[antlr-interest] Re: Why No Error?
bogdan_mt at yahoo.com
Thu Aug 15 08:32:00 PDT 2002
> is there anything actually WRONG with me using:
> class CSVParser extends Parser;
> file : (line)+ ;
> line : (record)+ (NEWLINE|EOF);
> record : (r:RECORD) (COMMA)? ;
> I would have thought that if EOF is actually matched
> then this is a perfectly viable way of matching the
> whole file. In fact, IF the EOF IS matched then I see
> no reason NOT to use this way.
Should parse OK correct input. But I'm afraid it will also parse incorrect
input without producing any error.
For instance, try an input like:
a, b, c
a, , ,
which I think it's incorrect. I didn't test, but I expect that the parser
will stop after the first line, without any warning or error.
Let me know how it works.
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