xqx:parenthesizedExpr, which is commented as having been removed in the schema: http://www.w3.org/TR/xqueryx/#Schema is used in Example 4: http://www.w3.org/TR/xqueryx/#Example4-XQueryX and is also referenced in the XQueryX to XQuery stylesheet.
Thanks for your comment. The example is clearly incorrect and will be corrected through the XQueryX Errata document that will be published some time in the (near?) future; the precise correction must be endorsed by the Working Groups and will be announced when approved. The template in the stylesheet that processes xqx:parenthesizedExpr is clearly unnecessary, but it also does no harm. Nonetheless, the Errata document mentioned above will address this problem, too.
The WG has approved the following proposed changes: * In Section 3.4.2, A Solution in XQueryX, replace the starting tag "<xqx:parenthesizedExpr>" and the ending tag "</xqx:parenthesizedExpr>" with "<xqx:sequenceExpr>" and "<xqx:sequenceExpr>", respectively. * In Appendix B, Transforming XQueryX to XQuery, delete the template identified by: match="xqx:parenthesizedExpr". These changes will appear in any XQueryX Errata document that the WG may publish and in any future editions of XQueryX 1.0 that the WG may publish. This bug is being marked FIXED and ask that you review it and mark it CLOSED if you agree that your comment is resolved. If you do not respond within two weeks from today, we will assume that you are satisfied with this solution and will mark the bug CLOSED.
Thanks.