链接C++流

我没用过这个,但是boost的 filtering_stream 也许会有帮助。

a mailing list post 具有 indent.hpp

boost::iostreams::filtering_ostream out; 
indent_filter::push(out,2); 
out.push(std::cout); 

out << "Hello Filter!\n" 
    << indent_in 
    << "this is\n" 
    << "indented\n" 
    << indent_out 
    << "until here\n" 
    ; 

这将导致输出:

Hello Filter! 
  this is 
  indented 
until here