Appending to an XML document
david at megginson.com
Fri Dec 10 19:20:32 GMT 1999
"Clark C. Evans" <clark.evans at manhattanproject.com> writes:
> On Fri, 10 Dec 1999, Don Park wrote:
> > IMHO, this is a parser implementation problem. I do not know of a
> > single XML parser that expects more than one XML document in a
> > file or a stream input.
> I tend to agree here. If a DOM parser encounters more than one root
> element, it could easily create a root element, say by grabbing the
> name of the file. If a SAX parser encounters more than one root
> element, it should just proceed by ending the first 'root' element,
> and then starting the next one.
No, these would both be non-conformant -- the XML spec defines a
document as the main production, and a parser that encounters a second
root element in what is being given to it as a document simply has to
stop processing, except for error reporting.
You have to distinguish the document boundaries in a single stream
before you pass it on to the parser. For example, you could use ^L as
the document separator, and start a new parse each time you see it.
All the best,
David Megginson david at megginson.com
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