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Reactive-banana

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== What is it? ==
 
== What is it? ==
   
''Reactive-banana'' is a library for [[Functional Reactive Programming]] (FRP).
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<div style="float:left;">
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[[Image:Reactive-Banana-banana.png|Reactive banana displaying trigger-happy <code>Behavior</code>.]]</div>
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''Reactive-banana'' is a practical library for [[Functional Reactive Programming]] (FRP).
   
 
Support the project with a small donation: [http://flattr.com/thing/384682/reactive-banana http://api.flattr.com/button/flattr-badge-large.png]
 
Support the project with a small donation: [http://flattr.com/thing/384682/reactive-banana http://api.flattr.com/button/flattr-badge-large.png]
   
The goal is to create a solid foundation for anything FRP-related.
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FRP offers an elegant and concise way to express interactive programs such as graphical user interfaces, animations, [[Reactive-balsa|computer music]] or robot controllers. It promises to avoid the spaghetti code that is all too common in traditional approaches to GUI programming.
* Users can finally start experimenting with '''graphical user interfaces''' based on FRP as the library can be hooked into ''any'' existing event-based framework like [[wxHaskell]] or [[Gtk2Hs]]. A plethora of [[#documentation|example code]] helps with getting to know the library.
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* Programmers interested in implementing FRP will have a '''reference''' for a '''simple semantics''' with a working implementation.
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The goal of the library is to provide a solid foundation.
* It features an '''efficient implementation'''. No more spooky time leaks, predicting space & time usage should be straightforward.
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* Writing '''graphical user interfaces''' with FRP is made easy. The library can be hooked into ''any'' existing event-based framework like [[wxHaskell]] or [[Gtk2Hs]]. A plethora of [[#documentation|example code]] helps with getting started. You can mix FRP and imperative style. If you don't know how to express functionality in terms of FRP, just temporarily switch back to the imperative style.
  +
* Programmers interested in the implementation of FRP will have a '''reference''' for a '''simple semantics''' with a working implementation. The library stays close to the semantics pioneered by Conal Elliott.
  +
* The library features an '''efficient implementation'''. No more spooky time leaks, predicting space & time usage should be straightforward.
   
 
[[#feedback|Feedback]] is welcome, I want to hear from you!
 
[[#feedback|Feedback]] is welcome, I want to hear from you!
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Current development focuses on dynamic event switching. Examples from game programming and computer music are planned.
 
Current development focuses on dynamic event switching. Examples from game programming and computer music are planned.
   
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* 26 August 2012: reactive-banana 0.7.0.0 released. Features dynamic event switching.
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* 15 May 2012: reactive-banana 0.6.0.0 released.
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* 25 March 2012: reactive-banana 0.5.0.0 released.
 
* 24 October 2011: reactive-banana 0.4.3.0 released.
 
* 24 October 2011: reactive-banana 0.4.3.0 released.
 
* 26 September 2011: Added some more examples, reactive-banana 0.4.2.0 released.
 
* 26 September 2011: Added some more examples, reactive-banana 0.4.2.0 released.
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* 22 June 2011: reactive-banana 0.3.0.0 released
 
* 22 June 2011: reactive-banana 0.3.0.0 released
 
* 28 April 2011: reactive-banana 0.2.0.0 released
 
* 28 April 2011: reactive-banana 0.2.0.0 released
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== Fake Testimonials ==
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"In the programming-language world, one rule of survival is simple: dance or die. This library makes dancing easy." – ''Simon Banana Jones''
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"About the use of language: it is impossible to sharpen a pencil with a blunt axe. You should try reactive-banana instead." — ''Event Dijkstra''
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"When I need a <code>bullet</code> event, I can just trigger it." — ''Billy the Reactive Banana''
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"This should be in a museum!" — ''Banana Jones''
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"Hey Mister! Why not use reactive-banana as a smartphone app to brush your teeth?" — ''Tommy "Banana" Johnson''
   
 
== Releases and Resources ==
 
== Releases and Resources ==
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** {{HackagePackage|id=reactive-banana-wx}} - binding to the [[wxHaskell]] GUI library
 
** {{HackagePackage|id=reactive-banana-wx}} - binding to the [[wxHaskell]] GUI library
 
* <span id="documentation">Documentation</span>
 
* <span id="documentation">Documentation</span>
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** [[FRP explanation using reactive-banana | Tutorial: Explanation of FRP using reactive-banana]]
 
** [http://hackage.haskell.org/package/reactive-banana API reference]
 
** [http://hackage.haskell.org/package/reactive-banana API reference]
 
** '''[[/Examples/]]'''
 
** '''[[/Examples/]]'''
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** Maintainer: [http://apfelmus.nfshost.com/ Heinrich Apfelmus] <apfelmus at quantentunnel de>
 
** Maintainer: [http://apfelmus.nfshost.com/ Heinrich Apfelmus] <apfelmus at quantentunnel de>
 
** Bugs and feature requests? [https://github.com/HeinrichApfelmus/reactive-banana/issues?sort=created&direction=desc&state=open Issue Tracker!]
 
** Bugs and feature requests? [https://github.com/HeinrichApfelmus/reactive-banana/issues?sort=created&direction=desc&state=open Issue Tracker!]
** Questions? [http://stackoverflow.com/questions/ask?tags=reactive-programming+haskell+frp Ask on StackOverflow!]
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** Questions? [http://stackoverflow.com/questions/ask?tags=reactive-programming+haskell+frp+reactive-banana Ask on StackOverflow!]
 
* Source code on github
 
* Source code on github
** [https://github.com/HeinrichApfelmus/reactive-banana/tree/master/reactive-banana reactive-banana] source
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** [https://github.com/HeinrichApfelmus/reactive-banana/tree/develop/reactive-banana reactive-banana] development branch
** [https://github.com/HeinrichApfelmus/reactive-banana/tree/master/reactive-banana-wx reactive-banana-wx] source
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** [https://github.com/HeinrichApfelmus/reactive-banana/tree/develop/reactive-banana-wx reactive-banana-wx] development branch
   
 
== External Links ==
 
== External Links ==
No external links yet.
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* [https://github.com/bernstein/breakout breakout], a small game
   
   
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[[Category:wxHaskell]]
 
[[Category:wxHaskell]]
 
[[Category:Packages]]
 
[[Category:Packages]]
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[[Category:Robotics]]

Revision as of 13:39, 13 November 2012

Contents

1 What is it?

Reactive banana displaying trigger-happy Behavior.

Reactive-banana is a practical library for Functional Reactive Programming (FRP).

Support the project with a small donation: flattr-badge-large.png

FRP offers an elegant and concise way to express interactive programs such as graphical user interfaces, animations, computer music or robot controllers. It promises to avoid the spaghetti code that is all too common in traditional approaches to GUI programming.

The goal of the library is to provide a solid foundation.

  • Writing graphical user interfaces with FRP is made easy. The library can be hooked into any existing event-based framework like wxHaskell or Gtk2Hs. A plethora of example code helps with getting started. You can mix FRP and imperative style. If you don't know how to express functionality in terms of FRP, just temporarily switch back to the imperative style.
  • Programmers interested in the implementation of FRP will have a reference for a simple semantics with a working implementation. The library stays close to the semantics pioneered by Conal Elliott.
  • The library features an efficient implementation. No more spooky time leaks, predicting space & time usage should be straightforward.

Feedback is welcome, I want to hear from you!

2 Status

Current development focuses on dynamic event switching. Examples from game programming and computer music are planned.

  • 26 August 2012: reactive-banana 0.7.0.0 released. Features dynamic event switching.
  • 15 May 2012: reactive-banana 0.6.0.0 released.
  • 25 March 2012: reactive-banana 0.5.0.0 released.
  • 24 October 2011: reactive-banana 0.4.3.0 released.
  • 26 September 2011: Added some more examples, reactive-banana 0.4.2.0 released.
  • 14 July 2011: Implemented many examples, reactive-banana 0.4.1.0 released.
  • 22 June 2011: reactive-banana 0.3.0.0 released
  • 28 April 2011: reactive-banana 0.2.0.0 released

3 Fake Testimonials

"In the programming-language world, one rule of survival is simple: dance or die. This library makes dancing easy." – Simon Banana Jones

"About the use of language: it is impossible to sharpen a pencil with a blunt axe. You should try reactive-banana instead." — Event Dijkstra

"When I need a bullet event, I can just trigger it." — Billy the Reactive Banana

"This should be in a museum!" — Banana Jones

"Hey Mister! Why not use reactive-banana as a smartphone app to brush your teeth?" — Tommy "Banana" Johnson

4 Releases and Resources

5 External Links