comparison vendor/symfony/css-selector/Parser/Tokenizer/Tokenizer.php @ 0:4c8ae668cc8c

Initial import (non-working)

+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[e-mail]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\Parser\Tokenizer;
+
+use Symfony\Component\CssSelector\Parser\Handler;
+use Symfony\Component\CssSelector\Parser\Reader;
+use Symfony\Component\CssSelector\Parser\Token;
+use Symfony\Component\CssSelector\Parser\TokenStream;
+
+/**
+ * CSS selector tokenizer.
+ *
+ * This component is a port of the Python cssselect library,
+ * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
+ *
+ * @author Jean-François Simon <[e-mail]>
+ *
+ * @internal
+ */
+class Tokenizer
+{
+    /**
+     * @var Handler\HandlerInterface[]
+     */
+    private $handlers;
+
+    /**
+     * Constructor.
+     */
+    public function __construct()
+    {
+        $patterns = new TokenizerPatterns();
+        $escaping = new TokenizerEscaping($patterns);
+
+        $this->handlers = array(
+            new Handler\WhitespaceHandler(),
+            new Handler\IdentifierHandler($patterns, $escaping),
+            new Handler\HashHandler($patterns, $escaping),
+            new Handler\StringHandler($patterns, $escaping),
+            new Handler\NumberHandler($patterns),
+            new Handler\CommentHandler(),
+        );
+    }
+
+    /**
+     * Tokenize selector source code.
+     *
+     * @param Reader $reader
+     *
+     * @return TokenStream
+     */
+    public function tokenize(Reader $reader)
+    {
+        $stream = new TokenStream();
+
+        while (!$reader->isEOF()) {
+            foreach ($this->handlers as $handler) {
+                if ($handler->handle($reader, $stream)) {
+                    continue 2;
+                }
+            }
+
+            $stream->push(new Token(Token::TYPE_DELIMITER, $reader->getSubstring(1), $reader->getPosition()));
+            $reader->moveForward(1);
+        }
+
+        return $stream
+            ->push(new Token(Token::TYPE_FILE_END, null, $reader->getPosition()))
+            ->freeze();
+    }
+}