locomotivemtl / charcoal-object

    protected function finalizeSlug($slug)

    {

        $prefix = $this->slugPrefix();

        if ($prefix) {

            $prefix = $this->generateRoutePattern((string)$prefix);

            if ($slug === $prefix) {

                throw new UnexpectedValueException('The slug is the same as the prefix.');

            }

            $slug = $prefix.preg_replace('!^'.preg_quote($prefix).'\b!', '', $slug);

        }

        $suffix = $this->slugSuffix();

        if ($suffix) {

        }

        $suffix = $this->slugSuffix();

        if ($suffix) {

            $suffix = $this->generateRoutePattern((string)$suffix);

            if ($slug === $suffix) {

                throw new UnexpectedValueException('The slug is the same as the suffix.');

            }

            $slug = preg_replace('!\b'.preg_quote($suffix).'$!', '', $slug).$suffix;

        }

        $slug = rtrim($slug, '/');