OP_BACK_REF
if (type != OP_BACK_REF)
if (type == OP_BACK_REF)
case OP_BACK_REF:
if (node->token.type == OP_BACK_REF && dfa->subexp_map)
case OP_BACK_REF:
if (node->token.type == OP_BACK_REF)
if (dfa->nodes[org_node].type == OP_BACK_REF)
token->type = OP_BACK_REF;
case OP_BACK_REF:
else if (type == OP_BACK_REF)
else if (type == OP_BACK_REF)
if (type == OP_BACK_REF)
case OP_BACK_REF:
if (type != OP_BACK_REF)
if (node->type != OP_BACK_REF)