Re: [rules-dev] RFC: declaration syntax
Hehehe, always good to have your help. As you will see the skip one and
skip all tokens strategies are implemented. The "inject a token" and try
again is not, as that is a lot more complicated to do it and maintain
manually.
Edson
2011/7/27 Wolfgang Laun <wolfgang.laun(a)gmail.com>
On 27 July 2011 15:34, Edson Tirelli <ed.tirelli(a)gmail.com>
wrote:
>
> Just to explain how the parser recovers from errors, it tries to skip a
> token that fail to match the construct being parsed. If that still fails, it
> will skip all tokens until it finds the start of a top level construct (i.e.
> a statement like a rule, query, declare, etc) and resynch from there. If you
> have too many different top level keywords, it increases the probability
> that there will be a keyword clash and it will fail to resynch, resulting in
> cobolish errors for the rest of the file... :)
>
I think I'll read the parser once more, with an eye out for recovery ;-)
-W
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Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com
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