Subject: Re: [xsl] Selecting First Direct Sibling From: David Carlisle <davidc@xxxxxxxxx> Date: Wed, 22 Aug 2007 18:06:23 +0100 |
> I take it that "DTD-specified element content" relies on a DOCTYPE > declaration possibly implictly added by a catalog of some sort. The XSLT engine of course doesn't know nuffin about what markup was there, it just (typically) gets a sax stream of events which (may) tag white space as being insiginficant which may have come from a dtd specifiying element content, but it may have come from some tag soup html parser just knowing about certain elements and "faking" a sax stream.with teh appropriate properties set. > And that this would apply to all > XML-parsed input, not just the main source document. Yes it comes from the XDM specification so underpins all of the XSLT/XPath/Xquery processing. http://www.w3.org/TR/xpath-datamodel/#auto-const-infoset-text The wording doesn't actualy mention dtd at all, just infoset properties: If the resulting Text Node consists entirely of whitespace and the [element content whitespace] property of the character information items used to construct this node are true, the content of the Text Node is the zero-length string. note that initially a text node with a zero length string is constructed, then later in the tree building process, any such nodes are discarded while (not) being added to a parent node. So the quoted text somewhat indirectly has the effect of causing white space text nodes to be stripped in declared element content. David ________________________________________________________________________ The Numerical Algorithms Group Ltd is a company registered in England and Wales with company number 1249803. The registered office is: Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom. This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. ________________________________________________________________________
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