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# Francy

Francy is a package for GAP that provides a framework for Interactive Discrete Mathematics.

Unlike [XGAP](https://github.com/gap-packages/xgap), Francy is not linked with any GUI framework and instead,
this package is responsible for the generation of a semantic model that can be used to produce a graphical representation using any other framework / language.

See [Official Documentation](https://gap-packages.github.io/francy/doc/chap1.html)

There is javascript module responsible for generating a graphical representation of the semantic model,
that works on Jupyter, embedded in a Web page or as a Desktop Application (e.g. using electron).

See [Graphics Interface](/js)

## Binder

Jupyter Lab Binder

[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/gap-packages/francy/master?urlpath=lab)

The following notebooks are available:

|Notebook                        |Description                                                     |
|:-------------------------------|:---------------------------------------------------------------|
|francy-features.ipynb           | Contains examples of all features present in Francy            |
|francy-monoids-mult-three.ipynb | Contains an example of proofs used in a paper                  |
|francy-monoids.ipynb            | Contains FrancyMonoids package examples                        |
|francy-numericalsgps.ipynb      | Same as above, but the algorithms are visible in the notebook  |
|francy.ipynb                    | First notebook ever created with Francy                        |
|ICMS_2018.ipynb                 | Presentation notebook for the ICMS 2018 in USA                 |
|orbital-graphs.ipynb            | Contains some reseach algorithms for orbital graphs            |
|output-widget.ipynb             | Contains an example of the output of 'plain/text' elements     |
|subgroup-lattice.ipynb          | Contains Subgroup-Lattice package examples                     |

# Jupyter Integration

In order to use this module in JupyterLab, install it as follows:

```bash
mcmartins@local:~$ pip install -U jupyterlab-francy
```

If you still use the old JupyterNotebooks, you should use the latest version supported, v1.2.4:

```bash
mcmartins@local:~$ pip install -U jupyter-francy
```

This extension requires the JupyterKernel GAP package to be installed.
See [Jupyter GAP Kernel](https://github.com/gap-packages/JupyterKernel) for more information.

# Package Structure

|Directory   |Description                                                     |
|:-----------|:---------------------------------------------------------------|
| tst        | contains gap code tests                                        |
| scripts    | contains scripts used by travis                                |
| schema     | contains the francy JSON Schema                                |
| notebooks  | contains some notebooks with francy examples                   |
| js         | contains the source code of francy-js                          |
| gap        | contains the source code of francy-gap                         |
| examples   | contains examples used throughout francy-gap documentation     |
| doc        | contains introductory documentation for francy-gap             |

# Other projects based or inspired by Francy

| Project                                                    | Author                                           | Description                                              |
|:-----------------------------------------------------------|:-------------------------------------------------|:---------------------------------------------------------|
| [Jupyterviz](https://github.com/nathancarter/jupyterviz)   | [Nathan Carter](https://github.com/nathancarter) | Provides general purpose visualization tools             |
| [Francy Julia](https://github.com/fieker/Francy)           | [Claus Fieker](https://github.com/fieker)        | Francy ported to Julia language                          |
| [Francy Widgets](https://github.com/zerline/francy-widget) | [Odile Bénassy](https://github.com/zerline)      | Francy Python adapter for representing graphs in Jupyter |

## Releasing

All developments should happen on the branch `develop` and this should be merged into `master` when one is happy to release.

To update the JS packages version, run the following command and pick the new version:

```bash
user@local js/ $ yarn run version
```

To update the Python PyPi.org package version please update the version on:

* `js/packages/francy-extension-jupyterlab/pypproject.toml`

To release, the official [ReleaseTools](https://github.com/gap-system/ReleaseTools) procedure should be followed.

There are 2 workflows defined for this project:

* CI - This workflow runs all tests (JS and GAP) for every commit/pull request on branches `develop` and `master`
* RELEASE - This workflow runs the Python PyPi.org and NPM releases on new `tag`s created, normally after running the [ReleaseTools](https://github.com/gap-system/ReleaseTools) procedure.

# License

[MIT](LICENSE) License

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