antlr / antlr/antlr4

Show warning for epsilon alts in left-recursive rules

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#152 7 comments 0 reactions 1 assignee Claimed by @parrt View on GitHub
comp:tool grammars type:feature
Dominant language
Java
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Description

this will cause weirdness.

```
e : e '*' e
| e op
| INT
|
;
```

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