Have you guys had a look at https://github.com/phax/ph-schematron

[jkiddo]

No description provided.

[braeckel]

I was not aware of this library, thanks for sending it along. It appears to be quite similar in approach to what is currently implemented for Schematron support (i.e., XSLT transformation using Saxon of the ISO Schematron XSLT scripts). At the moment the current implementation is working well, but perhaps you are aware of specific features or advantages of this library. I generally prefer to avoid pulling in new dependencies unless there is a compelling reason.

[jkiddo]

Right - the reason that I mentioned it was that what you guys were doing seemed similar - and since both projects are open source I just wondered if a joint effort would be a way forward.

Disclaimer: I'm not the author of ph-schematron, but I'm using it and have reported bugs and corrections to it.

[braeckel]

That is worth considering, I don't have time to look into this at the moment but I will leave this issue open for the next phase of work on the Schematron side of the library.

[borisburger]

The project description says ph-schematron provides an alternative implementation of validation that does not rely on XSLT. That leads to better performance - which sounds interesting - but there are some limitations in this non-XSLT approach (they do not give specifics about the actual limitations).

[jkiddo]

From their project site (http://phax.github.io/ph-schematron/)

"The most common way is to convert the source Schematron file to an XSLT script and apply this XSLT on the XML document to be validated. Alternatively ph-schematron offers a native implementation for the Schematron XPath binding which offers superior performance over the XSLT approach but has some other minor limitations."