XOM API for Processing XML with Java

[Elliotte Harold <elharo AT metalab.unc.edu>]

dvholten AT computer.org wrote:

> ok, i see - good point .
>
> sure, xml supports characters wider than 2 bytes - but does java ??
> having a valid xml-document doesnt mean, that anybody can actually process 
> it.
>
> after parsing the document, the attribute 'character="񐀀" ' is just
> a java-string, limited to 2byte characters - i think.

No. Java strings can use surrogate pairs to access characters like this. 
A Java char is not a Unicode character. Rather it is a UTF-16 code point.

> would be interesting to see, if *any* xsl-processor can make sense of 
> that.
> and it's sure, that there *really is* a character at x50000 ? - unicode 
> has gaps.

Good question. You know what? I don't think 0x50000 is a Unicode 
character, and I don't mean it's not just a defined Unicode character. I 
mean it's not a Unicode character at all.

0x50000 is 5,242,880 in decimal. However Unicode is not a 32-bit code 
set. It's actually a 20 bit code set, and the maximum value is a little 
over one million so 0x50000 is out of range. Off the top of my head, I'm 
not sure what XOM and XML should do here. I'll have to explore this 
further.

--
Elliotte Rusty Harold  elharo AT metalab.unc.edu
XML in a Nutshell 3rd Edition Just Published!
http://www.cafeconleche.org/books/xian3/
http://www.amazon.com/exec/obidos/ISBN=0596007647/cafeaulaitA/ref=nosim