194 #define MATCHES_NEWLINE_CONTEXT(constraint, prevn, currn) \  argument
195   ((constraint) & 1 << (((prevn) ? 2 : 0) + ((currn) ? 1 : 0) + 4))
196 #define MATCHES_LETTER_CONTEXT(constraint, prevl, currl) \  argument
197   ((constraint) & 1 << (((prevl) ? 2 : 0) + ((currl) ? 1 : 0)))
198 #define SUCCEEDS_IN_CONTEXT(constraint, prevn, currn, prevl, currl) \  argument
199   (MATCHES_NEWLINE_CONTEXT(constraint, prevn, currn)		     \
200    && MATCHES_LETTER_CONTEXT(constraint, prevl, currl))
203 #define PREV_NEWLINE_DEPENDENT(constraint) \  argument
204   (((constraint) & 0xc0) >> 2 != ((constraint) & 0x30))
205 #define PREV_LETTER_DEPENDENT(constraint) \  argument
206   (((constraint) & 0x0c) >> 2 != ((constraint) & 0x03))
227   unsigned constraint;		/* Constraint for matching this position. */  member
247   unsigned char constraint;	/* Constraint for this state to accept. */  member
376 #define ACCEPTING(s, r) ((r).states[s].constraint)
381   SUCCEEDS_IN_CONTEXT((dfa).states[state].constraint,		   \