Re: Novice question: selecting an element based on an

On Thursday 21 March 2002 00:46, Michael Kay wrote:
> > Anyway, the transformation is:
> >   1.  Look for elements in the source with the attribute
> > "field" and use that as an element in the target. Hence, you see that
> >
> > <String field="_str1" myId="28"><![CDATA[a test of
> > referencing.]]></String>
> >
> > becomes
> >
> > <_str1><![CDATA[a test of string referencing.]]></_str1>
>
> So what are the criteria that turn the value "a test of referencing" into
> "a test of string referencing"? I still don't understand.
>
> Michael Kay

<_str1> is a tag with a value and id "28".  <_str3> is a tag that references 
the value of the tag with id "28" via refid="28".

So since the value of <String field="_str1"> was "<![CDATA[a test of string 
referencing.]]>" (ignoring the fact that the CDATA won't be copied), <_str3> 
also gets a copy of this value because it references _str1.

I believe his input document is output from the JSX project -- Java 
Serialization to XML (but I could be wrong).  As you probably know, in 
serialization each object is only written once, and future references to the 
same object use a reference id, to prevent both wasted space and infinitely 
recursive graphs.  So that would be where he's getting the refid="28" and why 
he want's a copy of the value (since they started out as the same 
object/value).

-- 
Peter Davis
By rule #1, 5.005 should always allow localization of lexical @_ . . .
             -- Larry Wall in <199710011704.KAA21395@xxxxxxxx>

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