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<?php |
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/** |
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* (c) Steve Nebes <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace SN\RangeDifferencer\Tag; |
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use InvalidArgumentException; |
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/** |
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* An atom that represents a closing or opening tag. |
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*/ |
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class TagAtom implements AtomInterface |
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{ |
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/** @var string */ |
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private $identifier = ''; |
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/** @var string */ |
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private $internalIdentifiers = ''; |
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/** |
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* @param string $str |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function __construct(string $str) |
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{ |
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if (!$this->isValidAtom($str)) { |
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throw new InvalidArgumentException('The given string is not a valid tag.'); |
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} |
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// Remove the < and >. |
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$str = \mb_substr($str, 1, -1); |
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if (false !== $pos = \mb_strpos($str, ' ')) { |
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$this->identifier = \mb_substr($str, 0, $pos); |
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$this->internalIdentifiers = mb_substr($str, $pos + 1); |
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} else { |
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$this->identifier = $str; |
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} |
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} |
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/** {@inheritdoc} */ |
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public function getIdentifier(): string |
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{ |
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return $this->identifier; |
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} |
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/** {@inheritdoc} */ |
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public function getInternalIdentifiers(): string |
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{ |
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return $this->internalIdentifiers; |
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} |
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/** {@inheritdoc} */ |
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public function hasInternalIdentifiers(): bool |
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{ |
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return \mb_strlen($this->internalIdentifiers) > 0; |
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} |
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/** |
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* @param string $str |
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* @return bool |
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*/ |
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public static function isValidTag(string $str): bool |
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{ |
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return |
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0 === \mb_strrpos($str, '<') && |
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\mb_strpos($str, '>') === \mb_strlen($str) - 1 && |
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\mb_strlen($str) >= 3; |
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} |
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/** {@inheritdoc} */ |
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public function getFullText(): string |
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{ |
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$s = sprintf('<%s', $this->identifier); |
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if ($this->hasInternalIdentifiers()) { |
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$s .= sprintf(' %s', $this->internalIdentifiers); |
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} |
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return sprintf('%s>', $s); |
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} |
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/** {@inheritdoc} */ |
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public function isValidAtom(string $str): bool |
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{ |
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return self::isValidTag($str); |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString(): string |
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{ |
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return sprintf('TagAtom: %s', $this->getFullText()); |
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} |
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/** {@inheritdoc} */ |
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public function equalsIdentifier(AtomInterface $other): bool |
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{ |
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return $other->getIdentifier() === $this->identifier; |
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} |
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} |
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snebes /
range-differencer
