ONIG_SYN_OP2_ESC_V_VTAB 52 ext/mbstring/oniguruma/regparse.c ONIG_SYN_OP2_ESC_CAPITAL_M_BAR_META | ONIG_SYN_OP2_ESC_V_VTAB | ONIG_SYN_OP2_ESC_V_VTAB 2110 ext/mbstring/oniguruma/regparse.c if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ESC_V_VTAB)) ONIG_SYN_OP2_ESC_V_VTAB 153 ext/mbstring/oniguruma/regsyntax.c ONIG_SYN_OP2_ESC_V_VTAB | ONIG_SYN_OP2_ESC_U_HEX4 |