Re: [xsl] self axis vs .

Subject: Re: [xsl] self axis vs .
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Fri, 06 Jun 2008 11:58:22 -0400

At 08:59 AM 6/6/2008, Andrew wrote:
An interesting practice I've come across at a client's site is instead
of using . they use self:: instead...

So instead of:

<xsl:apply-templates select="." mode="other"/>

you have

<xsl:apply-templates select="self::elem" mode="other"/>

and instead of:


you have:


While it seemed a little odd to start with, their argument of it helps
locate where you are (especially when . is far away from the match
pattern that's normally used to discover the current node) is
beginning to grow on me...

It also works to test whether the current node is actually an 'elem' when you process it or traverse from it.

Since when it isn't, it is silently filtered out, this could be regarded as either a feature or a bug. If this isn't desired as a feature, it may be a bug (or a bug waiting to happen), or perhaps at best gilding the lily.

But it might serve as a sideways incentive for maintenance programmers to learn their XPath. :-)


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