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<?php
declare(strict_types=1);
namespace Doctrine\ORM\Query\AST\Functions;
use Doctrine\DBAL\Platforms\TrimMode;
use Doctrine\ORM\Query\AST\Node;
use Doctrine\ORM\Query\Parser;
use Doctrine\ORM\Query\SqlWalker;
use Doctrine\ORM\Query\TokenType;
use function assert;
use function strcasecmp;
/**
* "TRIM" "(" [["LEADING" | "TRAILING" | "BOTH"] [char] "FROM"] StringPrimary ")"
*
* @link www.doctrine-project.org
*/
class TrimFunction extends FunctionNode
{
public bool $leading = false;
public bool $trailing = false;
public bool $both = false;
public string|false $trimChar = false;
public Node $stringPrimary;
public function getSql(SqlWalker $sqlWalker): string
{
$stringPrimary = $sqlWalker->walkStringPrimary($this->stringPrimary);
$platform = $sqlWalker->getConnection()->getDatabasePlatform();
$trimMode = $this->getTrimMode();
if ($this->trimChar !== false) {
return $platform->getTrimExpression(
$stringPrimary,
$trimMode,
$platform->quoteStringLiteral($this->trimChar),
);
}
return $platform->getTrimExpression($stringPrimary, $trimMode);
}
public function parse(Parser $parser): void
{
$lexer = $parser->getLexer();
$parser->match(TokenType::T_IDENTIFIER);
$parser->match(TokenType::T_OPEN_PARENTHESIS);
$this->parseTrimMode($parser);
if ($lexer->isNextToken(TokenType::T_STRING)) {
$parser->match(TokenType::T_STRING);
assert($lexer->token !== null);
$this->trimChar = $lexer->token->value;
}
if ($this->leading || $this->trailing || $this->both || ($this->trimChar !== false)) {
$parser->match(TokenType::T_FROM);
}
$this->stringPrimary = $parser->StringPrimary();
$parser->match(TokenType::T_CLOSE_PARENTHESIS);
}
/** @psalm-return TrimMode::* */
private function getTrimMode(): TrimMode|int
{
if ($this->leading) {
return TrimMode::LEADING;
}
if ($this->trailing) {
return TrimMode::TRAILING;
}
if ($this->both) {
return TrimMode::BOTH;
}
return TrimMode::UNSPECIFIED;
}
private function parseTrimMode(Parser $parser): void
{
$lexer = $parser->getLexer();
assert($lexer->lookahead !== null);
$value = $lexer->lookahead->value;
if (strcasecmp('leading', $value) === 0) {
$parser->match(TokenType::T_LEADING);
$this->leading = true;
return;
}
if (strcasecmp('trailing', $value) === 0) {
$parser->match(TokenType::T_TRAILING);
$this->trailing = true;
return;
}
if (strcasecmp('both', $value) === 0) {
$parser->match(TokenType::T_BOTH);
$this->both = true;
return;
}
}
}
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