Open Source project suitable for 2-3 persons this fall?

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Open Source project suitable for 2-3 persons this fall?

Anders Bech Mellson
Is there any project that needs working this fall which could be used as a university project?

I am in the university (M.Sc. in software development),
so I am mainly looking for project ideas (preferably concrete ones).

We are 2-3 students that have ~10 hours pr week for 3 months to work on a project.

Is there a listing somewhere with project ideas for contributing to the Haskell community?

Thanks in advance,
Anders

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Re: Open Source project suitable for 2-3 persons this fall?

Alp Mestanogullari
I have an idea or two for websites that would be really useful to the community I think, and not enough time to do it myself for the moment. One is not finished but already in good shape, the other I barely started. If websites would be fine (this would be haskell + pgsql + html/css/js/whatever), then shoot me an email to discuss this :-)


On Thu, Jul 4, 2013 at 5:26 PM, Anders Bech Mellson <[hidden email]> wrote:
Is there any project that needs working this fall which could be used as a university project?

I am in the university (M.Sc. in software development),
so I am mainly looking for project ideas (preferably concrete ones).

We are 2-3 students that have ~10 hours pr week for 3 months to work on a project.

Is there a listing somewhere with project ideas for contributing to the Haskell community?

Thanks in advance,
Anders

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[hidden email]
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--
Alp Mestanogullari

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Re: Open Source project suitable for 2-3 persons this fall?

Jeremy Shaw-3
In reply to this post by Anders Bech Mellson
I'm still interested in getting the scoutess project pushed the last 10% of the way to being useable:




The code does mostly work -- but it doesn't quite actually do anything useful yet :-/

A next good step would be to get the haddock doc building working. cabal now has sandboxes, and someone recently released a tool to make it easier to do standalone building of haddock documentation.

One nice that about the scoutess project is that it is designed to be extensible through a lot of small modules. So that makes it easy to bite off a small portion to work on rather than trying to dive into some huge complex beast.

- jeremy


On Thu, Jul 4, 2013 at 10:26 AM, Anders Bech Mellson <[hidden email]> wrote:
Is there any project that needs working this fall which could be used as a university project?

I am in the university (M.Sc. in software development),
so I am mainly looking for project ideas (preferably concrete ones).

We are 2-3 students that have ~10 hours pr week for 3 months to work on a project.

Is there a listing somewhere with project ideas for contributing to the Haskell community?

Thanks in advance,
Anders

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[hidden email]
http://www.haskell.org/mailman/listinfo/haskell-cafe



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Re: Open Source project suitable for 2-3 persons this fall?

Tobias Dammers
In reply to this post by Anders Bech Mellson
There's one of my hobby projects that could use some manpower to
bootstrap it into a production-quality tool. It's an HTML templating
system; right now it reads input templates in one of two languages (one
very declarative, very similar to Python's jinja2, the other being a
locally-pure functional language with a curly-bracket syntax), and it
can output PHP and JavaScript as well as execute templates directly in
Haskell code. There's also a rather experimental JSON-based intermediate
format, designed for high-security scenarios (JSON can be parsed
quickly, but because it cannot contain arbitrary code, a compromised
compiler can be mitigated by whitelisting what the runtime can do; this
way, only the runtime has to be audited, not the compiler).

There is an incomplete implementation of a PHP library that can
interpret this intermediate JSON format, but it hasn't been used in any
production-quality project yet.

The core part is the compiler, consisting of a
Parsec-based parser, an AST, an optimizer, and a few backends.

The unique selling points:

* Pre-compile your templates - now you can have the cake (expressive
  clean template language) and eat it too (great performance, because
  it's pre-compiled to your web app's native language).
* Use the same template for PHP, Haskell and JavaScript (and maybe
  others, too).
* Bye bye XSS: HTML-encoding is the default.
* Extensible: Hook up your own native functions - it's as simple as
  adding a function to your template input data, then calling it inside
  the template.

It could use some work in a lot of areas; projects could include, for
example:

- Getting the JavaScript backend to support 100% of the language
  features (right now, only the direct-execution and PHP backends pass
  all tests)
- Implement some glue to allow easy embedding in Haskell web
  applications (yesod / happstack / snap)
- Add more features to the input language (some of which would also
  require some changes to the backends), e.g.:
  - range literals
  - list comprehensions
  - indexed for-each, or some way of getting the current iteration's
        index; very useful for things like zebra-stripe data grids and
        such
- Add other backends (Python and Ruby would be the most obvious
  candidates, but I'm really open to anything)
- Add more library functions
- A better optimizer
- Some tooling and integration support, e.g. some kind of mechanism to
  switch between executing on-the-fly (for development) and using
  pre-compiled templates (for production), something to implement
  graceful degrading on the client side (use client-side templates when
  possible, fall back to postbacks and server-side templates as needed),
  syntax highlighters for popular editors, etc.

Anyway, here's the source:

https://bitbucket.org/tdammers/hpaco

The PHP lib/script that can produce and run a subset of the JSON
intermediate format is here:

https://bitbucket.org/tdammers/phpaco

(Any contributions, feedback, etc., very welcome)

On Thu, Jul 04, 2013 at 05:26:59PM +0200, Anders Bech Mellson wrote:

> Is there any project that needs working this fall which could be used as a
> university project?
>
> I am in the university (M.Sc. in software development),
> so I am mainly looking for project ideas (preferably concrete ones).
>
> We are 2-3 students that have ~10 hours pr week for 3 months to work on a
> project.
>
> Is there a listing somewhere with project ideas for contributing to the
> Haskell community?
>
> Thanks in advance,
> Anders

> _______________________________________________
> Haskell-Cafe mailing list
> [hidden email]
> http://www.haskell.org/mailman/listinfo/haskell-cafe


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Re: Open Source project suitable for 2-3 persons this fall?

Guillaume Hoffmann
In reply to this post by Anders Bech Mellson
Hi Anders,

the Darcs project has a few proposals that you can look at:
http://darcs.net/GSoC

The proposals were written for summer of code projects that involve
more time dedication, but they can be reshaped into smaller projects.
Feel free to mail me or to discuss it on the #darcs IRC channel on
irc.freenode.net.

Guillaume

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Re: Open Source project suitable for 2-3 persons this fall?

Brent Yorgey-2
In reply to this post by Anders Bech Mellson
On Thu, Jul 04, 2013 at 05:26:59PM +0200, Anders Bech Mellson wrote:

> Is there any project that needs working this fall which could be used as a
> university project?
>
> I am in the university (M.Sc. in software development),
> so I am mainly looking for project ideas (preferably concrete ones).
>
> We are 2-3 students that have ~10 hours pr week for 3 months to work on a
> project.
>
> Is there a listing somewhere with project ideas for contributing to the
> Haskell community?

I am a bit late, but there are quite a few things that could be done
for the diagrams project [1].  Some project ideas are at [2], and more
can be found on the bug tracker [3].

[1] http://projects.haskell.org/diagrams/
[2] http://www.haskell.org/haskellwiki/Diagrams/Projects
[3] https://github.com/diagrams/diagrams-lib/issues?state=open

-Brent

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