[xml] parsing iso-8859-7 documents

[Themistoklis Bourdenas <burdenas csd uoc gr>]

I am using libxml2 v2.6.23 on Windows platform. Trying to parse a 
document with iso-8859-7 (Greek) encoding I got gibberish text on my 
application. If I have understood correctly libxml2 maintains everything 
in utf8 internally, so when I read my document in iso-8859-7 encoding, 
it is translated to utf8 when by xmlReadMemory() function that creates a 
doc in that format. Thus when trying to retrieve my text I get 
unreadable characters.

How can I translate from iso-8859-7 to utf8 and backwards so that I can 
give to libxml2 utf8 buffers and translate them back when retrieving 
them. I look at the encoding.h and found xmlFindCharEncodingHandler() 
that it should return me an xmlCharEncodingHandlerPtr with two function 
pointer for encoding/decoding to/from utf8 but the handler it returned 
for iso-8859-7 contained two null function pointers. What are the fields 
in of iconv_t type and how can I use them to get a proper translation?

Thank you.