SchXslt is copyright (c) 2018–2020 by David Maus <[email protected]> and released under the terms of the MIT license.

SchXslt is a Schematron processor implemented entirely in XSLT. It transforms a Schemtron schema document to an XSLT stylesheet that you apply to the document(s) to be validated.

As of date SchXslt does not properly implement the scoping rules of pattern and phase variables (see #315 and #316).

Schema, pattern, and phase variables are all implemented as global XSLT variables. As a consequence the name of a schema, pattern, or phase variable must be unique in the entire schema.

Due to the constrains of XSLT 1.0 and the way rules are implemented it is not possible to use a variable inside a rule context expression of a Schematron using the XSLT 1.0 query binding (see #318).

Depending on your environment there are several ways to install SchXslt.

• Starting with version 1.5 every release on this repository's release page provides a ZIP file with just the XSLT stylesheets. This page also provides a ZIP file with the XSLT stylesheets and two XProc 1.0 steps. Just download and unzip.

• A Java package is published to Maven Central. Use it with Maven or the Java dependency management tool of your choice.

• If you use BaseX or eXist you can download installable XQuery modulesq from this repository's release page as well.

The simplest way to use SchXslt is to download the ZIP file with just the stylesheets from the releaes page. To validate documents with your Schematron you first transform it with the pipeline-for-svrl.xsl stylesheet. This creates the XSL transformation that creates a validation report when applied to a document.

To use SchXslt in your Java application define the following Maven dependency:

<dependency>
  <groupId>name.dmaus.schxslt</groupId>
  <artifactId>schxslt</artifactId>
  <version>{VERSION}</version>
</dependency>

Where {VERSION} is replaced with the current SchXslt version.

Also take a look at SchXslt Java, a set of Java classes for Schematron validation with SchXslt.

The XQuery module provides a function schxslt:validate() that validates a document and returns a validation report expressed in the Schematron Validation Report Language (SVRL). You import the module using its namespace URI.

import module namespace schxslt = "https://doi.org/10.5281/zenodo.1495494";

let $document := <ex:example xmlns:ex="https://example.com/ns"/>
let $schema :=
  <sch:schema xmlns:sch="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2">
    <sch:pattern>
      <sch:rule context="/">
        <sch:assert test="true()">Always true</sch:assert>
      </sch:rule>
    </sch:pattern>
  </sch:schema>

return
  schxslt:validate($document, $schema)

TBD

TBD

SchXslt uses the Maven build tool to create installable packages. To create the packages for yourself clone this repository, install Maven and run it with the package phase.

dmaus@carbon ~ % git clone --recursive https://github.com/schxslt/schxslt.git
Cloning into 'schxslt'...
remote: Enumerating objects: 450, done.
remote: Counting objects: 100% (450/450), done.
remote: Compressing objects: 100% (298/298), done.
remote: Total 3789 (delta 172), reused 374 (delta 111), pack-reused 3339
Receiving objects: 100% (3789/3789), 470.87 KiB | 1.05 MiB/s, done.
Resolving deltas: 100% (1607/1607), done.

dmaus@carbon ~ % mvn package

This runs the unit tests and creates the following files:

• core/target/schxslt-{VERSION}.jar (Java archive)
• core/target/schxslt-{VERSION}-xslt-only.zip (ZIP file with stylesheets)
• exist/target/schxslt-exist-{VERSION}.xar (XQuery package for eXist)
• basex/target/schxslt-basex-{VERSION}.xar (XQuery package for BaseX)

Where {VERSION} is replaced with the current SchXslt version.