Re: Comparing node for identity using union

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Subject: Re: Comparing node for identity using union
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Tue, 18 Jan 2005 13:57:04 -0500

Antonio,

At 01:46 PM 1/18/2005, you wrote:

Well, just for the record, i solve my problem, by using

<xsl:variable name="snode" select="(//Menu)[position()=$pos]"/>

instead of

<xsl:variable name="snode" select="(//Menu)[$pos]"/>

A million neurones i burn to reach this solution!!!

Not just because I guess it to be less bug-prone, but also because I think it's more intuitively obvious, I have started using

/descendant::Menu[$pos]

as an alternative to the above.

A lot of XSLT code ends up getting thrown at newcomers to maintain these days. Part of my job is to make my code as clear as I can to people starting with the language. It's a design, er, "wrinkle" that //node[$pos] doesn't return what people guess it should (expect in buggy systems), before they learn the gory details of the XPath productions -- and that includes implementers. (I know this isn't the bug you found, but it's nearby isn't it?)

Cheers,
Wendell


======================================================================
Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
Mulberry Technologies, Inc.                http://www.mulberrytech.com
17 West Jefferson Street                    Direct Phone: 301/315-9635
Suite 207                                          Phone: 301/315-9631
Rockville, MD  20850                                 Fax: 301/315-8285
----------------------------------------------------------------------
  Mulberry Technologies: A Consultancy Specializing in SGML and XML
======================================================================

Current Thread

Comparing node for identity using union
- António Mota - 13 Jan 2005 21:37:55 -0000
  - Michael Kay - 13 Jan 2005 23:38:24 -0000
    - António Mota - 14 Jan 2005 20:59:42 -0000
      - António Mota - 18 Jan 2005 18:46:29 -0000
      - Wendell Piez - 18 Jan 2005 19:03:31 -0000 <=
      - António Mota - 18 Jan 2005 21:57:28 -0000
      - Joris Gillis - 18 Jan 2005 21:59:07 -0000
      - Michael Kay - 18 Jan 2005 22:07:34 -0000
      - David Carlisle - 18 Jan 2005 23:07:25 -0000

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