src/Debug/Config.php
private function normalizePath($path)
    {
        $path = \array_filter(\preg_split('#[\./]#', $path), 'strlen');
        if (\count($path) == 0 || $path[0] == '*') {
            return '';
        }
        $configKeys = $this->getConfigKeys();
        $found = false;
        foreach ($configKeys as $objName => $objKeys) {
            if (\in_array($path[0], $objKeys) && $objName !== 'debug') {
                $found = true;
                \array_unshift($path, $objName);
                break;
            }
            if ($path[0] == $objName && !empty($path[1])) {
                $found = true;
                break;
            }
        }
        if (!$found) {
            // we didn't find our key... assume debug
            \array_unshift($path, 'debug');
        }
        if (\end($path) == '*') {
            \array_pop($path);
        }
        return \implode('/', $path);
    }
private function normalizePath($path)
    {
        $path = \array_filter(\preg_split('#[\./]#', $path), 'strlen');
        if (\count($path) == 0 || $path[0] == '*') {
            return '';
        }
        $configKeys = $this->getConfigKeys();
        $found = false;
        foreach ($configKeys as $objName => $objKeys) {
            if (\in_array($path[0], $objKeys) && $objName !== 'debug') {
                $found = true;
                \array_unshift($path, $objName);
                break;
            }
            if ($path[0] == $objName && !empty($path[1])) {
                $found = true;
                break;
            }
        }
        if (!$found) {
            // we didn't find our key... assume debug
            \array_unshift($path, 'debug');
        }
        if (\end($path) == '*') {
            \array_pop($path);
        }
        return \implode('/', $path);
    }
Normalize string path
Returns either
''         empty string = all config values grouped by class
'{class}'         we want all config values for class
'{class}/{key}    want specific value from this class'
{class} may be debug

@param string $path string path

@return string