Package Exports

merweb
merweb/index.js

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Readme

🕸 Merweb

Merweb (Mermaid meets Semantic Web) is library and command line interface to generate SHACL shapes and vocabularies from Mermaid class diagrams.

Usage

Install via npm i -g merweb.
Execute tool via merweb -f path/to/diagram -s path/to/jsonld. You can try

merweb -f examples/diagram.txt \
  -s shapes.jsonld \
  -b "sc=https://w3id.org/idlab/ns/supply-chain/#" \
  -v "sc=https://w3id.org/idlab/ns/supply-chain/#" \
  -c vocab.jsonld

Examples

You can find example diagrams in the folder examples.

Annotations

Memweb reuses one existing Mermaid annotation and uses five new annotations to generate the correct shapes and vocabularies from the class diagrams. Below you can find a table of these annotations.

Annotation	Description	Shape	Vocabulary	Existing or new annotation
`@type`	The type of as class	Object of `sh:targetNode`	A `rdfs:Class`	New
`@extraTypes`	The extra types of as class	Object of `sh:property` with `rdf:type` as `sh:path`	A `rdfs:Class`	New
`@label`	The label of a class or property	N/A	Object of `rdfs:label`	New
`@comment`	The comment of a class or property	N/A	Object of `rdfs:comment`	New
Cardinality on a class attribute	The cardinality of datatype property	Objects of `sh:minCount` and `sh:maxCount`	N/A	New
Cardinality on a relationship between two classes	The cardinality of object property	Objects of `sh:minCount` and `sh:maxCount`	N/A	Existing

Remove annotations from diagrams

You can remove the annotations starting with @ from diagrams via the -r, --remove-annotations option. The changed diagram is outputted to the terminal.

merweb -f examples/diagram.txt -r

License

This code is copyrighted by Ghent University – imec and released under the MIT license.