From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail2-relais-roc.national.inria.fr (mail2-relais-roc.national.inria.fr [192.134.164.83]) by c5ff346549e7 (Postfix) with ESMTPS id 05F6D5D5 for ; Tue, 31 Dec 2019 09:18:52 +0000 (UTC) X-IronPort-AV: E=Sophos;i="5.69,378,1571695200"; d="scan'208,217";a="429510586" Received: from sympa.inria.fr ([193.51.193.213]) by mail2-relais-roc.national.inria.fr with ESMTP; 31 Dec 2019 10:18:50 +0100 Received: by sympa.inria.fr (Postfix, from userid 20132) id 61D007F3B1; Tue, 31 Dec 2019 10:18:50 +0100 (CET) Received: from mail2-relais-roc.national.inria.fr (mail2-relais-roc.national.inria.fr [192.134.164.83]) by sympa.inria.fr (Postfix) with ESMTPS id 3F7AF7ED20 for ; Tue, 31 Dec 2019 10:18:39 +0100 (CET) X-IronPort-AV: E=Sophos;i="5.69,378,1571695200"; d="scan'208,217";a="429510496" Received: from cbg35-2-78-242-14-140.fbx.proxad.net (HELO set) ([78.242.14.140]) by mail2-relais-roc.national.inria.fr with ESMTP/TLS/AES256-GCM-SHA384; 31 Dec 2019 10:18:38 +0100 From: Alan Schmitt To: "lwn" , "cwn" , caml-list@inria.fr Date: Tue, 31 Dec 2019 10:18:38 +0100 Message-ID: <87y2usx381.fsf@polytechnique.org> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="=-=-=" Subject: [Caml-list] Attn: Development Editor, Latest OCaml Weekly News Reply-To: Alan Schmitt X-Loop: caml-list@inria.fr X-Sequence: 17924 Errors-to: caml-list-owner@inria.fr Precedence: list Precedence: bulk Sender: caml-list-request@inria.fr X-no-archive: yes List-Id: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: base64 SGVsbG8NCg0KSGVyZSBpcyB0aGUgbGF0ZXN0IE9DYW1sIFdlZWtseSBOZXdzLCBmb3IgdGhlIHdl ZWsgb2YgRGVjZW1iZXIgMTcgdG8gMzEsDQoyMDE5Lg0KDQpTb3JyeSBmb3IgdGhlIGhpYXR1cyBs YXN0IHdlZWssIEkgd2FzIGF3YXkgd2l0aCBubyBpbnRlcm5ldA0KYWNjZXNzLiBIYXBweSBuZXcg eWVhciENCg0KVGFibGUgb2YgQ29udGVudHMNCuKUgOKUgOKUgOKUgOKUgOKUgOKUgOKUgOKUgOKU 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OCaml Weekly News

Previous Week Up Next Week

Hello

Here is the latest OCaml Weekly News, for the week of December 17 to 31, 20= 19.

Sorry for the hiatus last week, I was away with no internet access. Happy new year!

Internships at Be Sport (OCaml, Ocsigen)

Archive: https://sympa.inria.fr/sympa/arc/caml-list/2019-12/msg00023.html=

Be Sport announced

Be Sport currently has several open internship positions for OCaml developers.

Keywords: OCaml, Ocsigen, Mobile app development, Web, Database, Sport, Social networks

Be Sport develops the first global platform dedicated to sport, in collaboration with prominent actors of sport in France and in the world. All our development is done in OCaml. Our Web and mobile apps (iOS, Android) are developed as a multi-tier app using the Ocsigen framework. Our premises are located in the center of Paris.

Please contact me for more information.

ocaml-lsp preview

Archive: https://discuss.ocaml.org/t/ann-ocaml-lsp-preview/4876/1

Rudi Grinberg announced

I'm excited to announce ocam= l-lsp. This project contains an implementation of an LSP server for the= OCaml language. The current implementation piggy backs on the widely succe= ssful merlin tool to provide comp= letion & type inference. In the future, we'd like to use all other esse= ntial tools such as ocamlformat, odoc, dune to provide more functionality i= n your editors.

For now, the project isn't yet available on opam as we're still polishing s= ome rough edges in the release process. Nevertheless, I invite all brave so= uls who are ready to experiment to give this lsp server a try. Your feedbac= k & contributions are most welcome :slight_smile:

UnixJunkie asked and Anton Kochkov replied

This project looks nice.

If I am an Emacs or Vi user, can I take advantage of an LSP server?

Or, is this only for some new editors like Atom or VScode?

@UnixJunkie of course! That's the whole point of this tooling.

For Vim you can choose between:

I am not an Emacs expert, but there is amazing LSP integration too:

3D"b8acd745527e=

Pau Ruiz Safont said

Neovim 0.5.0 (now pre-released) has native LSP support as well: https://github.com/neovim/neov= im/pull/11336

Not sure how well integrated is it going to be with various plugins (example)

Anton Kochkov added

NeoVim 0.5.0 will also include the tree-sitter parser for syntax highlighting, which will a= llow way better coloring. And tree-sitter already has OCaml grammar, so implementing semantics-aware syntax highlighter will be eas= ier. But I expect the support more or less ready for external contributions= only in 0.6.0, sadly. Integrating the tool with something like GitHub Semantic (Haskell alert) will greatly improve OCaml expe= rience on GitHub too, see the corresponding issue.

Pieter Goetschalckx said

The next step for Semantic support is documented here, = but I'm working on some improv= ements of the tree-sitter parser first.

Carlos D'Agostino said

For Emacs there is also eglot: https://github.com/joaotavora/eglot – As the RE= ADME says, it's quite minimalist compared to lsp-mode.

Reproducible builds with OCaml / opam and MirageOS

Archive: https://discuss.ocaml.org/t/reproducible-buil= ds-with-ocaml-opam-and-mirageos/4877/1

Hannes Mehnert announced

I wrote up recent developments about reproducible builds with opam –= including some tooling https://hannes.nqsb.io/Posts/ReproducibleOPAM

Thanks to everyone involved in the effort to get OCaml and opam determinist= ic

The journey is not yet finished, we're in a pretty good shape, but further = testing and tooling is needed to expose the information "is my library repr= oducible?" to OCaml developers.

I'm interested in feedback, please let us discuss this further here in case= you're interested. :D

Anil Madhavapeddy added

An absolutely amazing cross-layer effort; well done on pushing all this thr= ough @hannes! I really enjoyed reading the minutes of the Paris summit las= t year: https://reproducible-builds.org/events/paris2018/repor= t/#Toc11681_331763073

the OCaml Software Foundation

Archive: https://discuss.ocaml.org/t/ann-the-ocaml-software-foundati= on/4476/13

Continuing this thread, gasche announced

A small report on the actions that we launched since my initial posting.

(There was also some progress on the "enabling individual donations" front,= maybe something will be possible in the next few months. Don't start holdi= ng your breath yet.)

  • We are funding the "Leafs" research project in Lisbon to develop teachi= ng material for theoretical-computer-science courses (automata and stuff) i= n OCaml, with interactive visualization components, some of which will hope= fully be integrated in the Learn-OCaml platform over the course of 2020/2021.
  • We provide funding for the Gallium= /Cambium research team at INRIA Paris (France), an active place for OCa= ml-related fundamental research (some of the team members are also very act= ive on the implementation front, for example Xavier Leroy, Damien Doligez, = Florian @octachron Angeletti, and S=C3=A9bastien Hinderer).
  • We sponsor the SWERC progr= amming contest for 2019-2020, and in return the contest added OCaml to the = list of available languages. Most participants to these competitive-program= ming events use C++, but we talked to past and active participants who said= they would be interested in using OCaml on some problems with more symboli= c computation.
  • Over the course of the 4.10 release process, we are funding work by @ki= t-ty-kate to have a wide look at the ecosystem and improve compatibility wi= th the upcoming release. (I believe that the upstream PR #9176 is a first result of this effo= rt.)
  • In reaction to the Discourse thread Suggestions for OCaml documen= tation, we are planning to fund further work by @sanette to experiment = with the HTML rendering of the OCaml manual, in coordination with @octachro= n to try to upstream improvements when reasonably possible.
  • We got in touch with the Owl project to sponsor a development= sprint in 2020.

soupault: a static website generator based on HTML rewriting

Archive: https://discuss.ocaml.org/t/a= nn-soupault-a-static-website-generator-based-on-html-rewriting/4126/10

Daniil Baturin announced

Made a 1.7.0 release.

First improvement is that you now can pipe the content of any element throu= gh any external program with preprocess_element widget (PR by = Martin Karlsson). For example, insert inline SVG versions of all graphviz graphs from &= lt;pre class=3D"language-graphviz"> and also highlight the Dot so= urce itself with highlight (or any ot= her tool of your choice): 

[widgets.graphviz-svg]
  widget =3D 'preprocess_element'
  selector =3D 'pre.language-graphviz'
  command =3D 'dot -Tsvg'
  action =3D 'insert_after'

[widgets.highlight]
  after =3D "graphviz-svg"
  widget =3D "preprocess_element"
  selector =3D '*[class^=3D"language-"]'
  command =3D 'highlight -O html -f --syntax=3D$(echo $ATTR_CLASS | sed -e =
"s/language-//")'
  action =3D "replace_content" # default

3D"a4d8cc05d656=

Two other improvements are multiple index "views" and default value option = for custom index fields, like 

[index.custom_fields]
  category =3D { selector =3D "span#category", default =3D "Misc" }

Release of owl-symbolic 0.1.0

Archive: https://discuss.ocaml.org/t/announce-release-of-owl-sym= bolic-0-1-0/4930/1

jrzhao42 announced

We are please to release owl-symbolic 0.1.0. It fully supports defining a computation gr= aph and running on accelerators (TPU/GPU) via = ONNX specification. It also aims to support converting an Owl computation graph into symbolic representation= and then to ONNX model. The module also has some cool features like conver= ting a computation graph into LaTeX string, and then showing the result in = a web UI, etc.

We implements a full neural network module atop of it (the interface of whi= ch is basically identical to that in Owl's core). It turns out that the des= ign of owl-symbolic is so nice that the DNN module only has 17= 9 LOC! You can easily define popular DNN architectures such as Inception, ResNet, VGG, etc. just = like in Owl.

This is still an on-going project and a lot remains to be done. Despite its= name, owl-symbolic does not do any useful computer algebra (C= AS) stuff at the moment, but CAS is indeed on our TODO.

For more information, please check out the related section in Owl tutorial book.

Old CWN

If you happen to miss a CWN, you can send me a message and I'll mail it to you, or go take a loo= k at the archive or the RSS feed of the archives<= /a>.

If you also wish to receive it every week by mail, you may subscribe online.

Alan Schmitt

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