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-rw-r--r--dev-haskell/equivalence/metadata.xml16
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diff --git a/dev-haskell/equivalence/metadata.xml b/dev-haskell/equivalence/metadata.xml
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+ <herd>haskell</herd>
+ <longdescription>
+ This is an implementation of Tarjan's Union-Find algorithm (Robert
+ E. Tarjan. "Efficiency of a Good But Not Linear Set Union
+ Algorithm", JACM 22(2), 1975) in order to maintain an equivalence
+ relation.
+ This implementation is a port of the /union-find/ package using the
+ ST monad transformer (instead of the IO monad).
+ </longdescription>
+ <upstream>
+ <remote-id type="bitbucket">paba/equivalence</remote-id>
+ </upstream>
+</pkgmetadata>