ONIG_SYN_ALLOW_DOUBLE_RANGE_OP_IN_CC  688 regint.h           ONIG_SYN_BACKSLASH_ESCAPE_IN_CC | ONIG_SYN_ALLOW_DOUBLE_RANGE_OP_IN_CC )
ONIG_SYN_ALLOW_DOUBLE_RANGE_OP_IN_CC 4392 regparse.c     	if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_DOUBLE_RANGE_OP_IN_CC)) {
ONIG_SYN_ALLOW_DOUBLE_RANGE_OP_IN_CC   73 regsyntax.c          ONIG_SYN_ALLOW_DOUBLE_RANGE_OP_IN_CC )