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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Backup\Filesystem\Iterator;
/**
* File lines iterator
*
* @author Magento Core Team <core@magentocommerce.com>
*/
class File extends \SplFileObject
{
/**
* The statement that was last read during iteration
*
* @var string
*/
protected $_currentStatement = '';
/**
* Store current statement delimiter.
*
* @var string
*/
private string $statementDelimiter = ';';
/**
* Return current sql statement
*
* @return string
*/
#[\ReturnTypeWillChange]
public function current()
{
return $this->_currentStatement;
}
/**
* Iterate to next sql statement in file
*
* @return void
*/
#[\ReturnTypeWillChange]
public function next()
{
$this->_currentStatement = '';
while (!$this->eof()) {
$line = $this->fgets();
$trimmedLine = trim($line);
if (!empty($trimmedLine) && !$this->isDelimiterChanged($trimmedLine)) {
$statementFinalLine = '/(?<statement>.*)' . preg_quote($this->statementDelimiter, '/') . '$/';
if (preg_match($statementFinalLine, $trimmedLine, $matches)) {
$this->_currentStatement .= $matches['statement'];
break;
} else {
$this->_currentStatement .= $line;
}
}
}
}
/**
* Check whether statement delimiter has been changed.
*
* @param string $line
* @return bool
*/
private function isDelimiterChanged(string $line): bool
{
if (preg_match('/^delimiter\s+(?<delimiter>.+)$/i', $line, $matches)) {
$this->statementDelimiter = $matches['delimiter'];
return true;
}
return false;
}
/**
* Return to first statement
*
* @return void
*/
#[\ReturnTypeWillChange]
public function rewind()
{
parent::rewind();
$this->next();
}
/**
* Check whether provided string is comment
*
* @param string $line
* @return bool
*/
protected function _isComment($line)
{
return $line[0] == '#' || ($line && substr($line, 0, 2) == '--');
}
}