[Haskell-cafe] ANN: boomerang and web-routes-boomerang

[Jeremy Shaw]

Hello,

I am pleased to announce the release of two new libraries: boomerang
and web-routes-boomerang.

boomerang is a library for general purpose, invertible parsing and
pretty printing. It provides combinators which allow you to specify a
grammar once and automatically extract a parser and pretty-printer
from it. This library was refactored, with permission, from the Zwaluw
library created by Sjoerd Visscher and Martijn van Steenbergen.

hackage: http://hackage.haskell.org/package/boomerang
quick intro: http://hackage.haskell.org/packages/archive/boomerang/1.0.0/doc/html/Text-Boomerang.html

web-route-boomerang provides glue code for using boomerang with
web-routes. web-routes is a framework-independent, type-safe, url
routing library.

hackage: http://hackage.haskell.org/package/web-routes-boomerang
tutorial: http://happstack.com/docs/crashcourse/WebRoutes.html#web-routes-boomerang

- jeremy

p.s. boomerang is similar in purpose to the inveritble-syntax library:

http://hackage.haskell.org/package/invertible-syntax

The libraries take different approaches and are both worth considering.