ANN: Dogelog Player 1.0.5 (Chat-80 in Novacore)

[Mostowski Collapse]

Dear All,

We are happy to announce a new edition of
the Dogelog player:

- library(compat):
To match the Dogelog player's 100% Prolog label,
we added the sort/2 and keysort/2 predicates,
written in Prolog itself. In the Novacore sense,
the implementation does not require additional
native predicates and behaves the same under
Python and JavaScript.

- library(aggregate):
We also added the predicates bagof/3 and setof/3,
again written in Prolog itself. The implementation
is once more, in the sense of Novacore, without
additional native predicates, only term_variables/2
was extended in term_variables/3.

- Chat-80 Example:
As a proof of concept for an application of these
predicates, we ported Chat-80, a natural language
question-answer system by D.H.D. Warren and F.C.N.
Pereira, to Dogelog Player. It is transpiled
about 400 kBytes that can be loaded in the browser
in less than 100 ms.

Have Fun!
Jan Burse, 06.04.2023, http://www.xlog.ch/

[Angel]

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See You on the addresses......

[Mostowski Collapse]

Dogelog Player is a 100% Prolog implementation
of a Prolog system that targets the JavaScript and
the Python platform. We got interested in the JavaScript
Object Notation (JSON) format. We present a first
realization of a little unparser/parser library which
is again written in Prolog itself.

Our Prolog systems get away without implementation
specific dict or string datatypes. Our register of sins only
contains new constants 0rNone, 0rFalse and 0rTrue. We
attribute the nice performance of the parser to a first
argument indexing programming style.

See also:

JSON Unparser/Parser in Dogelog Player
https://twitter.com/dogelogch/status/1647918275832033283

JSON Unparser/Parser in Dogelog Player
https://www.facebook.com/groups/dogelog

[Mostowski Collapse]

Dogelog Player is a Prolog system that is 100%
written in Prolog. Some of its ancestors is formerly
Jekejeke Prolog which had a couple of toolings, such
as a predicate index generator and a Prolog text pretty
printer. We gave these tools a new spin.

Instead of first loading the Prolog texts into
the Prolog system, we deviced a new approach based
on source to source transformation. Some hara-kiri
experiments show that using a 100% Prolog implementations
for the read and write routines gives an
acceptable factor 4x slow down.

See also:

Indexer and Beautify for Dogelog Player
https://twitter.com/dogelogch/status/1650486681575866369

Indexer and Beautify for Dogelog Player
https://www.facebook.com/groups/dogelog

Mostowski Collapse schrieb:

[Mostowski Collapse]

Dogelog Player is a Prolog system that is

written 100% in Prolog that targets the
JavaScript and Python platform. So far we
supported HTML generation via a library(markup).
A new library(react) takes care of HTML events.
Here is a first report on its current state.

Armed with new API calls we could use some
Prolog code to register event handlers that
allow paning the content of SVG output area
by changing its coordinate system. Some corners
still need some work, but the solution has
already advanced to event capturing outside
of the initial target.

See also:

Preview library(react) for Dogelog Player
https://twitter.com/dogelogch/status/1655958238246973441

Preview library(react) for Dogelog Player

[Mostowski Collapse]

Apache Ant Tasks is an XML based definition
format that is typically executed in a Java
runtime. It can provide a platform independent
model (PIM) for a variety of tasks. We began
using Ant Tasks for some testing automatization
in Dogelog Prolog.

We faced some challenges in defining the test
cases Prolog code as a single point of
truth (SPOT). By code refactoring and using
common features we arrived at covering Dogelog
Player, formerly Jekejeke Prolog, SWI-Prolog
and Trealla Prolog under one umbrella.

By means of argv Prolog flag and the initialzation/1
directive we wrote an universal testing scripts.
By further using Prolog system specific facades and
operating system specific Ant imports, we could
semi-automate the generation of a HTML report that
combines different Prolog system results
across Windows 10 and WSL2.

See also:

Ant Tasks for Dogelog Prolog
https://twitter.com/dogelogch/status/1660579469088702464

Ant Tasks for Dogelog Prolog

https://www.facebook.com/groups/dogelog

Mostowski Collapse schrieb:

[Mild Shock]

Dogelog Player is a Prolog system 100%
written in Prolog based on Novacore, a
very small Prolog kernel and bundled set
of libraries. We started adopting the
Novacore libraries by formerly Jekejeke
Prolog and are now heading into
allowing them for GNU Prolog.

GNU Prolog doesn’t support bigint or
Unicode, which we could workaround in
that we disabled these test cases. Maybe
there are forks around that support these
features? The results are encouraging,
GNU Prolog currently has some precentage
failure rate around 25%.

See also:

Novacore Libraries on GNU Prolog
https://twitter.com/dogelogch/status/1663580904885714958

Novacore Libraries on GNU Prolog

[Mild Shock]

We recently submerged into accessing OpenAI API
via HTTP POST requests. They are now supported by
both Jekejeke Prolog and Dogelog Player. While
testing the Dogelog Player HTTP POST requests we
stepped over some limitation of common echo
servers and built our own.

We chose the Java based implementation from
Apache of the Tomcat web server that can even
serve the HTTP/2 protocol. By means of our Echo
servlet we could start testing Dogelog Player
in the browser, concerning the new support for
open options method/1, body/1 and headers/1.

See also:

Roll your Echo Server via Tomcat - Dogelog, 2023
https://twitter.com/dogelogch/status/1666516167152771095

Roll your Echo Server via Tomcat - Dogelog, 2023
https://www.facebook.com/groups/dogelog