LeftParen

LeftParen lets you make web apps quickly.

LeftParen 0.61 is a PLT Scheme web app framework. LP is in its early stages, and I need your help to improve it. Please contact support@leftparen.com with any questions, suggestions, or ideas. The documentation is pretty limited at this point, so please don't hesitate to email me with even the silliest of questions.

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News

May 5th 2009

LeftParen now works with PLT Scheme 4.1.5

LeftParen ~~0.6~~ 0.61 is now available. In the past, LeftParen has always required a pre-release version of PLT Scheme, but now it works with the currently available release version. How handy. Version ~~0.6~~ 0.61, by the way, is not compatible with any other version of PLT Scheme.

Update: The update from 0.6 to 0.61 adds the #:sticky optional argument to body-as-url as well as some documentation improvements.

Features

Automatic creation of the basic directory structure of your project
A "Hello, World" with zero lines of code
Simple data persistance storage through the "record" abstraction
No databases or schemas
Session and cookie support
User accounts and authentication out-of-the-box
Easy form creation
Simple URL mappings (like Rails' routes)

Acknowledgements

LeftParen was written by Rob Hunter but it builds heavily on (and, in fact, often directly incorporates) the work of Untyped (instaservlet and dispatch), Jens Axel Soegaard (web.plt), and, of course, PLT Scheme.