[antlr-interest] Dealing with issues in non-greedy (.)* rules

[Terence Parr]

On May 10, 2007, at 12:08 PM, Marc-André Laverdière wrote:

> Hello,
>
> I just wanted to a) share a hack and b) ask for some help dealing  
> with blob-matching rules.
>
> I have the following rule:
> sh_code_blob
> 	:	( options {greedy=false;} : . )*
>            {if (false) throw new RecognitionException();};
>
> a) you will notice the "if (false) throw new RecognitionException();"
> This hack takes care of the compilation exception in the generated  
> parser for this rule, since the generated code tries to catch an  
> exception that won't ever be thrown.

Hmm... i think .+ would be better.  .* matches nothing, not a  
particularly useful input. ;)

that should remove error.

Ter