143     const PosPtr RStart = getCurrentTokenStartPos() - 1;  in decrement()  local
144     if (RStart == REnd) // we're decrementing the begin  in decrement()
150       if (PosPtr SepEnd = consumeSeparator(RStart, REnd)) {  in decrement()
152           return makeState(PS_InRootDir, Path.data(), RStart + 1);  in decrement()
153         return makeState(PS_InTrailingSep, SepEnd + 1, RStart + 1);  in decrement()
155         PosPtr TkStart = consumeName(RStart, REnd);  in decrement()
156         return makeState(PS_InFilenames, TkStart + 1, RStart + 1);  in decrement()
160       return makeState(PS_InFilenames, consumeName(RStart, REnd) + 1,  in decrement()
161                        RStart + 1);  in decrement()
163       PosPtr SepEnd = consumeSeparator(RStart, REnd);  in decrement()
165         return makeState(PS_InRootDir, Path.data(), RStart + 1);  in decrement()