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<?php |
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namespace UCD\Unicode\Character; |
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use UCD\Unicode\Character; |
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use UCD\Unicode\Codepoint; |
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use UCD\Unicode\Codepoint\Range; |
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use UCD\Unicode\CodepointAssigned; |
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use UCD\Unicode\Collection\TraversableBackedCollection; |
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use UCD\Unicode\NonCharacter; |
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use UCD\Unicode\Surrogate; |
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class Collection extends TraversableBackedCollection |
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{ |
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/** |
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* @return Codepoint\Collection|Codepoint[] |
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*/ |
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public function extractCodepoints() |
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{ |
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return new Codepoint\Collection( |
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$this->yieldCodepoints() |
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); |
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} |
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/** |
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* @return \Generator |
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*/ |
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private function yieldCodepoints() |
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{ |
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/** @var CodepointAssigned $character */ |
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foreach ($this as $character) { |
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yield $character->getCodepoint(); |
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} |
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} |
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/** |
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* @return static|Character[] |
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*/ |
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public function onlyCharacters() |
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{ |
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return $this->filterWith(function (CodepointAssigned $assigned) { |
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return $assigned instanceof Character; |
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}); |
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} |
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/** |
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* @return static|NonCharacter[] |
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*/ |
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public function onlyNonCharacters() |
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{ |
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return $this->filterWith(function (CodepointAssigned $assigned) { |
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return $assigned instanceof NonCharacter; |
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}); |
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} |
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/** |
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* @return static|Surrogate[] |
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*/ |
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public function onlySurrogates() |
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{ |
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return $this->filterWith(function (CodepointAssigned $assigned) { |
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return $assigned instanceof Surrogate; |
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}); |
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} |
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} |
nick-jones /
php-ucd
