NEXT_WORD_CONSTRAINT  194 compat/regex/regex_internal.h #define NEXT_WORD_CONSTRAINT 0x0004
NEXT_WORD_CONSTRAINT  205 compat/regex/regex_internal.h   INSIDE_WORD = PREV_WORD_CONSTRAINT | NEXT_WORD_CONSTRAINT,
NEXT_WORD_CONSTRAINT  206 compat/regex/regex_internal.h   WORD_FIRST = PREV_NOTWORD_CONSTRAINT | NEXT_WORD_CONSTRAINT,