套件：libghc-lens-family-core-doc（2.0.0-1）

Haskell 98 Lens Families; documentation

This package provides first-class functional references. In addition to the usual operations of getting, setting and composition, plus integration with the state monad, lens families provide some unique features:

 * Polymorphic updating
 * Traversals
 * Cast projection functions to read-only lenses
 * Cast "toList" functions to read-only traversals
 * Cast semantic editor combinators to modify-only traversals.

This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.

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