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
|
<?php
namespace libphonenumber;
/**
* Matcher for various regex matching
*
* Note that this is NOT the same as google's java PhoneNumberMatcher class.
* This class is a minimal port of java's built-in matcher class, whereas PhoneNumberMatcher
* is designed to recognize phone numbers embedded in any text.
*
* @internal
*/
class Matcher
{
/**
* @var string
*/
protected $pattern;
/**
* @var string
*/
protected $subject;
/**
* @var array
*/
protected $groups = array();
private $searchIndex = 0;
/**
* @param string $pattern
* @param string $subject
*/
public function __construct($pattern, $subject)
{
$this->pattern = str_replace('/', '\/', $pattern);
$this->subject = $subject;
}
protected function doMatch($type = 'find', $offset = 0)
{
$final_pattern = '(?:' . $this->pattern . ')';
switch ($type) {
case 'matches':
$final_pattern = '^' . $final_pattern . '$';
break;
case 'lookingAt':
$final_pattern = '^' . $final_pattern;
break;
case 'find':
default:
// no changes
break;
}
$final_pattern = '/' . $final_pattern . '/ui';
$search = mb_substr($this->subject, $offset);
$result = preg_match($final_pattern, $search, $groups, PREG_OFFSET_CAPTURE);
if ($result === 1) {
// Expand $groups into $this->groups, but being multi-byte aware
$positions = array();
foreach ($groups as $group) {
$positions[] = array(
$group[0],
$offset + mb_strlen(mb_strcut($search, 0, $group[1]))
);
}
$this->groups = $positions;
}
return ($result === 1);
}
/**
* @return bool
*/
public function matches()
{
return $this->doMatch('matches');
}
/**
* @return bool
*/
public function lookingAt()
{
return $this->doMatch('lookingAt');
}
/**
* @return bool
*/
public function find($offset = null)
{
if ($offset === null) {
$offset = $this->searchIndex;
}
// Increment search index for the next time we call this
$this->searchIndex++;
return $this->doMatch('find', $offset);
}
/**
* @return int
*/
public function groupCount()
{
if (empty($this->groups)) {
return null;
}
return count($this->groups) - 1;
}
/**
* @param int $group
* @return string
*/
public function group($group = null)
{
if ($group === null) {
$group = 0;
}
return isset($this->groups[$group][0]) ? $this->groups[$group][0] : null;
}
/**
* @param int|null $group
* @return int
*/
public function end($group = null)
{
if ($group === null) {
$group = 0;
}
if (!isset($this->groups[$group])) {
return null;
}
return $this->groups[$group][1] + mb_strlen($this->groups[$group][0]);
}
public function start($group = null)
{
if ($group === null) {
$group = 0;
}
if (!isset($this->groups[$group])) {
return null;
}
return $this->groups[$group][1];
}
/**
* @param string $replacement
* @return string
*/
public function replaceFirst($replacement)
{
return preg_replace('/' . $this->pattern . '/x', $replacement, $this->subject, 1);
}
/**
* @param string $replacement
* @return string
*/
public function replaceAll($replacement)
{
return preg_replace('/' . $this->pattern . '/x', $replacement, $this->subject);
}
/**
* @param string $input
* @return Matcher
*/
public function reset($input = '')
{
$this->subject = $input;
return $this;
}
}
|