Ron Buckton wrote:
>  The reduce/reduce conflict recognizing a left sentential form '[' E ']'
>  vs. M '?' '[' E ']' shows the fatal ambiguity.
> > /be

There is also ambiguity due to ASI vs. a ConditionalExpression:

```
obj ? [ expr ]
:label
```

Ron

Colon goes after label :-P. But the problem is bounded lookahead, ideally k=1. We are not specifying backtracking...

/be
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