Difference between revisions of "Latest developments"

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* the '''iTask''' combinator library for the '''Web'''
 
* the '''iTask''' combinator library for the '''Web'''
  
At the ICFP 2007 conference we presented '''iTasks''' (see [http://www.st.cs.ru.nl/papers/2007/plar2007-ICFP07-iTasks.pdf]),
+
At the '''ICFP 2007''' conference we presented '''iTasks''' (see [http://www.st.cs.ru.nl/papers/2007/plar2007-ICFP07-iTasks.pdf]),
 
a multi-user workflow system for the web.
 
a multi-user workflow system for the web.
With this library one can assign tasks to users and control the order in which these tasks have to be performed. The system is also very suited for web form handling.
+
With this library one can assign tasks to users and control the order in which these tasks have to be performed.  
 +
A user uses a browser to perform the tasks assigned to him or her.
 +
The iTask system is therefore also very suited for  
 +
web programming and web form handling.
 
The tasks are defined on a very high level declarative monadic style.
 
The tasks are defined on a very high level declarative monadic style.
  
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With a simple annotation an iTask will be evaluated on the client instead of on the server.
 
With a simple annotation an iTask will be evaluated on the client instead of on the server.
 
To make this possible we run full blown Clean applications in the browser as Java applet, making use of the fast '''Sapl''' interpreter (see [http://www.st.cs.ru.nl/papers/2007/janj2007-TFP06-EfficientInterpretationOfSAPL.pdf]).
 
To make this possible we run full blown Clean applications in the browser as Java applet, making use of the fast '''Sapl''' interpreter (see [http://www.st.cs.ru.nl/papers/2007/janj2007-TFP06-EfficientInterpretationOfSAPL.pdf]).
 +
The system automatically switches between client side and server side evaluation when needed.
  
 
We will use and release this new system at the '''AFP-summerschool''' (see [http://www.st.cs.ru.nl/AFP_TFP_2008/])  
 
We will use and release this new system at the '''AFP-summerschool''' (see [http://www.st.cs.ru.nl/AFP_TFP_2008/])  
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* the '''Clean Compiler'''
 
* the '''Clean Compiler'''
 +
 +
We are adding a new front-end to the Clean compiler that will accept '''Haskell '98''' source code.
 +
Good news for many people, we hope.
 +
Not only there will be another Haskell compiler, we hope one that produces efficient code.
 +
Another important property is that ''Haskell and Clean code can be mixed''!
 +
So, Clean users can make use of Haskell libraries, while Haskell users
 +
can make use of Clean libraries (such as the iTask library) and Clean features (such as uniqueness typing, dynamics, generic programming).
 +
 +
Although many things already work, we don't dare to say anything about the release date.

Revision as of 17:28, 14 February 2008

The Clean Team does its best to deliver reliable software. It therefore might take some time before a new release is pubished. On this site we will keep you informed about the latest developments. Please be patient, software development always takes more time as expected.


  • the iTask combinator library for the Web

At the ICFP 2007 conference we presented iTasks (see [1]), a multi-user workflow system for the web. With this library one can assign tasks to users and control the order in which these tasks have to be performed. A user uses a browser to perform the tasks assigned to him or her. The iTask system is therefore also very suited for web programming and web form handling. The tasks are defined on a very high level declarative monadic style.

Have a look at the iTask pages (see [2])

The new release of the iTask library we are working on will support:

  • Ajax handling of iTasks;
  • Client side evaluation of iTasks.

With a simple annotation an iTask will be evaluated on the client instead of on the server. To make this possible we run full blown Clean applications in the browser as Java applet, making use of the fast Sapl interpreter (see [3]). The system automatically switches between client side and server side evaluation when needed.

We will use and release this new system at the AFP-summerschool (see [4])


  • the Clean Compiler

We are adding a new front-end to the Clean compiler that will accept Haskell '98 source code. Good news for many people, we hope. Not only there will be another Haskell compiler, we hope one that produces efficient code. Another important property is that Haskell and Clean code can be mixed! So, Clean users can make use of Haskell libraries, while Haskell users can make use of Clean libraries (such as the iTask library) and Clean features (such as uniqueness typing, dynamics, generic programming).

Although many things already work, we don't dare to say anything about the release date.