Re: Pete's blend for XMLlite
On 08/12/2010 15:09, Pete Cordell wrote: > I think all of the points below are affected by this. the ones relating to allowing -- in comments are not [in danger of corrupting data] as -- (including nested comments) are currently not well formed. Making currently non well formed stuff well formed is the safest incompatible change that could be made, followed by making well formed stuff non well formed (this is probably what killed xml 1.1) and then the most dangerous: making well formed stuff parse differently. Personally if the final format specified doesn't have the property that every well formed xmmllite document is well formed xml 1.0, then I would arrange the syntax to ensure that _no_ well formed xmllite document is well formed xml 1.0, for example by mandating a declaration such as <?xmllite?> at the top. The impact on "parsers" or "applications" are really not the main concern: it's the impact on "documents" that matters. The fact that (for example) the change in xml 1.1 to disallow C1 control characters was almost certainly a trivial change in any parser implementation wasn't really the point, the problem was that it made non well formed an unknown number of existing documents, so for most people it is far safer to stick with xml 1.0 than to move to xml 1.1 and potentially have the system fail at some point in the future when an old document is accessed. 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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