debian man page for app::info::handler::print

App::Info::Handler::Print(3pm)				User Contributed Perl Documentation			    App::Info::Handler::Print(3pm)

NAME
       App::Info::Handler::Print - Print App::Info event messages

SYNOPSIS
	 use App::Info::Category::FooApp;
	 use App::Info::Handler::Print;

	 my $stdout = App::Info::Handler::Print->new( fh => 'stdout' );
	 my $app = App::Info::Category::FooApp->new( on_info => $stdout );

	 # Or...
	 my $app = App::Info::Category::FooApp->new( on_error => 'stderr' );

DESCRIPTION
       App::Info::Handler::Print objects handle App::Info events by printing their messages to a filehandle. This means that if you want event
       messages to print to a file or to a system filehandle, you can easily do it with this class.  You'll find, however, that
       App::Info::Handler::Print is most effective for info and error events; unknown and prompt events are better handled by event handlers that
       know how to prompt users for data. See App::Info::Handler::Prompt for an example of that functionality.

       Upon loading, App::Info::Handler::Print registers itself with App::Info::Handler, setting up a couple of strings that can be passed to an
       App::Info concrete subclass constructor. These strings are shortcuts that tell App::Info how to create the proper App::Info::Handler::Print
       object for handling events. The registered strings are:

       stdout
	   Prints event messages to "STDOUT".

       stderr
	   Prints event messages to "STDERR".

       See the "new()" constructor below for how to have App::Info::Handler::Print print event messages to different filehandle.

INTERFACE
   Constructor
       new

	 my $stderr_handler = App::Info::Handler::Print->new;
	 $stderr_handler = App::Info::Handler::Print->new( fh => 'stderr' );
	 my $stdout_handler = App::Info::Handler::Print->new( fh => 'stdout' );
	 my $fh = FileHandle->new($file);
	 my $fh_handler = App::Info::Handler::Print->new( fh => $fh );

       Constructs a new App::Info::Handler::Print and returns it. It can take a single parameterized argument, "fh", which can be any one of the
       following values:

       stderr
	   Constructs a App::Info::Handler::Print object that prints App::Info event messages to "STDERR".

       stdout
	   Constructs a App::Info::Handler::Print object that prints App::Info event messages to "STDOUT".

       FileHandle
       GLOB
	   Pass in a reference and App::Info::Handler::Print will assume that it's a filehandle reference that it can print to. Note that passing
	   in something that can't be printed to will trigger an exception when App::Info::Handler::Print tries to print to it.

       If the "fh" parameter is not passed, "new()" will default to creating an App::Info::Handler::Print object that prints App::Info event
       messages to "STDOUT".

       handler

       This method is called by App::Info to print out the message from events.

BUGS
       Please send bug reports to <bug-app-info@rt.cpan.org> or file them at <http://rt.cpan.org/NoAuth/Bugs.html?Dist=App-Info>.

AUTHOR
       David Wheeler <david@justatheory.com>

SEE ALSO
       App::Info documents the event handling interface.

       App::Info::Handler::Carp handles events by passing their messages Carp module functions.

       App::Info::Handler::Prompt offers event handling more appropriate for unknown and confirm events.

       App::Info::Handler describes how to implement custom App::Info event handlers.

COPYRIGHT AND LICENSE
       Copyright (c) 2002-2008, David Wheeler. Some Rights Reserved.

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

perl v5.10.1							    2011-03-15					    App::Info::Handler::Print(3pm)