XOM API for Processing XML with Java

[Elliotte Rusty Harold <elharo AT ibiblio.org>]

On Wed, Sep 29, 2010 at 2:15 PM, Dmitry Katsubo <dma_k AT mail.ru> wrote:
> Dear Elliotte,

>> Your code uses a StringWriter. Problems arise with something like this:
>>
>> Writer out = new OutputStreamWriter(new ByteArrayOutputStream(), 
>> "ISO-8859-1");
>
> This case worked fine for me. If you specify the encoding for output
> stream, it works OK. Diff is attached.

The problem comes when you attempt to write a character such as the
Greek letter alpha onto this writer. That can't be represented in
8859-1 but XOM has no way of knowing that.

I suppose I could just escape all non-ASCII characters when writing to
a Writer, but that's really ugly and even that doesn't work if the tag
names contain non-ASCII.


> I think, the same characters should be escaped as for OutputStream (no
> difference). Unescaped characters should be left in UTF8.

You can't leave characters in UTF-8 if the writer doesn't write UTF-8.
With an output stream, XOM knows which characters it must escape and
which ones it doesn't have to escape. With a writer XOM doesn't know
that.

-- 
Elliotte Rusty Harold
elharo AT ibiblio.org