first commit

vendor/symfony/css-selector/Parser/Handler/CommentHandler.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\Handler;
+
+use Symfony\Component\CssSelector\Parser\Reader;
+use Symfony\Component\CssSelector\Parser\TokenStream;
+
+/**
+ * CSS selector comment handler.
+ *
+ * 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 CommentHandler implements HandlerInterface
+{
+    public function handle(Reader $reader, TokenStream $stream): bool
+    {
+        if ('/*' !== $reader->getSubstring(2)) {
+            return false;
+        }
+
+        $offset = $reader->getOffset('*/');
+
+        if (false === $offset) {
+            $reader->moveToEnd();
+        } else {
+            $reader->moveForward($offset + 2);
+        }
+
+        return true;
+    }
+}

vendor/symfony/css-selector/Parser/Handler/HandlerInterface.php

@@ -0,0 +1,30 @@
+<?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\Handler;
+
+use Symfony\Component\CssSelector\Parser\Reader;
+use Symfony\Component\CssSelector\Parser\TokenStream;
+
+/**
+ * CSS selector handler interface.
+ *
+ * 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
+ */
+interface HandlerInterface
+{
+    public function handle(Reader $reader, TokenStream $stream): bool;
+}

vendor/symfony/css-selector/Parser/Handler/HashHandler.php

@@ -0,0 +1,55 @@
+<?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\Handler;
+
+use Symfony\Component\CssSelector\Parser\Reader;
+use Symfony\Component\CssSelector\Parser\Token;
+use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
+use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
+use Symfony\Component\CssSelector\Parser\TokenStream;
+
+/**
+ * CSS selector comment handler.
+ *
+ * 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 HashHandler implements HandlerInterface
+{
+    private TokenizerPatterns $patterns;
+    private TokenizerEscaping $escaping;
+
+    public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping)
+    {
+        $this->patterns = $patterns;
+        $this->escaping = $escaping;
+    }
+
+    public function handle(Reader $reader, TokenStream $stream): bool
+    {
+        $match = $reader->findPattern($this->patterns->getHashPattern());
+
+        if (!$match) {
+            return false;
+        }
+
+        $value = $this->escaping->escapeUnicode($match[1]);
+        $stream->push(new Token(Token::TYPE_HASH, $value, $reader->getPosition()));
+        $reader->moveForward(\strlen($match[0]));
+
+        return true;
+    }
+}

vendor/symfony/css-selector/Parser/Handler/IdentifierHandler.php

@@ -0,0 +1,55 @@
+<?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\Handler;
+
+use Symfony\Component\CssSelector\Parser\Reader;
+use Symfony\Component\CssSelector\Parser\Token;
+use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
+use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
+use Symfony\Component\CssSelector\Parser\TokenStream;
+
+/**
+ * CSS selector comment handler.
+ *
+ * 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 IdentifierHandler implements HandlerInterface
+{
+    private TokenizerPatterns $patterns;
+    private TokenizerEscaping $escaping;
+
+    public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping)
+    {
+        $this->patterns = $patterns;
+        $this->escaping = $escaping;
+    }
+
+    public function handle(Reader $reader, TokenStream $stream): bool
+    {
+        $match = $reader->findPattern($this->patterns->getIdentifierPattern());
+
+        if (!$match) {
+            return false;
+        }
+
+        $value = $this->escaping->escapeUnicode($match[0]);
+        $stream->push(new Token(Token::TYPE_IDENTIFIER, $value, $reader->getPosition()));
+        $reader->moveForward(\strlen($match[0]));
+
+        return true;
+    }
+}

vendor/symfony/css-selector/Parser/Handler/NumberHandler.php

@@ -0,0 +1,51 @@
+<?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\Handler;
+
+use Symfony\Component\CssSelector\Parser\Reader;
+use Symfony\Component\CssSelector\Parser\Token;
+use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
+use Symfony\Component\CssSelector\Parser\TokenStream;
+
+/**
+ * CSS selector comment handler.
+ *
+ * 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 NumberHandler implements HandlerInterface
+{
+    private TokenizerPatterns $patterns;
+
+    public function __construct(TokenizerPatterns $patterns)
+    {
+        $this->patterns = $patterns;
+    }
+
+    public function handle(Reader $reader, TokenStream $stream): bool
+    {
+        $match = $reader->findPattern($this->patterns->getNumberPattern());
+
+        if (!$match) {
+            return false;
+        }
+
+        $stream->push(new Token(Token::TYPE_NUMBER, $match[0], $reader->getPosition()));
+        $reader->moveForward(\strlen($match[0]));
+
+        return true;
+    }
+}

vendor/symfony/css-selector/Parser/Handler/StringHandler.php

@@ -0,0 +1,74 @@
+<?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\Handler;
+
+use Symfony\Component\CssSelector\Exception\InternalErrorException;
+use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
+use Symfony\Component\CssSelector\Parser\Reader;
+use Symfony\Component\CssSelector\Parser\Token;
+use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerEscaping;
+use Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns;
+use Symfony\Component\CssSelector\Parser\TokenStream;
+
+/**
+ * CSS selector comment handler.
+ *
+ * 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 StringHandler implements HandlerInterface
+{
+    private TokenizerPatterns $patterns;
+    private TokenizerEscaping $escaping;
+
+    public function __construct(TokenizerPatterns $patterns, TokenizerEscaping $escaping)
+    {
+        $this->patterns = $patterns;
+        $this->escaping = $escaping;
+    }
+
+    public function handle(Reader $reader, TokenStream $stream): bool
+    {
+        $quote = $reader->getSubstring(1);
+
+        if (!\in_array($quote, ["'", '"'])) {
+            return false;
+        }
+
+        $reader->moveForward(1);
+        $match = $reader->findPattern($this->patterns->getQuotedStringPattern($quote));
+
+        if (!$match) {
+            throw new InternalErrorException(sprintf('Should have found at least an empty match at %d.', $reader->getPosition()));
+        }
+
+        // check unclosed strings
+        if (\strlen($match[0]) === $reader->getRemainingLength()) {
+            throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
+        }
+
+        // check quotes pairs validity
+        if ($quote !== $reader->getSubstring(1, \strlen($match[0]))) {
+            throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
+        }
+
+        $string = $this->escaping->escapeUnicodeAndNewLine($match[0]);
+        $stream->push(new Token(Token::TYPE_STRING, $string, $reader->getPosition()));
+        $reader->moveForward(\strlen($match[0]) + 1);
+
+        return true;
+    }
+}

vendor/symfony/css-selector/Parser/Handler/WhitespaceHandler.php

@@ -0,0 +1,43 @@
+<?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\Handler;
+
+use Symfony\Component\CssSelector\Parser\Reader;
+use Symfony\Component\CssSelector\Parser\Token;
+use Symfony\Component\CssSelector\Parser\TokenStream;
+
+/**
+ * CSS selector whitespace handler.
+ *
+ * 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 WhitespaceHandler implements HandlerInterface
+{
+    public function handle(Reader $reader, TokenStream $stream): bool
+    {
+        $match = $reader->findPattern('~^[ \t\r\n\f]+~');
+
+        if (false === $match) {
+            return false;
+        }
+
+        $stream->push(new Token(Token::TYPE_WHITESPACE, $match[0], $reader->getPosition()));
+        $reader->moveForward(\strlen($match[0]));
+
+        return true;
+    }
+}

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

@@ -0,0 +1,359 @@
+<?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;
+
+use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
+use Symfony\Component\CssSelector\Node;
+use Symfony\Component\CssSelector\Parser\Tokenizer\Tokenizer;
+
+/**
+ * CSS selector parser.
+ *
+ * This component is a port of the Python cssselect library,
+ * which is copyright Ian Bicking, @see https://github.com/scrapy/cssselect.
+ *
+ * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class Parser implements ParserInterface
+{
+    private Tokenizer $tokenizer;
+
+    public function __construct(?Tokenizer $tokenizer = null)
+    {
+        $this->tokenizer = $tokenizer ?? new Tokenizer();
+    }
+
+    public function parse(string $source): array
+    {
+        $reader = new Reader($source);
+        $stream = $this->tokenizer->tokenize($reader);
+
+        return $this->parseSelectorList($stream);
+    }
+
+    /**
+     * Parses the arguments for ":nth-child()" and friends.
+     *
+     * @param Token[] $tokens
+     *
+     * @throws SyntaxErrorException
+     */
+    public static function parseSeries(array $tokens): array
+    {
+        foreach ($tokens as $token) {
+            if ($token->isString()) {
+                throw SyntaxErrorException::stringAsFunctionArgument();
+            }
+        }
+
+        $joined = trim(implode('', array_map(fn (Token $token) => $token->getValue(), $tokens)));
+
+        $int = function ($string) {
+            if (!is_numeric($string)) {
+                throw SyntaxErrorException::stringAsFunctionArgument();
+            }
+
+            return (int) $string;
+        };
+
+        switch (true) {
+            case 'odd' === $joined:
+                return [2, 1];
+            case 'even' === $joined:
+                return [2, 0];
+            case 'n' === $joined:
+                return [1, 0];
+            case !str_contains($joined, 'n'):
+                return [0, $int($joined)];
+        }
+
+        $split = explode('n', $joined);
+        $first = $split[0] ?? null;
+
+        return [
+            $first ? ('-' === $first || '+' === $first ? $int($first.'1') : $int($first)) : 1,
+            isset($split[1]) && $split[1] ? $int($split[1]) : 0,
+        ];
+    }
+
+    private function parseSelectorList(TokenStream $stream): array
+    {
+        $stream->skipWhitespace();
+        $selectors = [];
+
+        while (true) {
+            $selectors[] = $this->parserSelectorNode($stream);
+
+            if ($stream->getPeek()->isDelimiter([','])) {
+                $stream->getNext();
+                $stream->skipWhitespace();
+            } else {
+                break;
+            }
+        }
+
+        return $selectors;
+    }
+
+    private function parserSelectorNode(TokenStream $stream): Node\SelectorNode
+    {
+        [$result, $pseudoElement] = $this->parseSimpleSelector($stream);
+
+        while (true) {
+            $stream->skipWhitespace();
+            $peek = $stream->getPeek();
+
+            if ($peek->isFileEnd() || $peek->isDelimiter([','])) {
+                break;
+            }
+
+            if (null !== $pseudoElement) {
+                throw SyntaxErrorException::pseudoElementFound($pseudoElement, 'not at the end of a selector');
+            }
+
+            if ($peek->isDelimiter(['+', '>', '~'])) {
+                $combinator = $stream->getNext()->getValue();
+                $stream->skipWhitespace();
+            } else {
+                $combinator = ' ';
+            }
+
+            [$nextSelector, $pseudoElement] = $this->parseSimpleSelector($stream);
+            $result = new Node\CombinedSelectorNode($result, $combinator, $nextSelector);
+        }
+
+        return new Node\SelectorNode($result, $pseudoElement);
+    }
+
+    /**
+     * Parses next simple node (hash, class, pseudo, negation).
+     *
+     * @throws SyntaxErrorException
+     */
+    private function parseSimpleSelector(TokenStream $stream, bool $insideNegation = false): array
+    {
+        $stream->skipWhitespace();
+
+        $selectorStart = \count($stream->getUsed());
+        $result = $this->parseElementNode($stream);
+        $pseudoElement = null;
+
+        while (true) {
+            $peek = $stream->getPeek();
+            if ($peek->isWhitespace()
+                || $peek->isFileEnd()
+                || $peek->isDelimiter([',', '+', '>', '~'])
+                || ($insideNegation && $peek->isDelimiter([')']))
+            ) {
+                break;
+            }
+
+            if (null !== $pseudoElement) {
+                throw SyntaxErrorException::pseudoElementFound($pseudoElement, 'not at the end of a selector');
+            }
+
+            if ($peek->isHash()) {
+                $result = new Node\HashNode($result, $stream->getNext()->getValue());
+            } elseif ($peek->isDelimiter(['.'])) {
+                $stream->getNext();
+                $result = new Node\ClassNode($result, $stream->getNextIdentifier());
+            } elseif ($peek->isDelimiter(['['])) {
+                $stream->getNext();
+                $result = $this->parseAttributeNode($result, $stream);
+            } elseif ($peek->isDelimiter([':'])) {
+                $stream->getNext();
+
+                if ($stream->getPeek()->isDelimiter([':'])) {
+                    $stream->getNext();
+                    $pseudoElement = $stream->getNextIdentifier();
+
+                    continue;
+                }
+
+                $identifier = $stream->getNextIdentifier();
+                if (\in_array(strtolower($identifier), ['first-line', 'first-letter', 'before', 'after'])) {
+                    // Special case: CSS 2.1 pseudo-elements can have a single ':'.
+                    // Any new pseudo-element must have two.
+                    $pseudoElement = $identifier;
+
+                    continue;
+                }
+
+                if (!$stream->getPeek()->isDelimiter(['('])) {
+                    $result = new Node\PseudoNode($result, $identifier);
+                    if ('Pseudo[Element[*]:scope]' === $result->__toString()) {
+                        $used = \count($stream->getUsed());
+                        if (!(2 === $used
+                           || 3 === $used && $stream->getUsed()[0]->isWhiteSpace()
+                           || $used >= 3 && $stream->getUsed()[$used - 3]->isDelimiter([','])
+                           || $used >= 4
+                                && $stream->getUsed()[$used - 3]->isWhiteSpace()
+                                && $stream->getUsed()[$used - 4]->isDelimiter([','])
+                        )) {
+                            throw SyntaxErrorException::notAtTheStartOfASelector('scope');
+                        }
+                    }
+                    continue;
+                }
+
+                $stream->getNext();
+                $stream->skipWhitespace();
+
+                if ('not' === strtolower($identifier)) {
+                    if ($insideNegation) {
+                        throw SyntaxErrorException::nestedNot();
+                    }
+
+                    [$argument, $argumentPseudoElement] = $this->parseSimpleSelector($stream, true);
+                    $next = $stream->getNext();
+
+                    if (null !== $argumentPseudoElement) {
+                        throw SyntaxErrorException::pseudoElementFound($argumentPseudoElement, 'inside ::not()');
+                    }
+
+                    if (!$next->isDelimiter([')'])) {
+                        throw SyntaxErrorException::unexpectedToken('")"', $next);
+                    }
+
+                    $result = new Node\NegationNode($result, $argument);
+                } else {
+                    $arguments = [];
+                    $next = null;
+
+                    while (true) {
+                        $stream->skipWhitespace();
+                        $next = $stream->getNext();
+
+                        if ($next->isIdentifier()
+                            || $next->isString()
+                            || $next->isNumber()
+                            || $next->isDelimiter(['+', '-'])
+                        ) {
+                            $arguments[] = $next;
+                        } elseif ($next->isDelimiter([')'])) {
+                            break;
+                        } else {
+                            throw SyntaxErrorException::unexpectedToken('an argument', $next);
+                        }
+                    }
+
+                    if (!$arguments) {
+                        throw SyntaxErrorException::unexpectedToken('at least one argument', $next);
+                    }
+
+                    $result = new Node\FunctionNode($result, $identifier, $arguments);
+                }
+            } else {
+                throw SyntaxErrorException::unexpectedToken('selector', $peek);
+            }
+        }
+
+        if (\count($stream->getUsed()) === $selectorStart) {
+            throw SyntaxErrorException::unexpectedToken('selector', $stream->getPeek());
+        }
+
+        return [$result, $pseudoElement];
+    }
+
+    private function parseElementNode(TokenStream $stream): Node\ElementNode
+    {
+        $peek = $stream->getPeek();
+
+        if ($peek->isIdentifier() || $peek->isDelimiter(['*'])) {
+            if ($peek->isIdentifier()) {
+                $namespace = $stream->getNext()->getValue();
+            } else {
+                $stream->getNext();
+                $namespace = null;
+            }
+
+            if ($stream->getPeek()->isDelimiter(['|'])) {
+                $stream->getNext();
+                $element = $stream->getNextIdentifierOrStar();
+            } else {
+                $element = $namespace;
+                $namespace = null;
+            }
+        } else {
+            $element = $namespace = null;
+        }
+
+        return new Node\ElementNode($namespace, $element);
+    }
+
+    private function parseAttributeNode(Node\NodeInterface $selector, TokenStream $stream): Node\AttributeNode
+    {
+        $stream->skipWhitespace();
+        $attribute = $stream->getNextIdentifierOrStar();
+
+        if (null === $attribute && !$stream->getPeek()->isDelimiter(['|'])) {
+            throw SyntaxErrorException::unexpectedToken('"|"', $stream->getPeek());
+        }
+
+        if ($stream->getPeek()->isDelimiter(['|'])) {
+            $stream->getNext();
+
+            if ($stream->getPeek()->isDelimiter(['='])) {
+                $namespace = null;
+                $stream->getNext();
+                $operator = '|=';
+            } else {
+                $namespace = $attribute;
+                $attribute = $stream->getNextIdentifier();
+                $operator = null;
+            }
+        } else {
+            $namespace = $operator = null;
+        }
+
+        if (null === $operator) {
+            $stream->skipWhitespace();
+            $next = $stream->getNext();
+
+            if ($next->isDelimiter([']'])) {
+                return new Node\AttributeNode($selector, $namespace, $attribute, 'exists', null);
+            } elseif ($next->isDelimiter(['='])) {
+                $operator = '=';
+            } elseif ($next->isDelimiter(['^', '$', '*', '~', '|', '!'])
+                && $stream->getPeek()->isDelimiter(['='])
+            ) {
+                $operator = $next->getValue().'=';
+                $stream->getNext();
+            } else {
+                throw SyntaxErrorException::unexpectedToken('operator', $next);
+            }
+        }
+
+        $stream->skipWhitespace();
+        $value = $stream->getNext();
+
+        if ($value->isNumber()) {
+            // if the value is a number, it's casted into a string
+            $value = new Token(Token::TYPE_STRING, (string) $value->getValue(), $value->getPosition());
+        }
+
+        if (!($value->isIdentifier() || $value->isString())) {
+            throw SyntaxErrorException::unexpectedToken('string or identifier', $value);
+        }
+
+        $stream->skipWhitespace();
+        $next = $stream->getNext();
+
+        if (!$next->isDelimiter([']'])) {
+            throw SyntaxErrorException::unexpectedToken('"]"', $next);
+        }
+
+        return new Node\AttributeNode($selector, $namespace, $attribute, $operator, $value->getValue());
+    }
+}

vendor/symfony/css-selector/Parser/ParserInterface.php

@@ -0,0 +1,34 @@
+<?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;
+
+use Symfony\Component\CssSelector\Node\SelectorNode;
+
+/**
+ * CSS selector parser interface.
+ *
+ * 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
+ */
+interface ParserInterface
+{
+    /**
+     * Parses given selector source into an array of tokens.
+     *
+     * @return SelectorNode[]
+     */
+    public function parse(string $source): array;
+}

vendor/symfony/css-selector/Parser/Reader.php

@@ -0,0 +1,83 @@
+<?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;
+
+/**
+ * CSS selector reader.
+ *
+ * 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 Reader
+{
+    private string $source;
+    private int $length;
+    private int $position = 0;
+
+    public function __construct(string $source)
+    {
+        $this->source = $source;
+        $this->length = \strlen($source);
+    }
+
+    public function isEOF(): bool
+    {
+        return $this->position >= $this->length;
+    }
+
+    public function getPosition(): int
+    {
+        return $this->position;
+    }
+
+    public function getRemainingLength(): int
+    {
+        return $this->length - $this->position;
+    }
+
+    public function getSubstring(int $length, int $offset = 0): string
+    {
+        return substr($this->source, $this->position + $offset, $length);
+    }
+
+    public function getOffset(string $string): int|false
+    {
+        $position = strpos($this->source, $string, $this->position);
+
+        return false === $position ? false : $position - $this->position;
+    }
+
+    public function findPattern(string $pattern): array|false
+    {
+        $source = substr($this->source, $this->position);
+
+        if (preg_match($pattern, $source, $matches)) {
+            return $matches;
+        }
+
+        return false;
+    }
+
+    public function moveForward(int $length): void
+    {
+        $this->position += $length;
+    }
+
+    public function moveToEnd(): void
+    {
+        $this->position = $this->length;
+    }
+}

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

@@ -0,0 +1,48 @@
+<?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

@@ -0,0 +1,44 @@
+<?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

@@ -0,0 +1,43 @@
+<?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

@@ -0,0 +1,48 @@
+<?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 [];
+    }
+}

vendor/symfony/css-selector/Parser/Token.php

@@ -0,0 +1,111 @@
+<?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;
+
+/**
+ * CSS selector token.
+ *
+ * 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 Token
+{
+    public const TYPE_FILE_END = 'eof';
+    public const TYPE_DELIMITER = 'delimiter';
+    public const TYPE_WHITESPACE = 'whitespace';
+    public const TYPE_IDENTIFIER = 'identifier';
+    public const TYPE_HASH = 'hash';
+    public const TYPE_NUMBER = 'number';
+    public const TYPE_STRING = 'string';
+
+    private ?string $type;
+    private ?string $value;
+    private ?int $position;
+
+    public function __construct(?string $type, ?string $value, ?int $position)
+    {
+        $this->type = $type;
+        $this->value = $value;
+        $this->position = $position;
+    }
+
+    public function getType(): ?int
+    {
+        return $this->type;
+    }
+
+    public function getValue(): ?string
+    {
+        return $this->value;
+    }
+
+    public function getPosition(): ?int
+    {
+        return $this->position;
+    }
+
+    public function isFileEnd(): bool
+    {
+        return self::TYPE_FILE_END === $this->type;
+    }
+
+    public function isDelimiter(array $values = []): bool
+    {
+        if (self::TYPE_DELIMITER !== $this->type) {
+            return false;
+        }
+
+        if (!$values) {
+            return true;
+        }
+
+        return \in_array($this->value, $values);
+    }
+
+    public function isWhitespace(): bool
+    {
+        return self::TYPE_WHITESPACE === $this->type;
+    }
+
+    public function isIdentifier(): bool
+    {
+        return self::TYPE_IDENTIFIER === $this->type;
+    }
+
+    public function isHash(): bool
+    {
+        return self::TYPE_HASH === $this->type;
+    }
+
+    public function isNumber(): bool
+    {
+        return self::TYPE_NUMBER === $this->type;
+    }
+
+    public function isString(): bool
+    {
+        return self::TYPE_STRING === $this->type;
+    }
+
+    public function __toString(): string
+    {
+        if ($this->value) {
+            return sprintf('<%s "%s" at %s>', $this->type, $this->value, $this->position);
+        }
+
+        return sprintf('<%s at %s>', $this->type, $this->position);
+    }
+}

vendor/symfony/css-selector/Parser/TokenStream.php

@@ -0,0 +1,156 @@
+<?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;
+
+use Symfony\Component\CssSelector\Exception\InternalErrorException;
+use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
+
+/**
+ * CSS selector token stream.
+ *
+ * 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 TokenStream
+{
+    /**
+     * @var Token[]
+     */
+    private array $tokens = [];
+
+    /**
+     * @var Token[]
+     */
+    private array $used = [];
+
+    private int $cursor = 0;
+    private ?Token $peeked;
+    private bool $peeking = false;
+
+    /**
+     * Pushes a token.
+     *
+     * @return $this
+     */
+    public function push(Token $token): static
+    {
+        $this->tokens[] = $token;
+
+        return $this;
+    }
+
+    /**
+     * Freezes stream.
+     *
+     * @return $this
+     */
+    public function freeze(): static
+    {
+        return $this;
+    }
+
+    /**
+     * Returns next token.
+     *
+     * @throws InternalErrorException If there is no more token
+     */
+    public function getNext(): Token
+    {
+        if ($this->peeking) {
+            $this->peeking = false;
+            $this->used[] = $this->peeked;
+
+            return $this->peeked;
+        }
+
+        if (!isset($this->tokens[$this->cursor])) {
+            throw new InternalErrorException('Unexpected token stream end.');
+        }
+
+        return $this->tokens[$this->cursor++];
+    }
+
+    /**
+     * Returns peeked token.
+     */
+    public function getPeek(): Token
+    {
+        if (!$this->peeking) {
+            $this->peeked = $this->getNext();
+            $this->peeking = true;
+        }
+
+        return $this->peeked;
+    }
+
+    /**
+     * Returns used tokens.
+     *
+     * @return Token[]
+     */
+    public function getUsed(): array
+    {
+        return $this->used;
+    }
+
+    /**
+     * Returns next identifier token.
+     *
+     * @throws SyntaxErrorException If next token is not an identifier
+     */
+    public function getNextIdentifier(): string
+    {
+        $next = $this->getNext();
+
+        if (!$next->isIdentifier()) {
+            throw SyntaxErrorException::unexpectedToken('identifier', $next);
+        }
+
+        return $next->getValue();
+    }
+
+    /**
+     * Returns next identifier or null if star delimiter token is found.
+     *
+     * @throws SyntaxErrorException If next token is not an identifier or a star delimiter
+     */
+    public function getNextIdentifierOrStar(): ?string
+    {
+        $next = $this->getNext();
+
+        if ($next->isIdentifier()) {
+            return $next->getValue();
+        }
+
+        if ($next->isDelimiter(['*'])) {
+            return null;
+        }
+
+        throw SyntaxErrorException::unexpectedToken('identifier or "*"', $next);
+    }
+
+    /**
+     * Skips next whitespace if any.
+     */
+    public function skipWhitespace(): void
+    {
+        $peek = $this->getPeek();
+
+        if ($peek->isWhitespace()) {
+            $this->getNext();
+        }
+    }
+}

vendor/symfony/css-selector/Parser/Tokenizer/Tokenizer.php

@@ -0,0 +1,73 @@
+<?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\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 <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class Tokenizer
+{
+    /**
+     * @var Handler\HandlerInterface[]
+     */
+    private array $handlers;
+
+    public function __construct()
+    {
+        $patterns = new TokenizerPatterns();
+        $escaping = new TokenizerEscaping($patterns);
+
+        $this->handlers = [
+            new Handler\WhitespaceHandler(),
+            new Handler\IdentifierHandler($patterns, $escaping),
+            new Handler\HashHandler($patterns, $escaping),
+            new Handler\StringHandler($patterns, $escaping),
+            new Handler\NumberHandler($patterns),
+            new Handler\CommentHandler(),
+        ];
+    }
+
+    /**
+     * Tokenize selector source code.
+     */
+    public function tokenize(Reader $reader): TokenStream
+    {
+        $stream = new TokenStream();
+
+        while (!$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();
+    }
+}

vendor/symfony/css-selector/Parser/Tokenizer/TokenizerEscaping.php

@@ -0,0 +1,65 @@
+<?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\Tokenizer;
+
+/**
+ * CSS selector tokenizer escaping applier.
+ *
+ * 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 TokenizerEscaping
+{
+    private TokenizerPatterns $patterns;
+
+    public function __construct(TokenizerPatterns $patterns)
+    {
+        $this->patterns = $patterns;
+    }
+
+    public function escapeUnicode(string $value): string
+    {
+        $value = $this->replaceUnicodeSequences($value);
+
+        return preg_replace($this->patterns->getSimpleEscapePattern(), '$1', $value);
+    }
+
+    public function escapeUnicodeAndNewLine(string $value): string
+    {
+        $value = preg_replace($this->patterns->getNewLineEscapePattern(), '', $value);
+
+        return $this->escapeUnicode($value);
+    }
+
+    private function replaceUnicodeSequences(string $value): string
+    {
+        return preg_replace_callback($this->patterns->getUnicodeEscapePattern(), function ($match) {
+            $c = hexdec($match[1]);
+
+            if (0x80 > $c %= 0x200000) {
+                return \chr($c);
+            }
+            if (0x800 > $c) {
+                return \chr(0xC0 | $c >> 6).\chr(0x80 | $c & 0x3F);
+            }
+            if (0x10000 > $c) {
+                return \chr(0xE0 | $c >> 12).\chr(0x80 | $c >> 6 & 0x3F).\chr(0x80 | $c & 0x3F);
+            }
+
+            return '';
+        }, $value);
+    }
+}

vendor/symfony/css-selector/Parser/Tokenizer/TokenizerPatterns.php

@@ -0,0 +1,89 @@
+<?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\Tokenizer;
+
+/**
+ * CSS selector tokenizer patterns builder.
+ *
+ * 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 TokenizerPatterns
+{
+    private string $unicodeEscapePattern;
+    private string $simpleEscapePattern;
+    private string $newLineEscapePattern;
+    private string $escapePattern;
+    private string $stringEscapePattern;
+    private string $nonAsciiPattern;
+    private string $nmCharPattern;
+    private string $nmStartPattern;
+    private string $identifierPattern;
+    private string $hashPattern;
+    private string $numberPattern;
+    private string $quotedStringPattern;
+
+    public function __construct()
+    {
+        $this->unicodeEscapePattern = '\\\\([0-9a-f]{1,6})(?:\r\n|[ \n\r\t\f])?';
+        $this->simpleEscapePattern = '\\\\(.)';
+        $this->newLineEscapePattern = '\\\\(?:\n|\r\n|\r|\f)';
+        $this->escapePattern = $this->unicodeEscapePattern.'|\\\\[^\n\r\f0-9a-f]';
+        $this->stringEscapePattern = $this->newLineEscapePattern.'|'.$this->escapePattern;
+        $this->nonAsciiPattern = '[^\x00-\x7F]';
+        $this->nmCharPattern = '[_a-z0-9-]|'.$this->escapePattern.'|'.$this->nonAsciiPattern;
+        $this->nmStartPattern = '[_a-z]|'.$this->escapePattern.'|'.$this->nonAsciiPattern;
+        $this->identifierPattern = '-?(?:'.$this->nmStartPattern.')(?:'.$this->nmCharPattern.')*';
+        $this->hashPattern = '#((?:'.$this->nmCharPattern.')+)';
+        $this->numberPattern = '[+-]?(?:[0-9]*\.[0-9]+|[0-9]+)';
+        $this->quotedStringPattern = '([^\n\r\f\\\\%s]|'.$this->stringEscapePattern.')*';
+    }
+
+    public function getNewLineEscapePattern(): string
+    {
+        return '~'.$this->newLineEscapePattern.'~';
+    }
+
+    public function getSimpleEscapePattern(): string
+    {
+        return '~'.$this->simpleEscapePattern.'~';
+    }
+
+    public function getUnicodeEscapePattern(): string
+    {
+        return '~'.$this->unicodeEscapePattern.'~i';
+    }
+
+    public function getIdentifierPattern(): string
+    {
+        return '~^'.$this->identifierPattern.'~i';
+    }
+
+    public function getHashPattern(): string
+    {
+        return '~^'.$this->hashPattern.'~i';
+    }
+
+    public function getNumberPattern(): string
+    {
+        return '~^'.$this->numberPattern.'~';
+    }
+
+    public function getQuotedStringPattern(string $quote): string
+    {
+        return '~^'.sprintf($this->quotedStringPattern, $quote).'~i';
+    }
+}