static function compose($path1, $path2)
{
// si path2 es ruta estatica no hay operaciones
if ($path2 != '' && $path2[0] == '/') {
return $path2;
}
$is_static = $path1 && $path1[0] == '/';
// las rutas se descomponen en arreglos
$ddir1 = Paths::__split($path1);
$ddir2 = Paths::__split($path2);
$res = array();
$isDir = 0;
foreach ($ddir1 as $directory) {
if ($directory == ".." && $isDir > 0) {
array_pop($res);
$isDir--;
continue;
}
if ($directory != "") {
if ($directory != "..") {
$isDir++;
}
array_push($res, $directory);
}
}
foreach ($ddir2 as $directory) {
if ($directory == ".." && $isDir > 0) {
array_pop($res);
$isDir--;
continue;
}
if ($directory != "..") {
$isDir++;
}
array_push($res, $directory);
}
if (count($res) == 1 && $res[0] == "") {
return "";
}
$res = implode("/", $res);
return ($is_static ? '/' : '') . $res . (is_dir($res) ? '/' : '');
}
