Sequence           31 tools/greg.h   typedef enum { Freed = -1, Unknown= 0, Rule, Variable, Name, Dot, Character, String, Class, Action, Predicate, Error, Alternate, Sequence, PeekFor, PeekNot, Query, Star, Plus, Any } NodeType;
Sequence           52 tools/greg.h   struct Sequence	 { NODE_COMMON; Node *first;  Node *last;						};