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<?php
/**
* SCSSPHP
*
* @copyright 2012-2019 Leaf Corcoran
*
* @license http://opensource.org/licenses/MIT MIT
*
* @link http://scssphp.github.io/scssphp
*/
namespace ScssPhp\ScssPhp\SourceMap;
/**
* Base 64 Encode/Decode
*
* @author Anthon Pang <anthon.pang@gmail.com>
*/
class Base64
{
/**
* @var array
*/
private static $encodingMap = [
0 => 'A',
1 => 'B',
2 => 'C',
3 => 'D',
4 => 'E',
5 => 'F',
6 => 'G',
7 => 'H',
8 => 'I',
9 => 'J',
10 => 'K',
11 => 'L',
12 => 'M',
13 => 'N',
14 => 'O',
15 => 'P',
16 => 'Q',
17 => 'R',
18 => 'S',
19 => 'T',
20 => 'U',
21 => 'V',
22 => 'W',
23 => 'X',
24 => 'Y',
25 => 'Z',
26 => 'a',
27 => 'b',
28 => 'c',
29 => 'd',
30 => 'e',
31 => 'f',
32 => 'g',
33 => 'h',
34 => 'i',
35 => 'j',
36 => 'k',
37 => 'l',
38 => 'm',
39 => 'n',
40 => 'o',
41 => 'p',
42 => 'q',
43 => 'r',
44 => 's',
45 => 't',
46 => 'u',
47 => 'v',
48 => 'w',
49 => 'x',
50 => 'y',
51 => 'z',
52 => '0',
53 => '1',
54 => '2',
55 => '3',
56 => '4',
57 => '5',
58 => '6',
59 => '7',
60 => '8',
61 => '9',
62 => '+',
63 => '/',
];
/**
* @var array
*/
private static $decodingMap = [
'A' => 0,
'B' => 1,
'C' => 2,
'D' => 3,
'E' => 4,
'F' => 5,
'G' => 6,
'H' => 7,
'I' => 8,
'J' => 9,
'K' => 10,
'L' => 11,
'M' => 12,
'N' => 13,
'O' => 14,
'P' => 15,
'Q' => 16,
'R' => 17,
'S' => 18,
'T' => 19,
'U' => 20,
'V' => 21,
'W' => 22,
'X' => 23,
'Y' => 24,
'Z' => 25,
'a' => 26,
'b' => 27,
'c' => 28,
'd' => 29,
'e' => 30,
'f' => 31,
'g' => 32,
'h' => 33,
'i' => 34,
'j' => 35,
'k' => 36,
'l' => 37,
'm' => 38,
'n' => 39,
'o' => 40,
'p' => 41,
'q' => 42,
'r' => 43,
's' => 44,
't' => 45,
'u' => 46,
'v' => 47,
'w' => 48,
'x' => 49,
'y' => 50,
'z' => 51,
0 => 52,
1 => 53,
2 => 54,
3 => 55,
4 => 56,
5 => 57,
6 => 58,
7 => 59,
8 => 60,
9 => 61,
'+' => 62,
'/' => 63,
];
/**
* Convert to base64
*
* @param integer $value
*
* @return string
*/
public static function encode($value)
{
return self::$encodingMap[$value];
}
/**
* Convert from base64
*
* @param string $value
*
* @return integer
*/
public static function decode($value)
{
return self::$decodingMap[$value];
}
}