[isabelle-dev] NEWS: Remote provers from SystemOnTPTP via Isabelle/Scala

[Makarius]

On 14/03/2021 22:19, Makarius wrote:
> 
> And here is the actual implementation in Isabelle/Scala (using HTTP POST
> requests):
> 
> https://isabelle-dev.sketis.net/source/isabelle/browse/default/src/HOL/Tools/ATP/system_on_tptp.scala;e92f2e44e4d8

For completeness, this is the underlying HTTP module in Isabelle/Scala:

https://isabelle-dev.sketis.net/source/isabelle/browse/default/src/Pure/General/http.scala;69d449f0ca04

More than 10 years ago, I was promoting the use of perl as "universal system
glue". Now we can do it more concisely in Isabelle/Scala, without external
dependencies, and with fine points adjusted to Isabelle standards. The above
is < 10Kb for client and server, which is used for isabelle.preview in
Isabelle/jEdit.

It is still too early to ask the canonical question about "any remaining uses
of perl": there are still quite a lot in small scripts that are not
incorporated in Isabelle/Scala yet, e.g. "isabelle latex".


	Makarius