[fU] qt-free s11n lib functional

[stephan b. <st...@ei...>]

i've got my stl version of the s11n lib working. It's not 100% 
API-compatible with the current libfun interface, but it's conceptually 
very similar and much of the code can probably be re-used as-is in 
libfun.

http://stephan.rootonfire.org/elib/

Sample app in lib/elib/tests/funser.cpp, though it doesn't show all of 
the functionality. i have a more extensive example which isn't in that 
tarball but i can make it available if you want it.

Notable changes from the libfun s11n model:

- Current classloader is brain-dead and can only work with statically 
registered factories.

- LoadableClass does not exist as such: all serializables must extend 
ESerializable. This is based off of the observation that we have never 
(AFAIR) had a LoadableClass which is also not Serializable. (i.e., 
everything we've loaded has been Serializable, AFAIR).

- ES11nNode (SerialTree's counterpart) is more template-based. In the 
future i would eventually like to remove the hard-coded 
ESerializable-base-class requirement and move that to a template param, 
but i'm afraid it would make using the class too clumsy.

- SerializableClass (called implClass) is now a property of 
ESerializable, and ES11nNode pulls the info from there. ESerializable 
subclasses should set their implClass() once during the ctor to ensure 
that the correct type is saved.

It currently handles both fun-txt and fun-xml dialects, but the 
selection of the i/o format is not as transparent to the client as i 
would like (i.e., the client must know which one he wants to 
read/write).

-- 
----- stephan
st...@ei... - http://www.einsurance.de
"Let's do what we do best and run out of here
screaming in fear!" -- Shaggy, to Scooby