Current Path : /data/web/virtuals/51568/virtual/www/subdom/pomucky/vendor/vlucas/phpdotenv/src/Parser/ |
Current File : /data/web/virtuals/51568/virtual/www/subdom/pomucky/vendor/vlucas/phpdotenv/src/Parser/Lexer.php |
<?php declare(strict_types=1); namespace Dotenv\Parser; final class Lexer { /** * The regex for each type of token. */ private const PATTERNS = [ '[\r\n]{1,1000}', '[^\S\r\n]{1,1000}', '\\\\', '\'', '"', '\\#', '\\$', '([^(\s\\\\\'"\\#\\$)]|\\(|\\)){1,1000}', ]; /** * This class is a singleton. * * @codeCoverageIgnore * * @return void */ private function __construct() { // } /** * Convert content into a token stream. * * Multibyte string processing is not needed here, and nether is error * handling, for performance reasons. * * @param string $content * * @return \Generator<string> */ public static function lex(string $content) { static $regex; if ($regex === null) { $regex = '(('.\implode(')|(', self::PATTERNS).'))A'; } $offset = 0; while (isset($content[$offset])) { if (!\preg_match($regex, $content, $matches, 0, $offset)) { throw new \Error(\sprintf('Lexer encountered unexpected character [%s].', $content[$offset])); } $offset += \strlen($matches[0]); yield $matches[0]; } } }