<?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\XPath;

use Symfony\Component\CssSelector\Exception\ExpressionErrorException;
use Symfony\Component\CssSelector\Node\FunctionNode;
use Symfony\Component\CssSelector\Node\NodeInterface;
use Symfony\Component\CssSelector\Node\SelectorNode;
use Symfony\Component\CssSelector\Parser\Parser;
use Symfony\Component\CssSelector\Parser\ParserInterface;

/**
 * XPath expression translator 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
 */
class Translator implements TranslatorInterface
{
    private $mainParser;

    /**
     * @var ParserInterface[]
     */
    private array $shortcutParsers = [];

    /**
     * @var Extension\ExtensionInterface[]
     */
    private array $extensions = [];

    private array $nodeTranslators = [];
    private array $combinationTranslators = [];
    private array $functionTranslators = [];
    private array $pseudoClassTranslators = [];
    private array $attributeMatchingTranslators = [];

    public function __construct(ParserInterface $parser = null)
    {
        $this->mainParser = $parser ?? new Parser();

        $this
            ->registerExtension(new Extension\NodeExtension())
            ->registerExtension(new Extension\CombinationExtension())
            ->registerExtension(new Extension\FunctionExtension())
            ->registerExtension(new Extension\PseudoClassExtension())
            ->registerExtension(new Extension\AttributeMatchingExtension())
        ;
    }

    public static function getXpathLiteral(string $element): string
    {
        if (!str_contains($element, "'")) {
            return "'".$element."'";
        }

        if (!str_contains($element, '"')) {
            return '"'.$element.'"';
        }

        $string = $element;
        $parts = [];
        while (true) {
            if (false !== $pos = strpos($string, "'")) {
                $parts[] = sprintf("'%s'", substr($string, 0, $pos));
                $parts[] = "\"'\"";
                $string = substr($string, $pos + 1);
            } else {
                $parts[] = "'$string'";
                break;
            }
        }

        return sprintf('concat(%s)', implode(', ', $parts));
    }

    /**
     * {@inheritdoc}
     */
    public function cssToXPath(string $cssExpr, string $prefix = 'descendant-or-self::'): string
    {
        $selectors = $this->parseSelectors($cssExpr);

        /** @var SelectorNode $selector */
        foreach ($selectors as $index => $selector) {
            if (null !== $selector->getPseudoElement()) {
                throw new ExpressionErrorException('Pseudo-elements are not supported.');
            }

            $selectors[$index] = $this->selectorToXPath($selector, $prefix);
        }

        return implode(' | ', $selectors);
    }

    /**
     * {@inheritdoc}
     */
    public function selectorToXPath(SelectorNode $selector, string $prefix = 'descendant-or-self::'): string
    {
        return ($prefix ?: '').$this->nodeToXPath($selector);
    }

    /**
     * @return $this
     */
    public function registerExtension(Extension\ExtensionInterface $extension): static
    {
        $this->extensions[$extension->getName()] = $extension;

        $this->nodeTranslators = array_merge($this->nodeTranslators, $extension->getNodeTranslators());
        $this->combinationTranslators = array_merge($this->combinationTranslators, $extension->getCombinationTranslators());
        $this->functionTranslators = array_merge($this->functionTranslators, $extension->getFunctionTranslators());
        $this->pseudoClassTranslators = array_merge($this->pseudoClassTranslators, $extension->getPseudoClassTranslators());
        $this->attributeMatchingTranslators = array_merge($this->attributeMatchingTranslators, $extension->getAttributeMatchingTranslators());

        return $this;
    }

    /**
     * @throws ExpressionErrorException
     */
    public function getExtension(string $name): Extension\ExtensionInterface
    {
        if (!isset($this->extensions[$name])) {
            throw new ExpressionErrorException(sprintf('Extension "%s" not registered.', $name));
        }

        return $this->extensions[$name];
    }

    /**
     * @return $this
     */
    public function registerParserShortcut(ParserInterface $shortcut): static
    {
        $this->shortcutParsers[] = $shortcut;

        return $this;
    }

    /**
     * @throws ExpressionErrorException
     */
    public function nodeToXPath(NodeInterface $node): XPathExpr
    {
        if (!isset($this->nodeTranslators[$node->getNodeName()])) {
            throw new ExpressionErrorException(sprintf('Node "%s" not supported.', $node->getNodeName()));
        }

        return $this->nodeTranslators[$node->getNodeName()]($node, $this);
    }

    /**
     * @throws ExpressionErrorException
     */
    public function addCombination(string $combiner, NodeInterface $xpath, NodeInterface $combinedXpath): XPathExpr
    {
        if (!isset($this->combinationTranslators[$combiner])) {
            throw new ExpressionErrorException(sprintf('Combiner "%s" not supported.', $combiner));
        }

        return $this->combinationTranslators[$combiner]($this->nodeToXPath($xpath), $this->nodeToXPath($combinedXpath));
    }

    /**
     * @throws ExpressionErrorException
     */
    public function addFunction(XPathExpr $xpath, FunctionNode $function): XPathExpr
    {
        if (!isset($this->functionTranslators[$function->getName()])) {
            throw new ExpressionErrorException(sprintf('Function "%s" not supported.', $function->getName()));
        }

        return $this->functionTranslators[$function->getName()]($xpath, $function);
    }

    /**
     * @throws ExpressionErrorException
     */
    public function addPseudoClass(XPathExpr $xpath, string $pseudoClass): XPathExpr
    {
        if (!isset($this->pseudoClassTranslators[$pseudoClass])) {
            throw new ExpressionErrorException(sprintf('Pseudo-class "%s" not supported.', $pseudoClass));
        }

        return $this->pseudoClassTranslators[$pseudoClass]($xpath);
    }

    /**
     * @throws ExpressionErrorException
     */
    public function addAttributeMatching(XPathExpr $xpath, string $operator, string $attribute, ?string $value): XPathExpr
    {
        if (!isset($this->attributeMatchingTranslators[$operator])) {
            throw new ExpressionErrorException(sprintf('Attribute matcher operator "%s" not supported.', $operator));
        }

        return $this->attributeMatchingTranslators[$operator]($xpath, $attribute, $value);
    }

    /**
     * @return SelectorNode[]
     */
    private function parseSelectors(string $css): array
    {
        foreach ($this->shortcutParsers as $shortcut) {
            $tokens = $shortcut->parse($css);

            if (!empty($tokens)) {
                return $tokens;
            }
        }

        return $this->mainParser->parse($css);
    }
}

• [D] Extension
• [F] Translator.php
  Delete
• [F] TranslatorInterface.php
  Delete
• [F] XPathExpr.php
  Delete

How To Payment

Simple Steps to Complete Your Payment Securely and Efficiently

Making a payment on our website is quick and secure. Start by logging in or creating an account. Select your preferred payment method, input the required details, and review the information. Once you confirm everything is correct, click on the "Submit Payment" button. You’ll receive instant confirmation and can track your payment status through your account dashboard. It’s an easy and secure process.

• Go to the Payment Section: Access the payment area on our website or app.
• Choose Your Payment Method: Select your preferred payment option.
• Enter Payment Details: Provide the necessary payment information.
• Verify Your Information: Check that all details are correct.
• Confirm Your Payment: Click "Submit Payment" to complete the transaction.