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<?php /** * `VALUES` keyword parser. */ declare(strict_types=1); namespace PhpMyAdmin\SqlParser\Components; use PhpMyAdmin\SqlParser\Component; use PhpMyAdmin\SqlParser\Parser; use PhpMyAdmin\SqlParser\Token; use PhpMyAdmin\SqlParser\TokensList; use PhpMyAdmin\SqlParser\Translator; use function count; use function sprintf; /** * `VALUES` keyword parser. */ class Array2d extends Component { /** * @param Parser $parser the parser that serves as context * @param TokensList $list the list of tokens that are being parsed * @param array $options parameters for parsing * * @return ArrayObj[] */ public static function parse(Parser $parser, TokensList $list, array $options = []) { $ret = []; /** * The number of values in each set. * * @var int */ $count = -1; /** * The state of the parser. * * Below are the states of the parser. * * 0 ----------------------[ array ]----------------------> 1 * * 1 ------------------------[ , ]------------------------> 0 * 1 -----------------------[ else ]----------------------> (END) * * @var int */ $state = 0; for (; $list->idx < $list->count; ++$list->idx) { /** * Token parsed at this moment. * * @var Token */ $token = $list->tokens[$list->idx]; // End of statement. if ($token->type === Token::TYPE_DELIMITER) { break; } // Skipping whitespaces and comments. if (($token->type === Token::TYPE_WHITESPACE) || ($token->type === Token::TYPE_COMMENT)) { continue; } // No keyword is expected. if (($token->type === Token::TYPE_KEYWORD) && ($token->flags & Token::FLAG_KEYWORD_RESERVED)) { break; } if ($state === 0) { if ($token->value === '(') { $arr = ArrayObj::parse($parser, $list, $options); $arrCount = count($arr->values); if ($count === -1) { $count = $arrCount; } elseif ($arrCount !== $count) { $parser->error( sprintf( Translator::gettext('%1$d values were expected, but found %2$d.'), $count, $arrCount ), $token ); } $ret[] = $arr; $state = 1; } else { break; } } elseif ($state === 1) { if ($token->value === ',') { $state = 0; } else { break; } } } if ($state === 0) { $parser->error( 'An opening bracket followed by a set of values was expected.', $list->tokens[$list->idx] ); } --$list->idx; return $ret; } /** * @param ArrayObj[] $component the component to be built * @param array $options parameters for building * * @return string */ public static function build($component, array $options = []) { return ArrayObj::build($component); } }