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