Subject: RE: xsl:extension-element-prefixes From: Andrew Kimball <akimball@xxxxxxxxxxxxx> Date: Mon, 22 May 2000 18:28:15 -0700 |
I totally missed that little "or extension element" even though I must have read that section 10 times. Thanks for the reply... ~Andy -----Original Message----- From: James Clark [mailto:jjc@xxxxxxxxxx] Sent: Monday, May 22, 2000 6:03 PM To: xsl-list@xxxxxxxxxxxxxxxx Subject: Re: xsl:extension-element-prefixes Andrew Kimball wrote: > > James, Mike, > > Thanks for your helpful spec interpretations thus far. I've now found > myself a new puzzler. Given the following stylesheet: > > <xsl:stylesheet xsl:version="1.0" > xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> > <xsl:template match="/"> > <foo:x xsl:extension-element-prefixes="foo" > xmlns:foo="http://my.com"/> > </xsl:template> > </xsl:stylesheet> > > 1. Should foo:x be interpreted as an extension element or as a literal > result element? An extension element. > The spec says: > "The designation of a namespace as an extension namespace is effective > within the subtree of the stylesheet rooted at the element bearing the > extension-element-prefixes or xsl:extension-element-prefixes attribute" > > If I interpret "within the subtree" as not including the subtree root, then > foo:x would be a literal result element. There are no particular technical > problems with this interpretation (however, it does seem inconvenient from a > user point of view). > > However, if "within the subtree" includes the subtree root, then foo:x must > be extension element. When the spec says "within the subtree rooted at a node x", then the root of the subtree is x, and hence the subtree includes x. > But if foo:x is an extension element, then I should > not consult the xsl:extension-element-prefixes attribute (since it's only > effective if used on literal result elements). 14.1: "A namespace is designated as an extension namespace by using ... an xsl:extension-element-prefixes attribute on a literal result element ***or extension element***" > But if I never consult the > xsl:extension-element-prefixes attribute, then foo:x cannot be an extension > element. This interpretation therefore leads to a circular definition. > 2. How about "xsl:exclude-result-prefixes"? Does this take effect > immediately on the literal result element upon which it is defined, or only > for descendants? Once again, the spec only says "within the subtree" > (section 7.1.1). As before, a subtree includes its root. James XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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