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RE: [XQuery] questions about xquery/xpath core grammar

From: Paul Cotton <pcotton@microsoft.com>
Date: Mon, 23 Feb 2004 14:33:41 -0800
Message-ID: <33D970235519324D988AFFDE7EA2E24C01315F8C@RED-MSG-41.redmond.corp.microsoft.com>
To: "liaowei" <liaowei@emails.bjpu.edu.cn>
Cc: <public-qt-comments@w3.org>

Thank you for your comments on the Formal Semantics Nov 2003 Working
Draft.

Soon after you posted your comment we made a Last Call Working Draft
available for the Formal Semantics document [1].  

If possible could you please check this draft and file your
questions/comments as Last Call comments by re-sending those comments
that still apply to the Last Call WD.

Thank you.

/paulc

PS: In the future please use "[FS]" at the beginning of the subject
field to indicate your comments are on the "Formal Sematics" document.

[1] http://www.w3.org/TR/2004/WD-xquery-semantics-20040220/ 

Paul Cotton, Microsoft Canada 
17 Eleanor Drive, Nepean, Ontario K2E 6A3 
Tel: (613) 225-5445 Fax: (425) 936-7329 
mailto:pcotton@microsoft.com

  

> -----Original Message-----
> From: public-qt-comments-request@w3.org [mailto:public-qt-comments-
> request@w3.org] On Behalf Of liaowei
> Sent: February 20, 2004 12:19 AM
> To: public-qt-comments@w3.org
> Subject: [XQuery] questions about xquery/xpath core grammar
> 
> 
> Dear XQuery Formal semantic editor:
> 	I have some question about  XQuery/Xpath core grammar in "XQuery
1.0
> and XPath 2.0 Formal Semantics" (2003-11-12).
> 
> 	1)Some Non-Terminal only occur in the left side of core grammar
> production,but no Non-Terminal can yield it.
> 	  For example:
>       	PrimaryExpr
> 	  	OrderByClause
>       	QuantifiedExpr
>       could you explain it in detail?
> 
>     2)In Formal semantic,OrderByClause can be normalized to nested let
and
> for expressions,but why it still
>        remain in the core grammar?
> 
>     3) In XQuery standard grammar:
> 		ExprSingle    ::=     FLWORExpr
> 							| QuantifiedExpr
> 							| TypeswitchExpr
> 							| IfExpr
> 							| OrExpr
>         In XQuery Core grammar:
>          ExprSingle    ::=    FLWORExpr
> 							| TypeswitchExpr
> 							| IfExpr
> 							| OrExpr
> 		QuantifiedExpr has been removed ,why?
> 
> 
> 
> 
> 		best regards
> 						liao wei
> 
> 
Received on Monday, 23 February 2004 17:33:41 UTC

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