+ }
+ printLines(curNum, curNum, FALSE);
+ break;
+
+ case '-':
+ if (setCurNum(curNum - 1))
+ printLines(curNum, curNum, FALSE);
+ break;
+
+ case '=':
+ printf("%d\n", num1);
+ break;
+ case '\0':
+ if (have1) {
+ printLines(num2, num2, FALSE);
+ break;
+ }
+ if (setCurNum(curNum + 1))
+ printLines(curNum, curNum, FALSE);
+ break;
+
+ default:
+ bb_error_msg("unimplemented command");
+ break;