[Haskell-cafe] ANNOUNCE: lenses -- Simple Functional Lenses

[Job Vranish]

A simple but powerful implementation of function lenses (aka functional
references, accessors, etc..).

This library provides a convenient way to access and update the elements of
a structure. It is very similar to Data.Accessors, but simpler, a bit more
generic and has fewer dependencies. I particularly like how cleanly it
handles nested structures in state monads. It also contains a couple simple
functions that can be used to easily convert a function that fetches data
from a structure to a function that modifies data in the structure.

Hackage hasn't generated the haddock documentation yet, but there is a
mini-tutorial in Data.Lenses that explains it's use.
Also for those that are interested it's also hosted on github here:
http://github.com/jvranish/Lenses/tree/master

Let me know what you think,
Criticism is welcome,

- Job
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