On 22/09/2010 13:37, Wolfgang Laun wrote:

I've found this online service and stuffed the Drools grammar into it.

You may see the results while they are still there:
http://www-cgi.uni-regensburg.de/~brf09510/syntax.tmp/x45371x0x0x.ebnf.html

I found one of the problems with generated rail road diagrams is that they are often too low level, making it hard for them to be useful. They often splits things up into too small a pieces, as they are a literal translation of the grammar and not a logical representation for end users. That said it, it's probably better to have well maintained generated versinos, than out of date hand created ones. Just a shame there isn't a tool that allows for easy hand editing of rail raod diagrams.

I think part of the problem is caused by the lack of consistency in our grammar for exressions - evals, return values etc. Edson is working on that so we have a generic and clean grammar for expressions, this should add more regularity to our grammar.

Mark

-W


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