On 2002-03-29 Jenda Krynicky wrote:
> I'm using XML files to replicate some settings and other stuff 
> between several servers (thanks for your previous help!). Everything 
> is cool except one thing.
> 
> I use character with code 2 as a separator or marker on several 
> places in the database. Things like
> 	IF substring(PostingParameters.UserName,1,1) = char(2) 
> 		-- then it's an ID of a field and I will use value of that field
> 		-- to log in
> 	ELSE
> 		-- its a constant
> 
> or
> 	(from ASP) ... conn.SetPostingParameters(..., _
> 		CSVSeparator & chr(2) & CSVQuote _
> 		& chr(2) & CSVEscape, ...
> 
> the problem is that if I write a string containing a chr(2) into an XML 
> file, XMP::Parser (used via XML::Simple) will refuse to parse the file 
> with 
> 
> 	not well-formed at line ...
> 
> error message. So I've replaced the char(2)s with  in the 
> generated XML. Still no success, it gives
> 
> 	reference to invalid character number at line ...
> 
> error message.
> 

XML doesn't allow such a character value, see the XML character definition
http://www.w3.org/TR/2000/REC-xml-20001006#charsets


> Is there any way to "properly" escape such a character so that it 
> would be accepted by XML::Parser?

No. It's invalid even if you try to specify it as a character entity

> And if not what character would you recomend to be used 
> (escaped if necessary) to make XML::Parser happy, but still being 
> reasonably safe that it will not be mistaken for "normal" data.
That depends on what your application defines as 'normal data'.
Not sure that I fully understand what you want to do so I can't really suggest
anything.

Regards,
Duncan Cameron





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