[Boost-users] iostreams: example code of walk into zip file's filename/subdir

From: David Xiao (davihigh_at_[hidden])
Date: 2006-01-06 10:33:56

Hi Friends:

I am looking for a piece of code which can: input a .zip file name and provide a
callback facility which allow me walking in file structure, as well as survive
from corrupted zip file.

I had read the example code and test code of zlib part in boost::iostreams, it
extract data like this:

//-- copy from iostreams/filter/test.hpp --//
template<typename OutputFilter, typename InputFilter>
bool test_filter_pair( OutputFilter out, 
                       InputFilter in, 
                       const std::string& data, 
                       mpl::true_ )
{
    for ( int inc = default_increment; 
          inc <= default_increment * 40; 
          inc += default_increment )
    {
        array_source  src(data.data(), data.data() + data.size());
        std::string   temp;
        std::string   dest;
        iostreams::copy(src, compose(out, non_blocking_sink(temp, inc)));
        iostreams::copy( 
            compose(in, non_blocking_source(temp, inc)),
            iostreams::back_inserter(dest)
        );
        if (dest != data)
            return false;
    }
    return true;
}

I think it is not gentle because it try catch all data into memory. So there
must be some better way to do?

Rgds, David Xiao