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- From: John Cowan <cowan@locke.ccil.org>
- To: XML Dev <xml-dev@ic.ac.uk>
- Date: Wed, 23 Sep 1998 11:26:07 -0400
Thillai wrote:
> I know only little bit about XML. I like to know whether a CORBA operation
> can be expressed in XML document type definition?
You got lots of answers to the question "How to do Corba-style stuff
by exchanging XML documents", but that isn't really what you asked.
> For example if the IDL has something like
>
> interface z
> {
> typedef sequence<String, 5> t1;
>
> void x(in int p1, in t1 p2);
> }
>
> and I want to store the parameters for the operation in a file.
>
> I like to have a XML data file like
> <interface>
> z
> <operation>
> x
> <inparameter>
> <param>
> p1
> <value>10</value>
> </param>
> <param>
> p2
> <value><nelems>5</nelems><0>abc</0><1>efg</1><2>hij</2><3>
> klm</3><4>nop</4></value>
> </param>
> </inparameter>
> </operation>
> </interface>
>
> If there is no maximum limit for the type t1 then no. of elements in the
> sequence might vary.
The tags <0>, <1> etc. are not valid XML, because an element name can't
be numeric. You could use _0, _1, etc. but really all you need is
just "<value><component>abc</component><component>efg</component> ...",
with no need to specify an explicit count (XML processors are expected
to be able to count things).
> For this file is it possible to write DTD. (I will read about DTD and find.
> Before that any expert comment will be helpful)
Yes, no problem.
> If it is possible then is it possible to write XSL for getting values from the
> user. (no. of elements in the sequence might vary at runtime).
I don't really see how. XSL is for styling XML for display.
--
John Cowan http://www.ccil.org/~cowan cowan@ccil.org
You tollerday donsk? N. You tolkatiff scowegian? Nn.
You spigotty anglease? Nnn. You phonio saxo? Nnnn.
Clear all so! 'Tis a Jute.... (Finnegans Wake 16.5)
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