It's published (and referenced from the spec) at
https://www.w3.org/TR/2017/REC-xpath-functions-31-20170321/function-catalog.xml
Michael Kay
Saxonica
> On 26 May 2023, at 11:56, Roger L Costello <> wrote:
>
> Michael Kay wrote:
>
>> the XPath function library is defined in an XML document
>> that contains all the function signatures in a custom
>> vocabulary reflecting the object model for XPath functions,
>> and that data is extremely useful; it can be used for example
>> to create the data used by a type-checker. I'm sure there are
>> cases where an XML format can be standardised across a
>> wide range of specifications (for example, a format for
>> defining BNF grammars) but I'm sure that highly specialized
>> custom formats also have a role to play.
>
> This is really interesting. Michael, would you expand on this please? I am not entirely clear on what you are saying. What does this mean: "the XPath function library is defined in an XML document that contains all the function signatures in a custom vocabulary reflecting the object model for XPath functions." Perhaps you would be willing to provide an example to illustrate what you mean?
>
> /Roger
