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
|
<?php
namespace LesserPHP\Functions;
use Exception;
use LesserPHP\Utils\Asserts;
use LesserPHP\Utils\Util;
/**
* Implements the miscellaneous functions for LESS
*
* @link https://lesscss.org/functions/#misc-functions
*/
class Misc extends AbstractFunctionCollection
{
/** @inheritdoc */
public function getFunctions(): array
{
return [
//'color' => [$this, 'color'],
//'image-size' => [$this, 'imageSize'],
//'image-width' => [$this, 'imageWidth'],
//'image-height' => [$this, 'imageHeight'],
'convert' => [$this, 'convert'],
'data-uri' => [$this, 'dataUri'],
//'default' => [$this, 'default'],
'unit' => [$this, 'unit'],
//'get-unit' => [$this, 'getUnit'],
//'svg-gradient' => [$this, 'svgGradient'],
];
}
// color is missing
// image-size is missing
// image-width is missing
// image-height is missing
/**
* Convert a number from one unit into another
*
* @link https://lesscss.org/functions/#misc-functions-convert
* @throws Exception
*/
public function convert(array $args): array
{
[$value, $to] = Asserts::assertArgs($args, 2, 'convert');
// If it's a keyword, grab the string version instead
if (is_array($to) && $to[0] == 'keyword') {
$to = $to[1];
}
return Util::convert($value, $to);
}
/**
* Given an url, decide whether to output a regular link or the base64-encoded contents of the file
*
* @param array $value either an argument list (two strings) or a single string
* @return string formatted url(), either as a link or base64-encoded
*/
public function dataUri(array $value): string
{
$mime = ($value[0] === 'list') ? $value[2][0][2] : null;
$url = ($value[0] === 'list') ? $value[2][1][2][0] : $value[2][0];
$fullpath = $this->lessc->findImport($url);
if ($fullpath && ($fsize = filesize($fullpath)) !== false) {
// IE8 can't handle data uris larger than 32KB
if ($fsize / 1024 < 32) {
if (is_null($mime)) {
if (class_exists('finfo')) { // php 5.3+
$finfo = new \finfo(FILEINFO_MIME);
$mime = explode('; ', $finfo->file($fullpath));
$mime = $mime[0];
} elseif (function_exists('mime_content_type')) { // PHP 5.2
$mime = mime_content_type($fullpath);
}
}
if (!is_null($mime)) // fallback if the mime type is still unknown
$url = sprintf('data:%s;base64,%s', $mime, base64_encode(file_get_contents($fullpath)));
}
}
return 'url("' . $url . '")';
}
// default is missing
/**
* Remove or change the unit of a dimension
*
* @link https://lesscss.org/functions/#misc-functions-unit
* @throws Exception
*/
public function unit(array $arg): array
{
if ($arg[0] == 'list') {
[$number, $newUnit] = $arg[2];
return [
'number',
Asserts::assertNumber($number),
$this->lessc->compileValue($this->lessc->unwrap($newUnit))
];
} else {
return ['number', Asserts::assertNumber($arg), ''];
}
}
// get-unit is missing
// svg-gradient is missing
}
|
