ANCHOR_NOT_WORD_BOUND 1490 regcomp.c        case ANCHOR_NOT_WORD_BOUND:
ANCHOR_NOT_WORD_BOUND 4123 regcomp.c        ANCHOR_WORD_BOUND | ANCHOR_NOT_WORD_BOUND | \
ANCHOR_NOT_WORD_BOUND 4128 regcomp.c        ANCHOR_WORD_BOUND | ANCHOR_NOT_WORD_BOUND | \
ANCHOR_NOT_WORD_BOUND 6664 regcomp.c          case ANCHOR_NOT_WORD_BOUND:  fputs("not word bound", f); break;
ANCHOR_NOT_WORD_BOUND 3496 regparse.c           tok->u.anchor.subtype = ANCHOR_NOT_WORD_BOUND;