IO::Pager::Unbuffered(3)                   User Contributed Perl Documentation


NAME
       IO::Pager::Unbuffered - Pipe output to PAGER if destination is a TTY

SYNOPSIS
         use IO::Pager::Unbuffered;
         {
           local $STDOUT = IO::Pager::Unbuffered::open *STDOUT;
           print <<"  HEREDOC" ;
           ...
           A bunch of text later
           HEREDOC
         }

         {
           # You can also use scalar filehandles...
           my $token = IO::Pager::Unbuffered::open($FH) or warn($!);
           print $FH "No globs or barewords for us thanks!\n" while 1;
         }

         {
           # ...or an object interface
           my $token = new IO::Pager::Unbuffered;

           $token->print("OO shiny...\n") while 1;
         }

DESCRIPTION
       IO::Pager subclasses are designed to programmatically decide whether or
       not to pipe a filehandle's output to a program specified in PAGER;
       determined and set by IO::Pager at runtime if not yet defined.

       See IO::Pager for method details.

METHODS
       All methods are inherited from IO::Pager; except for instantiation.

CAVEATS
       You probably want to do something with SIGPIPE eg;

         eval {
           local $SIG{PIPE} = sub { die };
           local $STDOUT = IO::Pager::open(*STDOUT);

           while (1) {
             # Do something
           }
         }

         # Do something else

SEE ALSO
       IO::Pager, IO::Pager::Buffered, IO::Pager::Page,

AUTHOR
       Jerrad Pierce <jpierce@cpan.org>

       Florent Angly <florent.angly@gmail.com>

       This module was inspired by Monte Mitzelfelt's IO::Page 0.02

       Significant proddage provided by Tye McQueen.

COPYRIGHT AND LICENSE
       Copyright (C) 2003-2018 Jerrad Pierce

       o   Thou shalt not claim ownership of unmodified materials.

       o   Thou shalt not claim whole ownership of modified materials.

       o   Thou shalt grant the indemnity of the provider of materials.

       o   Thou shalt use and dispense freely without other restrictions.

       Or, if you prefer:

       This library is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself, either Perl version 5.0 or, at
       your option, any later version of Perl 5 you may have available.

perl v5.38.0                      2023-07-26          IO::Pager::Unbuffered(3)