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<?php |
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namespace XmlSchemaValidator; |
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/** |
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* This is an utility class to keep a set of strings |
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* Does not throw any error or warning |
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* Convert objects to strings and any invalid argument is casted as an empty string |
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* Does not allow to add an empty string |
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* |
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* @access private |
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* @package XmlSchemaValidator |
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*/ |
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class SetStrings implements \Countable, \IteratorAggregate |
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{ |
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/** @var array */ |
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protected $members; |
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public function __construct(array $members = []) |
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{ |
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$this->clear(); |
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$this->addAll($members); |
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} |
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public function clear() |
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{ |
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$this->members = []; |
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} |
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public function addAll(array $members) |
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{ |
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foreach ($members as $member) { |
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$this->add($member); |
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} |
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} |
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public function all() |
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{ |
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return array_keys($this->members); |
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} |
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public function add($member) |
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{ |
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$member = $this->cast($member); |
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if ('' === $member) { |
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return false; |
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} |
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if ($this->contains($member)) { |
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return false; |
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} |
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$this->members[$member] = null; |
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return true; |
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} |
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public function cast($member) |
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{ |
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if (is_object($member)) { |
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$member = is_callable([$member, '__toString']) ? (string) $member : ''; |
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} |
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return strval($member); |
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} |
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public function contains($member) |
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{ |
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$member = $this->cast($member); |
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return array_key_exists($member, $this->members); |
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} |
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public function remove($member) |
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{ |
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$member = $this->cast($member); |
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unset($this->members[$member]); |
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} |
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public function getIterator() |
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{ |
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return new \ArrayIterator($this->all()); |
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} |
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public function count() |
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{ |
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return count($this->members); |
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} |
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} |
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eclipxe13 /
XmlSchemaValidator
