Re: ZIP-based packages and URI references into them ODF proposal

Ian Hickson wrote:

> Similarly, if we were to extend XML's xml:preserve attribute to have a 
> third value, we couldn't do so without checking how all the different XML 
> processors would handle the new value, because XML doesn't define how to 
> handle unknown values. Indeed it also doesn't define in useful detail how 
> UAs are to handle the two values it _does_ introduce, and the result has 
> been that everyone has come up with different meanings for those attribute 
> values, and some of the interpretations can conflict (e.g. SVG's 
> requirements for processing xml:space differ from the requirements of some 
> proprietary languages, and thus the two can't be combined).

I assume you meant xml:space. In any case, XML doesn't define anything 
about how a UA is to handle XML. That's not an accident. XML is used way 
beyond the realm of things that can be recognized as user agents.

Elliotte Rusty Harold
Refactoring HTML Just Published!

Received on Tuesday, 30 December 2008 16:46:35 UTC