Issue when parsing grammar with case-insensitive keywords (maybe fragment or precedence related) about antlr4rust HOT 5 CLOSED

Hmm.. without EOF in grammar it works. So the problem is in the EOF handling, not sure yet where it is exactly, though.

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I think omitting the EOF just makes the parser stop at the first thing it does not recognize without reporting an error and with None for the where clause.

But I just found another strange thing, if I change the grammar and query to use shorter keywords everything gets parsed correctly:

SELECT  : S E L;
WHERE   : W H;
AS      : A S;
FROM    : F R O M;
LIMIT   : L I M;

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In fact I can simplify the example to just

query   : SELECT EOF;

SELECT  : S E L E C T;

SPACES  : [ \t\r\n] -> skip ;

and when parsing "select" it prints:

line 1:0 token recognition error at: 'selec'
line 1:5 token recognition error at: 't'
line 1:6 missing SELECT at '<EOF>'
thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', src/main.rs:20:25

I pushed the simplified example to my repo.

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Thanks, that indeed helped. Forgot to calculate initial hash in one place. I will fix it in 0.1.1 soon.
I have published antlr-rust on cargo recently, so you can start using it as normal dependency, if you want.

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Sorry for the late reply, version 0.1.1 fixed the issue and works very nicely. Thanks a lot!

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