C++ Network Library Code

Implementing tag-based dispatching for string type deduction in the hostname parser.

Test and supporting implementation for invalid formatted hostnames.

Integrating URI implementation to be used in HTTP request message.

Adding network client and server hints.

Using Boost.Spirit classic includes and namespace.

Cleanup of http message test, removing redundant namespace using declarations.

Refactoring fixtures.

I managed to update the unit tests for boost::network::message and boost::network::uri ... this is works and also applies for std::wstring. However, I've had to update the directives in order to make this work... we need to return to this because it's not generic. But it works, and it's a measurable improvement (we had no tests for std::wstring before).

One final test is to define a fake string & ostringstream that can verify that boost::network::basic_message is genuinely generic.

Furthermore, URI tests were update, and basic URI works with std::wstring. However, boost::network::http doesn't support wstring at all yet (neither URI nor message).

Minor changes - it's becoming clear that using directives won't work in their current implementation. For a hint why, see network/message/directives/header.hpp:55: the directives themselves are specialized on the tag which defeats the purpose. Therefore, none of the unit tests for std::wstring will compile.

The only solution I can think of is to add a function argument:

namespace bn = boost::network;
bn::message instance;
instance << bn::header("name", "value", bn::tags::default_());

but this isn't very clean.