Official XSLT validator?

Question

Is there any official XSLT validator, like http://validator.w3.org/ for HTML & XHTML?

I know http://validator.w3.org/ can also be used to validate XML and XSL docume

Answer 1

In the general case you can't take an arbitrary XSLT stylesheet and prove statically that it will generate valid XHTML. You can however detect quite a few cases where it won't, provided that the stylesheet is written to take advantage of schema-awareness. For this you need a schema-aware XSLT processor that does static checking (for example Saxon-EE), and you need the stylesheet to (a) import the schema using xslt:import-schema, and (b) to invoke validation on the result elements using [xsl:]validation="strict". This will detect some validity errors in your stylesheet output statically (while compiling the stylesheet), and the remainder dynamically (while running it).