Re: asymmetry between serialzier and parser in writing XMLDecl

>in XmlSerializer writing XMLDecl (<?xml version='1.0' ...?>) is supported
>by startDocument() method however XmlPullParser will report XMLDecl as PI.
>and each rountrip will add second <?xml as it thinks it is just another PI
>(unless there is special code to detect that PI is really XMLDecl ...)
>
>if we use isWhitespace() (or isEmptyElementTag()) to signalize that PI
>is not a real PI and should be ignored but instead interpreted as 
>XML declaration ...
>

I don't see how this would fix it. The XML declaration is not a 
processing instruction. XmlPullParser should not report it as one. 
Overloading isWhiteSpace() or isEmptyElementTag() with a completely 
different meaning that has nothing to do with white space or 
empty-element tags just confuses the issue  further, and is totally 
non-obvious.

Either XmlPullParser should not report the XML declaration at all, or 
it should have a different token type to represent this construct.
-- 

+-----------------------+------------------------+-------------------+
| Elliotte Rusty Harold | [email protected] | Writer/Programmer |
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|          XML in a  Nutshell, 2nd Edition (O'Reilly, 2002)          |
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|  http://www.amazon.com/exec/obidos/ISBN%3D0596002920/cafeaulaitA/  |
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