Re: Pengine - the Prolog engine running SWISH

On Thu, Aug 15, 2013 at 6:57 AM, Torbjörn Lager <[email protected]>wrote:

> At this point I could use some feedback so you are hereby invited to
> take the first versions of Pengine Scratchpad, the Pengine JavaScript
> API Tutorial and (if you haven't tried it before) SWISH (which really
> hasn't changed much lately):
>
>  http://swish.spyderbrain.com:5003/scratchpad
>
>  http://swish.spyderbrain.com:5003/tutorial
>
>  http://swish.spyderbrain.com:5003/swish


This is some very impressive work.  I haven't gone through the entire
tutorial, but the JS API seems natural and productive.  I found the
Scratchpad examples helpful for bootstrapping my understanding of the
system.  I look forward to investigating in greater depth.


> So, what do you think? Could Pengine (or something similar) become THE
> way to do web logic programming in the future? Please be critical and
> feel free to argue as fiercely as you want against my admittedly very
> bold claim.


I personally think Prolog will make an excellent language for web
development (both client and server).  I've written so much JS code where I
thought, "This would be much better in Prolog".  My biggest concern with
Pengine is that it requires network round-trips.  Many applications,
especially on mobile devices, can't afford that kind of latency.

I predict that Prolog web development will eventually settle on a good
Prolog engine written in Javascript that's code compatible with SWI-Prolog.
 That would eliminate network latency, allow one to use SWI's extensive
library (at least the pure Prolog parts) and run the same code in both the
client and server.

-- 
Michael
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