B_AT_OP_PLUS
| term '+' fterm { $$ = ba_op(B_AT_OP_PLUS, $1, $3); }
case B_AT_OP_PLUS ... B_AT_OP_LOR:
case B_AT_OP_PLUS ... B_AT_OP_LOR:
case B_AT_OP_PLUS:
case B_AT_OP_PLUS:
case B_AT_OP_PLUS ... B_AT_OP_LOR:
case B_AT_OP_PLUS ... B_AT_OP_LOR:
case B_AT_OP_PLUS ... B_AT_OP_LOR:
case B_AT_OP_PLUS ... B_AT_OP_LOR: