[antlr-interest] Why does it silently ignore invalid input?

[Terence Parr]

If anything is optional and it doesn't find DECLARE, it will simply say 
"matching 'nothing' is ok" :)

Ter

On Wednesday, June 4, 2003, at 09:32  AM, Paul J. Lucas wrote:

> I have a grammar with a second entry-point that I call.  In my 
> grammar, "DECLARE" is
> a keyword (must be upper-case).  When the generated parser encounters 
> "declare"
> (lower-case), it simply breaks out of the parse loop and returns.  Why 
> doesn't it throw
> an exception?
>
>
>
>
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