I have been using a set of Unicode classes that I wrote that follow the STL common conventions for a while. These include unicode::ustring to replace std::string, unicode::uifstream to replace std::uifstream, and unicode::uofstream to replace std::ofstream. Is there any interest in adding them to Boost? I was pretty shocked to find that boost doesn't already have something like this (or maybe it does and I just haven't found it). Each of the classes mimics the standard equivalents' design like member names and iterator sub-classes. They also bidirectionally support all of UTF-8, UTF-16, UTF-32/UCS-4, UCS-2, and traditional ASCII. The only thing that I think is lacking is regex - not sure how to go about that. Maybe collaborate with the current boost.regex author(s) to add non-PCRE Unicode support? Note: I am happy do the necessary work to make the library meet Boost's quality standards.