spec test index / oilshell.org
| status | oil | oil_ALT | |
| pass | 4 | 4 | |
| total | 4 | 4 | |
| case | oil | oil_ALT | description |
| 0 | pass | pass | $[f(x)] |
| 1 | pass | pass | $[d['key']] |
| 2 | pass | pass | $[d->key] |
| 3 | pass | pass | In Double quotes |
8 passed, 0 OK, 0 not implemented, 0 BUG, 0 failed, 0 timeouts, 0 cases skipped