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<?php |
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namespace Palmtree\Csv\Normalizer; |
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/** |
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* BooleanNormalizer formats a CSV cell as a boolean. |
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*/ |
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class BooleanNormalizer extends AbstractNormalizer |
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{ |
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/** |
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* @var array Default truthy/falsey pairs. |
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*/ |
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public static $defaultPairs = [ |
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'true' => 'false', |
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'1' => '0', |
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'on' => 'off', |
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'yes' => 'no', |
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'enabled' => 'disabled', |
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]; |
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/** @var array */ |
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private $values = []; |
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/** @var bool */ |
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private $nullable = false; |
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/** @var bool */ |
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private $caseSensitive = false; |
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public function __construct(NormalizerInterface $normalizer = null) |
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{ |
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$this->setPairs(self::$defaultPairs); |
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parent::__construct($normalizer); |
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} |
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public function setPairs(array $pairs): self |
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{ |
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$this->values = []; |
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foreach ($pairs as $truthy => $falsey) { |
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$this->addPair($truthy, $falsey); |
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} |
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return $this; |
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} |
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public function addPair(string $truthy, string $falsey): void |
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{ |
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if (!$this->caseSensitive) { |
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$truthy = \strtolower($truthy); |
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$falsey = \strtolower($falsey); |
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} |
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$this->values[$truthy] = true; |
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$this->values[$falsey] = false; |
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} |
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public function getValues(): array |
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{ |
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return $this->values; |
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} |
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/** |
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* @return bool|null |
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*/ |
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protected function getNormalizedValue(string $value) |
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{ |
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$value = \trim($value); |
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if (!$this->caseSensitive) { |
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$value = \strtolower($value); |
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} |
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if (isset($this->values[$value])) { |
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return $this->values[$value]; |
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} |
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return $this->nullable ? null : false; |
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} |
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/** |
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* Sets whether a case-sensitive comparison should be made. If this is true, 'Enabled' will not match 'enabled' |
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* and will return false if it is found (or null if isNullable is true). Defaults to false. |
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*/ |
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public function setCaseSensitive(bool $caseSensitive): self |
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{ |
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$this->caseSensitive = $caseSensitive; |
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return $this; |
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} |
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public function isCaseSensitive(): bool |
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{ |
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return $this->caseSensitive; |
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} |
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/** |
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* Sets whether the returned value can be null. Defaults to false, meaning any value present that is |
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* not found in the truthy values will return false. |
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*/ |
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public function setNullable(bool $nullable): self |
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{ |
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$this->nullable = $nullable; |
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return $this; |
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} |
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public function isNullable(): bool |
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{ |
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return $this->nullable; |
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} |
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} |
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palmtreephp /
csv
