  TEST_BIT (RE_BACKSLASH_ESCAPE_IN_LISTS);
  TEST_BIT (RE_BK_PLUS_QM);
  TEST_BIT (RE_CHAR_CLASSES);
  TEST_BIT (RE_CONTEXT_INDEP_ANCHORS);
  TEST_BIT (RE_CONTEXT_INDEP_OPS);
  TEST_BIT (RE_CONTEXT_INVALID_OPS);
  TEST_BIT (RE_DOT_NEWLINE);
  TEST_BIT (RE_DOT_NOT_NULL);
  TEST_BIT (RE_HAT_LISTS_NOT_NEWLINE);
  TEST_BIT (RE_INTERVALS);
  TEST_BIT (RE_LIMITED_OPS);
  TEST_BIT (RE_NEWLINE_ALT);
  TEST_BIT (RE_NO_BK_BRACES);
  TEST_BIT (RE_NO_BK_PARENS);
  TEST_BIT (RE_NO_BK_REFS);
  TEST_BIT (RE_NO_BK_VBAR);
  TEST_BIT (RE_NO_EMPTY_RANGES);
  TEST_BIT (RE_UNMATCHED_RIGHT_PAREN_ORD);
