SimplePie_IRI::remove_dot_segments() │ protected │ WP 1.0

Remove dot segments from a path

{} Это метод класса: SimplePie_IRI{}

Хуков нет.

Возвращает

Строку.

Использование

// protected - в коде основоного (родительского) или дочернего класса
$result = $this->remove_dot_segments( $input );

$input(строка) (обязательный)

-

Код SimplePie_IRI::remove_dot_segments() SimplePie IRI::remove dot segments ^{WP 6.0.2}

protected function remove_dot_segments($input)
{
	$output = '';
	while (strpos($input, './') !== false || strpos($input, '/.') !== false || $input === '.' || $input === '..')
	{
		// A: If the input buffer begins with a prefix of "../" or "./", then remove that prefix from the input buffer; otherwise,
		if (strpos($input, '../') === 0)
		{
			$input = substr($input, 3);
		}
		elseif (strpos($input, './') === 0)
		{
			$input = substr($input, 2);
		}
		// B: if the input buffer begins with a prefix of "/./" or "/.", where "." is a complete path segment, then replace that prefix with "/" in the input buffer; otherwise,
		elseif (strpos($input, '/./') === 0)
		{
			$input = substr($input, 2);
		}
		elseif ($input === '/.')
		{
			$input = '/';
		}
		// C: if the input buffer begins with a prefix of "/../" or "/..", where ".." is a complete path segment, then replace that prefix with "/" in the input buffer and remove the last segment and its preceding "/" (if any) from the output buffer; otherwise,
		elseif (strpos($input, '/../') === 0)
		{
			$input = substr($input, 3);
			$output = substr_replace($output, '', strrpos($output, '/'));
		}
		elseif ($input === '/..')
		{
			$input = '/';
			$output = substr_replace($output, '', strrpos($output, '/'));
		}
		// D: if the input buffer consists only of "." or "..", then remove that from the input buffer; otherwise,
		elseif ($input === '.' || $input === '..')
		{
			$input = '';
		}
		// E: move the first path segment in the input buffer to the end of the output buffer, including the initial "/" character (if any) and any subsequent characters up to, but not including, the next "/" character or the end of the input buffer
		elseif (($pos = strpos($input, '/', 1)) !== false)
		{
			$output .= substr($input, 0, $pos);
			$input = substr_replace($input, '', 0, $pos);
		}
		else
		{
			$output .= $input;
			$input = '';
		}
	}
	return $output . $input;
}