Returns a list of environment variable names that are suitable for passing to environment-variable(), as a (possibly empty) sequence of strings.

available-environment-variables() ➔ xs:string*

There are no arguments



Links to W3C specifications

Namespace: http://www.w3.org/2005/xpath-functions

Applies to: XPath 3.0, XSLT 3.0, XQuery 3.0 (if enabled in Saxon: requires Saxon-PE or Saxon-EE)

XPath 3.0 Functions and Operators

Notes on the Saxon implementation

Implemented in Saxon 9.4, but without enforcing the rule that the result must be deterministic.