FM / Parser

/var/www/vhosts/nabawater/vendor/symfony/css-selector/Parser/

/var/www/vhosts/nabawater/vendor/symfony/css-selector/Parser

Name	Size	Mode	Actions
Handler/	-	0775	rm
Shortcut/	-	0775	rm
Tokenizer/	-	0775	rm
Parser.php	12135	0664	edit dl rm
ParserInterface.php	831	0664	edit dl rm
Reader.php	2223	0664	edit dl rm
Token.php	2867	0664	edit dl rm
TokenStream.php	3505	0664	edit dl rm

Edit: /var/www/vhosts/nabawater/vendor/symfony/css-selector/Parser/Parser.php (12135B)

<?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/SimonSapin/cssselect.
 *
 * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
 *
 * @internal
 */
class Parser implements ParserInterface
{
    private $tokenizer;

public function __construct(Tokenizer $tokenizer = null)
    {
        $this->tokenizer = $tokenizer ?: new Tokenizer();
    }

/**
     * {@inheritdoc}
     */
    public function parse($source)
    {
        $reader = new Reader($source);
        $stream = $this->tokenizer->tokenize($reader);

return $this->parseSelectorList($stream);
    }

/**
     * Parses the arguments for ":nth-child()" and friends.
     *
     * @param Token[] $tokens
     *
     * @return array
     *
     * @throws SyntaxErrorException
     */
    public static function parseSeries(array $tokens)
    {
        foreach ($tokens as $token) {
            if ($token->isString()) {
                throw SyntaxErrorException::stringAsFunctionArgument();
            }
        }

$joined = trim(implode('', array_map(function (Token $token) {
            return $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' === $joined:
                return [1, 0];
            case false === strpos($joined, 'n'):
                return [0, $int($joined)];
        }

$split = explode('n', $joined);
        $first = isset($split[0]) ? $split[0] : null;

return [
            $first ? ('-' === $first || '+' === $first ? $int($first.'1') : $int($first)) : 1,
            isset($split[1]) && $split[1] ? $int($split[1]) : 0,
        ];
    }

/**
     * Parses selector nodes.
     *
     * @return array
     */
    private function parseSelectorList(TokenStream $stream)
    {
        $stream->skipWhitespace();
        $selectors = [];

while (true) {
            $selectors[] = $this->parserSelectorNode($stream);

if ($stream->getPeek()->isDelimiter([','])) {
                $stream->getNext();
                $stream->skipWhitespace();
            } else {
                break;
            }
        }

return $selectors;
    }

/**
     * Parses next selector or combined node.
     *
     * @return Node\SelectorNode
     *
     * @throws SyntaxErrorException
     */
    private function parserSelectorNode(TokenStream $stream)
    {
        list($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 = ' ';
            }

list($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).
     *
     * @param TokenStream $stream
     * @param bool        $insideNegation
     *
     * @return array
     *
     * @throws SyntaxErrorException
     */
    private function parseSimpleSelector(TokenStream $stream, $insideNegation = false)
    {
        $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);

continue;
                }

$stream->getNext();
                $stream->skipWhitespace();

if ('not' === strtolower($identifier)) {
                    if ($insideNegation) {
                        throw SyntaxErrorException::nestedNot();
                    }

list($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 (empty($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];
    }

/**
     * Parses next element node.
     *
     * @return Node\ElementNode
     */
    private function parseElementNode(TokenStream $stream)
    {
        $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);
    }

/**
     * Parses next attribute node.
     *
     * @return Node\AttributeNode
     *
     * @throws SyntaxErrorException
     */
    private function parseAttributeNode(Node\NodeInterface $selector, TokenStream $stream)
    {
        $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());
    }
}

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