ONIG_SYN_OP_DECIMAL_BACKREF  804 regint.h          ONIG_SYN_OP_DECIMAL_BACKREF | \
ONIG_SYN_OP_DECIMAL_BACKREF  811 regint.h           ONIG_SYN_OP_POSIX_BRACKET | ONIG_SYN_OP_DECIMAL_BACKREF | \
ONIG_SYN_OP_DECIMAL_BACKREF 3656 regparse.c           if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_DECIMAL_BACKREF) &&
ONIG_SYN_OP_DECIMAL_BACKREF   92 regsyntax.c        ONIG_SYN_OP_QMARK_ZERO_ONE | ONIG_SYN_OP_DECIMAL_BACKREF |
ONIG_SYN_OP_DECIMAL_BACKREF  115 regsyntax.c        ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END | ONIG_SYN_OP_DECIMAL_BACKREF )