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<?php declare(strict_types = 1); namespace TheSeer\Tokenizer; use DOMDocument; class XMLSerializer { /** @var \XMLWriter */ private $writer; /** @var Token */ private $previousToken; /** @var NamespaceUri */ private $xmlns; /** * XMLSerializer constructor. * * @param NamespaceUri $xmlns */ public function __construct(NamespaceUri $xmlns = null) { if ($xmlns === null) { $xmlns = new NamespaceUri('https://github.com/theseer/tokenizer'); } $this->xmlns = $xmlns; } public function toDom(TokenCollection $tokens): DOMDocument { $dom = new DOMDocument(); $dom->preserveWhiteSpace = false; $dom->loadXML($this->toXML($tokens)); return $dom; } public function toXML(TokenCollection $tokens): string { $this->writer = new \XMLWriter(); $this->writer->openMemory(); $this->writer->setIndent(true); $this->writer->startDocument(); $this->writer->startElement('source'); $this->writer->writeAttribute('xmlns', $this->xmlns->asString()); if (\count($tokens) > 0) { $this->writer->startElement('line'); $this->writer->writeAttribute('no', '1'); $this->previousToken = $tokens[0]; foreach ($tokens as $token) { $this->addToken($token); } } $this->writer->endElement(); $this->writer->endElement(); $this->writer->endDocument(); return $this->writer->outputMemory(); } private function addToken(Token $token): void { if ($this->previousToken->getLine() < $token->getLine()) { $this->writer->endElement(); $this->writer->startElement('line'); $this->writer->writeAttribute('no', (string)$token->getLine()); $this->previousToken = $token; } if ($token->getValue() !== '') { $this->writer->startElement('token'); $this->writer->writeAttribute('name', $token->getName()); $this->writer->writeRaw(\htmlspecialchars($token->getValue(), \ENT_NOQUOTES | \ENT_DISALLOWED | \ENT_XML1)); $this->writer->endElement(); } } }