groupoids-3.0.1.1/0000755000000000000000000000000012072405143012051 5ustar0000000000000000groupoids-3.0.1.1/.ghci0000644000000000000000000000012512072405143012762 0ustar0000000000000000:set -isrc -idist/build/autogen -optP-include -optPdist/build/autogen/cabal_macros.h groupoids-3.0.1.1/.gitignore0000644000000000000000000000010412072405143014034 0ustar0000000000000000dist docs wiki TAGS tags wip .DS_Store .*.swp .*.swo *.o *.hi *~ *# groupoids-3.0.1.1/.travis.yml0000644000000000000000000000033612072405143014164 0ustar0000000000000000language: haskell notifications: irc: channels: - "irc.freenode.org#haskell-lens" skip_join: true template: - "\x0313groupoids\x03/\x0306%{branch}\x03 \x0314%{commit}\x03 %{build_url} %{message}" groupoids-3.0.1.1/.vim.custom0000644000000000000000000000137712072405143014166 0ustar0000000000000000" Add the following to your .vimrc to automatically load this on startup " if filereadable(".vim.custom") " so .vim.custom " endif function StripTrailingWhitespace() let myline=line(".") let mycolumn = col(".") silent %s/ *$// call cursor(myline, mycolumn) endfunction " enable syntax highlighting syntax on " search for the tags file anywhere between here and / set tags=TAGS;/ " highlight tabs and trailing spaces set listchars=tab:‗‗,trail:‗ set list " f2 runs hasktags map :exec ":!hasktags -x -c --ignore src" " strip trailing whitespace before saving " au BufWritePre *.hs,*.markdown silent! cal StripTrailingWhitespace() " rebuild hasktags after saving au BufWritePost *.hs silent! :exec ":!hasktags -x -c --ignore src" groupoids-3.0.1.1/CHANGELOG.markdown0000644000000000000000000000020012072405143015074 0ustar00000000000000003.0.1 ----- * Updated build system * Removed my personal intra-package dependency upper bounds * Added `README` and `CHANGELOG` groupoids-3.0.1.1/groupoids.cabal0000644000000000000000000000157412072405143015057 0ustar0000000000000000name: groupoids category: Control, Categories version: 3.0.1.1 license: BSD3 cabal-version: >= 1.6 license-file: LICENSE author: Edward A. Kmett maintainer: Edward A. Kmett stability: experimental homepage: http://github.com/ekmett/groupoids/ bug-reports: http://github.com/ekmett/groupoids/issues copyright: Copyright (C) 2011-2013 Edward A. Kmett synopsis: Haskell 98 Groupoids description: Haskell 98 Groupoids build-type: Simple extra-source-files: .ghci .gitignore .vim.custom .travis.yml README.markdown CHANGELOG.markdown source-repository head type: git location: git://github.com/ekmett/groupoids.git library build-depends: base >= 4 && < 5, semigroupoids >= 3 exposed-modules: Data.Groupoid Data.Isomorphism ghc-options: -Wall hs-source-dirs: src groupoids-3.0.1.1/LICENSE0000644000000000000000000000266012072405143013062 0ustar0000000000000000Copyright 2011-2013 Edward Kmett All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the author nor the names of his contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. groupoids-3.0.1.1/README.markdown0000644000000000000000000000067312072405143014560 0ustar0000000000000000groupoids ========== [![Build Status](https://secure.travis-ci.org/ekmett/groupoids.png?branch=master)](http://travis-ci.org/ekmett/groupoids) A groupoid is a category where every arrow has an inverse. This package provides them for Haskell. Contact Information ------------------- Contributions and bug reports are welcome! Please feel free to contact me through github or on the #haskell IRC channel on irc.freenode.net. -Edward Kmett groupoids-3.0.1.1/Setup.lhs0000644000000000000000000000016512072405143013663 0ustar0000000000000000#!/usr/bin/runhaskell > module Main (main) where > import Distribution.Simple > main :: IO () > main = defaultMain groupoids-3.0.1.1/src/0000755000000000000000000000000012072405143012640 5ustar0000000000000000groupoids-3.0.1.1/src/Data/0000755000000000000000000000000012072405143013511 5ustar0000000000000000groupoids-3.0.1.1/src/Data/Groupoid.hs0000644000000000000000000000062412072405143015637 0ustar0000000000000000module Data.Groupoid ( Groupoid(..) ) where import Data.Semigroupoid import Data.Semigroupoid.Dual -- | semigroupoid with inverses. This technically should be a category with inverses, except we need to use Ob to define the valid objects for the category class Semigroupoid k => Groupoid k where inv :: k a b -> k b a instance Groupoid k => Groupoid (Dual k) where inv (Dual k) = Dual (inv k) groupoids-3.0.1.1/src/Data/Isomorphism.hs0000644000000000000000000000074012072405143016357 0ustar0000000000000000module Data.Isomorphism ( Iso(..) ) where import Data.Semigroupoid import Data.Groupoid import Control.Category import Prelude () data Iso k a b = Iso { embed :: k a b, project :: k b a } instance Semigroupoid k => Semigroupoid (Iso k) where Iso f g `o` Iso h i = Iso (f `o` h) (i `o` g) instance Semigroupoid k => Groupoid (Iso k) where inv (Iso f g) = Iso g f instance Category k => Category (Iso k) where Iso f g . Iso h i = Iso (f . h) (i . g) id = Iso id id