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