Re: utf-8 characters problem

[Bob Foster]

As others have suggested, the problem is in JEditPane. You need to tell 
it to use a font that can display all of your characters. Unfortunately, 
that's platform-specific and I'm not much of a JEditPane user 
(Eclipse/SWT for me), but somebody can probably help you if you say what 
platform you're running on.

Bob Foster
Kahovec, Jakub wrote:
It produdes Xerces 2.6.2 (LSParser, LSSerializer and XMLSerializer). 
I've been using xerces parser and serializer in my java authoring 
tool to load and save documents. I've found out the problem with 
encoding when I loaded and displayed the xml document (with char. ref. form chars)
in the jeditpanel component. Instead of + and ⁢ I saw '+' and 'square-liked
character. I tried to serialized xml document to console as well as to file, load document via
InputStream or Reader input with LSInput but I never got results where would be chars sequence 
in origin form. 
Only when I explicitly set encoding in LSInput to (ISO-8859-1)and loaded it via InputStream 
then the chars sequence ⁢ kept in the same form but the sequence + was changed to '+' character anyway.
Then I tried to debug structure of DOM document (in Eclipse 3.1) but saw the same results (+ char 
and square char, probably it's only problem of showing utf-8 chars in eclipse.)
So to be honest I don't know now, how to find out, where is the problem, whether is it
during parsing, serializing or displaying data. I'm not so experienced in encodings as well as in charsets but as far as I know java treat internaly with chars in UTF-16 charset, could be it the a part of the problem ? I don't really know.

Thanks for any ideas.
Jakub
-----Original Message-----
From: Bob Foster [mailto:[EMAIL PROTECTED]
Sent: Mon 2/28/2005 10:36 PM
To: [EMAIL PROTECTED]
Subject: Re: utf-8 characters problem
 
Exactly what Xerces or standard API is producing this result? Are you 
sure you're not looking at the result in some editor (that is using the 
wrong code page to represent your characters)?

XML parsers deliver characters in Unicode. You are apparently trying to 
use the characters as though each character had eight bits.

Tell us a little more about what steps you took to see what you describe 
and maybe someone will be able to help.

Bob Foster
Jakub Kahovec wrote:
Hi,
when I parse the xml document (with xerces 2.6.2) which has in xml 
declaration specified utf-8 encoding and which contains utf-8 characters 
in character reference form &#xxxx;
the parser replaces these characters  with ascii characters. For some 
characters is ok but for instance InvisibleTimes change for some 
incorrect strange character sentese.
I'd like to know if is possible to prohibit changing characters from 
char. ref. form ? Or does it exist some recommendation how to treat with 
these characters.

Here is a piece of my 'problematic' xml document
<?xml version="1.0" encoding="UTF-8"?>
<mathDoc>
<p>Factorise the following quadratic expression:
      <math>
        <mrow>
          <msup>
            <mrow>
          <mi>x</mi>
            </mrow>
            <mrow>
          <mn>2</mn>
            </mrow>
          </msup>
          <mo>&#x002b;</mo> <!-- replaces with character + -->
          <mi>p</mi>
          <mo>&#x2062;</mo>   <!-- here is InvisibleTimes -->
                  <mi>x</mi>
          <mo>&#x002b;</mo>  <!-- replaces with character + -->
          <mi>q</mi>
        </mrow>
      </math>
</mathDoc>
Thanks so much
Jakub


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