yaml-cpp: Unsupported merges

Current version of otherwise great yaml-cpp does not seem to support merges
in a way described for example here:
http://en.wikipedia.org/wiki/YAML#Data_merge_and_references

I don't have a deep knowledge of yaml-cpp internals (I am just its user),
but maybe this is somehow linked with the cloning problem - not yet
sufficiently solved.

I have tested the simple form of a merge in yaml-cpp 0.2.0 on RedHat Linux
3.4.6-9 using gcc 3.4.6 (20060404) - it doesn't work, but at least it
doesn't hurt the parser. With that gcc I am unable to compile 0.2.1 because
of new conversion operators in nodeimpl.h (it reported an error on lines
with "node.Read<T>" and the thing that caused that error was very probably
the templated read).

Do you plan to support merges in some future version?

Original issue reported on code.google.com by pole...@gmail.com on 8 Sep 2009 at 10:38