Ruleby was: Rules based policy engine

Tilman Baumann tilman at
Tue Jul 22 15:13:54 CEST 2008

Scott wrote:
> I just found this inference engine.
> I working on a Rails project think Ruby is a great language to work 
> with.  And Ruby is pretty small..

A bit too many layers there for my taste. :)
A domain specific rules language implemented in ruby embedded in c?
The ruby layer does not seem to be thin enough to justify that.
(ok, writing rules in ruby is kind cool. As would any other real 
language be. Like lightweights like lua or certain lisp-ish languages. 
Even javascript would not be bad.)

Btw. I like the idea of a rules language. But why not something simple 
and stupid like for example SIEVE filters in cyrus imap.
That's a hand full of yacc and lex magic and some stupid engine code.
I mean, what we can match is pretty much defined by the fact that we 
match numbers and SMS.
A hand full of logic expressions on pre defined attributes should be enough.
My email filter is not smarter too, but email a lot more complicated. 
And it works well.

If someone puts the effort in to something like Prolog or Ruleby i will 
not argue. But it seems a bit overkill to me.

Drucken Sie diese Mail bitte nur auf Recyclingpapier aus.
Please print this mail only on recycled paper.

More information about the community mailing list