PREV_NOTWORD_CONSTRAINT  219 lib/regex_internal.h   WORD_FIRST = PREV_NOTWORD_CONSTRAINT | NEXT_WORD_CONSTRAINT,
PREV_NOTWORD_CONSTRAINT  221 lib/regex_internal.h   INSIDE_NOTWORD = PREV_NOTWORD_CONSTRAINT | NEXT_NOTWORD_CONSTRAINT,
PREV_NOTWORD_CONSTRAINT  500 lib/regex_internal.h   || ((constraint & PREV_NOTWORD_CONSTRAINT) && IS_WORD_CONTEXT (context)) \