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authorSergei Trofimovich <slyfox@gentoo.org>2017-02-16 08:36:18 +0000
committerSergei Trofimovich <slyfox@gentoo.org>2017-02-16 10:21:54 +0000
commit29771599ef057766cb7554113cc04e255d399fc5 (patch)
tree16e4e1c6dc53d815eda14d90e054c21503bb4748 /dev-haskell/lens-family-core/metadata.xml
parentdev-haskell/glut: bump up to 2.7.0.11 (diff)
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dev-haskell/lens-family-core: new package, a depend of dev-haskell/persistent-2.6
Haskell 98 Lens Families Package-Manager: Portage-2.3.3, Repoman-2.3.1
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+ <maintainer type="project">
+ <email>haskell@gentoo.org</email>
+ <name>Gentoo Haskell</name>
+ </maintainer>
+ <longdescription>
+ 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.
+
+ ( ) For optimal first-class support use the @lens-family@ package with rank 2 / rank N polymorphism.
+ "Lens.Family.Clone" allows for first-class support of lenses and traversals for those who require Haskell 98.
+ </longdescription>
+</pkgmetadata>