<?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\Translation\Extractor;

use Symfony\Component\Finder\Finder;
use Symfony\Component\Translation\MessageCatalogue;

/**
 * PhpExtractor extracts translation messages from a PHP template.
 *
 * @author Michel Salib <michelsalib@hotmail.com>
 */
class PhpExtractor extends AbstractFileExtractor implements ExtractorInterface
{
    public const MESSAGE_TOKEN = 300;
    public const METHOD_ARGUMENTS_TOKEN = 1000;
    public const DOMAIN_TOKEN = 1001;

    /**
     * Prefix for new found message.
     */
    private string $prefix = '';

    /**
     * The sequence that captures translation messages.
     */
    protected $sequences = [
        [
            '->',
            'trans',
            '(',
            self::MESSAGE_TOKEN,
            ',',
            self::METHOD_ARGUMENTS_TOKEN,
            ',',
            self::DOMAIN_TOKEN,
        ],
        [
            '->',
            'trans',
            '(',
            self::MESSAGE_TOKEN,
        ],
        [
            'new',
            'TranslatableMessage',
            '(',
            self::MESSAGE_TOKEN,
            ',',
            self::METHOD_ARGUMENTS_TOKEN,
            ',',
            self::DOMAIN_TOKEN,
        ],
        [
            'new',
            'TranslatableMessage',
            '(',
            self::MESSAGE_TOKEN,
        ],
        [
            'new',
            '\\',
            'Symfony',
            '\\',
            'Component',
            '\\',
            'Translation',
            '\\',
            'TranslatableMessage',
            '(',
            self::MESSAGE_TOKEN,
            ',',
            self::METHOD_ARGUMENTS_TOKEN,
            ',',
            self::DOMAIN_TOKEN,
        ],
        [
            'new',
            '\Symfony\Component\Translation\TranslatableMessage',
            '(',
            self::MESSAGE_TOKEN,
            ',',
            self::METHOD_ARGUMENTS_TOKEN,
            ',',
            self::DOMAIN_TOKEN,
        ],
        [
            'new',
            '\\',
            'Symfony',
            '\\',
            'Component',
            '\\',
            'Translation',
            '\\',
            'TranslatableMessage',
            '(',
            self::MESSAGE_TOKEN,
        ],
        [
            'new',
            '\Symfony\Component\Translation\TranslatableMessage',
            '(',
            self::MESSAGE_TOKEN,
        ],
        [
            't',
            '(',
            self::MESSAGE_TOKEN,
            ',',
            self::METHOD_ARGUMENTS_TOKEN,
            ',',
            self::DOMAIN_TOKEN,
        ],
        [
            't',
            '(',
            self::MESSAGE_TOKEN,
        ],
    ];

    /**
     * {@inheritdoc}
     */
    public function extract(string|iterable $resource, MessageCatalogue $catalog)
    {
        $files = $this->extractFiles($resource);
        foreach ($files as $file) {
            $this->parseTokens(token_get_all(file_get_contents($file)), $catalog, $file);

            gc_mem_caches();
        }
    }

    /**
     * {@inheritdoc}
     */
    public function setPrefix(string $prefix)
    {
        $this->prefix = $prefix;
    }

    /**
     * Normalizes a token.
     */
    protected function normalizeToken(mixed $token): ?string
    {
        if (isset($token[1]) && 'b"' !== $token) {
            return $token[1];
        }

        return $token;
    }

    /**
     * Seeks to a non-whitespace token.
     */
    private function seekToNextRelevantToken(\Iterator $tokenIterator)
    {
        for (; $tokenIterator->valid(); $tokenIterator->next()) {
            $t = $tokenIterator->current();
            if (\T_WHITESPACE !== $t[0]) {
                break;
            }
        }
    }

    private function skipMethodArgument(\Iterator $tokenIterator)
    {
        $openBraces = 0;

        for (; $tokenIterator->valid(); $tokenIterator->next()) {
            $t = $tokenIterator->current();

            if ('[' === $t[0] || '(' === $t[0]) {
                ++$openBraces;
            }

            if (']' === $t[0] || ')' === $t[0]) {
                --$openBraces;
            }

            if ((0 === $openBraces && ',' === $t[0]) || (-1 === $openBraces && ')' === $t[0])) {
                break;
            }
        }
    }

    /**
     * Extracts the message from the iterator while the tokens
     * match allowed message tokens.
     */
    private function getValue(\Iterator $tokenIterator)
    {
        $message = '';
        $docToken = '';
        $docPart = '';

        for (; $tokenIterator->valid(); $tokenIterator->next()) {
            $t = $tokenIterator->current();
            if ('.' === $t) {
                // Concatenate with next token
                continue;
            }
            if (!isset($t[1])) {
                break;
            }

            switch ($t[0]) {
                case \T_START_HEREDOC:
                    $docToken = $t[1];
                    break;
                case \T_ENCAPSED_AND_WHITESPACE:
                case \T_CONSTANT_ENCAPSED_STRING:
                    if ('' === $docToken) {
                        $message .= PhpStringTokenParser::parse($t[1]);
                    } else {
                        $docPart = $t[1];
                    }
                    break;
                case \T_END_HEREDOC:
                    if ($indentation = strspn($t[1], ' ')) {
                        $docPartWithLineBreaks = $docPart;
                        $docPart = '';

                        foreach (preg_split('~(\r\n|\n|\r)~', $docPartWithLineBreaks, -1, \PREG_SPLIT_DELIM_CAPTURE) as $str) {
                            if (\in_array($str, ["\r\n", "\n", "\r"], true)) {
                                $docPart .= $str;
                            } else {
                                $docPart .= substr($str, $indentation);
                            }
                        }
                    }

                    $message .= PhpStringTokenParser::parseDocString($docToken, $docPart);
                    $docToken = '';
                    $docPart = '';
                    break;
                case \T_WHITESPACE:
                    break;
                default:
                    break 2;
            }
        }

        return $message;
    }

    /**
     * Extracts trans message from PHP tokens.
     */
    protected function parseTokens(array $tokens, MessageCatalogue $catalog, string $filename)
    {
        $tokenIterator = new \ArrayIterator($tokens);

        for ($key = 0; $key < $tokenIterator->count(); ++$key) {
            foreach ($this->sequences as $sequence) {
                $message = '';
                $domain = 'messages';
                $tokenIterator->seek($key);

                foreach ($sequence as $sequenceKey => $item) {
                    $this->seekToNextRelevantToken($tokenIterator);

                    if ($this->normalizeToken($tokenIterator->current()) === $item) {
                        $tokenIterator->next();
                        continue;
                    } elseif (self::MESSAGE_TOKEN === $item) {
                        $message = $this->getValue($tokenIterator);

                        if (\count($sequence) === ($sequenceKey + 1)) {
                            break;
                        }
                    } elseif (self::METHOD_ARGUMENTS_TOKEN === $item) {
                        $this->skipMethodArgument($tokenIterator);
                    } elseif (self::DOMAIN_TOKEN === $item) {
                        $domainToken = $this->getValue($tokenIterator);
                        if ('' !== $domainToken) {
                            $domain = $domainToken;
                        }

                        break;
                    } else {
                        break;
                    }
                }

                if ($message) {
                    $catalog->set($message, $this->prefix.$message, $domain);
                    $metadata = $catalog->getMetadata($message, $domain) ?? [];
                    $normalizedFilename = preg_replace('{[\\\\/]+}', '/', $filename);
                    $metadata['sources'][] = $normalizedFilename.':'.$tokens[$key][2];
                    $catalog->setMetadata($message, $metadata, $domain);
                    break;
                }
            }
        }
    }

    /**
     * @throws \InvalidArgumentException
     */
    protected function canBeExtracted(string $file): bool
    {
        return $this->isFile($file) && 'php' === pathinfo($file, \PATHINFO_EXTENSION);
    }

    /**
     * {@inheritdoc}
     */
    protected function extractFromDirectory(string|array $directory): iterable
    {
        if (!class_exists(Finder::class)) {
            throw new \LogicException(sprintf('You cannot use "%s" as the "symfony/finder" package is not installed. Try running "composer require symfony/finder".', static::class));
        }

        $finder = new Finder();

        return $finder->files()->name('*.php')->in($directory);
    }
}

• [F] AbstractFileExtractor.php
  Delete
• [F] ChainExtractor.php
  Delete
• [F] ExtractorInterface.php
  Delete
• [F] PhpExtractor.php
  Delete
• [F] PhpStringTokenParser.php
  Delete

About Section

About NFC Pay: Our Story and Mission

NFC Pay was founded with a vision to transform the way people handle transactions. Our journey is defined by a commitment to innovation, security, and convenience. We strive to deliver seamless, user-friendly payment solutions that make everyday transactions effortless and secure. Our mission is to empower you to pay with ease and confidence, anytime, anywhere.

• Simplifying Payments, One Tap at a Time.
• Reinventing Your Wallet for Modern Convenience.
• Smart Payments for a Effortless Lifestyle.
• Experience the Ease of Tap and Pay.
• Innovative Solutions for Your Daily Transactions.

FAQ Section

Frequently Asked Questions About NFC Pay

Here are answers to some common questions about NFC Pay. We aim to provide clear and concise information to help you understand how our platform works and how it can benefit you. If you have any further inquiries, please don’t hesitate to contact our support team.

How do I register for NFC Pay?

Download the app and sign up using your email or phone number, then complete the verification process.

Is my payment information secure?

Yes, we use advanced encryption and security protocols to protect your payment details.

Can I add multiple cards to my NFC Pay wallet?

Absolutely, you can link multiple debit or credit cards to your wallet.

How do I transfer money to another user?

Go to the transfer section, select the recipient, enter the amount, and authorize the transfer.

What should I do if I forget my PIN?

Use the “Forgot PIN” feature in the app to reset it following the provided instructions.

How can I activate my merchant account?

Sign up for a merchant account through the app and follow the setup instructions to start accepting payments.

Can I track my payment status?

Yes, you can view and track your payment status in the account dashboard