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<?php |
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declare(strict_types=1); |
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namespace PhpMyAdmin\SqlParser\Components; |
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use PhpMyAdmin\SqlParser\Component; |
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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 function implode; |
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use function is_array; |
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use function strlen; |
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use function trim; |
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/** |
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* Parses an array. |
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*/ |
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final class ArrayObj implements Component |
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{ |
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/** |
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* The array that contains the unprocessed value of each token. |
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* |
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* @var string[] |
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*/ |
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public $raw = []; |
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/** |
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* The array that contains the processed value of each token. |
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* |
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* @var string[] |
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*/ |
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public $values = []; |
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/** |
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* @param string[] $raw the unprocessed values |
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* @param string[] $values the processed values |
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*/ |
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public function __construct(array $raw = [], array $values = []) |
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{ |
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$this->raw = $raw; |
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$this->values = $values; |
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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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* @return ArrayObj|Component[] |
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*/ |
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public static function parse(Parser $parser, TokensList $list, array $options = []) |
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{ |
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$ret = empty($options['type']) ? new static() : []; |
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/** |
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* The last raw expression. |
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* |
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* @var string |
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*/ |
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$lastRaw = ''; |
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/** |
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* The last value. |
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* |
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* @var string |
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*/ |
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$lastValue = ''; |
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/** |
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* Counts brackets. |
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* |
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* @var int |
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*/ |
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$brackets = 0; |
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/** |
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* Last separator (bracket or comma). |
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* |
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* @var bool |
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*/ |
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$isCommaLast = false; |
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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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// End of statement. |
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if ($token->type === Token::TYPE_DELIMITER) { |
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break; |
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} |
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// Skipping whitespaces and comments. |
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if (($token->type === Token::TYPE_WHITESPACE) || ($token->type === Token::TYPE_COMMENT)) { |
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$lastRaw .= $token->token; |
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$lastValue = trim($lastValue) . ' '; |
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continue; |
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} |
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if (($brackets === 0) && (($token->type !== Token::TYPE_OPERATOR) || ($token->value !== '('))) { |
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$parser->error('An opening bracket was expected.', $token); |
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break; |
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} |
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if ($token->type === Token::TYPE_OPERATOR) { |
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if ($token->value === '(') { |
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if (++$brackets === 1) { // 1 is the base level. |
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continue; |
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} |
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} elseif ($token->value === ')') { |
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if (--$brackets === 0) { // Array ended. |
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break; |
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} |
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} elseif ($token->value === ',') { |
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if ($brackets === 1) { |
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$isCommaLast = true; |
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if (empty($options['type'])) { |
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$ret->raw[] = trim($lastRaw); |
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$ret->values[] = trim($lastValue); |
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$lastRaw = $lastValue = ''; |
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} |
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} |
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continue; |
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} |
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} |
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if (empty($options['type'])) { |
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$lastRaw .= $token->token; |
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$lastValue .= $token->value; |
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} else { |
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$ret[] = $options['type']::parse( |
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$parser, |
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$list, |
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empty($options['typeOptions']) ? [] : $options['typeOptions'] |
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); |
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} |
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} |
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// Handling last element. |
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// |
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// This is treated differently to treat the following cases: |
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// |
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// => [] |
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// [,] => ['', ''] |
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// [] => [] |
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// [a,] => ['a', ''] |
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// [a] => ['a'] |
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$lastRaw = trim($lastRaw); |
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if (empty($options['type']) && ((strlen($lastRaw) > 0) || ($isCommaLast))) { |
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$ret->raw[] = $lastRaw; |
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$ret->values[] = trim($lastValue); |
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} |
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return $ret; |
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} |
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/** |
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* @param ArrayObj|ArrayObj[] $component the component to be built |
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* @param array<string, mixed> $options parameters for building |
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*/ |
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public static function build($component, array $options = []): string |
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{ |
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if (is_array($component)) { |
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return implode(', ', $component); |
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} |
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if (! empty($component->raw)) { |
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return '(' . implode(', ', $component->raw) . ')'; |
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} |
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return '(' . implode(', ', $component->values) . ')'; |
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} |
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public function __toString(): string |
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{ |
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return static::build($this); |
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} |
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} |
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phpmyadmin /
sql-parser
