# DHD UHac/Projects

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* https://github.com/haskellization/algorithms/wiki |
* https://github.com/haskellization/algorithms/wiki |
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+ | === regex-applicative === |
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+ | To learn about the project, see [https://github.com/feuerbach/regex-applicative/blob/master/README.md the README]. There will also be [http://www.haskell.org/haskellwiki/DHD_UHac/DHD_Program#regex-applicative a short talk] about it on the first day. |
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+ | The main challenge at the moment is to achieve decent performance. |
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+ | Interested: |
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+ | * Roman Cheplyaka |
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+ | === Kind-polymorphic Typeable === |
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+ | Implement [http://hackage.haskell.org/trac/ghc/wiki/GhcKinds/PolyTypeable the new kind-polymorphic Typeable] in GHC. |
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+ | Interested: |
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+ | * José Pedro Magalhães |
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+ | === Parser for physical units and quantities === |
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+ | Write a parser for the dimensional-tf package. |
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+ | Current status is a parser which parses physical units to a small expression language. The parsed units are normalised to the 7 base SI dimensions. |
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+ | The important part that doesn't work yet is to translate these expressions to Units and Quantities as defined by the dimensional-tf package. |
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+ | Interested: |
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+ | * Roel van Dijk |
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+ | Links: |
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+ | * https://github.com/roelvandijk/dimensional-tf-parser |
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+ | * http://hackage.haskell.org/package/dimensional-tf |
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+ | * https://github.com/bjornbm/dimensional-tf |
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+ | [[Category:Community]] |

## Latest revision as of 13:47, 17 December 2012

A big part of hackathons is working on projects together (in person, not online!). This page documents the projects at UHac.

If you want to suggest a project, add a subsection under Projects.

## Contents |

## [edit] 1 Sharing code

If you need a place to host a project so that others can help with it, there are many different options.

- GitHub is a popular social hosting service users of git
- Patch-Tag is a similar service for darcs.
- The Haskell.org community server is also available. Be sure to apply for an account first, since it may take some time.

## [edit] 2 Projects

Below are the projects potentially being undertaken at UHac.

- You can add your own project using the template found in the wiki source.
- You can add yourself to a project's list of interesting parties.

### [edit] 2.1 GHC Generics

Interested:

- José Pedro Magalhães
- Feel free to join! Also if you just have ideas of things that should work, or want to understand generics better

Plans:

- Implement deriving of
`Generic1`

- Write a description of other GP libs in the Haskell wiki
- Fix #5884
- Fix #5939
- Think about #5936
- Think harder about using data kinds

### [edit] 2.2 Standard algorithms

Objective point of this project is to implement or improve some standard algorithms like suffix arrays, z-function, cartesian trees, dijkstra algorithms which lack in standard library.

Interested:

- Victor Denisov

Links:

### [edit] 2.3 regex-applicative

To learn about the project, see the README. There will also be a short talk about it on the first day.

The main challenge at the moment is to achieve decent performance.

Interested:

- Roman Cheplyaka

### [edit] 2.4 Kind-polymorphic Typeable

Implement the new kind-polymorphic Typeable in GHC.

Interested:

- José Pedro Magalhães

### [edit] 2.5 Parser for physical units and quantities

Write a parser for the dimensional-tf package.

Current status is a parser which parses physical units to a small expression language. The parsed units are normalised to the 7 base SI dimensions.

The important part that doesn't work yet is to translate these expressions to Units and Quantities as defined by the dimensional-tf package.

Interested:

- Roel van Dijk

Links: