# context-free-art: Generate art from context-free grammars

Create art via context free grammar production rules.

### Context free grammar primer

Context free grammars consist of a set of terminal symbols, a set of non-terminal symbols, and production rules that map non-terminals to other symbols.

With a context-free grammar, we can generate strings of terminals that conform to the specified language.

Our language will describe graphics.

### Example

import Art.ContextFree import Data.List.NonEmpty -- Let's define a Production rule a = Circle 1 -- This will produce an IO Svg from the blaze-svg package -- to turn it into a string we can use one of the `blaze-svg` renderers graphic1 = interpret $ Circle 1 -- let's create a non-terminal, 'a', which renders a terminal, 'Circle 1' -- and has an 85% chance of rendering another circle, placed to its right a = NonTerminal $ (100, Circle 1) :| [(85, b)] b = Mod [Move (2, 0)] a

## Downloads

- context-free-art-0.2.0.2.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)

Versions [RSS] | 0.1.0.0, 0.2.0.0, 0.2.0.1, 0.2.0.2, 0.2.0.3, 0.3.0.0, 0.3.0.1 |
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Change log | CHANGELOG.md |

Dependencies | base (>=4.12 && <5), bifunctors (>=5.5), blaze-markup, blaze-svg (>=0.3.6), HUnit (>=1.6), random (>=1.1), text (>=1.2), text-show (>=3.8) [details] |

License | BSD-3-Clause |

Author | Owen Shepherd |

Maintainer | 414owen@gmail.com |

Category | Graphics |

Home page | https://github.com/414owen/context-free-art |

Uploaded | by 414owen at 2019-10-23T22:56:40Z |

Distributions | NixOS:0.3.0.1 |

Executables | tests |

Downloads | 2167 total (10 in the last 30 days) |

Rating | (no votes yet) [estimated by Bayesian average] |

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Status | Docs uploaded by user Build status unknown [no reports yet] |