112     const PosPtr REnd = getBeforeFront();  in decrement()  local
118       if (PosPtr SepEnd = consumeSeparator(RStart, REnd)) {  in decrement()
119         if (SepEnd == REnd)  in decrement()
120           return makeState((RStart == REnd + 2) ? PS_InRootName : PS_InRootDir,  in decrement()
129         PosPtr TkStart = consumeName(RStart, REnd);  in decrement()
130         if (TkStart == REnd + 2 && consumeSeparator(TkStart, REnd) == REnd)  in decrement()
137       return makeState(PS_InFilenames, consumeName(RStart, REnd) + 1, RStart + 1);  in decrement()
139       PosPtr SepEnd = consumeSeparator(RStart, REnd);  in decrement()
140       if (SepEnd == REnd)  in decrement()
141         return makeState((RStart == REnd + 2) ? PS_InRootName : PS_InRootDir,  in decrement()
143       PosPtr TkEnd = consumeName(SepEnd, REnd);  in decrement()
144       if (TkEnd == REnd + 2 && consumeSeparator(TkEnd, REnd) == REnd)  in decrement()