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vendor/symfony/css-selector/Parser/Shortcut/ClassParser.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\Parser\Shortcut;
+
+use Symfony\Component\CssSelector\Node\ClassNode;
+use Symfony\Component\CssSelector\Node\ElementNode;
+use Symfony\Component\CssSelector\Node\SelectorNode;
+use Symfony\Component\CssSelector\Parser\ParserInterface;
+
+/**
+ * CSS selector class parser shortcut.
+ *
+ * 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 <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class ClassParser implements ParserInterface
+{
+    public function parse(string $source): array
+    {
+        // Matches an optional namespace, optional element, and required class
+        // $source = 'test|input.ab6bd_field';
+        // $matches = array (size=4)
+        //     0 => string 'test|input.ab6bd_field' (length=22)
+        //     1 => string 'test' (length=4)
+        //     2 => string 'input' (length=5)
+        //     3 => string 'ab6bd_field' (length=11)
+        if (preg_match('/^(?:([a-z]++)\|)?+([\w-]++|\*)?+\.([\w-]++)$/i', trim($source), $matches)) {
+            return [
+                new SelectorNode(new ClassNode(new ElementNode($matches[1] ?: null, $matches[2] ?: null), $matches[3])),
+            ];
+        }
+
+        return [];
+    }
+}

vendor/symfony/css-selector/Parser/Shortcut/ElementParser.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\Parser\Shortcut;
+
+use Symfony\Component\CssSelector\Node\ElementNode;
+use Symfony\Component\CssSelector\Node\SelectorNode;
+use Symfony\Component\CssSelector\Parser\ParserInterface;
+
+/**
+ * CSS selector element parser shortcut.
+ *
+ * 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 <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class ElementParser implements ParserInterface
+{
+    public function parse(string $source): array
+    {
+        // Matches an optional namespace, required element or `*`
+        // $source = 'testns|testel';
+        // $matches = array (size=3)
+        //     0 => string 'testns|testel' (length=13)
+        //     1 => string 'testns' (length=6)
+        //     2 => string 'testel' (length=6)
+        if (preg_match('/^(?:([a-z]++)\|)?([\w-]++|\*)$/i', trim($source), $matches)) {
+            return [new SelectorNode(new ElementNode($matches[1] ?: null, $matches[2]))];
+        }
+
+        return [];
+    }
+}

vendor/symfony/css-selector/Parser/Shortcut/EmptyStringParser.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\Parser\Shortcut;
+
+use Symfony\Component\CssSelector\Node\ElementNode;
+use Symfony\Component\CssSelector\Node\SelectorNode;
+use Symfony\Component\CssSelector\Parser\ParserInterface;
+
+/**
+ * CSS selector class parser shortcut.
+ *
+ * This shortcut ensure compatibility with previous version.
+ * - The parser fails to parse an empty string.
+ * - In the previous version, an empty string matches each tags.
+ *
+ * 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 <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class EmptyStringParser implements ParserInterface
+{
+    public function parse(string $source): array
+    {
+        // Matches an empty string
+        if ('' == $source) {
+            return [new SelectorNode(new ElementNode(null, '*'))];
+        }
+
+        return [];
+    }
+}

vendor/symfony/css-selector/Parser/Shortcut/HashParser.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\Parser\Shortcut;
+
+use Symfony\Component\CssSelector\Node\ElementNode;
+use Symfony\Component\CssSelector\Node\HashNode;
+use Symfony\Component\CssSelector\Node\SelectorNode;
+use Symfony\Component\CssSelector\Parser\ParserInterface;
+
+/**
+ * CSS selector hash parser shortcut.
+ *
+ * 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 <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class HashParser implements ParserInterface
+{
+    public function parse(string $source): array
+    {
+        // Matches an optional namespace, optional element, and required id
+        // $source = 'test|input#ab6bd_field';
+        // $matches = array (size=4)
+        //     0 => string 'test|input#ab6bd_field' (length=22)
+        //     1 => string 'test' (length=4)
+        //     2 => string 'input' (length=5)
+        //     3 => string 'ab6bd_field' (length=11)
+        if (preg_match('/^(?:([a-z]++)\|)?+([\w-]++|\*)?+#([\w-]++)$/i', trim($source), $matches)) {
+            return [
+                new SelectorNode(new HashNode(new ElementNode($matches[1] ?: null, $matches[2] ?: null), $matches[3])),
+            ];
+        }
+
+        return [];
+    }
+}