profunctors
Haskell 98 Profunctors (by ekmett)
readline-statevar
readline-statevar: Haskell readline wrapper library with variables (setX/getY) wrapped in state vars (by Tener)
profunctors | readline-statevar | |
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4 | - | |
69 | 1 | |
- | - | |
4.3 | 0.0 | |
2 months ago | over 14 years ago | |
Haskell | ||
GNU General Public License v3.0 or later | BSD 3-clause "New" or "Revised" License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
profunctors
Posts with mentions or reviews of profunctors.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-10-03.
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How to use PostgreSQL with Haskell: hasql
We’ll also use contravariant-extras, vector, profunctors, and tuple packages to make a few things tidier (this isn’t required; it’s all copy-paste anyway).
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The Haskell Unfolder Episode 2: quantified constraints
Edward Kmett already added a superclass to Profunctor, but releasing this got stalled
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Alternative to arrows?
One of the main problems with the Arrow hierarchy is that it’s not particularly well-factored. The main Arrow class has five methods, which is both intimidating to newcomers and indicative that there’s some decomplection that can be done. I think the best alternative is to use the profunctors package; it deals much more fluently with things that can take values and then return them (functions, Kleisli arrows, etc). For example, the Arrow class is broken down across Profunctor and Strong. I had a term rewriting engine that used arrows, and I was never really happy with it until I moved it to profunctors.
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Why kind-level foralls don't interact with ScopedTypeVariables
Indeed, that is a somewhat contrived example that is meant to illustrate that ScopedTypeVariables aren't just limited to standalone type signature declarations—they can also be used in arbitrary subexpressions as well. Whether you prefer to use type signature declarations or expression type signatures largely depends on your personal tastes, but both styles are used in the "real world". For instance, here is one example of a use of expression type signatures + ScopedTypeVariables in the profunctors library.¹
readline-statevar
Posts with mentions or reviews of readline-statevar.
We have used some of these posts to build our list of alternatives
and similar projects.
We haven't tracked posts mentioning readline-statevar yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
When comparing profunctors and readline-statevar you can also consider the following projects:
stratum-tool - Command-line tool for communicating with Electrum server
sbv - SMT Based Verification in Haskell. Express properties about Haskell programs and automatically prove them using SMT solvers.
groupoids - Haskell 98 Groupoids
constraints - Tools for programming with ConstraintKinds in GHC
sorty - Small sort utility
eventsource-api - Provides an eventsourcing high level API.
GPX - GPS eXchange Parser
OSM - Data structures and HXT parser for OpenStreetMap files
confsolve - Generalized file conflict resolving tool.
cli-extras
headroom - ©️ Manager for license headers in source code files.
thentos-cookie-session
profunctors vs stratum-tool
readline-statevar vs sbv
profunctors vs groupoids
readline-statevar vs constraints
profunctors vs sorty
readline-statevar vs eventsource-api
profunctors vs GPX
readline-statevar vs OSM
profunctors vs confsolve
readline-statevar vs cli-extras
profunctors vs headroom
readline-statevar vs thentos-cookie-session