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<?php |
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declare(strict_types=1); |
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namespace PhpMyAdmin\SqlParser\Parsers; |
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use PhpMyAdmin\SqlParser\Components\DataType; |
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use PhpMyAdmin\SqlParser\Parseable; |
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use PhpMyAdmin\SqlParser\Parser; |
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use PhpMyAdmin\SqlParser\Token; |
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use PhpMyAdmin\SqlParser\TokensList; |
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use PhpMyAdmin\SqlParser\TokenType; |
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use function strtoupper; |
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/** |
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* Parses a data type. |
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*/ |
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final class DataTypes implements Parseable |
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{ |
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/** |
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* All data type options. |
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*/ |
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private const DATA_TYPE_OPTIONS = [ |
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'BINARY' => 1, |
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'CHARACTER SET' => [ |
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2, |
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'var', |
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], |
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'CHARSET' => [ |
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2, |
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'var', |
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], |
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'COLLATE' => [ |
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3, |
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'var', |
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], |
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'UNSIGNED' => 4, |
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'ZEROFILL' => 5, |
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]; |
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/** |
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* @param Parser $parser the parser that serves as context |
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* @param TokensList $list the list of tokens that are being parsed |
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* @param array<string, mixed> $options parameters for parsing |
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*/ |
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public static function parse(Parser $parser, TokensList $list, array $options = []): DataType|null |
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{ |
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$ret = new DataType(); |
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/** |
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* The state of the parser. |
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* |
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* Below are the states of the parser. |
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* |
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* 0 -------------------[ data type ]--------------------> 1 |
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* |
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* 1 ----------------[ size and options ]----------------> 2 |
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*/ |
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$state = 0; |
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for (; $list->idx < $list->count; ++$list->idx) { |
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/** |
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* Token parsed at this moment. |
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*/ |
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$token = $list->tokens[$list->idx]; |
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// Skipping whitespaces and comments. |
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if (($token->type === TokenType::Whitespace) || ($token->type === TokenType::Comment)) { |
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continue; |
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} |
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if ($state === 0) { |
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$ret->name = strtoupper((string) $token->value); |
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if (($token->type !== TokenType::Keyword) || (! ($token->flags & Token::FLAG_KEYWORD_DATA_TYPE))) { |
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$parser->error('Unrecognized data type.', $token); |
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} |
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$state = 1; |
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168 |
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} elseif ($state === 1) { |
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168 |
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if (($token->type === TokenType::Operator) && ($token->value === '(')) { |
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$parameters = ArrayObjs::parse($parser, $list); |
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++$list->idx; |
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$ret->parameters = ($ret->name === 'ENUM') || ($ret->name === 'SET') ? |
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$parameters->raw : $parameters->values; |
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} |
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$ret->options = OptionsArrays::parse($parser, $list, self::DATA_TYPE_OPTIONS); |
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++$list->idx; |
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break; |
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} |
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} |
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if (empty($ret->name)) { |
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return null; |
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} |
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--$list->idx; |
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return $ret; |
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} |
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} |
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phpmyadmin /
sql-parser
