App::Info::Handler::Print - Print App::Info event messages 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' ); 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: Prints event messages to "STDOUT". Prints event messages to "STDERR". See the "new()" constructor below for how to have App::Info::Handler::Print print event messages to different filehandle.

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: Constructs a App::Info::Handler::Print object that prints App::Info event messages to "STDERR". Constructs a App::Info::Handler::Print object that prints App::Info event messages to "STDOUT". 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. 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>. David Wheeler <david@justatheory.com> 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 (c) 2002-2004, David Wheeler. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.