[antlr-interest] Recursive statement in parser causes non-determinism error...

[Terence Parr]

On Wednesday, January 21, 2004, at 07:10 AM, Anthony Youngman wrote:

> Help! I'm sure there must be a simple option for this ...
>
> statement_line : (statement ( SEMI! statement)* ) ;
> statement : ( ifst ) ;
> ifst : ( "IF"^ expr THEN statement_line );
>
> So, statement_line can itself contain a statement_line, and antlr is
> objecting that when it hits the SEMI, it's non-deterministic, and
> presumably it doesn't know which statement_line the next statement
> belongs to. How do I tell the parser that the lowest-level
> statement_line is to be greedy and consume all statements until it hits
> something (such as an EOL) that doesn't parse as part of the
> statement_line.

Try using the greedy=true option and it will make antlr shut up :)

Ter
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