XML formality (was: What is PI data exactly?)

Michael Kay M.H.Kay at eng.icl.co.uk
Fri Oct 16 20:00:14 BST 1998

>>I think the problems are particularly acute
>>when the spec tries to talk about the actions of "XML processors" or
>>"applications" because these notions are very fuzzy.
>That is not true at all.  The processor and the application are cleanly

The definition of conforming validating and non-validating processors in
section 5 is reasonably OK, subject to "a reasonable man's" interpretations
of certain words, especially the verbs "to report" (is an XML processor
allowed to allow the application to suppress the error reports?) and "to
process" (is the XML processor required to reveal the results of its
processing or can it throw it all away, or mangle it in some way after
processing?). A formal spec of an API such as SAX or DOM would be much

By contrast the defining occurrences of the terms processor and application
in section 1 (to which hyperlinks point) are hopeless, since they don't
define the boundary between the XML processor and the application: they
don't tell me, for example, whether my SAXON library is part of the XML
processor or part of the application.

Mike Kay

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