nestable C/C++ XML parser?
mikew at o3.co.uk
Wed Dec 8 09:37:41 GMT 1999
>>> On Tue, 07 Dec 1999 13:57:43 -0500,
>>> "Paul" == Paul Miller <stele at fxtech.com> wrote:
Paul> No, I did want things pushed at me (via callbacks), but I want the
Paul> opportunity to do some object-specific processing "inside" one of the
Paul> callbacks, after the next set of *nested* elements were processed. This
Paul> requires a nestable parser, where I can pick up the parsing inside a
Paul> different scope.
What about using nestable *handlers*. Say you're parsing something like
When your main handler sees the <foo> tag, create a new "FooHandler"
object. Your main handler would then need to delegate all events to the
FooHandler, until the corresponding </foo> is seen.
Not that this is particularly easy to implement. In fact, I started to
implement something similar (in Java), but got fed up ... I've reverted to
using a DOM as input, for the time being.
The main complication is that the delegating handler has to maintain a
context-stack while it's delegating, in order to match the correct
end-tag. One way around this might be to get the FooHandler to notify the
main handler when it's finished.
Just an idea ...
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