Re: [boost] boost_filesystem bug?

From: Beman Dawes (bdawes_at_[hidden])
Date: 2003-09-22 12:05:17

At 10:05 PM 9/21/2003, Tim Nowaczyk wrote:

 >Is there a limitation on leading dots on directory names in
 >boost::filesystem::path?  The following code aborts on my debian machine
 >with libboost-dev 1.30.0-4
 >
 >---- Code ----
 >#include <iostream>
 >#include <boost/filesystem/path.hpp>
 >
 >int main ()
 >{
 >  boost::filesystem::path p ("/tmp/.temp/1.txt");
 >  std::cout << p.string () << std::endl;
 >  std::cout << p.leaf () << std::endl;
 >  std::cout << p.branch_path ().string () << std::endl;
 >
 >  boost::filesystem::path q ("/tmp/..temp/1.txt");
 >  std::cout << q.string () << std::endl;
 >  std::cout << q.leaf () << std::endl;
 >  std::cout << q.branch_path ().string () << std::endl;
 >}

In the 1.30.0 release, there was a limitation and it was hard-wired.

In the current CVS, the name checking mechanism has had a major update. The 
default name check function is portable_name(), and it prohibits leading 
and trailing periods and hyphens. But you can override that with either one 
of the other name check functions provided or a user provided function. You 
can override the default itself like this:

boost::filesystem::path::default_name_check(
   boost::filesystem::portable_posix_name );

or you can override for a particular constructor like this:

boost::filesystem::path p ("/tmp/.temp/1.txt",
   boost::filesystem::portable_posix_name);

One of the provided functions, no_check, always returns true so in effect 
turns off checking entirely.

HTH,

--Beman