/%y", aDate),
e: aDate => String(aDate.getDate()),
F: aDate => ToLocaleFormat("%Y-%m-%d", aDate),
g: aDate => String(weekYearISO(aDate) % 100),
G: aDate => String(weekYearISO(aDate)),
h: aDate => month(aDate, "short"),
H: aDate => String(aDate.getHours()),
I: aDate => String(aDate.getHours() % 12 || 12),
j: aDate => String(DayWithinYear(aDate) + 1),
k: aDate => String(aDate.getHours()),
l: aDate => String(aDate.getHours() % 12 || 12),
m: aDate => String(aDate.getMonth() + 1),
M: aDate => String(aDate.getMinutes()),
n: () => "\n",
p: aDate => dayPeriod(aDate).toLocaleUpperCase(),
P: aDate => dayPeriod(aDate).toLocaleLowerCase(),
r: aDate => hourMinSecTwoDigits(aDate),
R: aDate => ToLocaleFormat("%H:%M", aDate),
s: aDate => String(Math.trunc(aDate.getTime() / 1000)),
S: aDate => String(aDate.getSeconds()),
t: () => "\t",
T: aDate => ToLocaleFormat("%H:%M:%S", aDate),
u: aDate => String(aDate.getDay() || 7),
U: aDate => String(weekNumber(aDate, 0)),
V: aDate => String(weekNumberISO(aDate)),
w: aDate => String(aDate.getDay()),
W: aDate => String(weekNumber(aDate, 1)),
x: aDate => lazy.dateFormatter.format(aDate),
X: aDate => lazy.timeFormatter.format(aDate),
y: aDate => String(aDate.getFullYear() % 100),
Y: aDate => String(aDate.getFullYear()),
z: aDate => timeZoneOffset(aDate),
Z: aDate => timeZone(aDate),
"%": () => "%",
};
const padding = {
C: { fill: "0", width: 2 },
d: { fill: "0", width: 2 },
e: { fill: " ", width: 2 },
g: { fill: "0", width: 2 },
H: { fill: "0", width: 2 },
I: { fill: "0", width: 2 },
j: { fill: "0", width: 3 },
k: { fill: " ", width: 2 },
l: { fill: " ", width: 2 },
m: { fill: "0", width: 2 },
M: { fill: "0", width: 2 },
S: { fill: "0", width: 2 },
U: { fill: "0", width: 2 },
V: { fill: "0", width: 2 },
W: { fill: "0", width: 2 },
y: { fill: "0", width: 2 },
};
export function ToLocaleFormat(aFormat, aDate) {
// Modified conversion specifiers E and O are ignored.
let specifiers = Object.keys(formatFunctions).join("");
let pattern = RegExp(`%#?(\\^)?([0_-]\\d*)?(?:[EO])?([${specifiers}])`, "g");
return aFormat.replace(
pattern,
(matched, upperCaseFlag, fillWidthFlags, specifier) => {
let result = formatFunctions[specifier](aDate);
if (upperCaseFlag) {
result = result.toLocaleUpperCase();
}
let fill = specifier in padding ? padding[specifier].fill : "";
let width = specifier in padding ? padding[specifier].width : 0;
if (fillWidthFlags) {
let newFill = fillWidthFlags[0];
let newWidth = fillWidthFlags.match(/\d+/);
if (newFill === "-" && newWidth === null) {
fill = "";
} else {
fill = newFill === "0" ? "0" : " ";
width = newWidth !== null ? Number(newWidth) : width;
}
}
return result.padStart(width, fill);
}
);
}
|
