From: Paul Mensonides (pmenso57_at_[hidden])
Date: 2003-04-12 19:34:44
Joel de Guzman wrote:
> Hmmm.... how about namespaces (or modules) ? :o)...
>
> #< BOOST_PP // boost PP namespace
> // blah blah blah....
> #>
>
> #< MY_MODULE // my module namespace
> #using BOOST_PP // using boost PP namespace
> // blah blah blah....
> #>
Hi Joel, I'm already in the process of writing a paper with an alternative
version of the above. Problem #1: the operator directives are evil. They are
not visible, and with serve to make code that includes them hard to read. We
need a named alternative at least. Problem #2: No true scoping is achieved:
#<
#define DETAIL 123
#define INTERFACE DETAIL
#export INTERFACE
#>
INTERFACE // ?
This is what I'm going to propose:
# region // unnamed
# import ABC
# define XYZ
# define INTERFACE 123
# export INTERFACE
# endreg
XYZ // XYZ
INTERFACE // 123
# region BOOST
# region DETAIL
# define ABC 123
# endreg
# define INTERFACE BOOST::DETAIL::ABC
# define OTHER 123
# export OTHER
# region A
# define MACRO 123
# endref
# region B
# define MACRO 123
# endif
# export A
# endreg
ABC // ABC
DETAIL::ABC // DETAIL::ABC
BOOST::INTERFACE // 123
OTHER // 123
A::MACRO // 123
B::MACRO // B::MACRO
What do you think?
Paul Mensonides