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RE: Retrieving "markup" hidden in comments

Subject: RE: Retrieving "markup" hidden in comments
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Thu, 28 Jun 2007 16:50:56 +0100
RE:  Retrieving "markup" hidden in comments
The saxon:parse() extension function allows you to extract the content of
the comment and parse it as if it were an XML document.

Michael Kay

> -----Original Message-----
> From: AAS Contractor [mailto:AAS.Contractor@xxxxxxx] 
> Sent: 28 June 2007 16:38
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  Retrieving "markup" hidden in comments
> Hi,
> I'm using XSLT 2.0 with Saxon 8B.
> My problem is:
> I have xml files which contain Arbortext Math markup which 
> has been placed 
> in comments, e.g. 
> <!--<FORMULA><F>-21.6&amp;lt;M<INF>V</INF>&amp;lt;-14.9</F></F
> ORMULA>-->
> The reason being that the math markup is not valid according 
> to the DTD being used. I have no control over this. However, 
> I want to be able to process this "hidden" markup as if it 
> were real elements.
> I can retrieve the comment text string, but of course that's 
> all it is - a 
> string. Is there any way to coerce that into being treated as 
> an element or document-node? I can achieve the effect I want 
> by writing the content of each comment out to a file (using a 
> character map or
> disable-output-escaping) and read them in again on a second 
> pass. This works, but is rather messy, and I'd rather do it 
> in one pass.
> Is there a way to emulate the effect of document() but on the 
> content of a 
> variable rather than a file? Other than that, I guess the 
> other option is to write a parser for the math markup in 
> xslt, which I'd rather not have to do :-(
> Thanks for any suggestions.
> Regards,
> Bruce
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