<img src="shex-logo.png" align="right" />
An implementation of the [ShEx] specification in Elixir.
It allows to run validations specified in the Shape Expressions language (ShEx) on RDF graphs.
> Shape Expressions (ShEx) is a language for describing RDF graph structures. A ShEx schema prescribes conditions that RDF data graphs must meet in order to be considered "conformant": which subjects, predicates, and objects may appear in a given graph, in what combinations and with what cardinalities and datatypes.
-- [Shape Expressions (ShEx) Primer](http://shex.io/shex-primer/#tripleConstraints)
The validation of larger amounts of nodes is done in parallel.
The API documentation can be found [here](https://hexdocs.pm/shex/). For a guide and more information about ShEx.ex and it's related projects, go to <https://rdf-elixir.dev>.
- the following ShEx features are not implemented yet:
- invalid shape expression references in negations are not checked
- external shapes
- semantic actions
- greedy matching
- non-ascii characters in regular expressions are not fully supported yet
## Consulting and Partnership
If you need help with your Elixir and Linked Data projects, just contact <firstname.lastname@example.org> or visit <https://www.cokron.com/kontakt>
## License and Copyright
(c) 2019-2020 Marcel Otto. MIT Licensed, see [LICENSE](LICENSE.md) for details.