| CARVIEW |
Select Language
HTTP/2 200
expires: Thu, 19 Nov 1981 08:52:00 GMT
cache-control: no-store, no-cache, must-revalidate
pragma: no-cache
set-cookie: PHPSESSID=h431llq1pa2r8hkamtcdp2fpa9; path=/
content-type: text/html; charset=UTF-8
date: Sun, 28 Dec 2025 13:15:28 GMT
server: Apache
pkgsrc.se | The NetBSD package collection
archivers
audio
benchmarks
biology
cad
chat
comms
converters
cross
crosspkgtools
databases
devel
doc
editors
emulators
filesystems
finance
fonts
games
geography
graphics
ham
inputmethod
lang
mail
math
hs-semig..
mbone
meta-pkgs
misc
multimedia
net
news
parallel
pkgtools
print
regress
security
shells
sysutils
textproc
time
wip
wm
www
x11
* = Virtual Category
Path to this page:
./math/hs-semigroupoids, Semigroupoids: Category sans id
[
Branch: CURRENT, Version: 6.0.1nb3, Package name: hs-semigroupoids-6.0.1nb3, Maintainer: pho
Provides a wide array of (semi)groupoids and operations for working with them.
A Semigroupoid is a Category without the requirement of identity arrows
for every object in the category.
A Category is any Semigroupoid for which the Yoneda lemma holds.
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.
Required to run:
[devel/hs-tagged] [devel/hs-hashable] [devel/hs-transformers-compat] [devel/hs-unordered-containers] [math/hs-distributive] [math/hs-semigroups] [devel/hs-base-orphans] [math/hs-contravariant] [math/hs-comonad] [math/hs-bifunctors] [lang/ghc88]
Required to build:
[pkgtools/cwrappers]
Navigation:
-
Browse pkgsrc
(this page)
archivers
audio
benchmarks
biology
cad
chat
comms
converters
cross
crosspkgtools
databases
devel
doc
editors
emulators
filesystems
finance
fonts
games
geography
graphics
ham
inputmethod
lang
math hs-semig..mbone
meta-pkgs
misc
multimedia
net
news
parallel
pkgtools
regress
security
shells
sysutils
textproc
time
wip
wm
www
x11
* = Virtual Category
New packages:Path to this page:
./math/hs-semigroupoids, Semigroupoids: Category sans id
[ 
CVSweb ] [ 
Homepage ] [ 
RSS ] [ 
Required by ] [ 
Add to tracker ]
Branch: CURRENT, Version: 6.0.1nb3, Package name: hs-semigroupoids-6.0.1nb3, Maintainer: pho
Provides a wide array of (semi)groupoids and operations for working with them.
A Semigroupoid is a Category without the requirement of identity arrows
for every object in the category.
A Category is any Semigroupoid for which the Yoneda lemma holds.
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.
Required to run:
[devel/hs-tagged] [devel/hs-hashable] [devel/hs-transformers-compat] [devel/hs-unordered-containers] [math/hs-distributive] [math/hs-semigroups] [devel/hs-base-orphans] [math/hs-contravariant] [math/hs-comonad] [math/hs-bifunctors] [lang/ghc88]
Required to build:
[pkgtools/cwrappers]
Master sites:
Filesize: 35.52 KBVersion history: (Expand)
- (2025-10-24) Package has been reborn
- (2025-10-24) Package deleted from pkgsrc
- (2025-08-13) Updated to version: hs-semigroupoids-6.0.1nb3
- (2025-07-15) Package has been reborn
- (2025-07-15) Package deleted from pkgsrc
- (2025-03-05) Updated to version: hs-semigroupoids-6.0.1nb2
CVS history: (Expand)
| 2025-08-13 13:07:47 by Masatake Daimon | Files touched by this commit (1263) |
Log message: Bump all Haskell because lang/ghc910 has got a library change |
| 2025-03-05 04:40:14 by Masatake Daimon | Files touched by this commit (1173) |
Log message: recursive revbump after patching lang/ghc910 |
| 2025-02-02 14:06:08 by Masatake Daimon | Files touched by this commit (1173) |
Log message: Bump all Haskell packages after switching the default compiler. |
2025-01-30 05:20:41 by Masatake Daimon | Files touched by this commit (3) |  |
Log message: math/hs-semigroupoids: update to semigroupoids-6.0.1 6.0.1 [2024.05.04] ------------------ * Fix a build error when compiling with `-f-contravariant`. |
| 2024-05-09 03:32:57 by Masatake Daimon | Files touched by this commit (1137) |
Log message: Recursive revbump after changing the default Haskell compiler |
| 2024-05-02 06:15:24 by Masatake Daimon | Files touched by this commit (1) |
Log message: math/hs-semigroupoids: Fix build with GHC 9.8 This breaks build with the currently default GHC 9.6. Please bear with me until I switch the default compiler. |
| 2023-11-02 07:37:49 by Masatake Daimon | Files touched by this commit (1141) |
Log message: Revbump all Haskell after updating lang/ghc96 |
| 2023-10-30 08:45:17 by Masatake Daimon | Files touched by this commit (4) |
Log message: math/hs-semigroupoids: Update to 6.0.0.1 The change log is too long to paste here. See https://hackage.haskell.org/package/semigroupoids-6.0.0.1/changelog |