Re: [xsl] What is the Venn diagram for XPath, XQuery, and XQuery Update?

["Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Am 2/1/2023 um 2:04 PM schrieb Roger L Costello costello@xxxxxxxxx:
> Note: in all of the following, when I refer to "XQuery" I mean the latest
version of XQuery. Ditto for XQuery Update.
> [True or False] XQuery is a superset of XPath. That is, the XQuery language
consists of all the stuff in XPath plus more.

There are minor syntactic differences, in XPath 3.1 you can use a string
literal containing an ampersand e.g.

B  'This is an <em>important</em> & often overlooked difference.'

is a syntactically correct XPath expression.

However, in XQuery, it would raise an error "No closing ';' found for
entity or character reference" so you would need e.g.

'This is an <em>important</em> &amp; often overlooked difference.'



> Eek! I didn't specify the version of XPath.
>
> [True or False] XQuery is a superset of XPath 1.0
> [True or False] XQuery is a superset of XPath 2.0
> [True or False] XQuery is a superset of XPath 3.0
> [True or False] XQuery is a superset of XPath 3.1
>
> [True or False] XQuery Update is a superset of XQuery.
>
> /Roger