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- From: Peter Murray-Rust <firstname.lastname@example.org>
- To: email@example.com
- Date: Sun, 14 Dec 1997 23:41:49
At 17:00 14/12/97 -0500, Simeon Simeonov wrote:
Thanks very much Simeon,
>I come to this discussion late (4:30pm EST on Sunday :) so my set of
>assorted notes is addressed at no one in particular.
>I like the acronym SAX. It's short and sweet.
So do I.
>A note of caution. I hope that in your mind SAX is not the same as SAX-J.
>Some of the API proposals I have seen have a very strong Java flavor. For
I agree with your point - personally I have no idea how to write a language
independent API, but for this one I suspect it's fairly straightforward
because of the relative simplicity.
>example, I see the need for an API that does not require runtime type
>information. The equivalent of instanceof in C++ is the dynamic_cast<T>()
>operator. It requires the enabling of RTTI which imposes an immediate and
>quite noticeable size and performance penalty. IMHO, runtime type
>information is necessary only when the object model of a system is
>undergoing continuous change. I don't see this being the case with SAX.
This seems to make sense. I think the main area where this might be used is
in children, where a child could be either an Element or PCDATA, and you
found out which by asking it. I assume it can be managed with strong typing
>I cannot invest the time in writing an XML parser in C++ right now, but I'd
>be more than happy to contribute to this discussion to make sure that SAX is
>a C++-friendly API.
I think that's a very useful offer :-)
I have been thinking as we go how we manage other languages like tcl and
Perl (I know tcl, but not Perl). I assume some parts of the interface can
almost be translated algorithmically, but others may be tricky. [Even I am
not going to ask for a FORTRAN interface :-)]
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