NAME

PerlIO::Layers - Querying your filehandle's capabilities

VERSION

Version 0.001

SYNOPSIS

use PerlIO::Layers qw/query_handle/;

if (!query_handle(\*STDOUT, binary)) {
    ...
}

DESCRIPTION

Perl's filehandles are implemented as a stack of layers, with the bottom-most usually doing the actual IO and the higher ones doing buffering, encoding/decoding or transformations. PerlIO::Layers allows you to query the filehandle's properties concerning there layers.

SUBROUTINES

query_handle($fh, $query_name)

This query a filehandle for some information. Currently supported queries include:

• utf8

• crlf

• binary

• buffered

• readable

• open

• temp

AUTHOR

Leon Timmermans, <leont at cpan.org>

BUGS

Please report any bugs or feature requests to bug-perlio-layers at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=PerlIO-Layers. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc PerlIO::Layers

You can also look for information at:

• RT: CPAN's request tracker

  http://rt.cpan.org/NoAuth/Bugs.html?Dist=PerlIO-Layers

• AnnoCPAN: Annotated CPAN documentation

  http://annocpan.org/dist/PerlIO-Layers

• CPAN Ratings

  http://cpanratings.perl.org/d/PerlIO-Layers

• Search CPAN

  http://search.cpan.org/dist/PerlIO-Layers/

LICENSE AND COPYRIGHT

Copyright 2010 Leon Timmermans.

This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License.

See http://dev.perl.org/licenses/ for more information.