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Edit File : PhpExtractor.php \| Size : 7.67 KB
<?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 { const MESSAGE_TOKEN = 300; const METHOD_ARGUMENTS_TOKEN = 1000; const DOMAIN_TOKEN = 1001; /* * Prefix for new found message. * * @var string / private $prefix = ''; /* * The sequence that captures translation messages. * * @var array / protected $sequences = [ [ '->', 'trans', '(', self::MESSAGE_TOKEN, ',', self::METHOD_ARGUMENTS_TOKEN, ',', self::DOMAIN_TOKEN, ], [ '->', 'transChoice', '(', self::MESSAGE_TOKEN, ',', self::METHOD_ARGUMENTS_TOKEN, ',', self::METHOD_ARGUMENTS_TOKEN, ',', self::DOMAIN_TOKEN, ], [ '->', 'trans', '(', self::MESSAGE_TOKEN, ], [ '->', 'transChoice', '(', self::MESSAGE_TOKEN, ], ]; /* * {@inheritdoc} / public function extract($resource, MessageCatalogue $catalog) { $files = $this->extractFiles($resource); foreach ($files as $file) { $this->parseTokens(token_get_all(file_get_contents($file)), $catalog, $file); gc_mem_caches(); } } /* * {@inheritdoc} / public function setPrefix($prefix) { $this->prefix = $prefix; } /* * Normalizes a token. * * @param mixed $token * * @return string\|null / protected function normalizeToken($token) { 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: $message .= PhpStringTokenParser::parseDocString($docToken, $docPart); $docToken = ''; $docPart = ''; break; case T_WHITESPACE: break; default: break 2; } } return $message; } /* * Extracts trans message from PHP tokens. * * @param array $tokens * @param string $filename / protected function parseTokens($tokens, MessageCatalogue $catalog/, string $filename/) { if (\func_num_args() < 3 && __CLASS__ !== static::class && __CLASS__ !== (new \ReflectionMethod($this, __FUNCTION__))->getDeclaringClass()->getName() && !$this instanceof \PHPUnit\Framework\MockObject\MockObject && !$this instanceof \Prophecy\Prophecy\ProphecySubjectInterface) { @trigger_error(sprintf('The "%s()" method will have a new "string $filename" argument in version 5.0, not defining it is deprecated since Symfony 4.3.', __METHOD__), E_USER_DEPRECATED); } $filename = 2 < \func_num_args() ? func_get_arg(2) : ''; $tokenIterator = new \ArrayIterator($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; } } } } /* * @param string $file * * @return bool * * @throws \InvalidArgumentException / protected function canBeExtracted($file) { return $this->isFile($file) && 'php' === pathinfo($file, PATHINFO_EXTENSION); } /* * {@inheritdoc} / protected function extractFromDirectory($directory) { $finder = new Finder(); return $finder->files()->name('.php')->in($directory); } } Back

Edit File : PhpExtractor.php | Size : 7.67 KB

<?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
{
    const MESSAGE_TOKEN = 300;
    const METHOD_ARGUMENTS_TOKEN = 1000;
    const DOMAIN_TOKEN = 1001;

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

/**
     * The sequence that captures translation messages.
     *
     * @var array
     */
    protected $sequences = [
        [
            '->',
            'trans',
            '(',
            self::MESSAGE_TOKEN,
            ',',
            self::METHOD_ARGUMENTS_TOKEN,
            ',',
            self::DOMAIN_TOKEN,
        ],
        [
            '->',
            'transChoice',
            '(',
            self::MESSAGE_TOKEN,
            ',',
            self::METHOD_ARGUMENTS_TOKEN,
            ',',
            self::METHOD_ARGUMENTS_TOKEN,
            ',',
            self::DOMAIN_TOKEN,
        ],
        [
            '->',
            'trans',
            '(',
            self::MESSAGE_TOKEN,
        ],
        [
            '->',
            'transChoice',
            '(',
            self::MESSAGE_TOKEN,
        ],
    ];

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

/**
     * Normalizes a token.
     *
     * @param mixed $token
     *
     * @return string|null
     */
    protected function normalizeToken($token)
    {
        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:
                    $message .= PhpStringTokenParser::parseDocString($docToken, $docPart);
                    $docToken = '';
                    $docPart = '';
                    break;
                case T_WHITESPACE:
                    break;
                default:
                    break 2;
            }
        }

return $message;
    }

/**
     * Extracts trans message from PHP tokens.
     *
     * @param array  $tokens
     * @param string $filename
     */
    protected function parseTokens($tokens, MessageCatalogue $catalog/*, string $filename*/)
    {
        if (\func_num_args() < 3 && __CLASS__ !== static::class && __CLASS__ !== (new \ReflectionMethod($this, __FUNCTION__))->getDeclaringClass()->getName() && !$this instanceof \PHPUnit\Framework\MockObject\MockObject && !$this instanceof \Prophecy\Prophecy\ProphecySubjectInterface) {
            @trigger_error(sprintf('The "%s()" method will have a new "string $filename" argument in version 5.0, not defining it is deprecated since Symfony 4.3.', __METHOD__), E_USER_DEPRECATED);
        }
        $filename = 2 < \func_num_args() ? func_get_arg(2) : '';

$tokenIterator = new \ArrayIterator($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;
                }
            }
        }
    }

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

/**
     * {@inheritdoc}
     */
    protected function extractFromDirectory($directory)
    {
        $finder = new Finder();

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

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