Happstack web framework, indexing engine - documentation

 Happstack is a Haskell web framework, designed so that developers can
 prototype quickly, deploy painlessly, scale massively, operate reliably,
 and change easily. It supports GNU/Linux, OS X, FreeBSD, and Windows
 environments.
 .
 Happstack provides you with all the components you need to build and
 deploy your application, which is completely self-contained.
 Particularly, Happstack provides the application with a distributed and
 persistent data storage layer, capable to interact with the application
 itself directly in terms of Haskell data structures.
 .
 Happstack-ixset is an indexing engine Happstack applications can use
 to quickly retrieve the data they're interested into.
 .
 This package contains the library documentation.