|
1
|
|
|
<?php namespace Gears\String\Methods; |
|
2
|
|
|
//////////////////////////////////////////////////////////////////////////////// |
|
3
|
|
|
// __________ __ ________ __________ |
|
4
|
|
|
// \______ \ |__ ______ / _____/ ____ _____ ______\______ \ _______ ___ |
|
5
|
|
|
// | ___/ | \\____ \/ \ ____/ __ \\__ \\_ __ \ | _// _ \ \/ / |
|
6
|
|
|
// | | | Y \ |_> > \_\ \ ___/ / __ \| | \/ | ( <_> > < |
|
7
|
|
|
// |____| |___| / __/ \______ /\___ >____ /__| |______ /\____/__/\_ \ |
|
8
|
|
|
// \/|__| \/ \/ \/ \/ \/ |
|
9
|
|
|
// ----------------------------------------------------------------------------- |
|
10
|
|
|
// Designed and Developed by Brad Jones <brad @="bjc.id.au" /> |
|
11
|
|
|
// ----------------------------------------------------------------------------- |
|
12
|
|
|
//////////////////////////////////////////////////////////////////////////////// |
|
13
|
|
|
|
|
14
|
|
|
use voku\helper\UTF8; |
|
15
|
|
|
|
|
16
|
|
|
trait Truncate |
|
17
|
|
|
{ |
|
18
|
|
|
/** |
|
19
|
|
|
* Truncates the string to a given length. |
|
20
|
|
|
* |
|
21
|
|
|
* If $substring is provided, and truncating occurs, the string is further |
|
22
|
|
|
* truncated so that the substring may be appended without exceeding the |
|
23
|
|
|
* desired length. |
|
24
|
|
|
* |
|
25
|
|
|
* @param int $length Desired length of the truncated string. |
|
26
|
|
|
* |
|
27
|
|
|
* @param string $substring The substring to append if it can fit. |
|
28
|
|
|
* |
|
29
|
|
|
* @return static String after truncating. |
|
30
|
|
|
*/ |
|
31
|
|
|
public function truncate($length, $substring = '') |
|
32
|
|
|
{ |
|
33
|
|
|
if ($length >= $this->getLength()) return $this; |
|
34
|
|
|
|
|
35
|
|
|
// Need to further trim the string so we can append the substring |
|
36
|
|
|
$substringLength = UTF8::strlen($substring, $this->encoding); |
|
37
|
|
|
$length -= $substringLength; |
|
38
|
|
|
|
|
39
|
|
|
$truncated = UTF8::substr |
|
40
|
|
|
( |
|
41
|
|
|
$this->scalarString, |
|
42
|
|
|
0, |
|
43
|
|
|
$length, |
|
44
|
|
|
$this->encoding |
|
45
|
|
|
); |
|
46
|
|
|
|
|
47
|
|
|
return $this->newSelf($truncated . $substring); |
|
48
|
|
|
} |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* Truncates the string to a given length, |
|
52
|
|
|
* while ensuring that it does not split words. |
|
53
|
|
|
* |
|
54
|
|
|
* If $substring is provided, and truncating occurs, the string is further |
|
55
|
|
|
* truncated so that the substring may be appended without exceeding the |
|
56
|
|
|
* desired length. |
|
57
|
|
|
* |
|
58
|
|
|
* @param int $length Desired length of the truncated string. |
|
59
|
|
|
* |
|
60
|
|
|
* @param string $substring The substring to append if it can fit. |
|
61
|
|
|
* |
|
62
|
|
|
* @return static |
|
63
|
|
|
*/ |
|
64
|
|
|
public function safeTruncate($length, $substring = '') |
|
65
|
|
|
{ |
|
66
|
|
|
if ($length >= $this->getLength()) return $this; |
|
67
|
|
|
|
|
68
|
|
|
// Need to further trim the string so we can append the substring |
|
69
|
|
|
$substringLength = UTF8::strlen($substring, $this->encoding); |
|
70
|
|
|
$length -= $substringLength; |
|
71
|
|
|
|
|
72
|
|
|
$truncated = UTF8::substr($this->scalarString, 0, $length, $this->encoding); |
|
73
|
|
|
|
|
74
|
|
|
// If the last word was truncated |
|
75
|
|
|
if (UTF8::strpos($this->scalarString, ' ', $length - 1, $this->encoding) != $length) |
|
76
|
|
|
{ |
|
77
|
|
|
// Find pos of the last occurrence of a space, get up to that |
|
78
|
|
|
$lastPos = UTF8::strrpos($truncated, ' ', 0, $this->encoding); |
|
79
|
|
|
if (!is_integer($lastPos)) $lastPos = 0; |
|
80
|
|
|
$truncated = UTF8::substr($truncated, 0, $lastPos, $this->encoding); |
|
81
|
|
|
} |
|
82
|
|
|
|
|
83
|
|
|
return $this->newSelf($truncated . $substring); |
|
84
|
|
|
} |
|
85
|
|
|
} |
|
86
|
|
|
|
phpgearbox /
string
