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<?php |
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declare(strict_types = 1); |
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namespace Gettext; |
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use JsonSerializable; |
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use IteratorAggregate; |
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use ArrayIterator; |
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use Countable; |
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use InvalidArgumentException; |
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/** |
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* Class to manage the headers of translations. |
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*/ |
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class Headers implements JsonSerializable, Countable, IteratorAggregate |
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{ |
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const HEADER_LANGUAGE = 'Language'; |
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const HEADER_PLURAL = 'Plural-Forms'; |
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const HEADER_DOMAIN = 'X-Domain'; |
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protected $headers = []; |
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public function set(string $name, string $value): self |
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{ |
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$this->headers[$name] = trim($value); |
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return $this; |
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} |
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public function get(string $name): ?string |
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{ |
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return $this->headers[$name] ?? null; |
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} |
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public function delete(string $name): self |
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{ |
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unset($this->headers[$name]); |
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return $this; |
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} |
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public function clear(): self |
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{ |
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$this->headers = []; |
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return $this; |
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} |
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public function sort(): self |
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{ |
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ksort($this->headers); |
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return $this; |
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} |
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public function jsonSerialize() |
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{ |
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return $this->toArray(); |
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} |
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public function getIterator() |
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{ |
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return new ArrayIterator($this->toArray()); |
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} |
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public function count(): int |
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{ |
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return count($this->headers); |
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} |
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public function setLanguage(string $language): self |
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{ |
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return $this->set(self::HEADER_LANGUAGE, $language); |
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} |
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public function getLanguage(): ?string |
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{ |
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return $this->get(self::HEADER_LANGUAGE); |
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} |
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public function setDomain(string $domain): self |
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{ |
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return $this->set(self::HEADER_DOMAIN, $domain); |
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} |
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public function getDomain(): ?string |
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{ |
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return $this->get(self::HEADER_DOMAIN); |
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} |
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public function setPluralForm(int $count, string $rule): self |
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{ |
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if (preg_match('/[a-z]/i', str_replace('n', '', $rule))) { |
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throw new InvalidArgumentException(sprintf('Invalid Plural form: "%s"', $rule)); |
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} |
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return $this->set(self::HEADER_PLURAL, sprintf('nplurals=%d; plural=%s;', $count, $rule)); |
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} |
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/** |
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* Returns the parsed plural definition. |
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* |
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* @param null|array [count, rule] |
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*/ |
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public function getPluralForm(): ?array |
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{ |
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$header = $this->get(self::HEADER_PLURAL); |
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if (!empty($header) && preg_match('/^nplurals\s*=\s*(\d+)\s*;\s*plural\s*=\s*([^;]+)\s*;$/', $header, $matches)) { |
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return [intval($matches[1]), $matches[2]]; |
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} |
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return null; |
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} |
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public function toArray(): array |
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{ |
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return $this->headers; |
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} |
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} |
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oscarotero /
Gettext
