lib/backtracking/internal
ABSTRACT_BACKTRACKING_GLOBALS
ABSTRACT_BACKTRACKING_POOL
ABSTRACT_BACKTRACKING_POOLABLE
ABSTRACT_BACKTRACKING_POOL_OF_CUT_POINT
BACKTRACKING_GLOBALS
BACKTRACKING_POOL_OF_ALTERNATIVE
BACKTRACKING_POOL_OF_ALTERNATIVE_LIST
BACKTRACKING_POOL_OF_SEQUENCE
BACKTRACKING_POOL_OF_SEQUENCE_LIST