[xml] get encoding from SAX parser

[Marc Ewert <ewert neofonie de>]

Hi,

I'm wondering how I can determine the encoding of an document (I don't 
mean the internal UTF-8 encoding) parsed with the SAX interface. I 
create the 'xmlParserCtxt' with 'xmlCreateIOParserCtxt(..., 
XML_CHAR_ENCODING_NONE)', register my callbacks and call 
'xmlParseDocument()'. The encoding field of the 'xmlParserCtxt' is empty 
during the execution of my callbacks and the 'processingInstruction' 
callback is never called for the '<?xml version="1.0" 
encoding="ISO-8859-1"?>' PI.

Is there a solution with libxml2, or must I parse the document 
declaration on my own?

Thank you very much for your support so far! :-)

PS.: can line 6 in Makefile.am changed to:

INCLUDES = -I$(top_builddir)/include -I srcdir@/include  @THREAD_CFLAGS@ 
@Z_CFLAGS@

this is needed for compilation outside of the original source-directory.

Ciao,
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