Re: [cpp-netlib-devel] URI processing (Was Re: Work Left)

[K. G. <kim...@gm...>]

HI Glyn,

On Mon, Oct 13, 2008 at 11:47, Glyn Matthews <gly...@gm...> wrote:
>
>> Most of the specializations are useful on a global level, but at the
>> same time it would be nice to keep the specializations close to the
>> code that uses them, rather than listing unrelated but similar specs
>> (string<message_tag>, string<uri_tag>) one after another.
>>
>> I don't have any good suggestions... Is there a way of reusing
>> tag/traits definitions, so that one can create a 'base' definition
>> with the string stuff, and then 'derive' and add more
>> protocol-specific definitions? I'm just thinking out loud...
>
> I'm not sure what you mean here.  Can you elaborate?

Sure, I'll try.

If we look at this specific example, where we've added basic_uri, it
doesn't share tag with basic_message (default_tags vs.
tags::default_).

So with every template that needs a new tag, but shares traits with
existing classes/templates (typically string, ostringstream, char_),
we have to duplicate these definitions.

That's why I was wondering if there's a mechanism to reuse the traits
between different tags.

Does that even make sense? :)

- Kim