Subject: RE: [xsl] XSLT 2.0 and implementation of fn:idref in Saxon 7.9 From: David.Pawson@xxxxxxxxxxx Date: Mon, 15 Mar 2004 10:50:21 -0000 |
Rather too subtle for me. This appears to me to be a move away from 'simple' DTD based XML, to an xsd model of ID+IDREF? What about operating on a DTD based valid instance which has idrefs and id's correctly defined in the DTD? Ignored I guess? Another trip wire for the unwary? regards DaveP # Did I misunterstand the meaning of the fn:idref (Finds the elements that # link to the element with a given ID value i.e. This function allows # reverse navigation from IDs to IDREFs.) ? Yes, you misunderstood it. The spec says: A node references an ID value if it is an element or attribute node whose type is xs:IDREF or xs:IDREFS. So if you have an attribute of type xs:IDREFS, then the idref() function will return that attribute, not the element containing it. The reason for this is that you can have several IDREF attributes on an element, e.g. <person id="id005" father="id001" mother="id002"/> You want to know not only that person id005 has a reference to id001, but which attribute contains this reference. You can always get the element node if you want, just use idref($x)/.. Michael Kay XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list - DISCLAIMER: NOTICE: The information contained in this email and any attachments is confidential and may be privileged. If you are not the intended recipient you should not use, disclose, distribute or copy any of the content of it or of any attachment; you are requested to notify the sender immediately of your receipt of the email and then to delete it and any attachments from your system. RNIB endeavours to ensure that emails and any attachments generated by its staff are free from viruses or other contaminants. However, it cannot accept any responsibility for any such which are transmitted. We therefore recommend you scan all attachments. Please note that the statements and views expressed in this email and any attachments are those of the author and do not necessarily represent those of RNIB. RNIB Registered Charity Number: 226227 Website: http://www.rnib.org.uk XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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