+ } else if (what.str(2) == opening) {
+ // if we have another opening bracket,
+ // we might have a nested file chain
+ // as is (file.ext (subfile.ext))
+ fragment = !handleFoundFile(rtrim(what.str(1)), head);
+ // decrease first position by one in order to
+ // consider the opening delimiter on next iteration
+ if (first > token.begin())
+ --first;