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sacron is utf-8 and there is a couple other versions of it with utf-16.. there is an object type for handling this with modules if you check object.php you will find the following class intialisation types:
define('XOBJ_DTYPE_UNICODE_TXTBOX', 16);
define('XOBJ_DTYPE_UNICODE_TXTAREA', 17);
define('XOBJ_DTYPE_UNICODE_URL', 18);
define('XOBJ_DTYPE_UNICODE_EMAIL', 19);
define('XOBJ_DTYPE_UNICODE_ARRAY', 20);
define('XOBJ_DTYPE_UNICODE_OTHER', 21);
These will allow forums and any form of module to handle any form of unicode that is utf-8, utf-16, utf-32 all you have to do for example is change the handler type in the class and 2.4.0 will allow your user to free type into any field and have it displayed as is.
As URL's will soon support korean, chinese, greek, most asia pacific and eastern countries characters define
XOBJ_DTYPE_UNICODE_URL is very important for the handling of this so there is no corruption due to database character support or character sets. This will for xample store arabic characters in a latin character set MySQL database.