Subject: Re: [xsl] CDATA Handling From: Evan Lenz <evan@xxxxxxxxxxxx> Date: Tue, 06 Jan 2009 16:01:57 -0800 |
It's six of one and a half dozen of the other, really, but if you're switching to processing-instructions, why not use something like:
<x>See following image: <?image base64="R0lGODlhDQANAMQ0IAOw==" ?></x>
That way, the image data wrapper remains an easily-searched-for text pattern, as well as a single atomic unit in the XML infoset.
~ Scott
-----Original Message-----
From: Evan Lenz [mailto:evan@xxxxxxxxxxxx] Sent: Tuesday, January 06, 2009 3:47 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [xsl] CDATA Handling
That's much better. Wish I'd thought of it.
"A bit nervous" and "not too bad" feels much better than "yuck, this is a horrible hack". So, short of changing the DTD...what Michael said. :-)
JSR, it would look something like this (using <xsl:processing-instruction/> to generate the PIs):
<x>See following image: <?start-image?>abcde<?end-image?></x>
Evan
Michael Kay wrote:
I'll probably regret this suggestion. No one has mentioned an alternative possibility (still bad architecturally, just not quite as bad as using CDATA delimiters): use non-XML "markup" (text) to delimit the images.Why use non-XML markup? Processing instructions do the same job better.
<x>See following image: TARTIMAGE##abcde##ENDIMAGE##</x>
I always feel a bit nervous about using processing instructions when I want to add some markup without changing the DTD. But it's a practical technique that works (much better than CDATA sections). I don't feel too bad about it if the PI really is being used as an "instruction" (to a stylesheet) to do some "processing". And there are cases where (for better or for worse) getting the DTD changed really isn't an option.
Michael Kay http://www.saxonica.com/
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