RE: [xtm-wg] Syntax is a bitch :-(

["Wrightson, Ann" <Ann.Wrightson@sweetandmaxwell.co.uk>]

I agree - but it needs to be as simple as possible; I suggest that we aim to
enable any processor to establish local uniqueness amongst the resources and
maps it "sees", rather than trying to be universally-unique from a "god-s
eye view".

Ann W.

> -----Original Message-----
> From: West, Matthew MR SSI-GREA-UK 
> [mailto:matthew.r.west@is.shell.com]
> Sent: 09 October 2000 09:04
> To: xtm-wg@egroups.com
> Subject: RE: [xtm-wg] Syntax is a bitch :-(
> 
> 
> Dear Colleagues,
> 
> The difficulties in reconcilling ID's from different sources 
> is pointing to
> a need for namespaces, so that IDs generated in different managed
> environments do nothave to be unique by magic.
> 
> Regards  
>       Matthew
> ============================================
> Matthew West
> Operations & Asset Management
> Shell Services International
> H3229, Shell Centre, London, SE1 7NA, UK.
> Tel: +44 207 934 4490 Fax: 7929 
> Mobile: +44 7796 336538
> E-mail: Matthew.R.West@is.shell.com
> http://www.shellservices.com/
> ============================================
> 
> > -----Original Message-----
> > From: G. Ken Holman [mailto:gkholman@cranesoftwrights.com]
> > Sent: 09 October 2000 09:11
> > To: xtm-wg@egroups.com
> > Subject: RE: [xtm-wg] Syntax is a bitch :-(
> > 
> > 
> > At 00/10/09 06:25 +0100, Dave Pawson wrote:
> > >I could autogenerate, but the id's produced for
> > >any update could overlap as new items are introduced
> > >in XSLT. With the two products I'm using, its highly likely.
> > 
> > I'm using XSLT to merge two XTM instances and to avoid the 
> > problem you 
> > noted above I find I have to prefix every ID/IDREF attribute 
> > input to the 
> > merge with something to make them unique in their respective 
> > contexts.  I 
> > then run them through a second step that replaces the 
> > ID/IDREF values with 
> > the generate-id() of each ID'ed element in order to throw 
> > away the archaic 
> > prefix.
> > 
> > The prefix I'm using is the generate-id values of the 
> > occurrence elements 
> > (from the topic map that controls the merge) that refer to 
> > each of the 
> > filenames, thus guaranteeing uniqueness.
> > 
> > Awkward and messy, but in the experimentation I've done I've 
> > come to the 
> > conclusion that I cannot rely on humane values of ID-typed 
> > attributes ... 
> > they may be authored in the original instances, but I cannot 
> > rely on them 
> > staying around because they could conflict.
> > 
> > I'll be pre-publishing on my web site next month the results of my 
> > "Experiments using XSLT with Topic Maps" paper for the 
> > XML-2000 conference 
> > ... I'll try to remember to make note of that on this list 
> if you are 
> > interested.
> > 
> > I hope this helps.
> > 
> > ..................... Ken
> > 
> > --
> > G. Ken Holman                    
> mailto:gkholman@CraneSoftwrights.com
> > Crane Softwrights Ltd.             
> http://www.CraneSoftwrights.com/x/
> > Box 266, Kars, Ontario CANADA K0A-2E0   +1(613)489-0999   
> (Fax:-0995)
> > Web site: XSL/XML/DSSSL/SGML services, training, libraries, 
> products.
> > Book: Practical Transformation Using XSLT and XPath 
> ISBN1-894049-05-5
> > Article:          What is XSLT? 
> http://www.xml.com/pub/2000/08/holman
> > Next public instructor-led training:     
> 2000-10-03/05,2000-10-09/10,
> > -        
> 2000-10-19,2000-11-06/07,2000-11-12,2000-12-03/04,2001-01-27
> > 
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