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<?php |
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declare(strict_types=1); |
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/* |
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* soluble-flexstore library |
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* |
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* @author Vanvelthem Sébastien |
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* @link https://github.com/belgattitude/soluble-flexstore |
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* @copyright Copyright (c) 2016-2017 Vanvelthem Sébastien |
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* @license MIT License https://github.com/belgattitude/soluble-flexstore/blob/master/LICENSE.md |
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* |
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*/ |
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namespace Soluble\FlexStore\Formatter; |
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use Soluble\FlexStore\Exception; |
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use Soluble\FlexStore\I18n\LocalizableInterface; |
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use ArrayObject; |
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use Locale; |
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use NumberFormatter as IntlNumberFormatter; |
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class NumberFormatter implements FormatterInterface, LocalizableInterface, FormatterNumberInterface |
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{ |
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public const NO_BREAK_SPACE_HEX = 'c2a0'; |
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public const NARROW_NO_BREAK_SPACE_HEX = 'e280af'; |
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/** |
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* Formatter instances. |
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* |
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* @var array |
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*/ |
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protected $formatters = []; |
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/** |
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* @var array |
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*/ |
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protected $params = []; |
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/** |
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* @var array |
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*/ |
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protected $default_params = [ |
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'decimals' => 2, |
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'locale' => null, |
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'pattern' => null, |
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'force_non_breaking_whitespace' => false |
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]; |
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/** |
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* @param array $params |
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* |
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* @throws Exception\ExtensionNotLoadedException if ext/intl is not present |
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* @throws Exception\InvalidArgumentException |
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*/ |
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public function __construct(array $params = []) |
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{ |
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if (!extension_loaded('intl')) { |
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throw new Exception\ExtensionNotLoadedException(sprintf( |
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'%s component requires the intl PHP extension', |
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__NAMESPACE__ |
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)); |
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} |
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// As default locale may include unsupported |
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// variants (like 'en_US_POSIX' for example), |
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// only the 5 chars will be taken into consideration |
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$default_locale = Locale::getDefault(); |
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$this->default_params['locale'] = substr($default_locale, 0, 5); |
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$this->setParams($params); |
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} |
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/** |
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* @throws Exception\InvalidArgumentException |
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* |
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* @param array $params |
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*/ |
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protected function setParams($params) |
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{ |
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$this->params = $this->default_params; |
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foreach ($params as $name => $value) { |
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$method = 'set' . str_replace(' ', '', ucwords(str_replace('_', ' ', strtolower($name)))); |
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if (!method_exists($this, $method)) { |
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throw new Exception\InvalidArgumentException(__METHOD__ . " Parameter '$name' does not exists."); |
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} |
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$this->$method($value); |
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} |
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} |
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protected function initWhitespaceSeparator(IntlNumberFormatter $formatter): void |
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{ |
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if ($this->params['force_non_breaking_whitespace'] === true |
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&& in_array(bin2hex($formatter->getSymbol(IntlNumberFormatter::GROUPING_SEPARATOR_SYMBOL)), [ |
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self::NARROW_NO_BREAK_SPACE_HEX, |
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self::NO_BREAK_SPACE_HEX |
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], true)) { |
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$formatter->setSymbol(IntlNumberFormatter::GROUPING_SEPARATOR_SYMBOL, ' '); |
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} |
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} |
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protected function loadFormatterId(string $formatterId): void |
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{ |
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$locale = $this->params['locale']; |
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$formatter = new IntlNumberFormatter( |
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$locale, |
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IntlNumberFormatter::DECIMAL |
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); |
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$formatter->setAttribute(IntlNumberFormatter::FRACTION_DIGITS, $this->params['decimals']); |
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if ($this->params['pattern'] !== null) { |
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$formatter->setPattern($this->params['pattern']); |
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} |
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$this->initWhitespaceSeparator($formatter); |
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$this->formatters[$formatterId] = $formatter; |
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} |
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/** |
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* Format a number. |
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* |
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* @param float $number |
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* |
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* @return string |
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*/ |
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public function format($number, ArrayObject $row = null): string |
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{ |
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$locale = $this->params['locale']; |
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//$formatterId = md5($locale); |
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$formatterId = $locale . (string) $this->params['pattern']; |
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if (!array_key_exists($formatterId, $this->formatters)) { |
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$this->loadFormatterId($formatterId); |
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} |
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if (!is_numeric($number)) { |
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$this->throwNumberFormatterException($this->formatters[$formatterId], $number); |
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} |
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return $this->formatters[$formatterId]->format($number); |
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} |
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/** |
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* Throws an Exception when number cannot be formatted. |
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* |
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* @param IntlNumberFormatter $intlFormatter |
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* @param int|string|float $number |
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* |
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* @throws Exception\RuntimeException |
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*/ |
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protected function throwNumberFormatterException(IntlNumberFormatter $intlFormatter, $number): void |
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{ |
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$error_code = $intlFormatter->getErrorCode(); |
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if (is_scalar($number)) { |
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$val = (string) $number; |
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} else { |
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$val = 'type: ' . gettype($number); |
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} |
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throw new Exception\RuntimeException(__METHOD__ . " Cannot format value '$val', Intl/NumberFormatter error code: $error_code."); |
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} |
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/** |
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* Set locale to use instead of the default. |
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* |
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* @param string $locale |
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* |
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* @return NumberFormatter |
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*/ |
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public function setLocale($locale) |
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{ |
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$this->params['locale'] = $locale; |
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return $this; |
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} |
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/** |
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* Get the locale to use. |
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* |
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* @return string|null |
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*/ |
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public function getLocale() |
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{ |
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return $this->params['locale']; |
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} |
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/** |
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* Set decimals. |
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* |
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* @param int $decimals |
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* |
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* @return self |
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*/ |
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public function setDecimals($decimals) |
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{ |
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$this->params['decimals'] = $decimals; |
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return $this; |
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} |
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/** |
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* @return int |
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*/ |
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public function getDecimals() |
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{ |
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return $this->params['decimals']; |
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} |
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/** |
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* Set the number pattern, (#,##0.###, ....). |
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* |
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* @see http://php.net/manual/en/numberformatter.setpattern.php |
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* |
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* @param string $pattern |
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* |
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* @return NumberFormatter |
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*/ |
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public function setPattern($pattern) |
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{ |
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$this->params['pattern'] = $pattern; |
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return $this; |
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} |
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/** |
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* Get the number pattern. |
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* |
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* @return string|null |
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*/ |
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public function getPattern() |
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{ |
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return $this->params['pattern']; |
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} |
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} |
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belgattitude /
soluble-flexstore
