blob: 0c6577029f167877352f54a3a22e3fca93ab254b (
plain)
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
|
<?php
/**
* webtrees: online genealogy
* Copyright (C) 2026 webtrees development team
* This program 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.
* This program 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 <https://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace Fisharebest\Webtrees\Encodings;
use function chr;
use function intdiv;
use function ord;
/**
* Convert between UTF-16LE and UTF-8.
*/
class UTF16LE extends AbstractUTF16Encoding
{
public const string NAME = 'UTF-16LE';
public const string BYTE_ORDER_MARK = "\xFF\xFE";
public const string REPLACEMENT_CHARACTER = "\xFD\xFF";
/**
* Convert two bytes to a code-point, taking care of byte-order.
*
* @param string $character
*
* @return int
*/
protected function characterToCodePoint(string $character): int
{
return ord($character[0]) + 256 * ord($character[1]);
}
/**
* Convert a code-point to two bytes, taking care of byte-order.
*
* @param int $code_point
*
* @return string
*/
protected function codePointToCharacter(int $code_point): string
{
if ($code_point >= 0xD800 && $code_point <= 0xDFFF) {
return self::REPLACEMENT_CHARACTER;
}
return chr($code_point % 256) . chr(intdiv($code_point, 256));
}
}
|
