surrogate pairs

[Chris Hill <ch...@wolfram.com>]

As far as I can tell surrogate pairs aren't correctly processed in 
attributes, PIs and comments.

I filed http://nagoya.apache.org/bugzilla/show_bug.cgi?id=2752 in July

Does anyone know if there are any fundamental problems that make this 
difficult to implement?  I would be willing to fix it unless there is more 
to the problem than I am aware of.  It seems like a simple fix to me.

I am most interested in attributes.  There are two places where attribute 
values get trapped.  In both XMLScanner::basicAttrValueScan 
and  XMLScanner::scanAttValue there is a call to XMLReader::isXMLChar which 
fails because surrogates are not xml characters.  I'm sort of confused by 
this particularly in XMLScanner::basicAttrValueScan where it is inside the 
surrogate handling code anyway.  I think all that needs to happen is to 
make this code not trigger an error for surrogate characters.

Comments and PIs need more attention because it doesn't look like there is 
any support for surrogates currently in place.

Chris Hill


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