Re: [Boost-users] boost::filesystem question: iterate upcast directory path string?

From: me22 (me22.ca_at_[hidden])
Date: 2005-12-23 12:40:03

On 23/12/05, David Xiao <davihigh_at_[hidden]> wrote:
> For example I have path "C:\Temp\abcd\hello\", I wish to iterate to get C: ,
> C:\Temp , C:\Temp\abcd , C:\Temp\abcd\hello .
>

I think you have the choice of either using branch_path repeatedly or
using the exposed iterators.

using the iterators, I would guess something similar to the following:
path my_path( "C:\Temp\abcd\hello\", native );
assert( my_path.has_root_path() );
path now_path = my_path.root_path();
my_path = my_path.relative_path();
for ( path::iterator b = my_path.begin(); b != my_path.end(); ++b ) {
    now_path /= *b;
    std::cout << now_path.native_directory_string() << std::endl;
}

That of course assumes they're all directories -- you might want to
choose native_directory_string or native_file_string based on
is_directory.

You might also look at how
http://boost.org/libs/filesystem/doc/convenience.htm#create_directories
is implemented, since it presumably has to do something similar
internally.

- Scott