NAME
       KA::Tie::Dir - Access file system via a Perl hash

SYNOPSIS
       use KA::Tie::Dir; use Data::Dumper;

       my %data; tie %data, "KA::Tie::Dir", ( 'dir' => "/" ); print
       Dumper($data{'etc'}{'passwd'});

DESCRIPTION
       KA::Tie::Dir represents file system as a Perl hash. Each hash
       key corresponds to name of a directory or a file. For example,
       for a file "/etc/passwd" it will be $data{'etc'}{'passwd'}. Con-
       tents of the file "/etc/passwd" becomes a value corresponding to
       the $data{'etc'}{'passwd'}.

       Standard handling procedure for directories is to store a list-
       ing of files in the directory as keys. Standard procedure for
       files is to store a contents of the file in the scalar value.

       For certain files with known structure it is possible to define
       subroutines for special handling. "KA::Tie::Dir::System" defines
       subroutines for handling system files and, for starters, has
       'passwd' handling subroutine. "/etc/passwd" can be represented
       asa hash with following structure: $data{'etc'}{'passwd'}{$user-
       name}{$field}.

       Options

       tie %data, "KA::Tie::Dir",
         ( 'dbg' => 0, 'buf_size' => 10, 'dir' => "/" );

       'dbg' - level of debug output
         0 - 'SILENT', default # No output at all, ERRORs are sup-
       pressed
         1 - 'ERROR'           # ERRORs are printed to STDERR
         2 - 'WARNING'         # WARNINGs are printed to STDERR
         3 - 'INFO'            # Information messages
         4 - 'D:IN/OUT'        # Important variables
         5 - 'D:LOGIC'         # Logical desicions
         6 - 'D:VARS'          # Variables

       'buf_size' - buffer limit for file reading

       'dir' - directory to tie to

       Public Methods

       None.

PLATFORMS
       Debian 3.1, Perl, v5.8.8.

       Windows XP, ActiveState Perl, v5.8.8.

CAVEATS
       The module is read only and does not permit overwrite or delete
       files.

       Under Windows '/' corresponds to 'C:'.

       If you try to tie hash %data to '/' and then print
       Dumper(%data), module will traverse the entire file system on
       demand!

BUGS
       None known.

AUTHOR
       Vadim V. Kouevda, initdotd@gmail.com

LICENSE and COPYRIGHT
       Copyright (c) 2003-2007, Vadim V. Kouevda, "KAITS, Inc."

       This library is free software; you may redistribute it and/or
       modify it under the same terms as Perl itself.

       These terms are your choice of any of (1) the Perl Artistic
       Licence, or (2) version 2 of the GNU General Public License as
       published by the Free Software Foundation, or (3) any later ver-
       sion of the GNU General Public License.

       This library is distributed in the hope that it will be useful,
       but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
       General Public License for more details.

       You should have received a copy of the GNU General Public
       License along with this library program; it should be in the
       file COPYING. If not, write to the Free Software Foundation,
       Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA

       For licensing inquiries, contact the author atinitdotd@gmail.com

WARRANTY
       Module comes with ABSOLUTELY NO WARRANTY. For details, see the
       license.

AVAILABILITY
       The latest version can be obtained from CPAN

SEE ALSO
       KA::Tie::Dir::System(3), Tie::File(3)