glastree_on_gitea

vendor/theseer/tokenizer/src/XMLSerializer.php

@@ -0,0 +1,83 @@
+<?php declare(strict_types = 1);
+namespace TheSeer\Tokenizer;
+
+use DOMDocument;
+use XMLWriter;
+use function count;
+use const ENT_DISALLOWED;
+use const ENT_NOQUOTES;
+use const ENT_XML1;
+
+class XMLSerializer {
+    /** @var NamespaceUri */
+    private $xmlns;
+
+    /**
+     * XMLSerializer constructor.
+     */
+    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 {
+        $writer = new XMLWriter();
+        $writer->openMemory();
+        $writer->setIndent(true);
+
+        $writer->startDocument();
+        $this->appendToWriter($writer, $tokens);
+        $writer->endDocument();
+
+        return $writer->outputMemory();
+    }
+
+    public function appendToWriter(XMLWriter $writer, TokenCollection $tokens): void {
+        $writer->startElement('source');
+        $writer->writeAttribute('xmlns', $this->xmlns->asString());
+
+        if (count($tokens) > 0) {
+            $writer->startElement('line');
+            $writer->writeAttribute('no', '1');
+
+            $iterator      = $tokens->getIterator();
+            $previousToken = $iterator->current();
+            $previousLine  = $previousToken->getLine();
+
+            foreach ($iterator as $token) {
+                $line = $token->getLine();
+
+                if ($previousLine < $line) {
+                    $writer->endElement();
+
+                    $writer->startElement('line');
+                    $writer->writeAttribute('no', (string)$line);
+                    $previousLine = $line;
+                }
+
+                $value = $token->getValue();
+
+                if ($value !== '') {
+                    $writer->startElement('token');
+                    $writer->writeAttribute('name', $token->getName());
+                    $writer->writeRaw(htmlspecialchars($value, ENT_NOQUOTES | ENT_DISALLOWED | ENT_XML1));
+                    $writer->endElement();
+                }
+            }
+
+            $writer->endElement();
+        }
+
+        $writer->endElement();
+    }
+}