Re: [Tclxml-users] tcldompro.c

[Joe E. <jen...@fl...>]

Lee Teague <lee...@pl...> wrote:

> I've got [dom::c] compiled as an AOLServer module,
> and it seemed to be working fine (we had a little trouble getting it to compile
> with namespaces, but we figured it out.  I'll send you a patch if you want)

Do you mean Tcl namespaces, XML namespaces, or C++ namespaces?
Or something else?  At any rate, yes, please send a patch and I'll
get it integrated.  What problems did you run into?


> I do have a question:  Does dom::DOMImplementation behave differently with the C
> version?

Probably.  Any differences in documented functionality should be considered
a bug though.  (There are many differences in implementation details - like
the representation of nodes - but those are inconsequential).


> Here's what I'm trying to do:
> with the tcl version:
> %set doc [dom::DOMImplementation create]
> ::dom::document1(node1)
>
> the C version:
> %set doc [dom::DOMImplementation create]
> node9
>
> with the tcl version, I can then take $doc and run "dom::DOMImplementation
> serialize" on it to create the xml.  But, with the C version, it says, "document
> has no document element"

That's odd; the Tcl version gives me the same error as the C version
("document has no document element").  What version of dom::tcl do you
have installed?

You need to create a root element node before serializing the
document; things should work properly then.

I think that raising an error is the correct behaviour in this case. 
The documentation for [dom::DOMImplementation serialize] 
says that "the text is guaranteed to be a well-formed XML document",
and there's no way to meet that guarantee unless there's exactly one 
document element.


> Also, with the TCL version, doing a "namespace eval ::dom { info vars }" gives
> me "document1" (the array in the above case) and "document1var1", etc.  The C
> version does not.

That's one of the inconsequential implementation details mentioned above :-)
The C version stores the tree in an internal data structure,
where the Tcl version uses Tcl variables in the ::dom namespace.


--Joe English

  jen...@fl...