pkgsrc-wip/hs-semigroupoids/distinfo

$NetBSD: distinfo,v 1.1.1.1 2012/02/01 16:28:59 phonohawk Exp $

SHA1 (semigroupoids-1.2.6.tar.gz) = 5ad666ce0392db37d9743f693c7115afe249fe5c
RMD160 (semigroupoids-1.2.6.tar.gz) = d93446fbf2bd685f041e6dd911262be00317fdb0
Size (semigroupoids-1.2.6.tar.gz) = 10222 bytes
Import hs-semigroupoids-1.2.6 as wip/hs-semigroupoids. Provides a wide array of semigroupoids and operations for working with semigroupds. A semigroupoid is a category without the requirement of identity arrows for every object in the category. When working with comonads you often have the <*> portion of an Applicative, but not the pure. This was captured in Uustalu and Vene's "Essence of Dataflow Programming" in the form of the ComonadZip class in the days before Applicative. Apply provides a weaker invariant, but for the comonads used for data flow programming (found in the streams package), this invariant is preserved. Applicative function composition forms a semigroupoid. Similarly many structures are nearly a comonad, but not quite, for instance lists provide a reasonable extend operation in the form of tails, but do not always contain a value. 2012-02-01 17:28:59 +01:00			$NetBSD: distinfo,v 1.1.1.1 2012/02/01 16:28:59 phonohawk Exp $

			`SHA1 (semigroupoids-1.2.6.tar.gz) = 5ad666ce0392db37d9743f693c7115afe249fe5c`
			`RMD160 (semigroupoids-1.2.6.tar.gz) = d93446fbf2bd685f041e6dd911262be00317fdb0`
			`Size (semigroupoids-1.2.6.tar.gz) = 10222 bytes`