Re: Parsing without resolving entities
It depends a bit on what you are going to do with the document, and in particular whether you are using an XML API that can support undefined entity references. if you are (DOM for example) all you need is to arrange that the DTD that defines the entities is not read. If you are not (and most XSLT processing for example requires the entities expanded as the xpath data model does not support undefined entities) then you need to remove them somehow, perhaps in a form that lets them be replaced. As you suggest, preprocessing to hide the ampersand works (especially for more complicated entities that you could not re-constitute just from the character data). Or you can modify the dtd so that — expaands to &mdash; and then you don't need to change the document on input (but do still need to post process the result to get rid of the extra quoting. or (perhaps) you can let all the entities expand but then finally serialise the data using entities rather than characters where possible (for example XSLT will do this if writing html, or XSLT2 you can specify a character map (eg http://www.w3.org/2003/entities/iso9573-2003/iso9573-2003map.xsl) that will do the same thing. Note that this doesn't preserve the original entities, juist uses entities wherever possible, whether or not the input used that form. 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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