wddx class mapping and pretty print

On one of those - xml is too difficult stints, I started thinking about
using wddx as a generic storage system - perhaps thinking about things
like MDB's data structure and the ability to load data..

I'm still thinking that it would be nice for wddx_deserialize to accept
a stream - hence allowing the processing of huge xml files with minimal
memory penalty..

This patch does 2 things.

a) a deserialize class mapping - so you can map stored classes into
different instantation classes. (usefull when you dont have the original

• or just want to map it to something else. - eg use the data with an
  extended class.

class tests_wddxtest {
var $somearray = array(1,2,3);
var $someassoc = array('dog'=>'cat','mouse'=>'cat');
var $child;
function test() {
foreach($this->somearray as $i) {
$this->child[] = new tests_wddxtest;
}
}
}

$x = new tests_wddxtest;
$x->test();

class silly {
function __wakeup() {
// echo "Construct silly";
print_r($this);
$this = null;
}
}
$xx = wddx_serialize_value($x, "Testing X");
wddx_map_class(array('gtk_classviewer_tests_wddxtest'=> 'silly'));
$yy = wddx_deserialize($xx);
var_dump($yy);

in this example the wakup call can be used to commit to a database and
free the memory :) - useful...

b) pretty printing of the xml so that it could be hand edited if need..

• or just semi-human readable..

wddx_set_indent(2);
$xx = wddx_serialize_value($x, "Testing X");
echo $xx;

Comments Anyone..???

Regards
Alan

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