XMLSchema2ShEx is a tool to convert XML Schema files to "equivalent" Shape Expressions files. The goal is to support the translation from XML data to RDF, preserving the validation rules. It is based in the theoretical paper developed in the companion paper (see the Publications section) and implements a subset of the defined conversions (see the Supported features section).
❗ An experimental conversion to ShExML is being tested in this library letting users to scaffold the necessary mapping rules in a semi-automatic fashion and then validate the results.
| Supported features | Pending implementation |
|---|---|
| Complex type | Choice |
| Simple type | List |
| All | Union |
| Attributes | Extension |
| Restriction | Fraction Digits |
| Element | Length |
| Max exclusive | Max Length |
| Min exclusive | Min Length |
| Max inclusive | Total digits |
| Min inclusive | Whitespace |
| Enumeration | Unique |
| Pattern | |
| Cardinality |
The library provides two methods of operation: a CLI through the provided JAR package and a JVM compatible API.
The CLI can be called using the command $ java -jar XMLSchema2ShEx.jar [options] where options are as described below:
Usage: XMLSchema2ShEx [-hsV] -i=<file> [-o=<output>]
Convert from XML Schema to ShEx and more...
-h, --help Show this help message and exit.
-i, --input=<file> Path to XML Schema file
-o, --output=<output> Path where the output file should be created
-s, --shexml Generate ShExML scaffold
-V, --version Print version information and exit.
It can also be called from any JVM compatible language that has it as its dependency. The call should look like similar to the following snippet:
val shexResult = XMLSchema2ShexParser().parse(input)
val shexmlResult = XMLSchema2ShexParser().convertToShExML(input)For citation purposes please use the companion paper:
Garcia-Gonzalez, H., & Labra-Gayo, J. E. (2020). XMLSchema2ShEx:
Converting XML validation to RDF validation. Semantic Web, 11(2), 235-253.