XCoherentFileSetmap SplitOnPosition(FileList *fileSet);
XCoherentFileSetmap SplitOnTagValue(FileList *fileSet,
uint16_t group, uint16_t elem);
XCoherentFileSetmap SplitOnPosition(FileList *fileSet);
XCoherentFileSetmap SplitOnTagValue(FileList *fileSet,
uint16_t group, uint16_t elem);