I've reviewed and tested Sergey Karpov's proposed contrib modules
dict_int, dict_xsyn, and test_parser. Attached are the updated
modules. I have not included the necessary contrib/Makefile and
contrib/README additions, nor any patch for the main documentation.
I expect we'll just strip out sections 12.9 and 12.10 in favor of
referencing the contrib modules.
Last call for objections ...
regards, tom lane