RE: whitespace in 1.1
> the characters passed to an application by the XML processor > must be as if the XML processor normalized all line breaks > in external parsed entities (including the document entity) > on input, before parsing In my experience, the words "as if" are often a signal that something is badly wrong in a spec. Either the processor should normalize line breaks, in which case it must be made very clear at which stage of processing it does so, or it shouldn't normalize them. Saying that it behaves for some purposes as it it normalized them and for other purposes as if it didn't is a sure path to ambiguity, and a sure signal that the processing model has not been adequately defined. There are examples of this in XSLT 1.0: "the stylesheet is treated as if neither processing instruction nodes nor comment nodes were included in the tree that represents the stylesheet" - but is this the tree before or after whitespace stripping? "document('') refers to the root node of the stylesheet; the tree representation of the stylesheet is exactly the same as if the XML document containing the stylesheet was the initial source document" - does this "as if" override the previous "as if"? In all these cases the problems would be avoided by describing a processing model in which the stages of processing (of an object such as a stylesheet) are explicitly described, and constraints are defined on the object at a specific stage of processing. Michael Kay Software AG home: Michael.H.Kay@n... work: Michael.Kay@s...
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