Re: Pengine - the Prolog engine running SWISH

Dear Torbjörn,

That 's great stuff.

If you are looking for examples to add to the 8 queens, may I suggest 
graph [library(ugraphs)] visualisation with d3 [1],(for example [2]).

Nicos Angelopoulos
---
http://bioinformatics.nki.nl/~n.angelopoulos

[1] http://d3js.org/
[2] http://rkirsling.github.io/modallogic/



On Thu, 15 Aug 2013 14:57:26 +0200
Torbjörn Lager <[email protected]> wrote:

> Yes, I call it Pengine, my platform in the works. Pengine is short for
> "Prolog engine" and the platform comprises a special purpose web
> server and a tiny but rich JavaScript library wrapping a set of web
> API:s for access to Prolog from web clients. SWISH and a number of
> small demo apps are currently running on it.
> 
> 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
> 
> Apparently, "Pengine" is also a word in Swahili that means "perhaps",
> "maybe", "possibly" or something like that. And perhaps, maybe,
> possibly Pengine will turn out to be THE way to do web logic
> programming in the future. I like to think so. I'm fairly sure that
> "ordinary" web developers will appreciate the fact that the JavaScript
> API feels very natural for a JavaScript programmer, and the fact that
> they don't need to know or learn a lot of Prolog in order to make good
> use of it. I like to think that something like Pengine can inspire
> JavaScript programmers to learn (more) Prolog.
> 
> Experienced Prolog programmers might also be interested in Pengine.
> You need to know a little bit of HTML and a little bit of JavaScript
> of course, but not much. As can be seen in the Scratchpad and in the
> tutorial, the way you write your Prolog code is also very natural. The
> fact that if you choose, you can allow clients to run arbitrary but
> safe Prolog code on the server is of course an interesting and
> sometimes very useful feature. But that's just one attractive Pengine
> feature out of many in my opinion. What makes me believe that
> something similar to Pengine might become THE way to build web apps in
> Prolog (and other LP languages) is the nice way in which Prolog and
> JavaScript play together on the API level. You need to have looked
> closely at the tutorial and studied the demo programs to understand
> why I think it works so well.
> 
> 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 promise to fight back. :-) But please also take into
> consideration that this is an early and somewhat incomplete release of
> Pengine.
> 
> Now, off to build that snazzy Pengine Server Admin GUI that is needed
> before Pengine can be released...
> 
> Best regards,
> Torbjörn
> 
> 
> 
> -- 
> Torbjörn Lager
> Professor of General and Computational Linguistics
> Department of Philosophy, Linguistics and Theory of Science
> University of Gothenburg
> Box 200, SE-405 30 Gothenburg, Sweden
> Phone: +46317864962
> _______________________________________________
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