[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: xslt 3.0, and use of 'as' attribute with xsl:varia

Subject: Re: xslt 3.0, and use of 'as' attribute with xsl:variable
From: "Graydon graydon@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 2 Sep 2023 03:38:07 -0000
Re:  xslt 3.0
On Fri, Sep 01, 2023 at 05:07:19PM -0000, Liam R. E. Quin
liam@xxxxxxxxxxxxxxxx scripsit:
> On Fri, 2023-09-01 at 08:14 +0000, Mukul Gandhi
> mukulg@xxxxxxxxxxxxxxxxx wrote:
>> As I've mentioned within another mail on this thread, I think XPath
>> 3.1 function conversion rules prohibiting a string value '4' to be
>> cast to an xs:integer type is not very much right.
> Actually it's *exactly* what i want. 

I might phrase this as not expecting the processor to read my mind; I
know it can't do that reliably, and the cases where it fails are likely
to be more important than those where it succeeds.

Phrasing aside, I want strong typing too.

> If i provide a string where a number is expected yes please give me an
> error. The point of using as= is not only optimization and
> performance, but also detecting mistakes at compile time, so i don't
> get a surprise three years from now in production when a rarely-used
> codepath is exercised.

It took me some time to get used to having to explicitly cast everything
in XQuery, but telling the processor the expected type and number really
has made it easier to get the expected result in XSLT.

Graydon Saunders  | graydonish@xxxxxxxxxxxx
^fs oferiode, pisses swa mfg.
-- Deor  ("That passed, so may this.")

Current Thread


Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
First Name
Last Name
Subscribe in XML format
RSS 2.0
Atom 0.3
Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.