Neos\Neos\Routing\FrontendNodeRoutePartHandler::parseDimensionsAndNodePathFromRequestPathAllowingNonUniqueSegment PHP Method

    protected function parseDimensionsAndNodePathFromRequestPathAllowingNonUniqueSegment(&$requestPath)
    {
        $dimensionPresets = $this->contentDimensionPresetSource->getAllPresets();
        if (count($dimensionPresets) === 0) {
            return [];
        }
        $dimensionsAndDimensionValues = [];
        $chosenDimensionPresets = [];
        $matches = [];
        preg_match(self::DIMENSION_REQUEST_PATH_MATCHER, $requestPath, $matches);
        if (!isset($matches['firstUriPart'])) {
            foreach ($dimensionPresets as $dimensionName => $dimensionPreset) {
                $dimensionsAndDimensionValues[$dimensionName] = $dimensionPreset['presets'][$dimensionPreset['defaultPreset']]['values'];
                $chosenDimensionPresets[$dimensionName] = $dimensionPreset['defaultPreset'];
            }
        } else {
            $firstUriPart = explode('_', $matches['firstUriPart']);
            if (count($firstUriPart) !== count($dimensionPresets)) {
                throw new InvalidRequestPathException(sprintf('The first path segment of the request URI (%s) does not contain the necessary content dimension preset identifiers for all configured dimensions. This might be an old URI which doesn\'t match the current dimension configuration anymore.', $requestPath), 1413389121);
            }
            foreach ($dimensionPresets as $dimensionName => $dimensionPreset) {
                $uriSegment = array_shift($firstUriPart);
                $preset = $this->contentDimensionPresetSource->findPresetByUriSegment($dimensionName, $uriSegment);
                if ($preset === null) {
                    throw new NoSuchDimensionValueException(sprintf('Could not find a preset for content dimension "%s" through the given URI segment "%s".', $dimensionName, $uriSegment), 1413389321);
                }
                $dimensionsAndDimensionValues[$dimensionName] = $preset['values'];
                $chosenDimensionPresets[$dimensionName] = $preset['identifier'];
            }
            $requestPath = isset($matches['remainingRequestPath']) ? $matches['remainingRequestPath'] : '';
        }
        if (!$this->contentDimensionPresetSource->isPresetCombinationAllowedByConstraints($chosenDimensionPresets)) {
            throw new InvalidDimensionPresetCombinationException(sprintf('The resolved content dimension preset combination (%s) is invalid or restricted by content dimension constraints. Check your content dimension settings if you think that this is an error.', implode(', ', array_keys($chosenDimensionPresets))), 1462175794805);
        }
        return $dimensionsAndDimensionValues;
    }