R: R: R: R: using non standard character with zerces

[AESYS S.p.A. [Enzo Arlati]]

but when I try to translate a string with a char greater than hex 7f I got
an empty string
so 
   XMLCh * xmlStr = X( "1234 \x28 & \x29 " )
give a string "1234 ( & )"
while if I add the char \x80 I got an empty styring.
what can I do to manage also the char with code between 127 and 255 ?


-----Messaggio originale-----
Da: Jesse Pelton [mailto:[EMAIL PROTECTED]
Inviato: lunedì 19 settembre 2005 15.25
A: c-dev@xerces.apache.org; [EMAIL PROTECTED]
Oggetto: RE: R: R: R: using non standard character with zerces


Sure, you can store 0xA5 in a DOM string, but you have to represent it
properly in the string that you store.  This means you have to store the
character value 0xA5 in the string; you cannot represent it in the string as
a numeric entity like "&#xA5":

   XMLCh* pszA5Good = X("\xA5");  // Yen
   XMLCh* pszA5Bad  = X("&#xA5"); // goobledygook

Both strings are perfectly legitimate, but if you put the latter into the
DOM, the serializer MUST escape the ampersand so that the string you are
adding to the DOM can be faithfully recovered.  In other words, if you say
the string is "&#xA5", the serializer must escape it so that when it's
parsed, the string's value remains "&#xA5", because that's the string you
specified.

If you put the former into the DOM, the serializer will likewise do what it
must to ensure that the specified string comes back when Xerces or some
other conforming XML processor parses the document.  Depending on the
document encoding, it may or may not be serialized as "&#xA5."  Any
conforming processor that recognizes the document encoding will parse the
serialized value correctly.

The bottom line is, don't pre-escape anything that you put into the DOM.  If
you do, the serializer must escape it again, and you won't get your desired
results.  Rather than:

  stmp = " start ' < >  & ( ¤ ¥ ) end";
  dtxt = pDoc->createTextNode( X( stmp.c_str()));

Do:

  dtxt = pDoc->createTextNode( X(" start ' < >  & \x28 \xA4; \xA5; \x29
end)");

Or equivalently:

  dtxt = pDoc->createTextNode( X(" start ' < >  & ( \xA4; \xA5; ) end)");

Note that none of this is specific to Xerces.  Any XML processor that
conforms to the specifications (available at www.w3.org) must behave this
way.

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