Re: [xsl] Grouping in match patterns

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

Am 14.07.2020 um 17:33 schrieb Wendell Piez wapiez@xxxxxxxxxxxxxxx:
> XSL-List friends,
>
> Is there anything special I should know about a match pattern such as
> "a / (b|c)" -- which gives me an error (in oXygen and running Saxon)?
>
> <xsl:template match="a / (b | c)"/>
>
> Wouldn't it be permitted by the grammar given at
> https://www.w3.org/TR/xslt-30/#pattern-syntax? Production [11] would
> seem to permit a parenthetical expression as a discrete step. Is there
> something I am missing here?

It seems the spec indeed allows this.

Furthermore, Saxon-JS 2 doesn't complain:
https://martin-honnen.github.io/xslt3fiddle/?xslt=%3C%3Fxml+version%3D%221.0%
22+encoding%3D%22utf-8%22%3F%3E%0D%0A%3Cxsl%3Astylesheet+xmlns%3Axsl%3D%22htt
p%3A%2F%2Fwww.w3.org%2F1999%2FXSL%2FTransform%22%0D%0A++version%3D%223.0%22%0
D%0A++xmlns%3Axs%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%22%0D%0A++ex
clude-result-prefixes%3D%22%23all%22%0D%0A++expand-text%3D%22yes%22%3E%0D%0A%
0D%0A++%3Cxsl%3Amode+on-no-match%3D%22shallow-copy%22%2F%3E%0D%0A++%0D%0A++%0
D%0A++%3Cxsl%3Atemplate+match%3D%22a+%2F+%28b+%7C+c%29%22%2F%3E%0D%0A%0D%0A%0
D%0A++%3Cxsl%3Atemplate+match%3D%22%2F%22+name%3D%22xsl%3Ainitial-template%22
%3E%0D%0A++++%3Cxsl%3Anext-match%2F%3E%0D%0A++++%3Cxsl%3Acomment%3ERun+with+%
7Bsystem-property%28%27xsl%3Aproduct-name%27%29%7D+%7Bsystem-property%28%27xs
l%3Aproduct-version%27%29%7D%3C%2Fxsl%3Acomment%3E%0D%0A++%3C%2Fxsl%3Atemplat
e%3E%0D%0A++%0D%0A%3C%2Fxsl%3Astylesheet%3E%0D%0A&input=%3Croot%3E%0D%0A++%3C
a%2F%3E%0D%0A++%3Ca%3E%3Ce%2F%3E%3C%2Fa%3E%0D%0A++%3Ca%3E%3Cb%2F%3E%3C%2Fa%3E
%0D%0A++%3Ca%3E%3Cc%2F%3E%3C%2Fa%3E%0D%0A%3C%2Froot%3E%0D%0A&input-type=XML

Will need to check whether I still have that other XSLT 3 processor
Exselt and what it says.